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libcaldav
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Remove obsolete svn directories.

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pull/1/head r14.0.6
Darrell Anderson 12 years ago
parent 6949915a0f
commit 074fd7751d
24 changed files with 0 additions and 5940 deletions
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src/.svn/all-wcprops
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K 25
svn:wc:ra_dav:version-url
V 40
/svnroot/libcaldav/!svn/ver/42/trunk/src
END
delete-caldav-object.c
K 25
svn:wc:ra_dav:version-url
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/svnroot/libcaldav/!svn/ver/41/trunk/src/delete-caldav-object.c
END
caldav.h
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svn:wc:ra_dav:version-url
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/svnroot/libcaldav/!svn/ver/39/trunk/src/caldav.h
END
get-display-name.c
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svn:wc:ra_dav:version-url
V 59
/svnroot/libcaldav/!svn/ver/41/trunk/src/get-display-name.c
END
Makefile.in
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svn:wc:ra_dav:version-url
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/svnroot/libcaldav/!svn/ver/42/trunk/src/Makefile.in
END
delete-caldav-object.h
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svn:wc:ra_dav:version-url
V 62
/svnroot/libcaldav/!svn/ver/1/trunk/src/delete-caldav-object.h
END
get-display-name.h
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svn:wc:ra_dav:version-url
V 58
/svnroot/libcaldav/!svn/ver/1/trunk/src/get-display-name.h
END
get-caldav-report.c
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svn:wc:ra_dav:version-url
V 60
/svnroot/libcaldav/!svn/ver/41/trunk/src/get-caldav-report.c
END
modify-caldav-object.c
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svn:wc:ra_dav:version-url
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/svnroot/libcaldav/!svn/ver/41/trunk/src/modify-caldav-object.c
END
lock-caldav-object.c
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svn:wc:ra_dav:version-url
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/svnroot/libcaldav/!svn/ver/41/trunk/src/lock-caldav-object.c
END
add-caldav-object.c
K 25
svn:wc:ra_dav:version-url
V 60
/svnroot/libcaldav/!svn/ver/41/trunk/src/add-caldav-object.c
END
get-caldav-report.h
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svn:wc:ra_dav:version-url
V 60
/svnroot/libcaldav/!svn/ver/39/trunk/src/get-caldav-report.h
END
md5.c
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svn:wc:ra_dav:version-url
V 45
/svnroot/libcaldav/!svn/ver/1/trunk/src/md5.c
END
options-caldav-server.c
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svn:wc:ra_dav:version-url
V 64
/svnroot/libcaldav/!svn/ver/41/trunk/src/options-caldav-server.c
END
caldav-utils.c
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svn:wc:ra_dav:version-url
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/svnroot/libcaldav/!svn/ver/42/trunk/src/caldav-utils.c
END
Makefile.am
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svn:wc:ra_dav:version-url
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/svnroot/libcaldav/!svn/ver/39/trunk/src/Makefile.am
END
modify-caldav-object.h
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svn:wc:ra_dav:version-url
V 62
/svnroot/libcaldav/!svn/ver/1/trunk/src/modify-caldav-object.h
END
lock-caldav-object.h
K 25
svn:wc:ra_dav:version-url
V 60
/svnroot/libcaldav/!svn/ver/9/trunk/src/lock-caldav-object.h
END
add-caldav-object.h
K 25
svn:wc:ra_dav:version-url
V 59
/svnroot/libcaldav/!svn/ver/1/trunk/src/add-caldav-object.h
END
caldav.c
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svn:wc:ra_dav:version-url
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/svnroot/libcaldav/!svn/ver/39/trunk/src/caldav.c
END
md5.h
K 25
svn:wc:ra_dav:version-url
V 45
/svnroot/libcaldav/!svn/ver/1/trunk/src/md5.h
END
options-caldav-server.h
K 25
svn:wc:ra_dav:version-url
V 64
/svnroot/libcaldav/!svn/ver/10/trunk/src/options-caldav-server.h
END
caldav-utils.h
K 25
svn:wc:ra_dav:version-url
V 55
/svnroot/libcaldav/!svn/ver/34/trunk/src/caldav-utils.h
END

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https://libcaldav.svn.sourceforge.net/svnroot/libcaldav/trunk/src
https://libcaldav.svn.sourceforge.net/svnroot/libcaldav
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src/.svn/text-base/Makefile.am.svn-base
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AUTOMAKE_OPTIONS = gnu
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-I$(top_srcdir) -I$(top_builddir)
if STATIC_LINK
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caldav.h \
caldav.c \
add-caldav-object.c \
add-caldav-object.h \
delete-caldav-object.c \
delete-caldav-object.h \
modify-caldav-object.c \
modify-caldav-object.h \
get-caldav-report.c \
get-caldav-report.h \
get-display-name.c \
get-display-name.h \
caldav-utils.c \
caldav-utils.h \
md5.c \
md5.h \
options-caldav-server.c \
options-caldav-server.h \
lock-caldav-object.c \
lock-caldav-object.h \
get-freebusy-report.c \
get-freebusy-report.h
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delete-caldav-object.h \
modify-caldav-object.h \
get-caldav-report.h \
caldav-utils.h
libcaldav_la_LIBADD = \
@CURL_LIBS@ \
@GLIB_LIBS@

649
src/.svn/text-base/Makefile.in.svn-base
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@STATIC_LINK_TRUE@noinst_LTLIBRARIES = libcaldav.la
@DYNAMIC_LINK_TRUE@lib_LTLIBRARIES = libcaldav.la
libcaldav_la_LDFLAGS = -version-info @LIBVERSION@
libcaldav_la_SOURCES = \
caldav.h \
caldav.c \
add-caldav-object.c \
add-caldav-object.h \
delete-caldav-object.c \
delete-caldav-object.h \
modify-caldav-object.c \
modify-caldav-object.h \
get-caldav-report.c \
get-caldav-report.h \
get-display-name.c \
get-display-name.h \
caldav-utils.c \
caldav-utils.h \
md5.c \
md5.h \
options-caldav-server.c \
options-caldav-server.h \
lock-caldav-object.c \
lock-caldav-object.h \
get-freebusy-report.c \
get-freebusy-report.h
libcaldav_includedir = $(includedir)/libcaldav-@VERSION@
libcaldav_include_HEADERS = caldav.h
noinst_HEADERS = \
add-caldav-object.h \
delete-caldav-object.h \
modify-caldav-object.h \
get-caldav-report.h \
caldav-utils.h
libcaldav_la_LIBADD = \
@CURL_LIBS@ \
@GLIB_LIBS@
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for p in $$list; do \
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cd "$(DESTDIR)$(libcaldav_includedir)" && rm -f $$files
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mkid -fID $$unique
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# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

131
src/.svn/text-base/add-caldav-object.c.svn-base
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@ -1,131 +0,0 @@
/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "add-caldav-object.h"
#include <glib.h>
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* Function for adding a new event.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_add(caldav_settings* settings, caldav_error* error) {
CURL* curl;
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE];
struct config_data data;
struct MemoryStruct chunk;
struct MemoryStruct headers;
struct curl_slist *http_header = NULL;
gboolean result = FALSE;
gchar* url;
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
curl = get_curl(settings);
if (!curl) {
error->code = -1;
error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return TRUE;
}
http_header = curl_slist_append(http_header,
"Content-Type: text/calendar; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "If-None-Match: *");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(http_header, "Transfer-Encoding:");
data.trace_ascii = settings->trace_ascii;
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'headers' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
if (settings->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
gchar* tmp = random_file_name(settings->file);
gchar* s = rebuild_url(settings, NULL);
if (g_str_has_suffix(s, "/")) {
url = g_strdup_printf("%slibcaldav-%s.ics", s, tmp);
}
else {
url = g_strdup_printf("%s/libcaldav-%s.ics", s, tmp);
}
g_free(s);
g_free(tmp);
curl_easy_setopt(curl, CURLOPT_URL, url);
tmp = g_strdup(settings->file);
g_free(settings->file);
settings->file = verify_uid(tmp);
g_free(tmp);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, settings->file);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(settings->file));
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
if (res != 0) {
error->code = -1;
error->str = g_strdup_printf("%s", error_buf);
g_free(settings->file);
settings->file = NULL;
result = TRUE;
}
else {
long code;
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 201) {
error->str = g_strdup(chunk.memory);
error->code = code;
result = TRUE;
}
}
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_slist_free_all(http_header);
curl_easy_cleanup(curl);
return result;
}

35
src/.svn/text-base/add-caldav-object.h.svn-base
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@ -1,35 +0,0 @@
/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __ADD_CALDAV_OBJECT_H__
#define __ADD_CALDAV_OBJECT_H__
#include "caldav-utils.h"
#include "caldav.h"
/**
* Function for adding a new event.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_add(caldav_settings* settings, caldav_error* error);
#endif

