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tdepim/kalarm/kamail.cpp

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33 KiB

/*
* kamail.cpp - email functions
* Program: kalarm
* Copyright © 2002-2005,2008 by David Jarvie <djarvie@kde.org>
*
* 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 2 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "kalarm.h"
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <pwd.h>
#include <tqfile.h>
#include <tqregexp.h>
#include <kstandarddirs.h>
#include <dcopclient.h>
#include <dcopref.h>
#include <kmessagebox.h>
#include <kprocess.h>
#include <klocale.h>
#include <kaboutdata.h>
#include <kfileitem.h>
#include <kio/netaccess.h>
#include <ktempfile.h>
#include <kemailsettings.h>
#include <kdebug.h>
#include <libkpimidentities/identitymanager.h>
#include <libkpimidentities/identity.h>
#include <libemailfunctions/email.h>
#include <libkcal/person.h>
#include <kmime_header_parsing.h>
#include "alarmevent.h"
#include "functions.h"
#include "kalarmapp.h"
#include "mainwindow.h"
#include "preferences.h"
#include "kamail.h"
namespace HeaderParsing
{
bool parseAddress( const char* & scursor, const char * const send,
KMime::Types::Address & result, bool isCRLF=false );
bool parseAddressList( const char* & scursor, const char * const send,
TQValueList<KMime::Types::Address> & result, bool isCRLF=false );
}
namespace
{
TQString getHostName();
}
struct KAMailData
{
KAMailData(const KAEvent& e, const TQString& fr, const TQString& bc, bool allownotify)
: event(e), from(fr), bcc(bc), allowNotify(allownotify) { }
const KAEvent& event;
TQString from;
TQString bcc;
bool allowNotify;
};
TQString KAMail::i18n_NeedFromEmailAddress()
{ return i18n("A 'From' email address must be configured in order to execute email alarms."); }
TQString KAMail::i18n_sent_mail()
{ return i18n("KMail folder name: this should be translated the same as in kmail", "sent-mail"); }
KPIM::IdentityManager* KAMail::mIdentityManager = 0;
KPIM::IdentityManager* KAMail::identityManager()
{
if (!mIdentityManager)
mIdentityManager = new KPIM::IdentityManager(true); // create a read-only kmail identity manager
return mIdentityManager;
}
/******************************************************************************
* Send the email message specified in an event.
* Reply = true if the message was sent - 'errmsgs' may contain copy error messages.
* = false if the message was not sent - 'errmsgs' contains the error messages.
*/
bool KAMail::send(const KAEvent& event, TQStringList& errmsgs, bool allowNotify)
{
TQString err;
TQString from;
KPIM::Identity identity;
if (!event.emailFromId())
from = Preferences::emailAddress();
else
{
identity = mIdentityManager->identityForUoid(event.emailFromId());
if (identity.isNull())
{
kdError(5950) << "KAMail::send(): identity" << event.emailFromId() << "not found" << endl;
errmsgs = errors(i18n("Invalid 'From' email address.\nKMail identity '%1' not found.").tqarg(event.emailFromId()));
return false;
}
from = identity.fullEmailAddr();
if (from.isEmpty())
{
kdError(5950) << "KAMail::send(): identity" << identity.identityName() << "uoid" << identity.uoid() << ": no email address" << endl;
errmsgs = errors(i18n("Invalid 'From' email address.\nEmail identity '%1' has no email address").tqarg(identity.identityName()));
return false;
}
}
if (from.isEmpty())
{
switch (Preferences::emailFrom())
{
case Preferences::MAIL_FROM_KMAIL:
errmsgs = errors(i18n("No 'From' email address is configured (no default KMail identity found)\nPlease set it in KMail or in the KAlarm Preferences dialog."));
break;
case Preferences::MAIL_FROM_CONTROL_CENTRE:
errmsgs = errors(i18n("No 'From' email address is configured.\nPlease set it in the KDE Control Center or in the KAlarm Preferences dialog."));
break;
case Preferences::MAIL_FROM_ADDR:
default:
errmsgs = errors(i18n("No 'From' email address is configured.\nPlease set it in the KAlarm Preferences dialog."));
break;
}
return false;
}
