RetroShare/plugins/FeedReader/interface/rsFeedReader.h
thunder2 ef49000b9a FeedReader:
- Added error handling to xml functions
- Added xslt transformation
- Added retransform of existing messages
- Redesigned preview dialog
- Enabled embed images for forum feeds
- Changed config format, switching back to an older version results in a loss of all data of the FeedReader

Added new base class RSPlainTextEdit with placeholder text.
New library libxslt needed

git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6081 b45a01b8-16f6-495d-af2f-9b41ad6348cc
2013-01-22 00:11:43 +00:00

225 lines
7.6 KiB
C++

/****************************************************************
* RetroShare GUI is distributed under the following license:
*
* Copyright (C) 2012 by Thunder
*
* 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.
****************************************************************/
#ifndef RETROSHARE_FEEDREADER_GUI_INTERFACE_H
#define RETROSHARE_FEEDREADER_GUI_INTERFACE_H
#include <inttypes.h>
#include <string>
#include <list>
class RsFeedReader;
extern RsFeedReader *rsFeedReader;
enum RsFeedReaderErrorState {
RS_FEED_ERRORSTATE_OK = 0,
/* download */
RS_FEED_ERRORSTATE_DOWNLOAD_INTERNAL_ERROR = 1,
RS_FEED_ERRORSTATE_DOWNLOAD_ERROR = 2,
RS_FEED_ERRORSTATE_DOWNLOAD_UNKNOWN_CONTENT_TYPE = 3,
RS_FEED_ERRORSTATE_DOWNLOAD_NOT_FOUND = 4,
RS_FEED_ERRORSTATE_DOWNLOAD_UNKOWN_RESPONSE_CODE = 5,
/* process */
RS_FEED_ERRORSTATE_PROCESS_INTERNAL_ERROR = 50,
RS_FEED_ERRORSTATE_PROCESS_UNKNOWN_FORMAT = 51,
RS_FEED_ERRORSTATE_PROCESS_FORUM_CREATE = 100,
RS_FEED_ERRORSTATE_PROCESS_FORUM_NOT_FOUND = 101,
RS_FEED_ERRORSTATE_PROCESS_FORUM_NO_ADMIN = 102,
RS_FEED_ERRORSTATE_PROCESS_FORUM_NOT_ANONYMOUS = 103,
RS_FEED_ERRORSTATE_PROCESS_HTML_ERROR = 150,
RS_FEED_ERRORSTATE_PROCESS_XPATH_INTERNAL_ERROR = 151,
RS_FEED_ERRORSTATE_PROCESS_XPATH_WRONG_EXPRESSION = 152,
RS_FEED_ERRORSTATE_PROCESS_XPATH_NO_RESULT = 153,
RS_FEED_ERRORSTATE_PROCESS_XSLT_FORMAT_ERROR = 154,
RS_FEED_ERRORSTATE_PROCESS_XSLT_TRANSFORM_ERROR = 155,
RS_FEED_ERRORSTATE_PROCESS_XSLT_NO_RESULT = 156
};
enum RsFeedAddResult
{
RS_FEED_ADD_RESULT_SUCCESS,
RS_FEED_ADD_RESULT_FEED_NOT_FOUND,
RS_FEED_ADD_RESULT_PARENT_NOT_FOUND,
RS_FEED_ADD_RESULT_PARENT_IS_NO_FOLDER,
RS_FEED_ADD_RESULT_FEED_IS_FOLDER,
RS_FEED_ADD_RESULT_FEED_IS_NO_FOLDER
};
enum RsFeedTransformationType
{
RS_FEED_TRANSFORMATION_TYPE_NONE = 0,
RS_FEED_TRANSFORMATION_TYPE_XPATH = 1,
RS_FEED_TRANSFORMATION_TYPE_XSLT = 2
};
class FeedInfo
{
public:
enum WorkState
{
WAITING,
WAITING_TO_DOWNLOAD,
DOWNLOADING,
WAITING_TO_PROCESS,
PROCESSING
};
public:
FeedInfo()
{
proxyPort = 0;
updateInterval = 0;
lastUpdate = 0;
storageTime = 0;
errorState = RS_FEED_ERRORSTATE_OK;
flag.folder = false;
flag.infoFromFeed = false;
flag.standardStorageTime = false;
flag.standardUpdateInterval = false;
flag.standardProxy = false;
flag.authentication = false;
flag.deactivated = false;
flag.forum = false;
flag.updateForumInfo = false;
flag.embedImages = false;
flag.saveCompletePage = false;
flag.preview = false;
transformationType = RS_FEED_TRANSFORMATION_TYPE_NONE;
}
std::string feedId;
std::string parentId;
std::string url;
std::string name;
std::string description;
std::string icon;
std::string user;
std::string password;
std::string proxyAddress;
uint16_t proxyPort;
uint32_t updateInterval;
time_t lastUpdate;
uint32_t storageTime;
std::string forumId;
WorkState workstate;
RsFeedReaderErrorState errorState;
std::string errorString;
