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/* |
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* roster.c -- Local roster implementation |
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* |
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* Copyright (C) 2005 Mikael Berthe <bmikael@lists.lilotux.net> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or (at |
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* 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, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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*/ |
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#include <string.h> |
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#include "roster.h" |
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/* This is a private structure type for the roster */ |
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typedef struct { |
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char *name; |
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char *jid; |
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guint type; |
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enum imstatus status; |
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guint flags; |
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// list: user -> points to his group; group -> points to its users list |
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GSList *list; |
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} roster; |
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/* ### Variables ### */ |
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static int hide_offline_buddies; |
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static GSList *groups; |
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GList *buddylist; |
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#ifdef MCABBER_TESTUNIT |
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// Export groups for testing routines |
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GSList **pgroups = &groups; |
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#endif |
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/* ### Roster functions ### */ |
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// Comparison function used to search in the roster (compares jids and types) |
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gint roster_compare_jid_type(roster *a, roster *b) { |
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if (a->type != b->type) |
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return -1; // arbitrary (but should be != , of course) |
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return strcasecmp(a->jid, b->jid); |
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} |
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// Comparison function used to sort the roster (by name) |
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gint roster_compare_name(roster *a, roster *b) { |
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return strcasecmp(a->name, b->name); |
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} |
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// Finds a roster element (user, group, agent...), by jid or name |
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// Returns the roster GSList element, or NULL if jid/name not found |
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GSList *roster_find(char *jidname, enum findwhat type, guint roster_type) |
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{ |
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GSList *sl_roster_elt = groups; |
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GSList *res; |
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roster sample; |
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GCompareFunc comp; |
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if (!jidname) |
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return NULL; // should not happen |
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sample.type = roster_type; |
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if (type == jidsearch) { |
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sample.jid = jidname; |
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comp = (GCompareFunc)&roster_compare_jid_type; |
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} else if (type == namesearch) { |
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sample.name = jidname; |
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comp = (GCompareFunc)&roster_compare_name; |
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} else |
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return NULL; // should not happen |
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while (sl_roster_elt) { |
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roster *roster_elt = (roster*)sl_roster_elt->data; |
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if (roster_type & ROSTER_TYPE_GROUP) { |
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if ((type == namesearch) && !strcasecmp(jidname, roster_elt->name)) |
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return sl_roster_elt; |
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} else { |
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res = g_slist_find_custom(roster_elt->list, &sample, comp); |
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if (res) |
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return res; |
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} |
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sl_roster_elt = g_slist_next(sl_roster_elt); |
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} |
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return NULL; |
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} |
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// Returns pointer to new group, or existing group with that name |
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GSList *roster_add_group(char *name) |
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{ |
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roster *roster_grp; |
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// #1 Check name doesn't already exist |
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if (!roster_find(name, namesearch, ROSTER_TYPE_GROUP)) { |
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// #2 Create the group node |
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roster_grp = g_new0(roster, 1); |
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roster_grp->name = g_strdup(name); |
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roster_grp->type = ROSTER_TYPE_GROUP; |
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// #3 Insert (sorted) |
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groups = g_slist_insert_sorted(groups, roster_grp, |
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(GCompareFunc)&roster_compare_name); |
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} |
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return roster_find(name, namesearch, ROSTER_TYPE_GROUP); |
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} |
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// Returns a pointer to the new user, or existing user with that name |
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GSList *roster_add_user(char *jid, char *name, char *group, guint type) |
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{ |
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roster *roster_usr; |
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roster *my_group; |
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GSList *slist; |
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if ((type != ROSTER_TYPE_USER) && (type != ROSTER_TYPE_AGENT)) { |
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// XXX Error message? |
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return NULL; |
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} |
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// #1 Check this user doesn't already exist |
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if ((slist = roster_find(jid, jidsearch, type)) != NULL) |
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return slist; |
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// #2 add group if necessary |
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slist = roster_add_group(group); |
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if (!slist) return NULL; |
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my_group = (roster*)slist->data; |
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// #3 Create user node |
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roster_usr = g_new0(roster, 1); |
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roster_usr->jid = g_strdup(jid); |
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roster_usr->name = g_strdup(name); |
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roster_usr->type = type; //ROSTER_TYPE_USER; |
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roster_usr->list = slist; // (my_group SList element) |
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// #4 Insert node (sorted) |
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my_group->list = g_slist_insert_sorted(my_group->list, roster_usr, |
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(GCompareFunc)&roster_compare_name); |
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return roster_find(jid, jidsearch, type); |
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} |
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// Removes user (jid) from roster, frees allocated memory |
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void roster_del_user(char *jid) |
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{ |
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GSList *sl_user, *sl_group; |
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GSList **sl_group_listptr; |
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roster *roster_usr; |
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if ((sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER)) == NULL) |
