pjs/lib/libmsg/newshost.h

363 строки
13 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef __msg_NewsHost__
#define __msg_NewsHost__ 1
#include "msghost.h"
#include "xp_hash.h"
#include "ptrarray.h"
class MSG_FolderInfo;
class MSG_FolderInfoNews;
class MSG_Master;
class msg_GroupRecord;
class MSG_FolderInfoCategoryContainer;
class MSG_NewsHost : public MSG_Host {
public:
MSG_NewsHost(MSG_Master* master, const char* name, XP_Bool secure,
int32 port);
virtual ~MSG_NewsHost();
virtual XP_Bool IsNews () { return TRUE; }
virtual MSG_NewsHost *GetNewsHost() { return this; }
void addNew(MSG_GroupName* group);
void ClearNew();
virtual void dump();
virtual int32 getPort();
virtual XP_Bool isSecure();
time_t getLastUpdate();
void setLastUpdate(time_t date);
// Return the name of this newshost.
const char* getStr();
// Returns the name of this newshost, possibly followed by ":<port>" if
// the port number for this newshost is not the default.
const char* getNameAndPort();
// Returns a fully descriptive name for this newshost, including the
// above ":<port>" and also possibly a trailing (and localized) " (secure)"
virtual const char* getFullUIName();
// Go load the newsrc for this host. Creates the subscribed hosts as
// children of the given MSG_FolderInfo.
int LoadNewsrc(MSG_FolderInfo* hostinfo);
// Get the MSG_FolderInfo which represents this host; the children
// of this MSG_FolderInfo are the groups in this host.
MSG_FolderInfo* GetHostInfo() {return m_hostinfo;}
// Write out the newsrc for this host right now. In general, either
// MarkDirty() or WriteIfDirty() should be called instead.
int WriteNewsrc();
// Write out the newsrc for this host right now, if anything has changed
// in it.
int WriteIfDirty();
// Note that something has changed, and we need to rewrite the newsrc file
// for this host at some point.
void MarkDirty();
const char* GetNewsrcFileName();
int SetNewsrcFileName(const char* name);
MSG_Master* GetMaster() {
return m_master;
}
MSG_FolderInfoNews* FindGroup(const char* name);
MSG_FolderInfoNews *AddGroup(const char *groupName);
void RemoveGroup(const char* groupName);
void RemoveGroup(MSG_FolderInfoNews*);
const char* GetDBDirName(); // Name of directory to store newsgroup
// databases in. This needs to have
// "/groupname" appended to it, and the
// whole thing can be passed to the XP_File
// stuff with a type of xpXoverCache.
// GetNumGroupsNeedingCounts() returns how many newsgroups we have
// that we don't have an accurate count of unread/total articles.
int32 GetNumGroupsNeedingCounts();
// GetFirstGroupNeedingCounts() returns the name of the first newsgroup
// that does not have an accurate count of unread/total articles. The
// string must be free'd by the caller using XP_FREE().
char* GetFirstGroupNeedingCounts();
// GetFirstGroupNeedingExtraInfo() returns the name of the first newsgroup
// that does not have extra info (xactive flags and prettyname). The
// string must be free'd by the caller using XP_FREE().
char* GetFirstGroupNeedingExtraInfo();
char** GetGroupList(); // Returns a list of newsgroups. The result
// must be free'd using XP_FREE(); the
// individual strings must not be free'd.
void SetWantNewTotals(XP_Bool value); // Sets this bit on every newsgroup
// in this host.
XP_Bool NeedsExtension (const char *ext);
void AddExtension (const char *ext);
XP_Bool QueryExtension (const char *ext);
void AddSearchableGroup (const char *group);
XP_Bool QuerySearchableGroup (const char *group);
const char *QuerySearchableGroupCharsets(const char *group);
void AddSearchableHeader (const char *header);
XP_Bool QuerySearchableHeader (const char *header);
void AddPropertyForGet (const char *property, const char *value);
const char *QueryPropertyForGet (const char *property);
void SetPostingAllowed (XP_Bool allowed) { m_postingAllowed = allowed; }
XP_Bool GetPostingAllowed() { return m_postingAllowed; }
void SetSupportsExtensions (XP_Bool isSupported)
{ m_supportsExtensions = isSupported; }
XP_Bool GetSupportsExtensions () { return m_supportsExtensions; }
XP_Bool GetPushAuth() { return m_pushAuth; }
void SetPushAuth(XP_Bool pushAuth);
// Returns the base part of the URL for this newshost, in the
// form "news://hostname:port" or "snews://hostname:port".