KAMailData data(event, from,
(event.emailBcc() ? Preferences::emailBccAddress() : TQString()),
allowNotify);
kdDebug(5950) << "KAlarmApp::sendEmail(): To: " << event.emailAddresses(", ")
<< "\nSubject: " << event.emailSubject() << endl;
if (Preferences::emailClient() == Preferences::SENDMAIL)
{
// Use sendmail to send the message
TQString textComplete;
TQString command = KStandardDirs::findExe(TQString::fromLatin1("sendmail"),
TQString::fromLatin1("/sbin:/usr/sbin:/usr/lib"));
if (!command.isNull())
{
command += TQString::fromLatin1(" -f ");
command += KPIM::getEmailAddress(from);
command += TQString::fromLatin1(" -oi -t ");
textComplete = initHeaders(data, false);
}
else
{
command = KStandardDirs::findExe(TQString::fromLatin1("mail"));
if (command.isNull())
{
errmsgs = errors(i18n("%1 not found").tqarg(TQString::fromLatin1("sendmail"))); // give up
return false;
}
command += TQString::fromLatin1(" -s ");
command += KShellProcess::quote(event.emailSubject());
if (!data.bcc.isEmpty())
{
command += TQString::fromLatin1(" -b ");
command += KShellProcess::quote(data.bcc);
}
command += ' ';
command += event.emailAddresses(" "); // locally provided, okay
}
// Add the body and attachments to the message.
// (Sendmail requires attachments to have already been included in the message.)
err = appendBodyAttachments(textComplete, event);
if (!err.isNull())
{
errmsgs = errors(err);
return false;
}
// Execute the send command
FILE* fd = popen(command.local8Bit(), "w");
if (!fd)
{
kdError(5950) << "KAMail::send(): Unable to open a pipe to " << command << endl;
errmsgs = errors();
return false;
}
fwrite(textComplete.local8Bit(), textComplete.length(), 1, fd);
pclose(fd);
if (Preferences::emailCopyToKMail())
{
// Create a copy of the sent email in KMail's 'Sent-mail' folder
err = addToKMailFolder(data, "sent-mail", true);
if (!err.isNull())
errmsgs = errors(err, false); // not a fatal error - continue
}
if (allowNotify)
notifyQueued(event);
}
else
{
// Use KMail to send the message
err = sendKMail(data);
if (!err.isNull())
{
errmsgs = errors(err);
return false;
}
}
return true;
}
/******************************************************************************
* Send the email message via KMail.
* Reply = reason for failure (which may be the empty string)
* = null string if success.
*/
TQString KAMail::sendKMail(const KAMailData& data)
{
TQString err = KAlarm::runKMail(true);
if (!err.isNull())
return err;
// KMail is now running. Determine which DCOP call to use.
bool useSend = false;
TQCString sendFunction = "sendMessage(TQString,TQString,TQString,TQString,TQString,TQString,KURL::List)";
QCStringList funcs = kapp->dcopClient()->remoteFunctions("kmail", "MailTransportServiceIface");
for (QCStringList::Iterator it=funcs.begin(); it != funcs.end() && !useSend; ++it)
{
TQCString func = DCOPClient::normalizeFunctionSignature(*it);
if (func.left(5) == "bool ")
{
func = func.mid(5);
func.replace(TQRegExp(" [0-9A-Za-z_:]+"), "");
useSend = (func == sendFunction);
}
}
TQByteArray callData;
TQDataStream arg(callData, IO_WriteOnly);
kdDebug(5950) << "KAMail::sendKMail(): using " << (useSend ? "sendMessage()" : "dcopAddMessage()") << endl;
if (useSend)
{
// This version of KMail has the sendMessage() function,
// which transmits the message immediately.
arg << data.from;
arg << data.event.emailAddresses(", ");
arg << ""; // CC:
arg << data.bcc;
arg << data.event.emailSubject();
arg << data.event.message();
arg << KURL::List(data.event.emailAttachments());
if (!callKMail(callData, "MailTransportServiceIface", sendFunction, "bool"))
return i18n("Error calling KMail");
}
else
{
// KMail is an older version, so use dcopAddMessage()
// to add the message to the outbox for later transmission.
err = addToKMailFolder(data, "outbox", false);
if (!err.isNull())
return err;
}
if (data.allowNotify)
notifyQueued(data.event);
return TQString();
}
/******************************************************************************
* Add the message to a KMail folder.