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return; |
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// Let's free memory (jid, name) |
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roster_usr = (roster*)sl_user->data; |
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if (roster_usr->jid) |
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g_free(roster_usr->jid); |
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if (roster_usr->name) |
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g_free(roster_usr->name); |
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// That's a little complex, we need to dereference twice |
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sl_group = ((roster*)sl_user->data)->list; |
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sl_group_listptr = &((roster*)(sl_group->data))->list; |
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*sl_group_listptr = g_slist_delete_link(*sl_group_listptr, sl_user); |
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} |
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void roster_setstatus(char *jid, enum imstatus bstat) |
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{ |
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GSList *sl_user; |
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roster *roster_usr; |
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if ((sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER)) == NULL) |
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return; |
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roster_usr = (roster*)sl_user->data; |
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roster_usr->status = bstat; |
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} |
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// char *roster_getgroup(...) / Or *GSList? Which use?? |
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// ... setgroup(char*) ?? |
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// guint roster_gettype(...) / settype |
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// guchar roster_getflags(...) / setflags |
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// guchar roster_getname(...) / setname ?? |
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// roster_del_group? |
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/* ### BuddyList functions ### */ |
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// buddylist_hide_offline_buddies(hide) |
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// "hide" values: 1=hide 0=show_all -1=invert |
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void buddylist_hide_offline_buddies(int hide) |
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{ |
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if (hide < 0) // NEG (invert) |
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hide_offline_buddies = !hide_offline_buddies; |
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else if (hide == 0) // FALSE (don't hide) |
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hide_offline_buddies = 0; |
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else // TRUE (hide) |
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hide_offline_buddies = 1; |
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} |
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// buddylist_build() |
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// Creates the buddylist from the roster entries. |
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void buddylist_build(void) |
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{ |
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GSList *sl_roster_elt = groups; |
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roster *roster_elt; |
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int pending_group; |
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// Destroy old buddylist |
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if (buddylist) { |
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g_list_free(buddylist); |
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buddylist = NULL; |
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} |
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// Create the new list |
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while (sl_roster_elt) { |
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GSList *sl_roster_usrelt; |
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roster *roster_usrelt; |
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roster_elt = (roster*) sl_roster_elt->data; |
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// Add the group now unless hide_offline_buddies is set, |
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// in which case we'll add it only if an online buddy belongs to it. |
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if (!hide_offline_buddies) |
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buddylist = g_list_append(buddylist, roster_elt); |
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else |
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pending_group = TRUE; |
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sl_roster_usrelt = roster_elt->list; |
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while (sl_roster_usrelt) { |
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roster_usrelt = (roster*) sl_roster_usrelt->data; |
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// Buddy will be added if either: |
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// - hide_offline_buddies is FALSE |
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// - buddy is not offline |
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// - buddy has a lock (for example the buddy window is currently open) |
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// - buddy has a pending (non-read) message |
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if (!hide_offline_buddies || |
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(buddy_getstatus((gpointer)roster_usrelt) != offline) || |
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(buddy_getflags((gpointer)roster_usrelt) & |
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(ROSTER_FLAG_LOCK | ROSTER_FLAG_MSG))) { |
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// This user should be added. Maybe the group hasn't been added yet? |
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if (hide_offline_buddies && pending_group) { |
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// It hasn't been done yet |
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buddylist = g_list_append(buddylist, roster_elt); |
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pending_group = FALSE; |
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} |
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// Add user |
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buddylist = g_list_append(buddylist, roster_usrelt); |
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} |
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sl_roster_usrelt = g_slist_next(sl_roster_usrelt); |
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} |
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sl_roster_elt = g_slist_next(sl_roster_elt); |
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} |
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} |
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// buddy_hide_group(roster, hide) |
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// "hide" values: 1=hide 0=show_all -1=invert |
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void buddy_hide_group(gpointer rosterdata, int hide) |
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{ |
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roster *roster = rosterdata; |
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if (hide > 0) // TRUE (hide) |
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roster->flags |= ROSTER_FLAG_HIDE; |
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else if (hide < 0) // NEG (invert) |
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roster->flags ^= ROSTER_FLAG_HIDE; |
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else // FALSE (don't hide) |
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roster->flags &= ~ROSTER_FLAG_HIDE; |
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} |
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const char *buddy_getjid(gpointer rosterdata) |
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{ |
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roster *roster = rosterdata; |
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return roster->jid; |
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} |
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const char *buddy_getname(gpointer rosterdata) |
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{ |
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roster *roster = rosterdata; |
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return roster->name; |
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} |
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guint buddy_gettype(gpointer rosterdata) |
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{ |
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roster *roster = rosterdata; |
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return roster->type; |
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} |
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enum imstatus buddy_getstatus(gpointer rosterdata) |
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{ |
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roster *roster = rosterdata; |
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return roster->status; |
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} |
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guint buddy_getflags(gpointer rosterdata) |
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{ |
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roster *roster = rosterdata; |
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return roster->flags; |
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} |
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