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https://github.com/qbittorrent/qBittorrent
synced 2025-07-16 02:03:07 -07:00
Big restructuring of the RSS code
Dropped Qt 4.4 support
This commit is contained in:
Christophe Dumez
parent
f7cb6a7da5
commit
a27d2dcac2
21 changed files with 1611 additions and 1344 deletions
317
src/rss/rssarticle.cpp
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317
src/rss/rssarticle.cpp
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/*
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* Bittorrent Client using Qt4 and libtorrent.
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* Copyright (C) 2010 Christophe Dumez, Arnaud Demaiziere
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* In addition, as a special exception, the copyright holders give permission to
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* link this program with the OpenSSL project's "OpenSSL" library (or with
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* modified versions of it that use the same license as the "OpenSSL" library),
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* and distribute the linked executables. You must obey the GNU General Public
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* License in all respects for all of the code used other than "OpenSSL". If you
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* modify file(s), you may extend this exception to your version of the file(s),
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* but you are not obligated to do so. If you do not wish to do so, delete this
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* exception statement from your version.
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*
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* Contact: chris@qbittorrent.org, arnaud@qbittorrent.org
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*/
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#include <QRegExp>
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#include <QVariant>
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#include <QStringList>
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#include <iostream>
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#include "rssarticle.h"
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static const char shortDay[][4] = {
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"Mon", "Tue", "Wed",
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"Thu", "Fri", "Sat",
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"Sun"
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};
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static const char longDay[][10] = {
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"Monday", "Tuesday", "Wednesday",
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"Thursday", "Friday", "Saturday",
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"Sunday"
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};
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static const char shortMonth[][4] = {
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"Jan", "Feb", "Mar", "Apr",
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"May", "Jun", "Jul", "Aug",
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"Sep", "Oct", "Nov", "Dec"
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};
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static const char longMonth[][10] = {
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"January", "February", "March",
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"April", "May", "June",
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"July", "August", "September",
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"October", "November", "December"
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};
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// Ported to Qt4 from KDElibs4
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QDateTime RssArticle::parseDate(const QString &string) {
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QString str = string.trimmed();
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if (str.isEmpty())
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return QDateTime::currentDateTime();
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int nyear = 6; // indexes within string to values
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int nmonth = 4;
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int nday = 2;
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int nwday = 1;
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int nhour = 7;
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int nmin = 8;
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int nsec = 9;
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// Also accept obsolete form "Weekday, DD-Mon-YY HH:MM:SS ±hhmm"
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QRegExp rx("^(?:([A-Z][a-z]+),\\s*)?(\\d{1,2})(\\s+|-)([^-\\s]+)(\\s+|-)(\\d{2,4})\\s+(\\d\\d):(\\d\\d)(?::(\\d\\d))?\\s+(\\S+)$");
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QStringList parts;
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if (!str.indexOf(rx)) {
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// Check that if date has '-' separators, both separators are '-'.
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parts = rx.capturedTexts();
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bool h1 = (parts[3] == QLatin1String("-"));
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bool h2 = (parts[5] == QLatin1String("-"));
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if (h1 != h2)
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return QDateTime::currentDateTime();
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} else {
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// Check for the obsolete form "Wdy Mon DD HH:MM:SS YYYY"
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rx = QRegExp("^([A-Z][a-z]+)\\s+(\\S+)\\s+(\\d\\d)\\s+(\\d\\d):(\\d\\d):(\\d\\d)\\s+(\\d\\d\\d\\d)$");
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if (str.indexOf(rx))
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return QDateTime::currentDateTime();
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nyear = 7;
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nmonth = 2;
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nday = 3;
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nwday = 1;
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nhour = 4;
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nmin = 5;
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nsec = 6;
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parts = rx.capturedTexts();
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}
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bool ok[4];
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const int day = parts[nday].toInt(&ok[0]);
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int year = parts[nyear].toInt(&ok[1]);
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const int hour = parts[nhour].toInt(&ok[2]);
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const int minute = parts[nmin].toInt(&ok[3]);
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if (!ok[0] || !ok[1] || !ok[2] || !ok[3])
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return QDateTime::currentDateTime();
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int second = 0;
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if (!parts[nsec].isEmpty()) {
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second = parts[nsec].toInt(&ok[0]);
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if (!ok[0])
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return QDateTime::currentDateTime();
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}
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bool leapSecond = (second == 60);
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if (leapSecond)
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second = 59; // apparently a leap second - validate below, once time zone is known
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int month = 0;
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for ( ; month < 12 && parts[nmonth] != shortMonth[month]; ++month) ;
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int dayOfWeek = -1;
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if (!parts[nwday].isEmpty()) {
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// Look up the weekday name
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while (++dayOfWeek < 7 && shortDay[dayOfWeek] != parts[nwday]) ;
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if (dayOfWeek >= 7)
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for (dayOfWeek = 0; dayOfWeek < 7 && longDay[dayOfWeek] != parts[nwday]; ++dayOfWeek) ;
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}
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// if (month >= 12 || dayOfWeek >= 7
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// || (dayOfWeek < 0 && format == RFCDateDay))
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// return QDateTime;
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int i = parts[nyear].size();
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if (i < 4) {
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// It's an obsolete year specification with less than 4 digits
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year += (i == 2 && year < 50) ? 2000: 1900;
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}
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// Parse the UTC offset part
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int offset = 0; // set default to '-0000'
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bool negOffset = false;
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if (parts.count() > 10) {
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rx = QRegExp("^([+-])(\\d\\d)(\\d\\d)$");
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if (!parts[10].indexOf(rx)) {
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// It's a UTC offset ±hhmm
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parts = rx.capturedTexts();
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offset = parts[2].toInt(&ok[0]) * 3600;
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int offsetMin = parts[3].toInt(&ok[1]);
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if (!ok[0] || !ok[1] || offsetMin > 59)
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return QDateTime();
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offset += offsetMin * 60;
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negOffset = (parts[1] == QLatin1String("-"));
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if (negOffset)
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offset = -offset;
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} else {
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// Check for an obsolete time zone name
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QByteArray zone = parts[10].toLatin1();
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if (zone.length() == 1 && isalpha(zone[0]) && toupper(zone[0]) != 'J')
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negOffset = true; // military zone: RFC 2822 treats as '-0000'
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else if (zone != "UT" && zone != "GMT") { // treated as '+0000'
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offset = (zone == "EDT") ? -4*3600
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: (zone == "EST" || zone == "CDT") ? -5*3600
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: (zone == "CST" || zone == "MDT") ? -6*3600
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: (zone == "MST" || zone == "PDT") ? -7*3600
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: (zone == "PST") ? -8*3600
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: 0;
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if (!offset) {
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// Check for any other alphabetic time zone
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bool nonalpha = false;
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for (int i = 0, end = zone.size(); i < end && !nonalpha; ++i)
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nonalpha = !isalpha(zone[i]);
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if (nonalpha)
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return QDateTime();
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// TODO: Attempt to recognize the time zone abbreviation?