713
src/.svn/text-base/caldav-utils.c.svn-base
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@ -1,713 +0,0 @@
/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "caldav-utils.h"
#include "md5.h"
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <curl/curl.h>
#include <ctype.h>
/**
* This function is burrowed from the libcurl documentation
* @param text
* @param stream
* @param ptr
* @param size
* @param nohex
*/
void dump(const char* text, FILE* stream, char* ptr, size_t size, char nohex) {
size_t i;
size_t c;
unsigned int width=0x10;
if(nohex)
/* without the hex output, we can fit more on screen */
width = 0x40;
fprintf(stream, "%s, %zd bytes (0x%zx)\n", text, size, size);
for(i=0; i<size; i+= width) {
fprintf(stream, "%04zx: ", i);
if(!nohex) {
/* hex not disabled, show it */
for(c = 0; c < width; c++) {
if(i+c < size)
fprintf(stream, "%02x ", ptr[i+c]);
else
fputs(" ", stream);
}
}
for(c = 0; (c < width) && (i+c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if (nohex && (i+c+1 < size) && ptr[i+c]==0x0D && ptr[i+c+1]==0x0A) {
i+=(c+2-width);
break;
}
fprintf(stream, "%c",(ptr[i+c]>=0x20) && (ptr[i+c]<0x80)?ptr[i+c]:'.');
/* check again for 0D0A, to avoid an extra \n if it's at width */
if (nohex && (i+c+2 < size) && ptr[i+c+1]==0x0D && ptr[i+c+2]==0x0A) {
i+=(c+3-width);
break;
}
}
fputc('\n', stream); /* newline */
}
fflush(stream);
}
/**
* This function is burrowed from the libcurl documentation
* @param handle
* @param type
* @param data
* @param size
* @param userp
* @return
*/
int my_trace(CURL* handle, curl_infotype type, char* data, size_t size, void* userp) {
struct config_data* config = (struct config_data *)userp;
const char* text;
(void)handle; /* prevent compiler warning */
switch (type) {
case CURLINFO_TEXT:
fprintf(stderr, "== Info: %s", data);
default: /* in case a new one is introduced to shock us */
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
}
dump(text, stderr, data, size, config->trace_ascii);
return 0;
}
/**
* This function is burrowed from the libcurl documentation
* @param ptr
* @param size
* @return void* to memory region
*/
static void* myrealloc(void* ptr, size_t size) {
/* There might be a realloc() out there that doesn't like reallocing
* NULL pointers, so we take care of it here
* */
if(ptr)
return realloc(ptr, size);
else
return malloc(size);
}
/**
* This function is burrowed from the libcurl documentation
* @param ptr
* @param size
* @param nmemb
* @param data
* @return number of written bytes
*/
size_t WriteMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data) {
size_t realsize = size * nmemb;
struct MemoryStruct* mem = (struct MemoryStruct *)data;
mem->memory = (char *)myrealloc(mem->memory, mem->size + realsize + 1);
if (mem->memory) {
memcpy(&(mem->memory[mem->size]), ptr, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
}
return realsize;
}
/**
* This function is burrowed from the libcurl documentation
* @param ptr
* @param size
* @param nmemb
* @param data
* @return number of written bytes
*/
size_t WriteHeaderCallback(void* ptr, size_t size, size_t nmemb, void* data) {
size_t realsize = size * nmemb;
struct MemoryStruct* mem = (struct MemoryStruct *)data;
mem->memory = (char *)myrealloc(mem->memory, mem->size + realsize + 1);
if (mem->memory) {
memcpy(&(mem->memory[mem->size]), ptr, realsize);
mem->size += realsize;
mem->memory[mem->size] = 0;
}
return realsize;
}
/*
size_t ReadMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data){
struct MemoryStruct* mem = (struct MemoryStruct *)data;
memcpy(ptr, mem->memory, mem->size);
return mem->size;
}
*/
/**
* Initialize caldav settings structure.
* @param settings @see caldav_settings
*/
void init_caldav_settings(caldav_settings* settings) {
settings->username = NULL;
settings->password = NULL;
settings->url = NULL;
settings->file = NULL;
settings->usehttps = FALSE;
settings->custom_cacert = NULL;
settings->verify_ssl_certificate = TRUE;
settings->debug = FALSE;
settings->trace_ascii = TRUE;
settings->ACTION = UNKNOWN;
settings->start = 0;
settings->end = 0;
}
/**
* Free memory assigned to caldav settings structure.
* @param settings @see caldav_settings
*/
void free_caldav_settings(caldav_settings* settings) {
if (settings->username) {
g_free(settings->username);
settings->username = NULL;
}
if (settings->password) {
g_free(settings->password);
settings->password = NULL;
}
if (settings->url) {
g_free(settings->url);
settings->url = NULL;
}
if (settings->file) {
g_free(settings->file);
settings->file = NULL;
}
if (settings->custom_cacert) {
g_free(settings->custom_cacert);
settings->custom_cacert = NULL;
}
settings->verify_ssl_certificate = TRUE;
settings->usehttps = FALSE;
settings->debug = FALSE;
settings->trace_ascii = TRUE;
settings->ACTION = UNKNOWN;
settings->start = 0;
settings->end = 0;
}
static gchar* place_after_hostname(const gchar* start, const gchar* stop) {
gchar* newpos = NULL;
gchar* pos = (gchar *) stop;
gboolean digit = TRUE;
if (pos && stop && strcmp(start, pos) != 0) {
while (*pos != ':' && strcmp(start, pos) != 0)
--pos;
if (pos > start) {
gchar* tmp = (gchar *) pos + 1;
/* is pos++ a port number */
while (*tmp != '/' && digit) {
if (isdigit(*tmp) != 0) {
digit = TRUE;
tmp++;
}
else
digit = FALSE;
}
if (digit) {
/* pos was a port number */
while (*pos != '@' && strcmp(start, pos) != 0)
--pos;
if (strcmp(start, pos) != 0)
newpos = pos;
}
else {
while (*pos != '@' && pos != stop)
pos++;
if (pos != stop)
newpos = pos;
}
}
else {
/* is a username present */
gchar* tmp = NULL;
while (*pos != '/' && pos != stop) {
if (*pos == '@')
tmp = pos;
pos++;
}
if (tmp && pos != stop)
newpos = tmp;
}
}
return newpos;
}
/**
* Parse URL
* @param settings @see caldav_settings
* @param url String containing URL to collection
*/
void parse_url(caldav_settings* settings, const char* url) {
char* start;
char* pos;
char* end;
char* login;
login = pos = end = start = NULL;
if (!url)
return;
if ((pos = strstr(url, "//")) != NULL) {
/* Does the URL use https ?*/
if (!g_ascii_strncasecmp(url,"https",5) && settings->usehttps == FALSE) {
settings->usehttps=TRUE;
}
start = g_strdup(&(*(pos + 2)));
if ((pos = place_after_hostname(start, strrchr(start, '\0') - 1)) != NULL) {
/* username and/or password present */
login = g_strndup(start, pos - start);
end = pos;
if ((pos = strrchr(login, ':')) != NULL) {
/* both username and password is present */
settings->username = g_strndup(login, pos - login);
settings->password = g_strdup(++pos);
}
else {
/* only username present */
settings->username = g_strdup(login);
settings->password = NULL;
}
g_free(login);
settings->url = g_strdup(++end);
}
else {
/* no username or password present */
settings->url = g_strdup(start);
settings->username = NULL;
settings->password = NULL;
}
g_free(start);
}
}
/**
* Find a specific HTTP header from last request
* @param header HTTP header to search for
* @param headers String of HTTP headers from last request
* @param lowcase Should string be returned in all lower case.
* @return The header found or NULL
*/
#define MAX_TOKENS 2
gchar* get_response_header(
const char* header, gchar* headers, gboolean lowcase) {
gchar* line;
gchar* head = NULL;
gchar* oldhead = NULL;
gchar** buf;
gchar* header_list;
gchar* saveptr;
header_list = g_strdup(headers);
line = strtok_r(header_list, "\r\n", &saveptr);
if (line != NULL) {
do {
buf = g_strsplit(line, ":", MAX_TOKENS);
if (buf[1] != NULL) {
if (g_ascii_strcasecmp(buf[0], header) == 0) {
if (head) {
oldhead = head;
head = g_strconcat(head, ", ", buf[1], NULL);
g_free(oldhead);
}
else
head = g_strdup(buf[1]);
if (head)
g_strstrip(head);
}
}
g_strfreev(buf);
} while ((line = strtok_r(NULL, "\r\n", &saveptr)) != NULL);
}
g_free(header_list);
if (head)
return (lowcase) ? g_ascii_strdown(head, -1) : head;
else
return NULL;
}
static const char* VCAL_HEAD =
"BEGIN:VCALENDAR\r\n"
"PRODID:-//CalDAV Calendar//NONSGML libcaldav//EN\r\n"
"VERSION:2.0\r\n";
static const char* VCAL_FOOT = "END:VCALENDAR";
/**
* Parse response from CalDAV server. Internal function.
* @param report Response from server
* @param element XML element to find
* @param type VCalendar element to find
* @param wrap Is this the final parsing or just a part
* @param recursive Stop after first match or not
* @return the parsed result
*/
static gchar* parse_caldav_report_wrap(
char* report, const char* element, const char* type,
gboolean wrap, gboolean recursive) {
char* pos;
char* start;
char* object;
char* tmp_report;
char* tmp;
gchar* response;
gchar* begin_type;
gchar* end_type;
gboolean keep_going = TRUE;
begin_type = g_strdup_printf("BEGIN:%s", type);
end_type = g_strdup_printf("END:%s", type);
pos = start = object = response = NULL;
tmp_report = g_strdup(report);
while ((pos = strstr(tmp_report, element)) != NULL && keep_going) {
pos = strchr(pos, '>');
if (!pos) {
break;
}
pos = &(*(pos + 1));
pos = strstr(pos, begin_type);
if (!pos) {
break;
}
object = &(*(pos + strlen(begin_type)));
object = g_strchug(object);
start = g_strdup(object);
if ((pos = strstr(start, end_type)) == NULL) {
g_free(start);
break;
}
object = g_strndup(start, strlen(start) - strlen(pos));
if (response) {
tmp = g_strdup(response);
g_free(response);
response = g_strdup_printf("%s%s\r\n%s%s\r\n",
tmp, begin_type, object, end_type);
g_free(tmp);
}
else {
if (wrap)
response = g_strdup_printf("%s%s\r\n%s%s\r\n",
VCAL_HEAD, begin_type, object, end_type);
else
response = g_strdup_printf("%s\r\n%s%s\r\n",
begin_type, object, end_type);
}
if (recursive) {
pos = strchr(pos, '>');
g_free(tmp_report);
tmp_report = g_strdup(&(*(pos + 1)));
}
else {
keep_going = FALSE;
}
g_free(start);
g_free(object);
}
g_free(tmp_report);
g_free(begin_type);
g_free(end_type);
if (wrap)
if (response) {
object = g_strdup(response);
g_free(response);
response = g_strdup_printf("%s%s", object, VCAL_FOOT);
g_free(object);
}
return response;
}
/**
* Parse response from CalDAV server
* @param report Response from server
* @param element XML element to find
* @param type VCalendar element to find
* @return the parsed result
*/
gchar* parse_caldav_report(char* report, const char* element, const char* type) {
gchar* response = NULL;
gchar* timezone = NULL;
gchar* temp = NULL;
if (!report || !element || !type)
return NULL;
/* test for VTIMEZONE.
* Only the first found will be used and this will then
* be the time zone for the entire report
*/
timezone = parse_caldav_report_wrap(
report, element, "VTIMEZONE", FALSE, FALSE);
if (timezone) {
response = g_strdup_printf("%s%s", VCAL_HEAD, timezone);
g_free(timezone);
temp = parse_caldav_report_wrap(report, element, type, FALSE, TRUE);
if (temp) {
gchar* tmp = g_strdup(response);
g_free(response);
response = g_strdup_printf("%s%s%s", tmp, temp, VCAL_FOOT);
g_free(tmp);
g_free(temp);
}
else {
g_free(response);
return NULL;
}
}
else
response = parse_caldav_report_wrap(report, element, type, TRUE, TRUE);
return response;
}
/**
* Convert a time_t variable to CalDAV DateTime
* @param time a specific date and time
* @return the CalDAV DateTime
*/
gchar* get_caldav_datetime(time_t* time) {
struct tm *current;
gchar* datetime;
current = localtime(time);
datetime = g_strdup_printf("%d%.2d%.2dT%.2d%.2d%.2dZ",
current->tm_year + 1900, current->tm_mon + 1, current->tm_mday,
current->tm_hour, current->tm_min, current->tm_sec);
return datetime;
}
/**
* Create a random text string, using MD5. @see caldav_md5_hex_digest()
* @param text some text to randomize
* @return MD5 hash of text
*/
gchar* random_file_name(gchar* text) {
unsigned char* name;
gchar md5sum[33];
name = (unsigned char *) g_strdup(text);
caldav_md5_hex_digest(md5sum, name);
g_free(name);
return g_strdup(md5sum);
}
/**
* Does the event contain a UID element or not. If not add it.
* @param object A specific event
* @return event, eventually added UID
*/
gchar* verify_uid(gchar* object) {
gchar* uid;
gchar* newobj;
gchar* pos;
newobj = g_strdup(object);
uid = get_response_header("uid", object, TRUE);
if (!uid) {
object = g_strdup(newobj);
g_free(newobj);
pos = strstr(object, "END:VEVENT");
newobj = g_strndup(object, strlen(object) - strlen(pos));
newobj = g_strchomp(newobj);
uid = random_file_name(object);
gchar*tmp = g_strdup(newobj);
g_free(newobj);
newobj = g_strdup_printf("%s\r\nUID:libcaldav-%s@tempuri.org\r\n%s",
tmp, uid, pos);
g_free(uid);
g_free(tmp);
g_free(object);
}
else
g_free(uid);
/*uid = g_strdup(newobj);
g_free(newobj);*/
g_strchomp(newobj);
/*g_free(uid);*/
return newobj;
}
/**
* Fetch a URL from a XML element
* @param text String
* @return URL
*/
#define ELEM_HREF "href>"
gchar* get_url(gchar* text) {
gchar* pos;
gchar* url = NULL;
if ((pos = strstr(text, ELEM_HREF)) == NULL)
return url;
pos = &(*(pos + strlen(ELEM_HREF)));
url = g_strndup(pos, strlen(pos) - strlen(strchr(pos, '<')));
return url;
}
/**
* Fetch any element from XML
* @param text String
* @param tag The element to look for
* @return element
*/
gchar* get_tag(const gchar* tag, gchar* text) {
gchar *pos;
gchar* res = NULL;
gchar* the_tag = NULL;
/*printf("%s\n", text);*/
the_tag = g_strdup_printf("<%s>", tag);
if ((pos = strstr(text, the_tag)) == NULL) {
g_free(the_tag);
return res;
}
pos = &(*(pos + strlen(the_tag)));
res = g_strndup(pos, strlen(pos) - strlen(strchr(pos, '<')));
g_free(the_tag);
return res;
}
/**
* Fetch the etag element from XML
* @param text String
* @return etag
*/
#define ELEM_ETAG "getetag"
gchar* get_etag(gchar* text) {
gchar* etag = NULL;
etag = get_tag(ELEM_ETAG, text);
/* Maybe namespace prefixed */
if (!etag) {
etag = get_tag("D:getetag", text);
}
return etag;
}
/**
* Fetch host from URL
* @param url URL
* @return host
*/
gchar* get_host(gchar* url) {
gchar** buf;
gchar* result = NULL;
buf = g_strsplit(url, "/", 2);
if (buf[0]) {
result = g_strdup(buf[0]);
}
g_strfreev(buf);
return result;
}
/**
* rebuild a raw URL with https if needed from the settings
* @param settings caldav_settings
* @param uri URI to use instead of base
* @return URL
*/
gchar* rebuild_url(caldav_settings* settings, gchar* uri){
gchar* url = NULL;
gchar* mystr = NULL;
if (settings->usehttps) {
mystr = "https://";
} else {
mystr = "http://";
}
if (uri)
url = g_strdup_printf("%s%s", mystr, uri);
else
url = g_strdup_printf("%s%s", mystr,settings->url);
return url;
}
/**
* Prepare a curl connection
* @param settings caldav_settings
* @return CURL
*/
CURL* get_curl(caldav_settings* setting) {
CURL* curl;
gchar* userpwd = NULL;
gchar* url = NULL;
curl = curl_easy_init();
if (curl) {
if (setting->username) {
if (setting->password)
userpwd = g_strdup_printf("%s:%s",
setting->username, setting->password);
else
userpwd = g_strdup_printf("%s", setting->username);
curl_easy_setopt(curl, CURLOPT_USERPWD, userpwd);
g_free(userpwd);
}
if (setting->verify_ssl_certificate)
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2);
else {
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
}
if (setting->custom_cacert)
curl_easy_setopt(curl, CURLOPT_CAINFO, setting->custom_cacert);
curl_easy_setopt(curl, CURLOPT_USERAGENT, __CALDAV_USERAGENT);
url = rebuild_url(setting, NULL);
curl_easy_setopt(curl, CURLOPT_URL, url);
g_free(url);
}
return (curl) ? curl : NULL;
}