* Reply = reason for failure (which may be the empty string)
* = null string if success.
*/
TQString KAMail::addToKMailFolder(const KAMailData& data, const char* folder, bool checkKmailRunning)
{
TQString err;
if (checkKmailRunning)
err = KAlarm::runKMail(true);
if (err.isNull())
{
TQString message = initHeaders(data, true);
err = appendBodyAttachments(message, data.event);
if (!err.isNull())
return err;
// Write to a temporary file for feeding to KMail
KTempFile tmpFile;
tmpFile.setAutoDelete(true); // delete file when it is destructed
TQTextStream* stream = tmpFile.textStream();
if (!stream)
{
kdError(5950) << "KAMail::addToKMailFolder(" << folder << "): Unable to open a temporary mail file" << endl;
return TQString("");
}
*stream << message;
tmpFile.close();
if (tmpFile.status())
{
kdError(5950) << "KAMail::addToKMailFolder(" << folder << "): Error " << tmpFile.status() << " writing to temporary mail file" << endl;
return TQString("");
}
// Notify KMail of the message in the temporary file
TQByteArray callData;
TQDataStream arg(callData, IO_WriteOnly);
arg << TQString::fromLatin1(folder) << tmpFile.name();
if (callKMail(callData, "KMailIface", "dcopAddMessage(TQString,TQString)", "int"))
return TQString();
err = i18n("Error calling KMail");
}
kdError(5950) << "KAMail::addToKMailFolder(" << folder << "): " << err << endl;
return err;
}
/******************************************************************************
* Call KMail via DCOP. The DCOP function must return an 'int'.
*/
bool KAMail::callKMail(const TQByteArray& callData, const TQCString& iface, const TQCString& function, const TQCString& funcType)
{
TQCString replyType;
TQByteArray replyData;
if (!kapp->dcopClient()->call("kmail", iface, function, callData, replyType, replyData)
|| replyType != funcType)
{
TQCString funcname = function;
funcname.replace(TQRegExp("(.+$"), "()");
kdError(5950) << "KAMail::callKMail(): kmail " << funcname << " call failed\n";;
return false;
}
TQDataStream replyStream(replyData, IO_ReadOnly);
TQCString funcname = function;
funcname.replace(TQRegExp("(.+$"), "()");
if (replyType == "int")
{
int result;
replyStream >> result;
if (result <= 0)
{
kdError(5950) << "KAMail::callKMail(): kmail " << funcname << " call returned error code = " << result << endl;
return false;
}
}
else if (replyType == "bool")
{
bool result;
replyStream >> result;
if (!result)
{
kdError(5950) << "KAMail::callKMail(): kmail " << funcname << " call returned error\n";
return false;
}
}
return true;
}
/******************************************************************************
* Create the headers part of the email.
*/
TQString KAMail::initHeaders(const KAMailData& data, bool dateId)
{
TQString message;
if (dateId)
{
struct timeval tod;
gettimeofday(&tod, 0);
time_t timenow = tod.tv_sec;
char buff[64];
strftime(buff, sizeof(buff), "Date: %a, %d %b %Y %H:%M:%S %z", localtime(&timenow));
TQString from = data.from;
from.replace(TQRegExp("^.*<"), TQString()).replace(TQRegExp(">.*$"), TQString());
message = TQString::fromLatin1(buff);
message += TQString::fromLatin1("\nMessage-Id: <%1.%2.%3>\n").tqarg(timenow).tqarg(tod.tv_usec).tqarg(from);
}
message += TQString::fromLatin1("From: ") + data.from;
message += TQString::fromLatin1("\nTo: ") + data.event.emailAddresses(", ");
if (!data.bcc.isEmpty())
message += TQString::fromLatin1("\nBcc: ") + data.bcc;
message += TQString::fromLatin1("\nSubject: ") + data.event.emailSubject();
message += TQString::fromLatin1("\nX-Mailer: %1/" KALARM_VERSION).tqarg(kapp->aboutData()->programName());
return message;
}
/******************************************************************************
* Append the body and attachments to the email text.