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negOffset = true; // unknown time zone: RFC 2822 treats as '-0000'
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}
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}
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}
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}
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QDate qdate(year, month+1, day); // convert date, and check for out-of-range
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if (!qdate.isValid())
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return QDateTime::currentDateTime();
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QDateTime result(qdate, QTime(hour, minute, second));
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if (!result.isValid()
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|| (dayOfWeek >= 0 && result.date().dayOfWeek() != dayOfWeek+1))
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return QDateTime::currentDateTime(); // invalid date/time, or weekday doesn't correspond with date
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if (!offset) {
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result.setTimeSpec(Qt::UTC);
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}
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if (leapSecond) {
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// Validate a leap second time. Leap seconds are inserted after 23:59:59 UTC.
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// Convert the time to UTC and check that it is 00:00:00.
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if ((hour*3600 + minute*60 + 60 - offset + 86400*5) % 86400) // (max abs(offset) is 100 hours)
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return QDateTime::currentDateTime(); // the time isn't the last second of the day
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}
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return result;
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}
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// public constructor
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RssArticle::RssArticle(RssFeed* parent, QXmlStreamReader& xml): parent(parent), read(false) {
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is_valid = false;
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torrent_url = QString::null;
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news_link = QString::null;
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title = QString::null;
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while(!xml.atEnd()) {
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xml.readNext();
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if(xml.isEndElement() && xml.name() == "item")
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break;
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if(xml.isStartElement()) {
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if(xml.name() == "title") {
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title = xml.readElementText();
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}
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else if(xml.name() == "enclosure") {
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if(xml.attributes().value("type") == "application/x-bittorrent") {
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torrent_url = xml.attributes().value("url").toString();
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}
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}
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else if(xml.name() == "link") {
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news_link = xml.readElementText();
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if(id.isEmpty())
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id = news_link;
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}
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else if(xml.name() == "description") {
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description = xml.readElementText();
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}
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else if(xml.name() == "pubDate") {
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date = parseDate(xml.readElementText());
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}
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else if(xml.name() == "author") {
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author = xml.readElementText();
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}
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else if(xml.name() == "guid") {
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id = xml.readElementText();
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}
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}
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}
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if(!id.isEmpty())
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is_valid = true;
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}
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RssArticle::RssArticle(RssFeed* parent, QString _id, QString _title, QString _torrent_url, QString _news_link, QString _description, QDateTime _date, QString _author, bool _read):
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parent(parent), id(_id), title(_title), torrent_url(_torrent_url), news_link(_news_link), description(_description), date(_date), author(_author), read(_read){
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if(id.isEmpty())
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id = news_link;
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if(!id.isEmpty()) {
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is_valid = true;
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} else {
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std::cerr << "ERROR: an invalid RSS item was saved" << std::endl;
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is_valid = false;
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}
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}
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RssArticle::~RssArticle(){
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}
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bool RssArticle::has_attachment() const {
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return !torrent_url.isEmpty();
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}
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QString RssArticle::getId() const {
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return id;
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}
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QHash<QString, QVariant> RssArticle::toHash() const {
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QHash<QString, QVariant> item;
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item["title"] = title;
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item["id"] = id;
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item["torrent_url"] = torrent_url;
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item["news_link"] = news_link;
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item["description"] = description;
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item["date"] = date;
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item["author"] = author;
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item["read"] = read;
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return item;
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}
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RssArticle* RssArticle::fromHash(RssFeed* parent, const QHash<QString, QVariant> &h) {
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return new RssArticle(parent, h.value("id", "").toString(), h["title"].toString(), h["torrent_url"].toString(), h["news_link"].toString(),
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h["description"].toString(), h["date"].toDateTime(), h["author"].toString(), h["read"].toBool());
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}
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RssFeed* RssArticle::getParent() const {
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return parent;
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}
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bool RssArticle::isValid() const {
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return is_valid;
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}
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QString RssArticle::getTitle() const{
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return title;
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}
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QString RssArticle::getAuthor() const {
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return author;
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}
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QString RssArticle::getTorrentUrl() const{
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return torrent_url;
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}
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QString RssArticle::getLink() const {
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return news_link;
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}
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QString RssArticle::getDescription() const{
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if(description.isEmpty())
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return tr("No description available");
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return description;
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}
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QDateTime RssArticle::getDate() const {
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return date;
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}
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bool RssArticle::isRead() const{
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return read;
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}
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void RssArticle::setRead(){
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read = true;
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}
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