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __CALDAV_UTILS_H__
#define __CALDAV_UTILS_H__
#include <glib.h>
#include <stdlib.h>
#include <curl/curl.h>
#include "caldav.h"
/**
* @typedef struct _CALDAV_SETTINGS caldav_settings
* A pointer to a struct _CALDAV_SETTINGS
*/
typedef struct _CALDAV_SETTINGS caldav_settings;
/**
* @struct _CALDAV_SETTINGS
* A struct used to exchange all user input between various parts
* of the library
*/
struct _CALDAV_SETTINGS {
gchar* username;
gchar* password;
gchar* url;
gchar* file;
gboolean usehttps;
gboolean verify_ssl_certificate;
gchar* custom_cacert;
gboolean debug;
gboolean use_locking;
char trace_ascii;
CALDAV_ACTION ACTION;
time_t start;
time_t end;
};
/**
* @typedef struct MemoryStruct memory_ptr
* A pointer to a struct MemoryStruct
*/
typedef struct MemoryStruct memory_ptr;
/**
* @struct MemoryStruct
* Used to hold messages between the CalDAV server and the library
*/
struct MemoryStruct {
char *memory;
size_t size;
};
/** @struct config_data
* Used to exchange user options to the library
*/
struct config_data {
char trace_ascii;
};
/**
* This function is burrowed from the libcurl documentation
* @param text
* @param stream
* @param ptr
* @param size
* @param nohex
*/
void dump(const char* text, FILE* stream, char* ptr, size_t size, char nohex);
/**
* This function is burrowed from the libcurl documentation
* @param handle
* @param type
* @param data
* @param size
* @param userp
* @return
*/
int my_trace(CURL* handle, curl_infotype type, char* data, size_t size, void* userp);
/**
* This function is burrowed from the libcurl documentation
* @param ptr
* @param size
* @return void* to memory region
*/
size_t WriteMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data);
/**
* This function is burrowed from the libcurl documentation
* @param ptr
* @param size
* @param nmemb
* @param data
* @return number of written bytes
*/
size_t WriteHeaderCallback(void* ptr, size_t size, size_t nmemb, void* data);
/*size_t ReadMemoryCallback(void* ptr, size_t size, size_t nmemb, void* data);*/
/**
* Initialize caldav settings structure.
* @param settings @see caldav_settings
*/
void init_caldav_settings(caldav_settings* settings);
/**
* Free momory assigned to caldav settings structure.
* @param settings @see caldav_settings
*/
void free_caldav_settings(caldav_settings* settings);
/**
* Parse URL
* @param settings @see caldav_settings
* @param url String containing URL to collection
*/
void parse_url(caldav_settings* settings, const char* url);
/**
* Find a specific HTTP header from last request
* @param header HTTP header to search for
* @param headers String of HTTP headers from last request
* @param lowcase Should string be returned in all lower case.
* @return The header found or NULL
*/
gchar* get_response_header(
const char* header, gchar* headers, gboolean lowcase);
/**
* Parse response from CalDAV server
* @param report Response from server
* @param element XML element to find
* @param type VCalendar element to find
* @return the parsed result
*/
gchar* parse_caldav_report(char* report, const char* element, const char* type);
/**
* Convert a time_t variable to CalDAV DateTime
* @param time a specific date and time
* @return the CalDAV DateTime
*/
gchar* get_caldav_datetime(time_t* time);
/**
* Create a random text string, using MD5. @see caldav_md5_hex_digest()
* @param text some text to randomize
* @return MD5 hash of text
*/
gchar* random_file_name(gchar* text);
/**
* Does the event contain a UID element or not. If not add it.
* @param object A specific event
* @return event, eventually added UID
*/
gchar* verify_uid(gchar* object);
/**
* Fetch a URL from a XML element
* @param text String
* @return URL
*/
gchar* get_url(gchar* text);
/**
* Fetch host from URL
* @param url URL
* @return host
*/
gchar* get_host(gchar* url);
/**
* Fetch the etag element from XML
* @param text String
* @return etag
*/
gchar* get_etag(gchar* text);
/**
* Fetch any element from XML
* @param text String
* @return element
*/
gchar* get_tag(const gchar* tag, gchar* text);
/**
* rebuild a raw URL with https if needed from the settings
* @param settings caldav_settings
* @return URL
*/
gchar* rebuild_url(caldav_settings* setting, gchar* uri);
/**
* Prepare a curl connection
* @param settings caldav_settings
* @return CURL
*/
CURL* get_curl(caldav_settings* setting);
#endif