* Reply = reason for error
* = 0 if successful.
*/
TQString KAMail::appendBodyAttachments(TQString& message, const KAEvent& event)
{
static const char* textMimeTypes[] = {
"application/x-sh", "application/x-csh", "application/x-shellscript",
"application/x-nawk", "application/x-gawk", "application/x-awk",
"application/x-perl", "application/x-desktop",
0
};
TQStringList attachments = event.emailAttachments();
if (!attachments.count())
{
// There are no attachments, so simply append the message body
message += "\n\n";
message += event.message();
}
else
{
// There are attachments, so the message must be in MIME format
// Create a boundary string
time_t timenow;
time(&timenow);
TQCString boundary;
boundary.sprintf("------------_%lu_-%lx=", 2*timenow, timenow);
message += TQString::fromLatin1("\nMIME-Version: 1.0");
message += TQString::fromLatin1("\nContent-Type: multipart/mixed;\n boundary=\"%1\"\n").tqarg(boundary.data());
if (!event.message().isEmpty())
{
// There is a message body
message += TQString::fromLatin1("\n--%1\nContent-Type: text/plain\nContent-Transfer-Encoding: 8bit\n\n").tqarg(boundary.data());
message += event.message();
}
// Append each attachment in turn
TQString attachError = i18n("Error attaching file:\n%1");
for (TQStringList::Iterator at = attachments.begin(); at != attachments.end(); ++at)
{
TQString attachment = (*at).local8Bit();
KURL url(attachment);
url.cleanPath();
KIO::UDSEntry uds;
if (!KIO::NetAccess::stat(url, uds, MainWindow::mainMainWindow())) {
kdError(5950) << "KAMail::appendBodyAttachments(): not found: " << attachment << endl;
return i18n("Attachment not found:\n%1").tqarg(attachment);
}
KFileItem fi(uds, url);
if (fi.isDir() || !fi.isReadable()) {
kdError(5950) << "KAMail::appendBodyAttachments(): not file/not readable: " << attachment << endl;
return attachError.tqarg(attachment);
}
// Check if the attachment is a text file
TQString mimeType = fi.mimetype();
bool text = mimeType.startsWith("text/");
if (!text)
{
for (int i = 0; !text && textMimeTypes[i]; ++i)
text = (mimeType == textMimeTypes[i]);
}
message += TQString::fromLatin1("\n--%1").tqarg(boundary.data());
message += TQString::fromLatin1("\nContent-Type: %2; name=\"%3\"").tqarg(mimeType).tqarg(fi.text());
message += TQString::fromLatin1("\nContent-Transfer-Encoding: %1").tqarg(TQString::fromLatin1(text ? "8bit" : "BASE64"));
message += TQString::fromLatin1("\nContent-Disposition: attachment; filename=\"%4\"\n\n").tqarg(fi.text());
// Read the file contents
TQString tmpFile;
if (!KIO::NetAccess::download(url, tmpFile, MainWindow::mainMainWindow())) {
kdError(5950) << "KAMail::appendBodyAttachments(): load failure: " << attachment << endl;
return attachError.tqarg(attachment);
}
TQFile file(tmpFile);
if (!file.open(IO_ReadOnly) ) {
kdDebug(5950) << "KAMail::appendBodyAttachments() tmp load error: " << attachment << endl;
return attachError.tqarg(attachment);
}
TQIODevice::Offset size = file.size();
char* contents = new char [size + 1];
TQ_LONG bytes = file.readBlock(contents, size);
file.close();
contents[size] = 0;
bool atterror = false;
if (bytes == -1 || (TQIODevice::Offset)bytes < size) {
kdDebug(5950) << "KAMail::appendBodyAttachments() read error: " << attachment << endl;
atterror = true;
}
else if (text)
{
// Text attachment doesn't need conversion
message += contents;
}
else
{
// Convert the attachment to BASE64 encoding
TQIODevice::Offset base64Size;
char* base64 = base64Encode(contents, size, base64Size);
if (base64Size == (TQIODevice::Offset)-1) {
kdDebug(5950) << "KAMail::appendBodyAttachments() base64 buffer overflow: " << attachment << endl;
atterror = true;
}
else
message += TQString::fromLatin1(base64, base64Size);
delete[] base64;
}
delete[] contents;
if (atterror)
return attachError.tqarg(attachment);
}
message += TQString::fromLatin1("\n--%1--\n.\n").tqarg(boundary.data());
}
return TQString();
}
/******************************************************************************
* If any of the destination email addresses are non-local, display a
* notification message saying that an email has been queued for sending.