// Note that no trailing slash is appended, and that the
// ":port" part will be omitted if this host uses the default
// port.
const char* GetURLBase();
XP_Bool GetEverExpanded() {return m_everexpanded;}
void SetEverExpanded(XP_Bool value) {m_everexpanded = value;}
XP_Bool GetCheckedForNew() {return m_checkedForNew;}
void SetCheckedForNew(XP_Bool value) {m_checkedForNew = value;}
void SetGroupSucceeded(XP_Bool value) {m_groupSucceeded = value;}
// Completely obliterate this news host. Remove all traces of it from
// disk and memory.
int RemoveHost();
// Returns the pretty name for the given group. The resulting string
// must be free'd using delete[].
char* GetPrettyName(const char* groupname);
int SetPrettyName(const char* groupname, const char* prettyname);
time_t GetAddTime(const char* groupname);
// Returns a unique integer associated with this newsgroup. This is
// mostly used by Win16 to generate a 8.3 filename.
int32 GetUniqueID(const char* groupname);
XP_Bool IsCategory(const char* groupname);
XP_Bool IsCategoryContainer(const char* groupname);
int SetIsCategoryContainer(const char* groupname, XP_Bool value);
int SetGroupNeedsExtraInfo(const char *groupname, XP_Bool value);
// Finds the container newsgroup for this category (or NULL if this isn't
// a category). The resulting string must be free'd using delete[].
char* GetCategoryContainer(const char* groupname);
MSG_FolderInfoNews *GetCategoryContainerFolderInfo(const char *groupname);
// Get/Set whether this is a virtual newsgroup.
XP_Bool IsProfile(const char* groupname);
int SetIsProfile(const char* groupname, XP_Bool value);
// Get/Set whether this is a real group (as opposed to a container of
// other groups, like "mcom".)
XP_Bool IsGroup(const char* groupname);
int SetIsGroup(const char* groupname, XP_Bool value);
// Returns TRUE if it's OK to post HTML in this group (either because the
// bit is on for this group, or one of this group's ancestor's has marked
// all of its descendents as being OK for HTML.)
XP_Bool IsHTMLOk(const char* groupname);
// Get/Set if it's OK to post HTML in just this group.
XP_Bool IsHTMLOKGroup(const char* groupname);
int SetIsHTMLOKGroup(const char* groupname, XP_Bool value);
// Get/Set if it's OK to post HTML in this group and all of its subgroups.
XP_Bool IsHTMLOKTree(const char* groupname);
int SetIsHTMLOKTree(const char* groupname, XP_Bool value);
// Create the given group (if not already present). Returns 0 if the
// group is already present, 1 if we had to create it, negative on error.
// The given group will have the "isgroup" bit set on it (in other words,
// it is not to be just a container of other groups, like "mcom" is.)
int NoticeNewGroup(const char* groupname);
// Makes sure that we have records in memory for all known descendants
// of the given newsgroup.
int AssureAllDescendentsLoaded(msg_GroupRecord* group);
int SaveHostInfo();
// Suck the entire hostinfo file into memory. If force is TRUE, then throw
// away whatever we had in memory first.
int Inhale(XP_Bool force = FALSE);
// If we inhale'd, then write thing out to the file and free up the
// memory.
int Exhale();
// Inhale, but make believe the file is empty. In other words, set the
// inhaled bit, but empty out the memory.
