You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
325 lines
11 KiB
325 lines
11 KiB
/*
|
|
* newsengine.cpp
|
|
*
|
|
* Copyright (c) 2000, 2001 Frerich Raabe <raabe@kde.org>
|
|
*
|
|
* 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. For licensing and distribution details, check the
|
|
* accompanying file 'COPYING'.
|
|
*/
|
|
#include "newsengine.h"
|
|
#include "configiface.h"
|
|
#include "configaccess.h"
|
|
#include "xmlnewsaccess.h"
|
|
#include "newsiconmgr.h"
|
|
|
|
#include <kapplication.h>
|
|
#include <kdebug.h>
|
|
#include <kmessagebox.h>
|
|
#include <kprocess.h>
|
|
#include <krun.h>
|
|
#include <kstandarddirs.h>
|
|
|
|
#include <tqbuffer.h>
|
|
|
|
Article::Article(NewsSourceBase *parent, const TQString &headline,
|
|
const KURL &address)
|
|
: XMLNewsArticle(headline, address),
|
|
m_parent(parent),
|
|
m_read(false)
|
|
{
|
|
}
|
|
|
|
bool Article::operator==(const Article &other) const
|
|
{
|
|
return headline() == other.headline() && address() == other.address();
|
|
}
|
|
|
|
void Article::open()
|
|
{
|
|
(void) new KRun(address());
|
|
m_read = true;
|
|
}
|
|
|
|
NewsSourceBase::NewsSourceBase(const Data &nsd, ConfigIface *config)
|
|
: XMLNewsSource(),
|
|
m_data(nsd),
|
|
m_icon(TQPixmap()),
|
|
m_cfg(dynamic_cast<ConfigAccess *>(config)),
|
|
m_newsIconMgr(NewsIconMgr::self())
|
|
{
|
|
connect(this, TQT_SIGNAL(loadComplete(XMLNewsSource *, bool)),
|
|
TQT_SLOT(slotProcessArticles(XMLNewsSource *, bool)));
|
|
}
|
|
|
|
void NewsSourceBase::getIcon()
|
|
{
|
|
connect(m_newsIconMgr, TQT_SIGNAL(gotIcon(const KURL &, const TQPixmap &)),
|
|
this, TQT_SLOT(slotGotIcon(const KURL &, const TQPixmap &)));
|
|
m_newsIconMgr->getIcon( KURL( m_data.icon ) );
|
|
}
|
|
|
|
TQString NewsSourceBase::newsSourceName() const
|
|
{
|
|
if (m_cfg->customNames() || m_name.isEmpty())
|
|
return m_data.name;
|
|
else
|
|
return m_name;
|
|
}
|
|
|
|
TQString NewsSourceBase::subjectText(const Subject subject)
|
|
{
|
|
switch (subject) {
|
|
case Arts: return i18n("Arts");
|
|
case Business: return i18n("Business");
|
|
case Computers: return i18n("Computers");
|
|
case Games: return i18n("Games");
|
|
case Health: return i18n("Health");
|
|
case Home: return i18n("Home");
|
|
case Recreation: return i18n("Recreation");
|
|
case Reference: return i18n("Reference");
|
|
case Science: return i18n("Science");
|
|
case Shopping: return i18n("Shopping");
|
|
case Society: return i18n("Society");
|
|
case Sports: return i18n("Sports");
|
|
case Misc: return i18n("Miscellaneous");
|
|
case Magazines: return i18n("Magazines");
|
|
default: return i18n("Unknown");
|
|
}
|
|
}
|
|
|
|
void NewsSourceBase::slotProcessArticles(XMLNewsSource *, bool gotEm)
|
|
{
|
|
if (!gotEm) {
|
|
emit invalidInput(this);
|
|
return;
|
|
}
|
|
|
|
Article::List oldArticles = m_articles;
|
|
|
|
// Truncate the list of articles if necessary.
|
|
m_articles.clear();
|
|
XMLNewsArticle::List::ConstIterator it = XMLNewsSource::articles().begin();
|
|
XMLNewsArticle::List::ConstIterator end = XMLNewsSource::articles().end();
|
|
for (; it != end; ++it)
|
|
m_articles.append(new Article(this, (*it).headline(), (*it).address()));
|
|
|
|
// Fill the list with old articles until maxArticles is reached.