*/
void KAMail::notifyQueued(const KAEvent& event)
{
KMime::Types::Address addr;
TQString localhost = TQString::fromLatin1("localhost");
TQString hostname = getHostName();
const EmailAddressList& addresses = event.emailAddresses();
for (TQValueList<KCal::Person>::ConstIterator it = addresses.begin(); it != addresses.end(); ++it)
{
TQCString email = (*it).email().local8Bit();
const char* em = email;
if (!email.isEmpty()
&& HeaderParsing::parseAddress(em, em + email.length(), addr))
{
TQString domain = addr.mailboxList.first().addrSpec.domain;
if (!domain.isEmpty() && domain != localhost && domain != hostname)
{
TQString text = (Preferences::emailClient() == Preferences::KMAIL)
? i18n("An email has been queued to be sent by KMail")
: i18n("An email has been queued to be sent");
KMessageBox::information(0, text, TQString(), Preferences::EMAIL_TQUEUED_NOTIFY);
return;
}
}
}
}
/******************************************************************************
* Return whether any KMail identities exist.
*/
bool KAMail::identitiesExist()
{
identityManager(); // create identity manager if not already done
return mIdentityManager->begin() != mIdentityManager->end();
}
/******************************************************************************
* Fetch the uoid of an email identity name or uoid string.
*/
uint KAMail::identityUoid(const TQString& identityUoidOrName)
{
bool ok;
uint id = identityUoidOrName.toUInt(&ok);
if (!ok || identityManager()->identityForUoid(id).isNull())
{
identityManager(); // fetch it if not already done
for (KPIM::IdentityManager::ConstIterator it = mIdentityManager->begin();
it != mIdentityManager->end(); ++it)
{
if ((*it).identityName() == identityUoidOrName)
{
id = (*it).uoid();
break;
}
}
}
return id;
}
/******************************************************************************
* Fetch the user's email address configured in the KDE Control Centre.
*/
TQString KAMail::controlCentreAddress()
{
KEMailSettings e;
return e.getSetting(KEMailSettings::EmailAddress);
}
/******************************************************************************
* Parse a list of email addresses, optionally containing display names,
* entered by the user.
* Reply = the invalid item if error, else empty string.
*/
TQString KAMail::convertAddresses(const TQString& items, EmailAddressList& list)
{
list.clear();
TQCString addrs = items.local8Bit();
const char* ad = static_cast<const char*>(addrs);
// parse an address-list
TQValueList<KMime::Types::Address> maybeAddressList;
if (!HeaderParsing::parseAddressList(ad, ad + addrs.length(), maybeAddressList))
return TQString::fromLocal8Bit(ad); // return the address in error
// extract the mailboxes and complain if there are groups
for (TQValueList<KMime::Types::Address>::ConstIterator it = maybeAddressList.begin();
it != maybeAddressList.end(); ++it)
{
TQString bad = convertAddress(*it, list);
if (!bad.isEmpty())
return bad;
}
return TQString();
}
#if 0
/******************************************************************************
* Parse an email address, optionally containing display name, entered by the
* user, and append it to the specified list.
* Reply = the invalid item if error, else empty string.
*/
TQString KAMail::convertAddress(const TQString& item, EmailAddressList& list)
{
TQCString addr = item.local8Bit();
const char* ad = static_cast<const char*>(addr);
KMime::Types::Address maybeAddress;
if (!HeaderParsing::parseAddress(ad, ad + addr.length(), maybeAddress))
return item; // error
return convertAddress(maybeAddress, list);
}
#endif
/******************************************************************************
* Convert a single KMime::Types address to a KCal::Person instance and append
* it to the specified list.