int EmptyInhale();
msg_GroupRecord* GetGroupTree() {return m_groupTree;}
time_t GetFirstNewDate() {return m_firstnewdate;}
void GroupNotFound(const char *groupName, XP_Bool opening);
int ReorderGroup (MSG_FolderInfoNews *groupToMove, MSG_FolderInfoNews *groupToMoveBefore, int32 *newIdx);
protected:
void OpenGroupFile(const XP_FilePerm permissions = XP_FILE_UPDATE_BIN);
int32 RememberLine(char* line);
static int32 ProcessLine_s(char* line, uint32 line_size, void* closure);
int32 ProcessLine(char* line, uint32 line_size);
static void WriteTimer(void* closure);
int CreateFileHeader();
int ReadInitialPart();
msg_GroupRecord* FindGroupInBlock(msg_GroupRecord* parent,
const char* groupname,
int32* comp);
msg_GroupRecord* LoadSingleEntry(msg_GroupRecord* parent,
const char* groupname,
int32 min, int32 max);
static int32 InhaleLine(char* line, uint32 length, void* closure);
msg_GroupRecord* FindOrCreateGroup(const char* groupname,
int* statusOfMakingGroup = NULL);
MSG_FolderInfoNews *SwitchNewsToCategoryContainer(MSG_FolderInfoNews *newsInfo);
MSG_FolderInfoNews *SwitchCategoryContainerToNews(MSG_FolderInfoCategoryContainer *catContainerInfo);
char* m_hostname;
int32 m_port;
XP_Bool m_secure;
char* m_nameAndPort;
char* m_fullUIName;
MSG_FolderArray* m_groups; // List of MSG_FolderInfoNews* objects.
MSG_Master* m_master;
MSG_FolderInfo* m_hostinfo; // Object representing entire newshost in
// tree.
char* m_optionLines;
char* m_filename; /* The name of the newsrc file associated with
this host. This will be of the form:
"" meaning .newsrc or .snewsrc
HOST meaning .newsrc-HOST
HOST:PORT meaning .newsrc-HOST:PORT
Whether it begins with .newsrc or .snewsrc
depends on the secure_p slot (we pass one of
the types xpNewsRC or xpSNewsRC to xp_file.)
The reason this is not simply derived from
the host_name and port slots is that it's
not a 1:1 mapping; if the user has a file
called "newsrc", we will use that for the
default host (the "" name.) Likewise,
".newsrc-H" and ".newsrc-H:119" are
ambiguous.
*/
char* m_dbfilename;
XP_Bool m_dirty;
XP_Bool m_supportsExtensions;
void* m_writetimer;
char* m_urlbase;
XP_Bool m_everexpanded; // Whether the user ever opened up this
// newshost this session.
XP_Bool m_checkedForNew; // Whether we've checked for new newgroups
// in this newshost this session.
XP_Bool m_groupSucceeded; // Whether a group command has succeeded this
// session, protect against server bustage
// where it says no group exists.
XPPtrArray m_supportedExtensions;
XPPtrArray m_searchableGroups;
XPPtrArray m_searchableHeaders;
// ### mwelch Added to determine what charsets can be used
// for each table.
XP_HashTable m_searchableGroupCharsets;
XPPtrArray m_propertiesForGet;
XPPtrArray m_valuesForGet;
XP_Bool m_postingAllowed;
XP_Bool m_pushAuth; // TRUE if we should volunteer authentication without a
// challenge
time_t m_lastgroupdate;
time_t m_firstnewdate;
msg_GroupRecord* m_groupTree; // Tree of groups we're remembering.
XP_Bool m_inhaled; // Whether we inhaled the entire list of
// groups, or just some.
int m_groupTreeDirty; // Whether the group tree is dirty. If 0, then
// we don't need to write anything. If 1, then
// we can write things in place. If >1, then
// we need to rewrite the whole tree file.
char* m_hostinfofilename; // Filename of the hostinfo file.
static MSG_NewsHost* M_FileOwner; // In an effort to save file descriptors,
// only one newshost ever has its
// hostinfo file opened. This is the
// one.
XP_File m_groupFile; // File handle to the hostinfo file.
char* m_groupFilePermissions; // Permissions used to create the above
// file handle.
char* m_block; // A block of text read from the hostinfo file.
int32 m_blockSize; // How many bytes allocated in m_block.
int32 m_blockStart; // Where in the file we read the data that is
// currently sitting in m_block.
int32 m_fileStart; // Where in the file the actual newsgroup data
// starts.
int32 m_fileSize; // Total number of bytes in the hostinfo file.
int32 m_uniqueId; // Unique number assigned to each newsgroup.
};
#endif /* __msg_NewsHost__ */