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "caldav.h"
#include "caldav-utils.h"
#include "get-caldav-report.h"
#include "add-caldav-object.h"
#include "delete-caldav-object.h"
#include "modify-caldav-object.h"
#include "get-display-name.h"
#include "options-caldav-server.h"
#include "get-freebusy-report.h"
#include <curl/curl.h>
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static void init_runtime(runtime_info* info) {
if (! info)
return;
if (! info->error)
info->error = g_new0(caldav_error, 1);
if (! info->options) {
info->options = g_new0(debug_curl, 1);
info->options->trace_ascii = 1;
info->options->debug = 0;
info->options->verify_ssl_certificate = TRUE;
info->options->use_locking = TRUE;
info->options->custom_cacert = NULL;
}
}
/**
* @param curl An instance of libcurl.
* @param settings Defines CalDAV resource. Receiver is responsible for freeing
* the memory. URL is part of the structure. [http://][username:password@]host[:port]/url-path.
* See (RFC1738).
* @return FALSE (zero) mens URL does not reference a CalDAV calendar
* resource. TRUE if the URL does reference a CalDAV calendar resource.
*/
static gboolean test_caldav_enabled(CURL* curl,
caldav_settings* settings,
caldav_error* error) {
return caldav_getoptions(curl, settings, NULL, error, TRUE);
}
/*
* @param settings An instance of caldav_settings. @see caldav_settings
* @return TRUE if there was an error. Error can be in libcurl, in libcaldav,
* or an error related to the CalDAV protocol.
*/
static gboolean make_caldav_call(caldav_settings* settings,
runtime_info* info) {
CURL* curl;
gboolean result = FALSE;
g_return_val_if_fail(info != NULL, TRUE);
curl = get_curl(settings);
if (!curl) {
info->error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return TRUE;
}
if (!test_caldav_enabled(curl, settings, info->error)) {
g_free(settings->file);
settings->file = NULL;
curl_easy_cleanup(curl);
return TRUE;
}
curl_easy_cleanup(curl);
switch (settings->ACTION) {
case GETALL: result = caldav_getall(settings, info->error); break;
case GET: result = caldav_getrange(settings, info->error); break;
case ADD: result = caldav_add(settings, info->error); break;
case DELETE: result = caldav_delete(settings, info->error); break;
case MODIFY: result = caldav_modify(settings, info->error); break;
case GETCALNAME: result = caldav_getname(settings, info->error); break;
case FREEBUSY: result = caldav_freebusy(settings, info->error); break;
default: break;
}
return result;
}
/**
* Function for adding a new event.
* @param object Appointment following ICal format (RFC2445). Receiver is
* responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_add_object(const char* object,
const char* URL,
runtime_info* info) {
caldav_settings settings;
CALDAV_RESPONSE caldav_response;
g_return_val_if_fail(info != NULL, TRUE);
init_runtime(info);
init_caldav_settings(&settings);
settings.file = g_strdup(object);
settings.ACTION = ADD;
if (info->options->debug)
settings.debug = TRUE;
else
settings.debug = FALSE;
if (info->options->trace_ascii)
settings.trace_ascii = 1;
else
settings.trace_ascii = 0;
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
parse_url(&settings, URL);
gboolean res = make_caldav_call(&settings, info);
if (res) {
if (info->error->code > 0) {
switch (info->error->code) {
case 403: caldav_response = FORBIDDEN; break;
case 409: caldav_response = CONFLICT; break;
case 423: caldav_response = LOCKED; break;
case 501: caldav_response = NOTIMPLEMENTED; break;
default: caldav_response = CONFLICT; break;
}
}
else {
/* fall-back to conflicting state */
caldav_response = CONFLICT;
}
}
else {
caldav_response = OK;
}
free_caldav_settings(&settings);
return caldav_response;
}
/**
* Function for deleting an event.
* @param object Appointment following ICal format (RFC2445). Receiver is
* responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_delete_object(const char* object,
const char* URL,
runtime_info* info) {
caldav_settings settings;
CALDAV_RESPONSE caldav_response;
g_return_val_if_fail(info != NULL, TRUE);
init_runtime(info);
init_caldav_settings(&settings);
settings.file = g_strdup(object);
settings.ACTION = DELETE;
if (info->options->debug)
settings.debug = TRUE;
else
settings.debug = FALSE;
if (info->options->trace_ascii)
settings.trace_ascii = 1;
else
settings.trace_ascii = 0;
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
parse_url(&settings, URL);
gboolean res = make_caldav_call(&settings, info);
if (res) {
if (info->error->code > 0) {
switch (info->error->code) {
case 403: caldav_response = FORBIDDEN; break;
case 409: caldav_response = CONFLICT; break;
case 423: caldav_response = LOCKED; break;
case 501: caldav_response = NOTIMPLEMENTED; break;
default: caldav_response = CONFLICT; break;
}
}
else {
/* fall-back to conflicting state */
caldav_response = CONFLICT;
}
}
else {
caldav_response = OK;
}
free_caldav_settings(&settings);
return caldav_response;
}
/**
* Function for modifying an event.
* @param object Appointment following ICal format (RFC2445). Receiver is
* responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_modify_object(const char* object,
const char* URL,
runtime_info* info) {
caldav_settings settings;
CALDAV_RESPONSE caldav_response;
g_return_val_if_fail(info != NULL, TRUE);
init_runtime(info);
init_caldav_settings(&settings);
settings.file = g_strdup(object);
settings.ACTION = MODIFY;
if (info->options->debug)
settings.debug = TRUE;
else
settings.debug = FALSE;
if (info->options->trace_ascii)
settings.trace_ascii = 1;
else
settings.trace_ascii = 0;
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
parse_url(&settings, URL);
gboolean res = make_caldav_call(&settings, info);
if (res) {
if (info->error->code > 0) {
switch (info->error->code) {
case 403: caldav_response = FORBIDDEN; break;
case 409: caldav_response = CONFLICT; break;
case 423: caldav_response = LOCKED; break;
case 501: caldav_response = NOTIMPLEMENTED; break;
default: caldav_response = CONFLICT; break;
}
}
else {
/* fall-back to conflicting state */
caldav_response = CONFLICT;
}
}
else {
caldav_response = OK;
}
free_caldav_settings(&settings);
return caldav_response;
}
/**
* Function for getting a collection of events determined by time range.
* @param result A pointer to struct _response where the result is to stored.
* @see response. Caller is responsible for freeing the memory.
* @param start time_t variable specifying start and end for range. Both
* are included in range.
* @param end time_t variable specifying start and end for range. Both
* are included in range.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_get_object(response *result,
time_t start,
time_t end,
const char* URL,
runtime_info* info) {
caldav_settings settings;
CALDAV_RESPONSE caldav_response;
g_return_val_if_fail(info != NULL, TRUE);
init_runtime(info);
if (!result) {
result = malloc(sizeof(response *));
memset(result, '\0', sizeof(response *));
}
init_caldav_settings(&settings);
settings.ACTION = GET;
settings.start = start;
settings.end = end;
if (info->options->debug)
settings.debug = TRUE;
else
settings.debug = FALSE;
if (info->options->trace_ascii)
settings.trace_ascii = 1;
else
settings.trace_ascii = 0;
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
parse_url(&settings, URL);
gboolean res = make_caldav_call(&settings, info);
if (res) {
result->msg = NULL;
if (info->error->code > 0) {
switch (info->error->code) {
case 403: caldav_response = FORBIDDEN; break;
case 409: caldav_response = CONFLICT; break;
case 423: caldav_response = LOCKED; break;
case 501: caldav_response = NOTIMPLEMENTED; break;
default: caldav_response = CONFLICT; break;
}
}
else {
/* fall-back to conflicting state */
caldav_response = CONFLICT;
}
}
else {
result->msg = g_strdup(settings.file);
caldav_response = OK;
}
free_caldav_settings(&settings);
return caldav_response;
}
/**
* Function for getting all events from the collection.
* @param result A pointer to struct _response where the result is to stored.
* @see response. Caller is responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_getall_object(response* result,
const char* URL,
runtime_info* info) {
caldav_settings settings;
CALDAV_RESPONSE caldav_response;
g_return_val_if_fail(info != NULL, TRUE);
init_runtime(info);
if (!result) {
result = malloc(sizeof(response *));
memset(result, '\0', sizeof(response *));
}
init_caldav_settings(&settings);
settings.ACTION = GETALL;
if (info->options->debug)
settings.debug = TRUE;
else
settings.debug = FALSE;
if (info->options->trace_ascii)
settings.trace_ascii = 1;
else
settings.trace_ascii = 0;
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
parse_url(&settings, URL);
gboolean res = make_caldav_call(&settings, info);
if (res) {
result->msg = NULL;
if (info->error->code > 0) {
switch (info->error->code) {
case 403: caldav_response = FORBIDDEN; break;
case 409: caldav_response = CONFLICT; break;
case 423: caldav_response = LOCKED; break;
case 501: caldav_response = NOTIMPLEMENTED; break;
default: caldav_response = CONFLICT; break;
}
}
else {
/* fall-back to conflicting state */
caldav_response = CONFLICT;
}
}
else {
result->msg = g_strdup(settings.file);
caldav_response = OK;
}
free_caldav_settings(&settings);
return caldav_response;
}
/**
* Function for getting the stored display name for the collection.
* @param result A pointer to struct _response where the result is to stored.
* @see response. Caller is responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_get_displayname(response* result,
const char* URL,
runtime_info* info) {
caldav_settings settings;
CALDAV_RESPONSE caldav_response;
g_return_val_if_fail(info != NULL, TRUE);
init_runtime(info);
if (!result) {
result = malloc(sizeof(response *));
memset(result, '\0', sizeof(response *));
}
init_caldav_settings(&settings);
settings.ACTION = GETCALNAME;
if (info->options->debug)
settings.debug = TRUE;
else
settings.debug = FALSE;
if (info->options->trace_ascii)
settings.trace_ascii = 1;
else
settings.trace_ascii = 0;
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
parse_url(&settings, URL);
gboolean res = make_caldav_call(&settings, info);
if (res) {
result->msg = NULL;
if (info->error->code > 0) {
switch (info->error->code) {
case 403: caldav_response = FORBIDDEN; break;
case 409: caldav_response = CONFLICT; break;
case 423: caldav_response = LOCKED; break;
case 501: caldav_response = NOTIMPLEMENTED; break;
default: caldav_response = CONFLICT; break;
}
}
else {
/* fall-back to conflicting state */
caldav_response = CONFLICT;
}
}
else {
result->msg = g_strdup(settings.file);
caldav_response = OK;
}
free_caldav_settings(&settings);
return caldav_response;
}
/**
* Function to test wether a calendar resource is CalDAV enabled or not.
* @param URL Defines CalDAV resource. Receiver is responsible for
* freeing the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @result 0 (zero) means no CalDAV support, otherwise CalDAV support
* detechted.
*/
int caldav_enabled_resource(const char* URL, runtime_info* info) {
CURL* curl;
caldav_settings settings;
struct config_data data;
g_return_val_if_fail(info != NULL, TRUE);
init_runtime(info);
init_caldav_settings(&settings);
parse_url(&settings, URL);
curl = get_curl(&settings);
if (!curl) {
info->error->code = -1;
info->error->str = g_strdup("Could not initialize libcurl");
settings.file = NULL;
return TRUE;
}
if (info->options->trace_ascii)
data.trace_ascii = 1;
else
data.trace_ascii = 0;
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
if (info->options->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
gboolean res = test_caldav_enabled(curl, &settings, info->error);
free_caldav_settings(&settings);
curl_easy_cleanup(curl);
return (res && (info->error->code == 0 || info->error->code == 200)) ? 1 : 0;
}
/**
* Function for getting free/busy information.
* @param result A pointer to struct _response where the result is to stored.
* @see response. Caller is responsible for freeing the memory.
* @param start time_t variable specifying start and end for range. Both
* are included in range.
* @param end time_t variable specifying start and end for range. Both
* are included in range.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_get_freebusy(response *result,
time_t start,
time_t end,
const char* URL,
runtime_info* info) {
caldav_settings settings;
CALDAV_RESPONSE caldav_response;
g_return_val_if_fail(info != NULL, TRUE);
init_runtime(info);
if (!result) {
result = malloc(sizeof(response *));
memset(result, '\0', sizeof(response *));
}
init_caldav_settings(&settings);
settings.ACTION = FREEBUSY;
settings.start = start;
settings.end = end;
if (info->options->debug)
settings.debug = TRUE;
else
settings.debug = FALSE;
if (info->options->trace_ascii)
settings.trace_ascii = 1;
else
settings.trace_ascii = 0;
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
parse_url(&settings, URL);
gboolean res = make_caldav_call(&settings, info);
if (res) {
result->msg = NULL;
if (info->error->code > 0) {
switch (info->error->code) {
case 403: caldav_response = FORBIDDEN; break;
case 409: caldav_response = CONFLICT; break;
case 423: caldav_response = LOCKED; break;
case 501: caldav_response = NOTIMPLEMENTED; break;
default: caldav_response = CONFLICT; break;
}
}
else {
/* fall-back to conflicting state */
caldav_response = CONFLICT;
}
}
else {
result->msg = g_strdup(settings.file);
caldav_response = OK;
}
free_caldav_settings(&settings);
return caldav_response;
}
/**
* Function which supports sending various options inside the library.
* @param curl_options A struct debug_curl. See debug_curl.
*/
void caldav_set_options(debug_curl curl_options) {
}
/**
* @deprecated Function to call in case of errors.
* Caller provides a pointer to a local caldav_error structure.
* Caldav_get_error will initialize pointer if NULL.
* Caller is responsible for freeing returned memory.
* After the first call the internal error buffer is reset.
* @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
* @return An initialized caldav_error pointer to memory where error
* messages can be found from the last call to the library.
*/
caldav_error* caldav_get_error(caldav_error* lib_error) {
if (!lib_error) {
lib_error = g_new0(caldav_error, 1);
}
return lib_error;
}
/**
* Function for freeing memory for a previous initialization of a
* caldav_error. @see caldav_get_error()
* Caller provides a pointer to a local caldav_error structure.
* @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
*/
void caldav_free_error(caldav_error* lib_error) {
if (lib_error->str)
g_free(lib_error->str);
g_free(lib_error);
lib_error = NULL;
}
/**
* Function to call to get a list of supported CalDAV options for a server
* @param URL Defines CalDAV resource. Receiver is responsible for
* freeing the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @result A list of available options or NULL in case of any error.
*/
char** caldav_get_server_options(const char* URL, runtime_info* info) {
CURL* curl;
caldav_settings settings;
response server_options;
gchar** option_list = NULL;
gchar** tmp;
gboolean res = FALSE;
g_return_val_if_fail(info != NULL, NULL);
init_runtime(info);
tmp = option_list = NULL;
init_caldav_settings(&settings);
parse_url(&settings, URL);
curl = get_curl(&settings);
if (!curl) {
info->error->code = -1;
info->error->str = g_strdup("Could not initialize libcurl");
settings.file = NULL;
return NULL;
}
if (info->options->use_locking)
settings.use_locking = 1;
else
settings.use_locking = 0;
res = caldav_getoptions(curl, &settings, &server_options, info->error, FALSE);
if (res) {
if (server_options.msg) {
option_list = g_strsplit(server_options.msg, ", ", 0);
tmp = &(*(option_list));
while (*tmp) {
g_strstrip(*tmp++);
}
}
}
free_caldav_settings(&settings);
curl_easy_cleanup(curl);
return (option_list) ? option_list : NULL;
}
/**
* Function for getting an initialized runtime_info structure
* @return runtime_info. @see runtime_info
*/
runtime_info* caldav_get_runtime_info() {
runtime_info* rt_info;
rt_info = g_new0(runtime_info, 1);
rt_info->error = g_new0(caldav_error, 1);
rt_info->options = g_new0(debug_curl, 1);
return rt_info;
}
/**
* Function for freeing memory for a previous initialization of an info
* structure
* @param info Address to a pointer to a runtime_info structure. @see
* runtime_info
*/
void caldav_free_runtime_info(runtime_info** info) {
runtime_info* ri;
if (*info) {
ri = *info;
if (ri->error) {
if (ri->error->str)
g_free(ri->error->str);
g_free(ri->error);
ri->error = NULL;
}
if (ri->options) {
if (ri->options->custom_cacert)
g_free(ri->options->custom_cacert);
g_free(ri->options);
ri->options = NULL;
}
g_free(ri);
*info = ri = NULL;
}
}
/**
* Function for getting an initialized response structure
* @return response. @see _response
*/
response* caldav_get_response() {
response* r;
r = g_new0(response, 1);
return r;
}
/**
* Function for freeing memory for a previous initialization of an response
* structure
* @param info Address to a pointer to a response structure. @see
* _response
*/
void caldav_free_response(response** resp) {
response* r;
if (*resp) {
r = *resp;
if (r->msg)
g_free(r->msg);
g_free(r);
*resp = r = NULL;
}
}