*/
TQString KAMail::convertAddress(KMime::Types::Address addr, EmailAddressList& list)
{
if (!addr.displayName.isEmpty())
{
kdDebug(5950) << "mailbox groups not allowed! Name: \"" << addr.displayName << "\"" << endl;
return addr.displayName;
}
const TQValueList<KMime::Types::Mailbox>& mblist = addr.mailboxList;
for (TQValueList<KMime::Types::Mailbox>::ConstIterator mb = mblist.begin();
mb != mblist.end(); ++mb)
{
TQString addrPart = (*mb).addrSpec.localPart;
if (!(*mb).addrSpec.domain.isEmpty())
{
addrPart += TQChar('@');
addrPart += (*mb).addrSpec.domain;
}
list += KCal::Person((*mb).displayName, addrPart);
}
return TQString();
}
/*
TQString KAMail::convertAddresses(const TQString& items, TQStringList& list)
{
EmailAddressList addrs;
TQString item = convertAddresses(items, addrs);
if (!item.isEmpty())
return item;
for (EmailAddressList::Iterator ad = addrs.begin(); ad != addrs.end(); ++ad)
{
item = (*ad).fullName().local8Bit();
switch (checkAddress(item))
{
case 1: // OK
list += item;
break;
case 0: // null address
break;
case -1: // invalid address
return item;
}
}
return TQString();
}*/
/******************************************************************************
* Check the validity of an email address.
* Because internal email addresses don't have to abide by the usual internet
* email address rules, only some basic checks are made.
* Reply = 1 if alright, 0 if empty, -1 if error.
*/
int KAMail::checkAddress(TQString& address)
{
address = address.stripWhiteSpace();
// Check that there are no list separator characters present
if (address.find(',') >= 0 || address.find(';') >= 0)
return -1;
int n = address.length();
if (!n)
return 0;
int start = 0;
int end = n - 1;
if (address[end] == '>')
{
// The email address is in <...>
if ((start = address.find('<')) < 0)
return -1;
++start;
--end;
}
int i = address.find('@', start);
if (i >= 0)
{
if (i == start || i == end) // check @ isn't the first or last character
// || address.find('@', i + 1) >= 0) // check for multiple @ characters
return -1;
}
/* else
{
// Allow the @ character to be missing if it's a local user
if (!getpwnam(address.mid(start, end - start + 1).local8Bit()))
return false;
}
for (int i = start; i <= end; ++i)
{
char ch = address[i].latin1();
if (ch == '.' || ch == '@' || ch == '-' || ch == '_'
|| (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')
|| (ch >= '0' && ch <= '9'))
continue;
return false;
}*/
return 1;
}
/******************************************************************************
* Convert a comma or semicolon delimited list of attachments into a
* TQStringList. The items are checked for validity.
* Reply = the invalid item if error, else empty string.
*/
TQString KAMail::convertAttachments(const TQString& items, TQStringList& list)
{
KURL url;
list.clear();
int length = items.length();
for (int next = 0; next < length; )
{
// Find the first delimiter character (, or ;)
int i = items.find(',', next);
if (i < 0)
i = items.length();
int sc = items.find(';', next);
if (sc < 0)
sc = items.length();
if (sc < i)
i = sc;
TQString item = items.mid(next, i - next).stripWhiteSpace();
switch (checkAttachment(item))
{
case 1: list += item; break;
case 0: break; // empty attachment name
case -1:
default: return item; // error
}
next = i + 1;
}
return TQString();
}
#if 0
/******************************************************************************
* Convert a comma or semicolon delimited list of attachments into a
* KURL::List. The items are checked for validity.
* Reply = the invalid item if error, else empty string.
*/
TQString KAMail::convertAttachments(const TQString& items, KURL::List& list)
{
KURL url;
list.clear();
TQCString addrs = items.local8Bit();
int length = items.length();
for (int next = 0; next < length; )
{
// Find the first delimiter character (, or ;)
int i = items.find(',', next);
if (i < 0)
i = items.length();
int sc = items.find(';', next);
if (sc < 0)
sc = items.length();
if (sc < i)
i = sc;
TQString item = items.mid(next, i - next);
switch (checkAttachment(item, &url))
{
case 1: list += url; break;
case 0: break; // empty attachment name
case -1:
default: return item; // error
}
next = i + 1;
}
return TQString();
}
#endif
/******************************************************************************
* Check for the existence of the attachment file.