|
|
if (m_articles.count() < m_data.maxArticles) {
|
|
Article::List::ConstIterator oldArtIt = oldArticles.begin();
|
|
Article::List::ConstIterator oldArtEnd = oldArticles.end();
|
|
bool isNewArticle;
|
|
for (; oldArtIt != oldArtEnd; ++oldArtIt) {
|
|
isNewArticle = true;
|
|
Article::List::ConstIterator newArtIt = m_articles.begin();
|
|
Article::List::ConstIterator newArtEnd = m_articles.end();
|
|
for (; newArtIt != newArtEnd; ++newArtIt) {
|
|
Article newArt = **newArtIt;
|
|
Article oldArt = **oldArtIt;
|
|
if (newArt == oldArt)
|
|
isNewArticle = false;
|
|
}
|
|
|
|
if (isNewArticle)
|
|
m_articles.append(*oldArtIt);
|
|
if (m_articles.count() == m_data.maxArticles)
|
|
break;
|
|
}
|
|
} else
|
|
while (m_articles.count() > m_data.maxArticles)
|
|
m_articles.remove(m_articles.fromLast());
|
|
|
|
// Copy the read flag of known articles
|
|
Article::List::ConstIterator oldArtIt = oldArticles.begin();
|
|
Article::List::ConstIterator oldArtEnd = oldArticles.end();
|
|
for (; oldArtIt != oldArtEnd; ++oldArtIt) {
|
|
Article::List::Iterator newArtIt = m_articles.begin();
|
|
Article::List::Iterator newArtEnd = m_articles.end();
|
|
for (; newArtIt != newArtEnd; ++newArtIt)
|
|
if (**oldArtIt == **newArtIt)
|
|
(*newArtIt)->setRead((*oldArtIt)->read());
|
|
}
|
|
|
|
emit newNewsAvailable(this, oldArticles != m_articles);
|
|
}
|
|
|
|
Article::Ptr NewsSourceBase::article(const TQString &headline)
|
|
{
|
|
Article::List::ConstIterator it = m_articles.begin();
|
|
Article::List::ConstIterator end = m_articles.end();
|
|
for (; it != end; ++it)
|
|
if ((*it)->headline() == headline)
|
|
return *it;
|
|
|
|
return 0L;
|
|
}
|
|
|
|
void NewsSourceBase::slotGotIcon(const KURL &url, const TQPixmap &pixmap)
|
|
{
|
|
if (url.url() == m_data.icon) {
|
|
m_icon = pixmap;
|
|
|
|
disconnect(m_newsIconMgr, TQT_SIGNAL(gotIcon(const KURL &, const TQPixmap &)),
|
|
this, TQT_SLOT(slotGotIcon(const KURL &, const TQPixmap &)));
|
|
}
|
|
}
|
|
|
|
SourceFileNewsSource::SourceFileNewsSource(const NewsSourceBase::Data &nsd,
|
|
ConfigIface *config)
|
|
: NewsSourceBase(nsd, config)
|
|
{
|
|
}
|
|
|
|
void SourceFileNewsSource::retrieveNews()
|
|
{
|
|
loadFrom(KURL( m_data.sourceFile ));
|
|
}
|
|
|
|
ProgramNewsSource::ProgramNewsSource(const NewsSourceBase::Data &nsd,
|
|
ConfigIface *config) : NewsSourceBase(nsd, config),
|
|
m_program(new TDEProcess()),
|
|
m_programOutput(0)
|
|
{
|
|
connect(m_program, TQT_SIGNAL(processExited(TDEProcess *)),
|
|
TQT_SLOT(slotProgramExited(TDEProcess *)));
|
|
connect(m_program, TQT_SIGNAL(receivedStdout(TDEProcess *, char *, int)),
|
|
TQT_SLOT(slotGotProgramOutput(TDEProcess *, char *, int)));
|
|
|
|
m_data.sourceFile = KURL(m_data.sourceFile).encodedPathAndQuery();
|
|
}
|
|
|
|
ProgramNewsSource::~ProgramNewsSource()
|
|
{
|
|
delete m_program;
|
|
delete m_programOutput;
|
|
}
|
|
|
|
void ProgramNewsSource::retrieveNews()
|
|
{
|
|
m_programOutput = new TQBuffer;
|
|
m_programOutput->open(IO_WriteOnly);
|
|
|
|
*m_program << m_data.sourceFile;
|
|
m_program->start(TDEProcess::NotifyOnExit, TDEProcess::Stdout);
|
|
}
|
|
|
|
void ProgramNewsSource::slotGotProgramOutput(TDEProcess *, char *data, int length)
|
|
{
|
|
m_programOutput->writeBlock(data, length);
|
|
}
|
|
|
|
void ProgramNewsSource::slotProgramExited(TDEProcess *proc)
|
|
{
|
|
bool okSoFar = true;
|
|
|
|
TQString errorMsg;
|
|
|
|
if (!proc->normalExit()) {
|
|
errorMsg = i18n("<p>The program '%1' was terminated abnormally.<br>This can"
|
|
" happen if it receives the SIGKILL signal.</p>");
|
|
okSoFar = false;
|
|
} else {
|
|
ErrorCode error = static_cast<ErrorCode>(proc->exitStatus());
|
|
if (error != NOERR) {
|
|
errorMsg = errorMessage(error).arg(m_data.sourceFile);
|
|
okSoFar = false;
|
|
}
|
|
}
|
|
|
|
if (!okSoFar) {
|
|
TQString output = TQString(m_programOutput->buffer());
|
|
if (!output.isEmpty()) {
|
|
output = TQString::fromLatin1("\"") + output + TQString::fromLatin1("\"");
|
|
errorMsg += i18n("<p>Program output:<br>%1<br>").arg(output);
|
|
}
|
|
KMessageBox::detailedError(0, i18n("An error occurred while updating the"
|
|
" news source '%1'.").arg(newsSourceName()), errorMsg,
|
|
i18n("KNewsTicker Error"));
|
|
}
|
|
|
|
processData(m_programOutput->buffer(), okSoFar);
|
|
|
|
delete m_programOutput;
|
|
m_programOutput = 0;
|
|
}
|
|
|
|
TQString ProgramNewsSource::errorMessage(const ErrorCode errorCode)
|
|
{
|
|
switch (errorCode) {
|
|
case EPERM: return i18n("The program '%1' could not be started at all.");
|
|
case ENOENT: return i18n("The program '%1' tried to read or write a file or"
|
|
" directory which could not be found.");
|
|
case EIO: return i18n("An error occurred while the program '%1' tried to"
|
|
" read or write data.");
|
|
case E2BIG: return i18n("The program '%1' was passed too many arguments."