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/* vim: set textwidth=80 tabstop=4: */
/**
* @file caldav.h
* @brief interface to the caldav library.
* The library conforms to RFC4791. For further information follow this
* link http://www.ietf.org/rfc/rfc4791.txt
*/
/**
* @mainpage
* This document is the documentation for the public interface to libcaldav.
* If you want to study the implementation look for the developers API.
*
* The libray and documentation is Copyright (c) 2008 Michael Rasmussen
* (mir@datanom.net)
*
* License for the source code.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* License for the documentation.
*
* Permission is granted to copy, distribute and/or modify this document
* under the terms of the GNU Free Documentation License, Version 1.2
* or any later version published by the Free Software Foundation;
* with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
* Texts.
*/
#ifndef __CALDAV_H__
#define __CALDAV_H__
#include <time.h>
/* For debug purposes */
/**
* @typedef struct debug_curl
* A struct used to set internal options in the library
*/
typedef struct {
int trace_ascii; /** @var int trace_ascii
* 0 or 1
*/
int debug; /** @var int debug
* 0 or 1
*/
int verify_ssl_certificate;
int use_locking;
char* custom_cacert;
} debug_curl;
/**
* @typedef struct _caldav_error caldav_error
* Pointer to a caldav_error structure
*/
typedef struct _caldav_error caldav_error;
/**
* @struct _caldav_error
* A struct for storing error codes and messages
*/
struct _caldav_error {
long code; /**
* @var long code
* if < 0 internal error > 0 CalDAV protocol error.
*/
char* str; /** @var char* str
* For storing human readable error message
*/
};
/**
* @typedef struct runtime_info
* Pointer to a runtime structure holding debug and error information
*/
typedef struct {
caldav_error* error;
debug_curl* options;
} runtime_info;
/* CalDAV is defined in RFC4791 */
/* Buffer to hold response */
/**
* @typedef struct _response response
* Pointer to a _response structure
*/
typedef struct _response response;
/**
* @struct _response
* A struct used for returning messages from the library to users
*/
struct _response {
char* msg; /** @var char* msg
* String for storing response
*/
};
/**
* @enum CALDAV_ACTION specifies supported CalDAV actions.
* UNKNOWN. An unknown action.
* ADD. Add a CalDAV calendar object.
* DELETE. Delete a CalDAV calendar object.
* MODIFY. Modify a CalDAV calendar object.
* GET. Get one or more CalDAV calendar object(s).
* GETALL. Get all CalDAV calendar objects.
*/
typedef enum {
UNKNOWN,
ADD,
DELETE,
FREEBUSY,
MODIFY,
GET,
GETALL,
GETCALNAME,
ISCALDAV,
OPTIONS
} CALDAV_ACTION;
/**
* @enum CALDAV_RESPONSE specifies CalDAV error states.
* OK (HTTP 200). Request was satisfied.
* FORBIDDEN (HTTP 403). Access not allowed. Dont repeat request.
* CONFLICT (HTTP 409). Conflict between current state of CalDAV collection
* and request. Client must solve the conflict and then resend request.
* LOCKED (HTTP 423). Locking failed.
*/
typedef enum {
OK,
FORBIDDEN,
CONFLICT,
LOCKED,
NOTIMPLEMENTED
} CALDAV_RESPONSE;
#ifndef __CALDAV_USERAGENT
#define __CALDAV_USERAGENT "libcurl-agent/0.1"
#endif
/**
* Function for adding a new event.
* @param object Appointment following ICal format (RFC2445). Receiver is
* responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @param info Pointer to a runtime_info structure. @see runtime_info
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_add_object(const char* object,
const char* URL,
runtime_info* info);
/**
* Function for deleting an event.
* @param object Appointment following ICal format (RFC2445). Receiver is
* responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @param info Pointer to a runtime_info structure. @see runtime_info
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_delete_object(const char* object,
const char* URL,
runtime_info* info);
/**
* Function for modifying an event.
* @param object Appointment following ICal format (RFC2445). Receiver is
* responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @param info Pointer to a runtime_info structure. @see runtime_info
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_modify_object(const char* object,
const char* URL,
runtime_info* info);
/**
* Function for getting a collection of events determined by time range.
* @param result A pointer to struct _response where the result is to stored.
* @see response. Caller is responsible for freeing the memory.
* @param start time_t variable specifying start for range. Included in search.
* @param end time_t variable specifying end for range. Included in search.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @param info Pointer to a runtime_info structure. @see runtime_info
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_get_object(response* result,
time_t start,
time_t end,
const char* URL,
runtime_info* info);
/**
* Function for getting all events from the collection.
* @param result A pointer to struct _response where the result is to stored.
* @see response. Caller is responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @param info Pointer to a runtime_info structure. @see runtime_info
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_getall_object(response* result,
const char* URL,
runtime_info* info);
/**
* Function for getting the stored display name for the collection.
* @param result A pointer to struct _response where the result is to stored.
* @see response. Caller is responsible for freeing the memory.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @param info Pointer to a runtime_info structure. @see runtime_info
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_get_displayname(response* result,
const char* URL,
runtime_info* info);
/**
* Function to test wether a calendar resource is CalDAV enabled or not.
* @param URL Defines CalDAV resource. Receiver is responsible for
* freeing the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @param info Pointer to a runtime_info structure. @see runtime_info
* @result 0 (zero) means no CalDAV support, otherwise CalDAV support
* detechted.
*/
int caldav_enabled_resource(const char* URL, runtime_info* info);
/**
* Function for getting free/busy information.
* @param result A pointer to struct _response where the result is to stored.
* @see response. Caller is responsible for freeing the memory.
* @param start time_t variable specifying start and end for range. Both
* are included in range.
* @param end time_t variable specifying start and end for range. Both
* are included in range.
* @param URL Defines CalDAV resource. Receiver is responsible for freeing
* the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @return Ok, FORBIDDEN, or CONFLICT. @see CALDAV_RESPONSE
*/
CALDAV_RESPONSE caldav_get_freebusy(response *result,
time_t start,
time_t end,
const char* URL,
runtime_info* info);
/**
* @deprecated Always returns an initialized empty caldav_error
* Function to call in case of errors.
* Caller provides a pointer to a local caldav_error structure.
* Caldav_get_error will initialize pointer if NULL.
* Caller is responsible for freeing returned memory.
* After the first call the internal error buffer is reset.
* @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
* @return An initialized caldav_error pointer to memory where error
* messages can be found from the last call to the library.
*/
caldav_error* caldav_get_error(caldav_error* lib_error);
/**
* Function for freeing memory for a previous initialization of a
* caldav_error. @see caldav_get_error()
* Caller provides a pointer to a local caldav_error structure.
* @param lib_error A pointer to a struct _caldav_error. @see _caldav_error
*/
void caldav_free_error(caldav_error* lib_error);
/* Setting various options in library */
/**
* @deprecated Does nothing
* Function which supports sending various options inside the library.
* @param curl_options A struct debug_curl. See debug_curl.
*/
void caldav_set_options(debug_curl curl_options);
/**
* Function to call to get a list of supported CalDAV options for a server
* @param URL Defines CalDAV resource. Receiver is responsible for
* freeing the memory. [http://][username[:password]@]host[:port]/url-path.
* See (RFC1738).
* @param info Pointer to a runtime_info structure. @see runtime_info
* @result A list of available options or NULL in case of any error.
*/
char** caldav_get_server_options(const char* URL, runtime_info* info);
/**
* Function for getting an initialized runtime_info structure
* @return runtime_info. @see runtime_info
*/
runtime_info* caldav_get_runtime_info();
/**
* Function for freeing memory for a previous initialization of an info
* structure
* @param info Address to a pointer to a runtime_info structure. @see
* runtime_info
*/
void caldav_free_runtime_info(runtime_info** info);
/**
* Function for getting an initialized response structure
* @return response. @see _response
*/
response* caldav_get_response();
/**
* Function for freeing memory for a previous initialization of an response
* structure
* @param info Address to a pointer to a response structure. @see
* _response
*/
void caldav_free_response(response** info);
#endif

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "delete-caldav-object.h"
#include "lock-caldav-object.h"
#include <glib.h>
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* A static literal string containing the first part of the calendar query.
* The actual UID to use for the query is added at runtime.
*/
static char* search_head =
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
"<C:calendar-query xmlns:D=\"DAV:\""
" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
" <D:prop>"
" <D:getetag/>"
" <C:calendar-data/>"
" </D:prop>"
" <C:filter>"
" <C:comp-filter name=\"VCALENDAR\">"
" <C:comp-filter name=\"VEVENT\">"
" <C:prop-filter name=\"UID\">";
/**
* A static literal string containing the last part of the calendar query
*/
static char* search_tail =
"</C:prop-filter>"
" </C:comp-filter>"
" </C:comp-filter>"
" </C:filter>"
"</C:calendar-query>";
/**
* Function for deleting an event.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_delete(caldav_settings* settings, caldav_error* error) {
CURL* curl;
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE];
struct config_data data;
struct MemoryStruct chunk;
struct MemoryStruct headers;
struct curl_slist *http_header = NULL;
gchar* search;
gchar* uid;
gboolean LOCKSUPPORT = FALSE;
gchar* lock_token = NULL;
gboolean result = FALSE;
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
curl = get_curl(settings);
if (!curl) {
error->code = -1;
error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return TRUE;
}
http_header = curl_slist_append(http_header,
"Content-Type: application/xml; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "Depth: infinity");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(http_header, "Transfer-Encoding:");
data.trace_ascii = settings->trace_ascii;
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'headers' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
if (settings->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
gchar* file = g_strdup(settings->file);
if ((uid = get_response_header("uid", file, FALSE)) == NULL) {
g_free(file);
error->code = 1;
error->str = g_strdup("Error: Missing required UID for object");
return TRUE;
}
g_free(file);
/*
* ICalendar server does not support collation
* <C:text-match collation=\"i;ascii-casemap\">%s</C:text-match>
*/
search = g_strdup_printf(
"%s\r\n<C:text-match>%s</C:text-match>\r\n%s",
search_head, uid, search_tail);
g_free(uid);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, search);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(search));
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
g_free(search);
curl_slist_free_all(http_header);
http_header = NULL;
if (res != 0) {
error->code = -1;
error->str = g_strdup_printf("%s", error_buf);
g_free(settings->file);
settings->file = NULL;
result = TRUE;
}
else {
long code;
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 207) {
error->code = code;
error->str = g_strdup(chunk.memory);
result = TRUE;
}
else {
/* enable uploading */
gchar* url = NULL;
gchar* etag = NULL;
url = get_url(chunk.memory);
if (url) {
etag = get_etag(chunk.memory);
if (etag) {
gchar* host = get_host(settings->url);
if (host) {
file = g_strdup(url);
g_free(url);
url = g_strdup_printf("%s%s", host, file);
g_free(file);
g_free(host);
}
else {
g_free(etag);
g_free(url);
url = NULL;
}
}
else {
g_free(url);
url = NULL;
}
}
if (url) {
int lock = 0;
caldav_error lock_error;
file = g_strdup(etag);
g_free(etag);
etag = g_strdup_printf("If-Match: %s", file);
g_free(file);
http_header = curl_slist_append(http_header, etag);
g_free(etag);
http_header = curl_slist_append(http_header,
"Content-Type: text/calendar; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(
http_header, "Transfer-Encoding:");
if (settings->use_locking)
LOCKSUPPORT = caldav_lock_support(settings, &lock_error);
else
LOCKSUPPORT = FALSE;
if (LOCKSUPPORT) {
lock_token = caldav_lock_object(url, settings, &lock_error);
if (lock_token) {
http_header = curl_slist_append(
http_header, g_strdup_printf(
"If: (%s)", lock_token));
}
/*
* If error code is 423 (Resource is LOCKED) bail out
*/
else if (lock_error.code == 423) {
lock = -1;
}
/*
* If error code is 501 (Not implemented) we continue
* hoping for the best.
*/
else if (lock_error.code == 501) {
lock_token = g_strdup("");
}
else {
lock = -1;
}
}
if (! LOCKSUPPORT || (LOCKSUPPORT && lock_token && lock_error.code != 423)) {
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
curl_easy_setopt(curl, CURLOPT_URL, rebuild_url(settings, url));
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, NULL);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, 0);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
if (LOCKSUPPORT && lock_token) {
caldav_unlock_object(
lock_token, url, settings, &lock_error);
}
}
g_free(url);
g_free(lock_token);
if (res != 0 || lock < 0) {
/* Is this a lock_error don't change error*/
if (lock == 0 || lock_error.code == 423) {
error->code = code;
error->str = g_strdup(chunk.memory);
}
else {
error->code = lock_error.code;
error->str = g_strdup(lock_error.str);
}
result = TRUE;
g_free(settings->file);
settings->file = NULL;
}
else {
long code;
res = curl_easy_getinfo(
curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 204) {
error->code = code;
error->str = g_strdup(chunk.memory);
result = TRUE;
}
}
curl_slist_free_all(http_header);
}
else {
error->code = code;
if (chunk.memory)
error->str = g_strdup(chunk.memory);
else
error->str = g_strdup("No object found");
result = TRUE;
}
}
}
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_easy_cleanup(curl);
return result;
}

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __DELETE_CALDAV_OBJECT_H__
#define __DELETE_CALDAV_OBJECT_H__
#include "caldav-utils.h"
#include "caldav.h"
/**
* Function for deleting an event.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_delete(caldav_settings* settings, caldav_error* error);
#endif