* If non-null, '*url' receives the KURL of the attachment.
* Reply = 1 if attachment exists
* = 0 if null name
* = -1 if doesn't exist.
*/
int KAMail::checkAttachment(TQString& attachment, KURL* url)
{
attachment = attachment.stripWhiteSpace();
if (attachment.isEmpty())
{
if (url)
*url = KURL();
return 0;
}
// Check that the file exists
KURL u = KURL::fromPathOrURL(attachment);
u.cleanPath();
if (url)
*url = u;
return checkAttachment(u) ? 1 : -1;
}
/******************************************************************************
* Check for the existence of the attachment file.
*/
bool KAMail::checkAttachment(const KURL& url)
{
KIO::UDSEntry uds;
if (!KIO::NetAccess::stat(url, uds, MainWindow::mainMainWindow()))
return false; // doesn't exist
KFileItem fi(uds, url);
if (fi.isDir() || !fi.isReadable())
return false;
return true;
}
/******************************************************************************
* Convert a block of memory to Base64 encoding.
* 'outSize' is set to the number of bytes used in the returned block, or to
* -1 if overflow.
* Reply = BASE64 buffer, which the caller must delete[] afterwards.
*/
char* KAMail::base64Encode(const char* in, TQIODevice::Offset size, TQIODevice::Offset& outSize)
{
const int MAX_LINELEN = 72;
static unsigned char dtable[65] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"0123456789+/";
char* out = new char [2*size + 5];
outSize = (TQIODevice::Offset)-1;
TQIODevice::Offset outIndex = 0;
int lineLength = 0;
for (TQIODevice::Offset inIndex = 0; inIndex < size; )
{
unsigned char igroup[3];
int n;
for (n = 0; n < 3; ++n)
{
if (inIndex < size)
igroup[n] = (unsigned char)in[inIndex++];
else
{
igroup[n] = igroup[2] = 0;
break;
}
}
if (n > 0)
{
unsigned char ogroup[4];
ogroup[0] = dtable[igroup[0] >> 2];
ogroup[1] = dtable[((igroup[0] & 3) << 4) | (igroup[1] >> 4)];
ogroup[2] = dtable[((igroup[1] & 0xF) << 2) | (igroup[2] >> 6)];
ogroup[3] = dtable[igroup[2] & 0x3F];
if (n < 3)
{
ogroup[3] = '=';
if (n < 2)
ogroup[2] = '=';
}
if (outIndex >= size*2)
{
delete[] out;
return 0;
}
for (int i = 0; i < 4; ++i)
{
if (lineLength >= MAX_LINELEN)
{
out[outIndex++] = '\r';
out[outIndex++] = '\n';
lineLength = 0;
}
out[outIndex++] = ogroup[i];
++lineLength;
}
}
}
if (outIndex + 2 < size*2)
{
out[outIndex++] = '\r';
out[outIndex++] = '\n';
}
outSize = outIndex;
return out;
}
/******************************************************************************
* Set the appropriate error messages for a given error string.
*/
TQStringList KAMail::errors(const TQString& err, bool sendfail)
{
TQString error1 = sendfail ? i18n("Failed to send email")
: i18n("Error copying sent email to KMail %1 folder").tqarg(i18n_sent_mail());
if (err.isEmpty())
return TQStringList(error1);
TQStringList errs(TQString::fromLatin1("%1:").tqarg(error1));
errs += err;
return errs;
}
/******************************************************************************
* Get the body of an email, given its serial number.
*/
TQString KAMail::getMailBody(TQ_UINT32 serialNumber)
{
// Get the body of the email from KMail
TQCString replyType;
TQByteArray replyData;
TQByteArray data;
TQDataStream arg(data, IO_WriteOnly);
arg << serialNumber;
arg << (int)0;
TQString body;
if (kapp->dcopClient()->call("kmail", "KMailIface", "getDecodedBodyPart(TQ_UINT32,int)", data, replyType, replyData)
&& replyType == TQSTRING_OBJECT_NAME_STRING)
{
TQDataStream reply_stream(replyData, IO_ReadOnly);
reply_stream >> body;
}
else
kdDebug(5950) << "KAMail::getMailBody(): kmail getDecodedBodyPart() call failed\n";
return body;
}
namespace
{
/******************************************************************************
* Get the local system's host name.