RsFeedTransformationType transformationType;
std::list<std::string> xpathsToUse;
std::list<std::string> xpathsToRemove;
std::string xslt;
struct {
bool folder : 1;
bool infoFromFeed : 1;
bool standardStorageTime : 1;
bool standardUpdateInterval : 1;
bool standardProxy : 1;
bool authentication : 1;
bool deactivated : 1;
bool forum : 1;
bool updateForumInfo : 1;
bool embedImages : 1;
bool saveCompletePage : 1;
bool preview : 1;
} flag;
};
class FeedMsgInfo
{
public:
FeedMsgInfo()
{
pubDate = 0;
flag.isnew = false;
flag.read = false;
flag.deleted = false;
}
std::string msgId;
std::string feedId;
std::string title;
std::string link;
std::string author;
std::string description;
std::string descriptionTransformed;
time_t pubDate;
struct {
bool isnew : 1;
bool read : 1;
bool deleted : 1;
} flag;
};
class RsFeedReaderNotify
{
public:
RsFeedReaderNotify() {}
virtual void notifyFeedChanged(const std::string &/*feedId*/, int /*type*/) {}
virtual void notifyMsgChanged(const std::string &/*feedId*/, const std::string &/*msgId*/, int /*type*/) {}
};
class RsFeedReader
{
public:
RsFeedReader() {}
virtual ~RsFeedReader() {}
virtual void stop() = 0;
virtual void setNotify(RsFeedReaderNotify *notify) = 0;
virtual uint32_t getStandardStorageTime() = 0;
virtual void setStandardStorageTime(uint32_t storageTime) = 0;
virtual uint32_t getStandardUpdateInterval() = 0;
virtual void setStandardUpdateInterval(uint32_t updateInterval) = 0;
virtual bool getStandardProxy(std::string &proxyAddress, uint16_t &proxyPort) = 0;
virtual void setStandardProxy(bool useProxy, const std::string &proxyAddress, uint16_t proxyPort) = 0;
virtual RsFeedAddResult addFolder(const std::string parentId, const std::string &name, std::string &feedId) = 0;
virtual RsFeedAddResult setFolder(const std::string &feedId, const std::string &name) = 0;
virtual RsFeedAddResult addFeed(const FeedInfo &feedInfo, std::string &feedId) = 0;
virtual RsFeedAddResult setFeed(const std::string &feedId, const FeedInfo &feedInfo) = 0;
virtual bool removeFeed(const std::string &feedId) = 0;
virtual bool addPreviewFeed(const FeedInfo &feedInfo, std::string &feedId) = 0;
virtual void getFeedList(const std::string &parentId, std::list<FeedInfo> &feedInfos) = 0;
virtual bool getFeedInfo(const std::string &feedId, FeedInfo &feedInfo) = 0;
virtual bool getMsgInfo(const std::string &feedId, const std::string &msgId, FeedMsgInfo &msgInfo) = 0;
virtual bool removeMsg(const std::string &feedId, const std::string &msgId) = 0;
virtual bool removeMsgs(const std::string &feedId, const std::list<std::string> &msgIds) = 0;
virtual bool getMessageCount(const std::string &feedId, uint32_t *msgCount, uint32_t *newCount, uint32_t *unreadCount) = 0;
virtual bool getFeedMsgList(const std::string &feedId, std::list<FeedMsgInfo> &msgInfos) = 0;
virtual bool getFeedMsgIdList(const std::string &feedId, std::list<std::string> &msgIds) = 0;
virtual bool processFeed(const std::string &feedId) = 0;
virtual bool setMessageRead(const std::string &feedId, const std::string &msgId, bool read) = 0;
virtual bool retransformMsg(const std::string &feedId, const std::string &msgId) = 0;
virtual RsFeedReaderErrorState processXPath(const std::list<std::string> &xpathsToUse, const std::list<std::string> &xpathsToRemove, std::string &description, std::string &errorString) = 0;
virtual RsFeedReaderErrorState processXslt(const std::string &xslt, std::string &description, std::string &errorString) = 0;
};
#endif