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/* vim: set textwidth=80 tabstop=4 smarttab: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "get-caldav-report.h"
#include <glib.h>
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* A static literal string containing the calendar query for fetching
* all events from collection.
*/
static const char* getall_request =
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
"<C:calendar-query xmlns:D=\"DAV:\""
" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
" <D:prop>"
" <D:getetag/>"
" <C:calendar-data/>"
" </D:prop>"
" <C:filter>"
" <C:comp-filter name=\"VCALENDAR\">"
" <C:comp-filter name=\"VEVENT\"/>"
" </C:comp-filter>"
" </C:filter>"
"</C:calendar-query>\r\n";
/**
* A static literal string containing the first part of the calendar query.
* The actual VEVENT to search for is added at runtime.
*/
static const char* getrange_request_head =
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
/*"<C:calendar-query xmlns:D=\"DAV:\""
" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
" <D:prop>"*/
"<C:calendar-query xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
" <D:prop xmlns:D=\"DAV:\">"
/*" <D:getetag/>"*/
" <C:calendar-data/>"
" </D:prop>"
" <C:filter>"
" <C:comp-filter name=\"VCALENDAR\">"
" <C:comp-filter name=\"VEVENT\">";
/**
* A static literal string containing the last part of the calendar query
*/
static const char* getrange_request_foot =
" </C:comp-filter>"
" </C:comp-filter>"
" </C:filter>"
"</C:calendar-query>\r\n";
/**
* Function for getting all events from collection.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_getall(caldav_settings* settings, caldav_error* error) {
CURL* curl;
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE];
struct config_data data;
struct MemoryStruct chunk;
struct MemoryStruct headers;
struct curl_slist *http_header = NULL;
gboolean result = FALSE;
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
curl = get_curl(settings);
if (!curl) {
error->code = -1;
error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return TRUE;
}
http_header = curl_slist_append(http_header,
"Content-Type: application/xml; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "Depth: 1");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(http_header, "Transfer-Encoding:");
data.trace_ascii = settings->trace_ascii;
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'headers' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, getall_request);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(getall_request));
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
if (settings->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
if (res != 0) {
error->code = -1;
error->str = g_strdup_printf("%s", error_buf);
g_free(settings->file);
settings->file = NULL;
result = TRUE;
}
else {
long code;
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 207) {
error->code = code;
error->str = g_strdup(headers.memory);
result = TRUE;
}
else {
gchar* report;
report = parse_caldav_report(
chunk.memory, "calendar-data", "VEVENT");
settings->file = g_strdup(report);
g_free(report);
}
}
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_slist_free_all(http_header);
curl_easy_cleanup(curl);
return result;
}
/**
* Function for getting all events within a time range from collection.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_getrange(caldav_settings* settings, caldav_error* error) {
CURL* curl;
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE + 1];
struct config_data data;
struct MemoryStruct chunk;
struct MemoryStruct headers;
struct curl_slist *http_header = NULL;
gboolean result = FALSE;
gchar* request = NULL;
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
curl = get_curl(settings);
if (!curl) {
error->code = -1;
error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return TRUE;
}
http_header = curl_slist_append(http_header,
"Content-Type: application/xml; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "Depth: 1");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(http_header, "Transfer-Encoding:");
data.trace_ascii = settings->trace_ascii;
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'headers' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
if (settings->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
request = g_strdup_printf(
"%s\r\n<C:time-range start=\"%s\"\r\n end=\"%s\"/>\r\n%s",
getrange_request_head, get_caldav_datetime(&settings->start),
get_caldav_datetime(&settings->end), getrange_request_foot);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, request);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(request));
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
if (res != 0) {
error->code = -1;
error->str = g_strdup_printf("%s", error_buf);
g_free(settings->file);
settings->file = NULL;
result = TRUE;
}
else {
gchar* report;
report = parse_caldav_report(chunk.memory, "calendar-data", "VEVENT");
settings->file = g_strdup(report);
g_free(report);
}
g_free(request);
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_slist_free_all(http_header);
curl_easy_cleanup(curl);
return result;
}

43
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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __GET_CALDAV_REPORT_H__
#define __GET_CALDAV_REPORT_H__
#include "caldav-utils.h"
#include "caldav.h"
#include <glib.h>
/**
* Function for getting all events from collection.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_getall(caldav_settings* settings, caldav_error* error);
/**
* Function for getting all events within a time range from collection.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_getrange(caldav_settings* settings, caldav_error* error);
#endif

138
src/.svn/text-base/get-display-name.c.svn-base
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/* vim: set textwidth=80 tabstop=4 smarttab: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "get-caldav-report.h"
#include <glib.h>
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* A static literal string containing the calendar query for fetching
* the stored display name for the collection.
*/
static const char* getname_request =
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
"<D:propfind xmlns:D=\"DAV:\""
" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
" <D:prop>"
" <D:displayname/>"
" </D:prop>"
"</D:propfind>\r\n";
/**
* Function for getting the display name from collection.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_getname(caldav_settings* settings, caldav_error* error) {
CURL* curl;
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE];
struct config_data data;
struct MemoryStruct chunk;
struct MemoryStruct headers;
struct curl_slist *http_header = NULL;
gboolean result = FALSE;
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
curl = get_curl(settings);
if (!curl) {
error->code = -1;
error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return TRUE;
}
http_header = curl_slist_append(http_header,
"Content-Type: application/xml; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "Depth: 0");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(http_header, "Transfer-Encoding:");
data.trace_ascii = settings->trace_ascii;
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'headers' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, getname_request);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(getname_request));
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
if (settings->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PROPFIND");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
if (res != 0) {
error->code = -1;
error->str = g_strdup_printf("%s", error_buf);
g_free(settings->file);
settings->file = NULL;
result = TRUE;
}
else {
long code;
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 207) {
error->code = code;
error->str = g_strdup(headers.memory);
result = TRUE;
}
else {
gchar* displayname;
displayname = get_tag("displayname", chunk.memory);
/* Maybe namespace prefixed */
if (!displayname) {
displayname = get_tag("D:displayname", chunk.memory);
}
settings->file = (displayname) ?
g_strdup(displayname) : g_strdup("");
g_free(displayname);
}
}
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_slist_free_all(http_header);
curl_easy_cleanup(curl);
return result;
}

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __GET_DISPLAY_NAME_H__
#define __GET_DISPLAY_NAME_H__
#include "caldav-utils.h"
/**
* Function for getting the display name from collection.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_getname(caldav_settings* settings, caldav_error* error);
#endif

292
src/.svn/text-base/lock-caldav-object.c.svn-base
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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "lock-caldav-object.h"
#include "options-caldav-server.h"
#include <glib.h>
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* A static literal string containing the lock query.
*/
static char* lock_query =
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
"<D:lockinfo xmlns:D=\"DAV:\">"
" <D:lockscope><D:exclusive/></D:lockscope>"
" <D:locktype><D:write/></D:locktype>"
"</D:lockinfo>";
/**
* Function which requests a lock on a calendar resource
* @param URI The resource to request lock on.
* @param settings @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return The Lock-Token or NULL in case of error
*/
gchar* caldav_lock_object(
gchar* URI, caldav_settings* settings, caldav_error* error) {
CURL* curl;
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE];
struct config_data data;
struct MemoryStruct chunk;
struct MemoryStruct headers;
struct curl_slist *http_header = NULL;
gchar* lock_token = NULL;
gchar* url;
if (! caldav_lock_support(settings, error))
return lock_token;
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
curl = get_curl(settings);
if (!curl) {
error->code = -1;
error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return lock_token;
}
http_header = curl_slist_append(http_header,
"Content-Type: application/xml; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "Timeout: Second-300");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(http_header, "Transfer-Encoding:");
data.trace_ascii = settings->trace_ascii;
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'headers' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
if (settings->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
if (settings->usehttps) {
url = g_strdup_printf("https://%s", URI);
} else {
url = g_strdup_printf("http://%s", URI);
}
curl_easy_setopt(curl, CURLOPT_URL, url);
g_free(url);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, lock_query);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(lock_query));
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "LOCK");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
curl_slist_free_all(http_header);
if (res != 0) {
error->code = -1;
error->str = g_strdup_printf("%s", error_buf);
g_free(settings->file);
settings->file = NULL;
}
else {
long code;
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 200) {
gchar* status = get_tag("status", chunk.memory);
if (status && strstr(status, "423") != NULL) {
error->code = 423;
error->str = g_strdup(status);
}
else {
error->code = code;
error->str = g_strdup(chunk.memory);
}
g_free(status);
}
else {
lock_token = get_response_header(
"Lock-Token", headers.memory, FALSE);
}
}
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_easy_cleanup(curl);
return lock_token;
}
/**
* Function which requests to have a lock removed from a calendar resource
* @param lock_token A previous acquired Lock-Token
* @param URI The resource to request unlock on.
* @param settings @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return False in case the lock could not be removed. True otherwise.
*/
gboolean caldav_unlock_object(gchar* lock_token, gchar* URI,
caldav_settings* settings, caldav_error* error) {
CURL* curl;
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE];
struct config_data data;
struct MemoryStruct chunk;
struct MemoryStruct headers;
struct curl_slist *http_header = NULL;
gboolean result = FALSE;
gchar* url;
if (! caldav_lock_support(settings, error))
return result;
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
curl = get_curl(settings);
if (!curl) {
error->code = -1;
error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return TRUE;
}
http_header = curl_slist_append(http_header,
g_strdup_printf("Lock-Token: %s", lock_token));
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(http_header, "Transfer-Encoding:");
data.trace_ascii = settings->trace_ascii;
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'headers' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
if (settings->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
if (settings->usehttps) {
url = g_strdup_printf("https://%s", URI);
} else {
url = g_strdup_printf("http://%s", URI);
}
curl_easy_setopt(curl, CURLOPT_URL, url);
g_free(url);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "UNLOCK");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
curl_slist_free_all(http_header);
if (res != 0) {
error->code = -1;
error->str = g_strdup_printf("%s", error_buf);
g_free(settings->file);
settings->file = NULL;
}
else {
long code;
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 204) {
error->code = code;
error->str = g_strdup(chunk.memory);
}
else {
result = TRUE;
}
}
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_easy_cleanup(curl);
return result;
}
/**
* Function to test whether the server supports locking or not. Searching
* for PROP LOCK. If LOCK is present then according to RFC4791 PROP UNLOCK
* must also be present.
* @param settings @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return True if locking is supported by the server. False otherwise
*/
gboolean caldav_lock_support(caldav_settings* settings, caldav_error* error) {
gboolean found = FALSE;
gchar* url = NULL;
gchar* mystr = NULL;
runtime_info* info;
info = caldav_get_runtime_info();
info->options->verify_ssl_certificate = settings->verify_ssl_certificate;
info->options->custom_cacert = g_strdup(settings->custom_cacert);
if (settings->usehttps) {
mystr = g_strdup("https://");
} else {
mystr = g_strdup("http://");
}
if (settings->username && settings->password) {
url = g_strdup_printf("%s%s:%s@%s",
mystr, settings->username, settings->password, settings->url);
}
else if (settings->username) {
url = g_strdup_printf("%s%s@%s",
mystr, settings->username, settings->url);
}
else {
url = g_strdup_printf("%s%s", mystr, settings->url);
}
gchar** options = caldav_get_server_options(url, info);
g_free(url);
gchar** tmp = options;
caldav_free_runtime_info(&info);
while (*options) {
if (strcmp(*options++, "LOCK") == 0) {
found = TRUE;
break;
}
}
g_strfreev(tmp);
g_free(mystr);
return found;
}

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __LOCK_CALDAV_OBJECT_H__
#define __LOCK_CALDAV_OBJECT_H__
#include "caldav-utils.h"
#include "caldav.h"
/**
* Function which requests a lock on a calendar resource
* @param URI The resource to request lock on.
* @param settings @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return The Lock-Token or NULL in case of error
*/
gchar* caldav_lock_object(
gchar* URI, caldav_settings* settings, caldav_error* error);
/**
* Function which requests to have a lock removed from a calendar resource
* @param lock_token A previous acquired Lock-Token
* @param URI The resource to request unlock on.
* @param settings @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return False in case the lock could not be removed. True otherwise.
*/
gboolean caldav_unlock_object(gchar* lock_token, gchar* URI,
caldav_settings* settings, caldav_error* error);
/**
* Function to test whether the server supports locking or not
* @param settings @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return True if locking is supported by the server. False otherwise
*/
gboolean caldav_lock_support(caldav_settings* settings, caldav_error* error);
#endif