*/
TQString getHostName()
{
char hname[256];
if (gethostname(hname, sizeof(hname)))
return TQString();
return TQString::fromLocal8Bit(hname);
}
}
/*=============================================================================
= HeaderParsing : modified and additional functions.
= The following functions are modified from, or additional to, those in
= libkdenetwork kmime_header_parsing.cpp.
=============================================================================*/
namespace HeaderParsing
{
using namespace KMime;
using namespace KMime::Types;
using namespace KMime::HeaderParsing;
/******************************************************************************
* New function.
* Allow a local user name to be specified as an email address.
*/
bool parseUserName( const char* & scursor, const char * const send,
TQString & result, bool isCRLF ) {
TQString maybeLocalPart;
TQString tmp;
if ( scursor != send ) {
// first, eat any whitespace
eatCFWS( scursor, send, isCRLF );
char ch = *scursor++;
switch ( ch ) {
case '.': // dot
case '@':
case '"': // quoted-string
return false;
default: // atom
scursor--; // re-set scursor to point to ch again
tmp = TQString();
if ( parseAtom( scursor, send, result, false /* no 8bit */ ) ) {
if (getpwnam(result.local8Bit()))
return true;
}
return false; // parseAtom can only fail if the first char is non-atext.
}
}
return false;
}
/******************************************************************************
* Modified function.
* Allow a local user name to be specified as an email address, and reinstate
* the original scursor on error return.
*/
bool parseAddress( const char* & scursor, const char * const send,
Address & result, bool isCRLF ) {
// address := mailbox / group
eatCFWS( scursor, send, isCRLF );
if ( scursor == send ) return false;
// first try if it's a single mailbox:
Mailbox maybeMailbox;
const char * oldscursor = scursor;
if ( parseMailbox( scursor, send, maybeMailbox, isCRLF ) ) {
// yes, it is:
result.displayName = TQString();
result.mailboxList.append( maybeMailbox );
return true;
}
scursor = oldscursor;
// KAlarm: Allow a local user name to be specified
// no, it's not a single mailbox. Try if it's a local user name:
TQString maybeUserName;
if ( parseUserName( scursor, send, maybeUserName, isCRLF ) ) {
// yes, it is:
maybeMailbox.displayName = TQString();
maybeMailbox.addrSpec.localPart = maybeUserName;
maybeMailbox.addrSpec.domain = TQString();
result.displayName = TQString();
result.mailboxList.append( maybeMailbox );
return true;
}
scursor = oldscursor;
Address maybeAddress;
// no, it's not a single mailbox. Try if it's a group:
if ( !parseGroup( scursor, send, maybeAddress, isCRLF ) )
{
scursor = oldscursor; // KAlarm: reinstate original scursor on error return
return false;
}
result = maybeAddress;
return true;
}
/******************************************************************************
* Modified function.
* Allow either ',' or ';' to be used as an email address separator.
*/
bool parseAddressList( const char* & scursor, const char * const send,
TQValueList<Address> & result, bool isCRLF ) {
while ( scursor != send ) {
eatCFWS( scursor, send, isCRLF );
// end of header: this is OK.
if ( scursor == send ) return true;
// empty entry: ignore:
if ( *scursor == ',' || *scursor == ';' ) { scursor++; continue; } // KAlarm: allow ';' as address separator
// parse one entry
Address maybeAddress;
if ( !parseAddress( scursor, send, maybeAddress, isCRLF ) ) return false;
result.append( maybeAddress );
eatCFWS( scursor, send, isCRLF );
// end of header: this is OK.
if ( scursor == send ) return true;
// comma separating entries: eat it.
if ( *scursor == ',' || *scursor == ';' ) scursor++; // KAlarm: allow ';' as address separator
}
return true;
}
} // namespace HeaderParsing