72
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1 /*
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2 * roster.c -- Local roster implementation
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3 *
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4 * Copyright (C) 2005 Mikael Berthe <bmikael@lists.lilotux.net>
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or (at
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9 * your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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19 * USA
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20 */
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21
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22 #include <string.h>
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23
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24 #include "roster.h"
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25
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26
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27 /* This is a private structure type for the roster */
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28
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29 typedef struct {
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207
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30 const gchar *name;
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31 const gchar *jid;
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221
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32 const gchar *status_msg;
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72
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33 guint type;
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34 enum imstatus status;
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35 guint flags;
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36 // list: user -> points to his group; group -> points to its users list
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37 GSList *list;
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38 } roster;
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39
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40
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41 /* ### Variables ### */
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42
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43 static int hide_offline_buddies;
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44 static GSList *groups;
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45 GList *buddylist;
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78
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46 GList *current_buddy;
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72
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47
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48 #ifdef MCABBER_TESTUNIT
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49 // Export groups for testing routines
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50 GSList **pgroups = &groups;
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51 #endif
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52
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53
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54 /* ### Roster functions ### */
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55
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56 // Comparison function used to search in the roster (compares jids and types)
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57 gint roster_compare_jid_type(roster *a, roster *b) {
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89
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58 if (! (a->type & b->type))
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72
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59 return -1; // arbitrary (but should be != , of course)
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60 return strcasecmp(a->jid, b->jid);
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61 }
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62
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63 // Comparison function used to sort the roster (by name)
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64 gint roster_compare_name(roster *a, roster *b) {
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65 return strcasecmp(a->name, b->name);
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66 }
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67
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68 // Finds a roster element (user, group, agent...), by jid or name
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89
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69 // If roster_type is 0, returns match of any type.
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72
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70 // Returns the roster GSList element, or NULL if jid/name not found
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78
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71 GSList *roster_find(const char *jidname, enum findwhat type, guint roster_type)
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72
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72 {
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73 GSList *sl_roster_elt = groups;
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74 GSList *res;
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75 roster sample;
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76 GCompareFunc comp;
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77
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192
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78 if (!jidname) return NULL;
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72
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79
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89
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80 if (!roster_type)
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81 roster_type = ROSTER_TYPE_USER|ROSTER_TYPE_AGENT|ROSTER_TYPE_GROUP;
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82
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72
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83 sample.type = roster_type;
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84 if (type == jidsearch) {
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85 sample.jid = jidname;
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86 comp = (GCompareFunc)&roster_compare_jid_type;
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87 } else if (type == namesearch) {
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88 sample.name = jidname;
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89 comp = (GCompareFunc)&roster_compare_name;
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90 } else
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91 return NULL; // should not happen
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92
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93 while (sl_roster_elt) {
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94 roster *roster_elt = (roster*)sl_roster_elt->data;
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95 if (roster_type & ROSTER_TYPE_GROUP) {
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96 if ((type == namesearch) && !strcasecmp(jidname, roster_elt->name))
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97 return sl_roster_elt;
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98 } else {
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99 res = g_slist_find_custom(roster_elt->list, &sample, comp);
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100 if (res)
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101 return res;
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102 }
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103 sl_roster_elt = g_slist_next(sl_roster_elt);
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104 }
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105 return NULL;
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106 }
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107
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108 // Returns pointer to new group, or existing group with that name
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78
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109 GSList *roster_add_group(const char *name)
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110 {
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111 roster *roster_grp;
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112 // #1 Check name doesn't already exist
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113 if (!roster_find(name, namesearch, ROSTER_TYPE_GROUP)) {
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114 // #2 Create the group node
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115 roster_grp = g_new0(roster, 1);
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116 roster_grp->name = g_strdup(name);
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117 roster_grp->type = ROSTER_TYPE_GROUP;
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118 // #3 Insert (sorted)
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119 groups = g_slist_insert_sorted(groups, roster_grp,
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120 (GCompareFunc)&roster_compare_name);
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121 }
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122 return roster_find(name, namesearch, ROSTER_TYPE_GROUP);
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123 }
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124
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125 // Returns a pointer to the new user, or existing user with that name
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126 GSList *roster_add_user(const char *jid, const char *name, const char *group,
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127 guint type)
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128 {
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129 roster *roster_usr;
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130 roster *my_group;
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131 GSList *slist;
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132
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133 if ((type != ROSTER_TYPE_USER) && (type != ROSTER_TYPE_AGENT)) {
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134 // XXX Error message?
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135 return NULL;
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136 }
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137
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78
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138 // Let's be arbitrary: default group has an empty name ("").