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src/.svn/text-base/md5.c.svn-base
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/** md5.c - MD5 Message-Digest Algorithm
* Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc.
*
* according to the definition of MD5 in RFC 1321 from April 1992.
* NOTE: This is *not* the same file as the one from glibc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 3, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
* heavily modified for GnuPG by <werner.koch@guug.de>.
* modified again for Sylpheed by <wk@gnupg.org> 2001-02-11.
*/
/* Test values:
* "" D4 1D 8C D9 8F 00 B2 04 E9 80 09 98 EC F8 42 7E
* "a" 0C C1 75 B9 C0 F1 B6 A8 31 C3 99 E2 69 77 26 61
* "abc 90 01 50 98 3C D2 4F B0 D6 96 3F 7D 28 E1 7F 72
* "message digest" F9 6B 69 7D 7C B7 93 8D 52 5A 2F 31 AA F1 61 D0
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "md5.h"
/****************
* Rotate a 32 bit integer by n bytes
*/
#if defined(__GNUC__) && defined(__i386__)
static inline u32
rol( u32 x, int n)
{
__asm__("roll %%cl,%0"
:"=r" (x)
:"0" (x),"c" (n));
return x;
}
#else
#define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
#endif
static void
md5_init(MD5_CONTEXT *ctx)
{
ctx->A = 0x67452301;
ctx->B = 0xefcdab89;
ctx->C = 0x98badcfe;
ctx->D = 0x10325476;
ctx->nblocks = 0;
ctx->count = 0;
ctx->finalized = 0;
}
/* These are the four functions used in the four steps of the MD5 algorithm
and defined in the RFC 1321. The first function is a little bit optimized
(as found in Colin Plumbs public domain implementation). */
/* #define FF(b, c, d) ((b & c) | (~b & d)) */
#define FF(b, c, d) (d ^ (b & (c ^ d)))
#define FG(b, c, d) FF (d, b, c)
#define FH(b, c, d) (b ^ c ^ d)
#define FI(b, c, d) (c ^ (b | ~d))
/****************
* transform n*64 bytes
*/
static void
transform(MD5_CONTEXT *ctx, const unsigned char *data)
{
u32 correct_words[16];
u32 A = ctx->A;
u32 B = ctx->B;
u32 C = ctx->C;
u32 D = ctx->D;
u32 *cwp = correct_words;
#ifdef BIG_ENDIAN_HOST
{
int i;
unsigned char *p2;
const unsigned char *p1;
for (i = 0, p1 = data, p2 = (unsigned char*)correct_words;
i < 16; i++, p2 += 4) {
p2[3] = *p1++;
p2[2] = *p1++;
p2[1] = *p1++;
p2[0] = *p1++;
}
}
#else
memcpy(correct_words, data, 64);
#endif
#define OP(a, b, c, d, s, T) \
do { \
a += FF (b, c, d) + (*cwp++) + T; \
a = rol(a, s); \
a += b; \
} while (0)
/* Before we start, one word about the strange constants.
They are defined in RFC 1321 as
T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
*/
/* Round 1. */
OP (A, B, C, D, 7, 0xd76aa478);
OP (D, A, B, C, 12, 0xe8c7b756);
OP (C, D, A, B, 17, 0x242070db);
OP (B, C, D, A, 22, 0xc1bdceee);
OP (A, B, C, D, 7, 0xf57c0faf);
OP (D, A, B, C, 12, 0x4787c62a);
OP (C, D, A, B, 17, 0xa8304613);
OP (B, C, D, A, 22, 0xfd469501);
OP (A, B, C, D, 7, 0x698098d8);
OP (D, A, B, C, 12, 0x8b44f7af);
OP (C, D, A, B, 17, 0xffff5bb1);
OP (B, C, D, A, 22, 0x895cd7be);
OP (A, B, C, D, 7, 0x6b901122);
OP (D, A, B, C, 12, 0xfd987193);
OP (C, D, A, B, 17, 0xa679438e);
OP (B, C, D, A, 22, 0x49b40821);
#undef OP
#define OP(f, a, b, c, d, k, s, T) \
do { \
a += f (b, c, d) + correct_words[k] + T; \
a = rol(a, s); \
a += b; \
} while (0)
/* Round 2. */
OP (FG, A, B, C, D, 1, 5, 0xf61e2562);
OP (FG, D, A, B, C, 6, 9, 0xc040b340);
OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
OP (FG, A, B, C, D, 5, 5, 0xd62f105d);
OP (FG, D, A, B, C, 10, 9, 0x02441453);
OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
OP (FG, A, B, C, D, 9, 5, 0x21e1cde6);
OP (FG, D, A, B, C, 14, 9, 0xc33707d6);
OP (FG, C, D, A, B, 3, 14, 0xf4d50d87);
OP (FG, B, C, D, A, 8, 20, 0x455a14ed);
OP (FG, A, B, C, D, 13, 5, 0xa9e3e905);
OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8);
OP (FG, C, D, A, B, 7, 14, 0x676f02d9);
OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
/* Round 3. */
OP (FH, A, B, C, D, 5, 4, 0xfffa3942);
OP (FH, D, A, B, C, 8, 11, 0x8771f681);
OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
OP (FH, A, B, C, D, 1, 4, 0xa4beea44);
OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9);
OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60);
OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
OP (FH, A, B, C, D, 13, 4, 0x289b7ec6);
OP (FH, D, A, B, C, 0, 11, 0xeaa127fa);
OP (FH, C, D, A, B, 3, 16, 0xd4ef3085);
OP (FH, B, C, D, A, 6, 23, 0x04881d05);
OP (FH, A, B, C, D, 9, 4, 0xd9d4d039);
OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
OP (FH, B, C, D, A, 2, 23, 0xc4ac5665);
/* Round 4. */
OP (FI, A, B, C, D, 0, 6, 0xf4292244);
OP (FI, D, A, B, C, 7, 10, 0x432aff97);
OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
OP (FI, B, C, D, A, 5, 21, 0xfc93a039);
OP (FI, A, B, C, D, 12, 6, 0x655b59c3);
OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92);
OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
OP (FI, B, C, D, A, 1, 21, 0x85845dd1);
OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f);
OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
OP (FI, C, D, A, B, 6, 15, 0xa3014314);
OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
OP (FI, A, B, C, D, 4, 6, 0xf7537e82);
OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
OP (FI, B, C, D, A, 9, 21, 0xeb86d391);
/* Put checksum in context given as argument. */
ctx->A += A;
ctx->B += B;
ctx->C += C;
ctx->D += D;
}
/* The routine updates the message-digest context to
* account for the presence of each of the characters inBuf[0..inLen-1]
* in the message whose digest is being computed.
*/
static void
md5_update(MD5_CONTEXT *hd, const unsigned char *inbuf, size_t inlen)
{
if (hd->count == 64) { /* flush the buffer */
transform( hd, hd->buf );
hd->count = 0;
hd->nblocks++;
}
if (!inbuf)
return;
if (hd->count) {
for (; inlen && hd->count < 64; inlen--)
hd->buf[hd->count++] = *inbuf++;
md5_update(hd, NULL, 0);
if (!inlen)
return;
}
while (inlen >= 64) {
transform(hd, inbuf);
hd->count = 0;
hd->nblocks++;
inlen -= 64;
inbuf += 64;
}
for (; inlen && hd->count < 64; inlen--)
hd->buf[hd->count++] = *inbuf++;
}
/* The routine final terminates the message-digest computation and
* ends with the desired message digest in mdContext->digest[0...15].
* The handle is prepared for a new MD5 cycle.
* Returns 16 bytes representing the digest.
*/
static void
do_final(MD5_CONTEXT *hd)
{
u32 t, msb, lsb;
unsigned char *p;
md5_update(hd, NULL, 0); /* flush */
msb = 0;
t = hd->nblocks;
if ((lsb = t << 6) < t) /* multiply by 64 to make a byte count */
msb++;
msb += t >> 26;
t = lsb;
if ((lsb = t + hd->count) < t) /* add the count */
msb++;
t = lsb;
if ((lsb = t << 3) < t) /* multiply by 8 to make a bit count */
msb++;
msb += t >> 29;
if (hd->count < 56) { /* enough room */
hd->buf[hd->count++] = 0x80; /* pad */
while(hd->count < 56)
hd->buf[hd->count++] = 0; /* pad */
} else { /* need one extra block */
hd->buf[hd->count++] = 0x80; /* pad character */
while (hd->count < 64)
hd->buf[hd->count++] = 0;
md5_update(hd, NULL, 0); /* flush */
memset(hd->buf, 0, 56); /* fill next block with zeroes */
}
/* append the 64 bit count */
hd->buf[56] = lsb ;
hd->buf[57] = lsb >> 8;
hd->buf[58] = lsb >> 16;
hd->buf[59] = lsb >> 24;
hd->buf[60] = msb ;
hd->buf[61] = msb >> 8;
hd->buf[62] = msb >> 16;
hd->buf[63] = msb >> 24;
transform(hd, hd->buf);
p = hd->buf;
#ifdef BIG_ENDIAN_HOST
#define X(a) do { *p++ = hd->a ; *p++ = hd->a >> 8; \
*p++ = hd->a >> 16; *p++ = hd->a >> 24; } while(0)
#else /* little endian */
/*#define X(a) do { *(u32*)p = hd->##a ; p += 4; } while(0)*/
/* Unixware's cpp doesn't like the above construct so we do it his way:
* (reported by Allan Clark) */
#define X(a) do { *(u32*)p = (*hd).a ; p += 4; } while(0)
#endif
X(A);
X(B);
X(C);
X(D);
#undef X
hd->finalized = 1;
}
static void
md5_final(unsigned char *digest, MD5_CONTEXT *ctx)
{
if (!ctx->finalized)
do_final(ctx);
memcpy(digest, ctx->buf, 16);
}
/*
* Creates a MD5 digest in hex fomrat (lowercase letters) from the
* string S. hextdigest but be buffer of at lease 33 bytes!
*/
static void
md5_hex_digest(char *hexdigest, const unsigned char *s)
{
int i;
MD5_CONTEXT context;
unsigned char digest[16];
md5_init(&context);
md5_update(&context, s, strlen((gchar *) s));
md5_final(digest, &context);
for (i = 0; i < 16; i++)
sprintf(hexdigest + 2 * i, "%02x", digest[i]);
}
/*
** Function: md5_hmac
** taken from the file rfc2104.txt
** written by Martin Schaaf <mascha@ma-scha.de>
*/
static void
md5_hmac(unsigned char *digest,
const unsigned char* text, int text_len,
const unsigned char* key, int key_len)
{
MD5_CONTEXT context;
unsigned char k_ipad[64]; /* inner padding -
* key XORd with ipad
*/
unsigned char k_opad[64]; /* outer padding -
* key XORd with opad
*/
/* unsigned char tk[16]; */
int i;
/* start out by storing key in pads */
memset(k_ipad, 0, sizeof k_ipad);
memset(k_opad, 0, sizeof k_opad);
if (key_len > 64) {
/* if key is longer than 64 bytes reset it to key=MD5(key) */
MD5_CONTEXT tctx;
md5_init(&tctx);
md5_update(&tctx, key, key_len);
md5_final(k_ipad, &tctx);
md5_final(k_opad, &tctx);
} else {
memcpy(k_ipad, key, key_len);
memcpy(k_opad, key, key_len);
}
/*
* the HMAC_MD5 transform looks like:
*
* MD5(K XOR opad, MD5(K XOR ipad, text))
*
* where K is an n byte key
* ipad is the byte 0x36 repeated 64 times
* opad is the byte 0x5c repeated 64 times
* and text is the data being protected
*/
/* XOR key with ipad and opad values */
for (i = 0; i < 64; i++) {
k_ipad[i] ^= 0x36;
k_opad[i] ^= 0x5c;
}
/*
* perform inner MD5
*/
md5_init(&context); /* init context for 1st
* pass */
md5_update(&context, k_ipad, 64); /* start with inner pad */
md5_update(&context, text, text_len); /* then text of datagram */
md5_final(digest, &context); /* finish up 1st pass */
/*
* perform outer MD5
*/
md5_init(&context); /* init context for 2nd
* pass */
md5_update(&context, k_opad, 64); /* start with outer pad */
md5_update(&context, digest, 16); /* then results of 1st
* hash */
md5_final(digest, &context); /* finish up 2nd pass */
}
static void
md5_hex_hmac(char *hexdigest,
const unsigned char* text, int text_len,
const unsigned char* key, int key_len)
{
unsigned char digest[16];
int i;
md5_hmac(digest, text, text_len, key, key_len);
for (i = 0; i < 16; i++)
sprintf(hexdigest + 2 * i, "%02x", digest[i]);
}
void caldav_md5_hex_digest(char *hexdigest, const unsigned char *s) {
md5_hex_digest(hexdigest, s);
}
void caldav_md5_hex_hmac(char *hexdigest,
const unsigned char* text, int text_len,
const unsigned char* key, int key_len) {
md5_hex_hmac(hexdigest, text, text_len, key, key_len);
}