|
|
" Please adjust the command line in the configuration dialog.");
|
|
case ENOEXEC: return i18n("An external system program upon which the"
|
|
" program '%1' relied could not be executed.");
|
|
case EACCESS: return i18n("The program '%1' tried to read or write a file or"
|
|
" directory but lacks the permission to do so.");
|
|
case ENODEV: return i18n("The program '%1' tried to access a device which"
|
|
" was not available.");
|
|
case ENOSPC: return i18n("There is no more space left on the device used by"
|
|
" the program '%1'.");
|
|
case EROFS: return i18n("The program '%1' tried to create a temporary file"
|
|
" on a read only file system.");
|
|
case ENOSYS: return i18n("The program '%1' tried to call a function which"
|
|
" is not implemented or attempted to access an external resource which"
|
|
" does not exist.");
|
|
case ENODATA: return i18n("The program '%1' was unable to retrieve input data and"
|
|
" was therefore unable to return any XML data.");
|
|
case ENONET: return i18n("The program '%1' tried to access a host which is not"
|
|
" connected to a network.");
|
|
case EPROTO: return i18n("The program '%1' tried to access a protocol which is not"
|
|
" implemented.");
|
|
case EDESTADDRREQ: return i18n("The program '%1' requires you to configure a"
|
|
" destination address to retrieve data from. Please refer to the"
|
|
" documentation of the program for information on how to do that.");
|
|
case ESOCKTNOSUPPORT: return i18n("The program '%1' tried to use a socket"
|
|
" type which is not supported by this system.");
|
|
case ENETUNREACH: return i18n("The program '%1' tried to access an unreachable"
|
|
" network.");
|
|
case ENETRESET: return i18n("The network the program '%1' was trying to access"
|
|
" dropped the connection with a reset.");
|
|
case ECONNRESET: return i18n("The connection of the program '%1' was reset by"
|
|
" peer.");
|
|
case ETIMEDOUT: return i18n("The connection the program '%1' was trying to"
|
|
" establish timed out.");
|
|
case ECONNREFUSED: return i18n("The connection the program '%1' was trying to"
|
|
" establish was refused.");
|
|
case EHOSTDOWN: return i18n("The host the program '%1' was trying to reach is"
|
|
" down.");
|
|
case EHOSTUNREACH: return i18n("The host the program '%1' was trying to reach is"
|
|
" unreachable, no route to host.");
|
|
case ENOEXECBIT: return i18n("KNewsTicker could not execute the program '%1'"
|
|
" because its executable bit was not set. You can mark that program as"
|
|
" executable by executing the following steps:<ul>"
|
|
"<li>Open a Konqueror window and browse to the program</li>"
|
|
"<li>Click on the file with the right mouse button, and select 'Properties'</li>"
|
|
"<li>Open the 'Permissions' tab and make sure that the box in the column"
|
|
" 'Exec' and the row 'User' is checked to ensure that the current user"
|
|
" is allowed to execute that file.</li></ul>");
|
|
case EBADREQ: return i18n("The program '%1' sent a bad request which was not"
|
|
" understood by the server.");
|
|
case ENOAUTH: return i18n("The program '%1' failed to issue an authorization for"
|
|
" an area which needs some form of authorization before it can be"
|
|
" accessed.");
|
|
case EMUSTPAY: return i18n("The program '%1' aborted because it could not access"
|
|
" the data without paying for it.");
|
|
case EFORBIDDEN: return i18n("The program '%1' tried to access a forbidden"
|
|
" source.");
|
|
case ENOTFOUND: return i18n("The program '%1' tried to access data which"
|
|
" could not be found.");
|
|
case ETIMEOUT: return i18n("The HTTP request of the program '%1' timed out.");
|
|
case ESERVERE: return i18n("A server error has been encountered. It is likely"
|
|
" that you cannot do anything about it.");
|
|
case EHTTPNOSUP: return i18n("The HTTP protocol version used by the program"
|
|
" '%1' was not understood by the HTTP server or source.");
|
|
default: return i18n("KNewsTicker was unable to detect the exact reasons for"
|
|
" the error.");
|
|
}
|
|
}
|
|
|
|
#include "newsengine.moc"
|