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/**
* md5.h - MD5 Message-Digest Algorithm
* Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc.
*
* according to the definition of MD5 in RFC 1321 from April 1992.
* NOTE: This is *not* the same file as the one from glibc
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 3, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _MD5_HDR_
#define _MD5_HDR_
#include <glib.h>
/**
* @typedef u32
* Kept this typedef for compatibility reasons
*/
#ifndef HAVE_U32_TYPEDEF
#undef u32
typedef guint32 u32;
#define HAVE_U32_TYPEDEF
#endif
typedef struct { /* Hmm, should be private */
u32 A,B,C,D;
u32 nblocks;
unsigned char buf[64];
int count;
int finalized;
} MD5_CONTEXT;
void caldav_md5_hex_digest(char *hexdigest, const unsigned char *s);
void caldav_md5_hex_hmac(char *hexdigest,
const unsigned char* text, int text_len,
const unsigned char* key, int key_len);
#endif /* _MD5_HDR_ */

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "modify-caldav-object.h"
#include "lock-caldav-object.h"
#include <glib.h>
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* A static literal string containing the first part of the calendar query.
* The actual UID to use for the query is added at runtime.
*/
static char* search_head =
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>"
"<C:calendar-query xmlns:D=\"DAV:\""
" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">"
" <D:prop>"
" <D:getetag/>"
" <C:calendar-data/>"
" </D:prop>"
" <C:filter>"
" <C:comp-filter name=\"VCALENDAR\">"
" <C:comp-filter name=\"VEVENT\">"
" <C:prop-filter name=\"UID\">";
/**
* A static literal string containing the last part of the calendar query
*/
static char* search_tail =
"</C:prop-filter>"
" </C:comp-filter>"
" </C:comp-filter>"
" </C:filter>"
"</C:calendar-query>";
/**
* Function for modifying an event.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_modify(caldav_settings* settings, caldav_error* error) {
CURL* curl;
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE];
struct config_data data;
struct MemoryStruct chunk;
struct MemoryStruct headers;
struct curl_slist *http_header = NULL;
gchar* search;
gchar* uid;
gboolean result = FALSE;
gboolean LOCKSUPPORT = FALSE;
gchar* lock_token = NULL;
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
curl = get_curl(settings);
if (!curl) {
error->code = -1;
error->str = g_strdup("Could not initialize libcurl");
g_free(settings->file);
settings->file = NULL;
return TRUE;
}
http_header = curl_slist_append(http_header,
"Content-Type: application/xml; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "Depth: 1");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(http_header, "Transfer-Encoding:");
data.trace_ascii = settings->trace_ascii;
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'headers' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
if (settings->debug) {
curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
curl_easy_setopt(curl, CURLOPT_DEBUGDATA, &data);
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
}
gchar* file = g_strdup(settings->file);
if ((uid = get_response_header("uid", file, FALSE)) == NULL) {
g_free(file);
error->code = 1;
error->str = g_strdup("Error: Missing required UID for object");
return TRUE;
}
g_free(file);
/*
* collation is not supported by ICalendar.
* <C:text-match collation=\"i;ascii-casemap\">%s</C:text-match>
*/
search = g_strdup_printf(
"%s\r\n<C:text-match>%s</C:text-match>\r\n%s",
search_head, uid, search_tail);
g_free(uid);
/* enable uploading */
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, search);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE, strlen(search));
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "REPORT");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
curl_slist_free_all(http_header);
http_header = NULL;
g_free(search);
if (res != 0) {
error->code = -1;
error->str = g_strdup_printf("%s", error_buf);
g_free(settings->file);
settings->file = NULL;
result = TRUE;
}
else {
long code;
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 207) {
error->code = code;
error->str = g_strdup(chunk.memory);
result = TRUE;
}
else {
/* enable uploading */
gchar* url = NULL;
gchar* etag = NULL;
url = get_url(chunk.memory);
if (url) {
etag = get_etag(chunk.memory);
if (etag) {
gchar* host = get_host(settings->url);
if (host) {
file = g_strdup(url);
g_free(url);
url = g_strdup_printf("%s%s", host, file);
g_free(file);
g_free(host);
}
else {
g_free(etag);
g_free(url);
url = NULL;
}
}
else {
g_free(url);
url = NULL;
}
if (url) {
int lock = 0;
caldav_error lock_error;
file = g_strdup(etag);
g_free(etag);
etag = g_strdup_printf("If-Match: %s", file);
g_free(file);
http_header = curl_slist_append(http_header, etag);
g_free(etag);
http_header = curl_slist_append(http_header,
"Content-Type: text/calendar; charset=\"utf-8\"");
http_header = curl_slist_append(http_header, "Expect:");
http_header = curl_slist_append(
http_header, "Transfer-Encoding:");
if (settings->use_locking)
LOCKSUPPORT = caldav_lock_support(settings, &lock_error);
else
LOCKSUPPORT = FALSE;
if (LOCKSUPPORT) {
lock_token = caldav_lock_object(url, settings, &lock_error);
if (lock_token) {
http_header = curl_slist_append(
http_header, g_strdup_printf(
"If: (%s)", lock_token));
}
/*
* If error code is 423 (Resource is LOCKED) bail out
*/
else if (lock_error.code == 423) {
lock = -1;
}
/*
* If error code is 501 (Not implemented) we continue
* hoping for the best.
*/
else if (lock_error.code == 501) {
lock_token = g_strdup("");
}
else {
lock = -1;
}
}
if (! LOCKSUPPORT || (LOCKSUPPORT && lock_token && lock_error.code != 423)) {
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, http_header);
curl_easy_setopt(curl, CURLOPT_URL, rebuild_url(settings, url));
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, settings->file);
curl_easy_setopt (curl, CURLOPT_POSTFIELDSIZE,
strlen(settings->file));
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
res = curl_easy_perform(curl);
if (LOCKSUPPORT && lock_token) {
caldav_unlock_object(
lock_token, url, settings, &lock_error);
}
}
g_free(url);
g_free(lock_token);
if (res != 0 || lock < 0) {
/* Is this a lock_error don't change error*/
if (lock == 0 || lock_error.code == 423) {
error->code = code;
error->str = g_strdup(chunk.memory);
}
else {
error->code = lock_error.code;
error->str = g_strdup(lock_error.str);
}
result = TRUE;
g_free(settings->file);
settings->file = NULL;
}
else {
long code;
res = curl_easy_getinfo(
curl, CURLINFO_RESPONSE_CODE, &code);
if (code != 204) {
error->code = code;
error->str = g_strdup(chunk.memory);
result = TRUE;
}
}
curl_slist_free_all(http_header);
}
else {
error->code = code;
if (chunk.memory)
error->str = g_strdup(chunk.memory);
else
error->str = g_strdup("No object found");
result = TRUE;
}
}
else {
/*
* No object found on server. Posible synchronization
* problem or a server side race condition
*/
error->code = 409;
error->str = g_strdup("No object found");
result = TRUE;
}
}
}
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_easy_cleanup(curl);
return result;
}

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __MODIFY_CALDAV_OBJECT_H__
#define __MODIFY_CALDAV_OBJECT_H__
#include "caldav-utils.h"
#include "caldav.h"
/**
* Function for modifying an event.
* @param settings A pointer to caldav_settings. @see caldav_settings
* @param error A pointer to caldav_error. @see caldav_error
* @return TRUE in case of error, FALSE otherwise.
*/
gboolean caldav_modify(caldav_settings* settings, caldav_error* error);
#endif

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "options-caldav-server.h"
#include <glib.h>
#include <curl/curl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/**
* Function for getting supported options from a server.
* @param curl A pointer to an initialized CURL instance
* @param settings struct containing the URL to the server. If authentication
* is required prior to making the call the credentials must be available
* via CURLOPT_USERPWD before calling.
* @param result A pointer to a struct _response. If test is true
* this variable can be NULL. Caller is responsible for freeing associated
* memory.
* @param error A pointer to caldav_error. @see caldav_error
* @param test if this is true response will be whether the server
* represented by the URL is a CalDAV collection or not.
* @return FALSE in case of error, TRUE otherwise.
*/
gboolean caldav_getoptions(CURL* curl, caldav_settings* settings, response* result,
caldav_error* error, gboolean test) {
CURLcode res = 0;
char error_buf[CURL_ERROR_SIZE];
struct MemoryStruct chunk;
struct MemoryStruct headers;
gboolean enabled = FALSE;
if (! curl)
return FALSE;
if (!error) {
error = (caldav_error *) malloc(sizeof(struct _caldav_error));
memset(error, '\0', sizeof(struct _caldav_error));
}
chunk.memory = NULL; /* we expect realloc(NULL, size) to work */
chunk.size = 0; /* no data at this point */
headers.memory = NULL;
headers.size = 0;
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEHEADER, (void *)&headers);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, (char *) &error_buf);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "OPTIONS");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH, 1);
curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
res = curl_easy_perform(curl);
if (res == 0) {
gchar* head;
head = get_response_header("DAV", headers.memory, TRUE);
if (head && strstr(head, "calendar-access") != NULL) {
enabled = TRUE;
if (! test) {
result->msg = g_strdup(
get_response_header("Allow", headers.memory, FALSE));
}
}
else {
long code;
res = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code);
if (code == 200) {
error->code = -1;
error->str = g_strdup("URL is not a CalDAV resource");
}
else {
error->code = -1 * code;
error->str = g_strdup(headers.memory);
}
}
g_free(head);
}
else if (
(res == CURLE_SSL_CONNECT_ERROR ||
CURLE_PEER_FAILED_VERIFICATION ||
CURLE_SSL_ENGINE_NOTFOUND ||
CURLE_SSL_ENGINE_SETFAILED ||
CURLE_SSL_CERTPROBLEM ||
CURLE_SSL_CIPHER ||
CURLE_SSL_CACERT ||
CURLE_SSL_CACERT_BADFILE ||
CURLE_SSL_CRL_BADFILE ||
CURLE_SSL_ISSUER_ERROR) && settings->usehttps) {
error->code = -2;
error->str = g_strdup(error_buf);
}
else if (res == CURLE_COULDNT_RESOLVE_HOST) {
error->code = -3;
error->str = g_strdup("Could not resolve host");
}
else if (res == CURLE_COULDNT_CONNECT) {
error->code = -4;
error->str = g_strdup("Unable to connect");
}
else {
error->code = -1;
error->str = g_strdup("URL is not a CalDAV resource");
}
if (chunk.memory)
free(chunk.memory);
if (headers.memory)
free(headers.memory);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "GET");
return enabled;
}

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/* vim: set textwidth=80 tabstop=4: */
/* Copyright (c) 2008 Michael Rasmussen (mir@datanom.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __OPTIONS_CALDAV_SERVER_H__
#define __OPTIONS_CALDAV_SERVER_H__
#include "caldav-utils.h"
#include "caldav.h"
/**
* Function for getting supported options from a server.
* @param curl A pointer to an initialized CURL instance
* @param settings struct containing the URL to the server. If authentication
* is required prior to making the call the credentials must be available
* via CURLOPT_USERPWD before calling.
* @param result A pointer to a struct _response. If test is true
* this variable can be NULL. Caller is responsible for freeing associated
* memory.
* @param error A pointer to caldav_error. @see caldav_error
* @param test if this is true response will be whether the server
* represented by the URL is a CalDAV collection or not.
* @return FALSE in case of error, TRUE otherwise.
*/
gboolean caldav_getoptions(CURL* curl, caldav_settings* settings, response* result,
caldav_error* error, gboolean test);
#endif
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