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139 if (!group) group = "";
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140
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72
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141 // #1 Check this user doesn't already exist
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192
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142 slist = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT);
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143 if (slist) return slist;
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144 // #2 add group if necessary
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145 slist = roster_add_group(group);
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146 if (!slist) return NULL;
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147 my_group = (roster*)slist->data;
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148 // #3 Create user node
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149 roster_usr = g_new0(roster, 1);
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150 roster_usr->jid = g_strdup(jid);
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78
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151 if (name) {
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152 roster_usr->name = g_strdup(name);
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153 } else {
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154 gchar *p, *str = g_strdup(jid);
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80
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155 p = strstr(str, "/");
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156 if (p) *p = '\0';
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157 roster_usr->name = g_strdup(str);
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158 g_free(str);
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159 }
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160 roster_usr->type = type; //ROSTER_TYPE_USER;
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161 roster_usr->list = slist; // (my_group SList element)
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162 // #4 Insert node (sorted)
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163 my_group->list = g_slist_insert_sorted(my_group->list, roster_usr,
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164 (GCompareFunc)&roster_compare_name);
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165 return roster_find(jid, jidsearch, type);
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166 }
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167
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168 // Removes user (jid) from roster, frees allocated memory
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78
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169 void roster_del_user(const char *jid)
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170 {
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171 GSList *sl_user, *sl_group;
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172 GSList **sl_group_listptr;
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173 roster *roster_usr;
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174
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89
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175 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT);
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176 if (sl_user == NULL)
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177 return;
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178 // Let's free memory (jid, name)
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179 roster_usr = (roster*)sl_user->data;
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221
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180 if (roster_usr->jid) g_free((gchar*)roster_usr->jid);
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181 if (roster_usr->name) g_free((gchar*)roster_usr->name);
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182 if (roster_usr->status_msg) g_free((gchar*)roster_usr->status_msg);
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210
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183 g_free(roster_usr);
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184
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185 // That's a little complex, we need to dereference twice
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186 sl_group = ((roster*)sl_user->data)->list;
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187 sl_group_listptr = &((roster*)(sl_group->data))->list;
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188 *sl_group_listptr = g_slist_delete_link(*sl_group_listptr, sl_user);
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78
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189
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190 // We need to rebuild the list
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191 if (current_buddy)
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192 buddylist_build();
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210
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193 // TODO What we could do, too, is to check if the deleted node is
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194 // current_buddy, in which case we could move current_buddy to the
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195 // previous (or next) node.
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196 }
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197
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210
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198 // Free all roster data and call buddylist_build() to free the buddylist.
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164
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199 void roster_free(void)
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200 {
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201 GSList *sl_grp = groups;
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202
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203 // Walk through groups
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204 while (sl_grp) {
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205 roster *roster_grp = (roster*)sl_grp->data;
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206 GSList *sl_usr = roster_grp->list;
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207 // Walk through this group users
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208 while (sl_usr) {
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209 roster *roster_usr = (roster*)sl_usr->data;
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210 // Free name and jid
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221
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211 if (roster_usr->jid) g_free((gchar*)roster_usr->jid);
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212 if (roster_usr->name) g_free((gchar*)roster_usr->name);
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213 if (roster_usr->status_msg) g_free((gchar*)roster_usr->status_msg);
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214
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214 g_free(roster_usr);
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164
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215 sl_usr = g_slist_next(sl_usr);
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216 }
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217 // Free group's users list
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218 if (roster_grp->list)
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219 g_slist_free(roster_grp->list);
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220 // Free group's name and jid
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221
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221 if (roster_grp->jid) g_free((gchar*)roster_grp->jid);
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222 if (roster_grp->name) g_free((gchar*)roster_grp->name);
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214
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223 g_free(roster_grp);
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164
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224 sl_grp = g_slist_next(sl_grp);
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225 }
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226 // Free groups list
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227 if (groups) {
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228 g_slist_free(groups);
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229 groups = NULL;
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230 // Update (i.e. free) buddylist
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231 if (buddylist)
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232 buddylist_build();
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233 }
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234 }
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235
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221
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236 void roster_setstatus(const char *jid, enum imstatus bstat,
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237 const char *status_msg)
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238 {
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239 GSList *sl_user;
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240 roster *roster_usr;
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241
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89
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242 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT);
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243 // If we can't find it, we add it
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244 if (sl_user == NULL)
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245 sl_user = roster_add_user(jid, NULL, NULL, ROSTER_TYPE_USER);
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246
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247 roster_usr = (roster*)sl_user->data;
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248 roster_usr->status = bstat;
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221
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249 if (roster_usr->status_msg) {
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250 g_free((gchar*)roster_usr->status_msg);
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251 roster_usr->status_msg = NULL;
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252 }
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253 if (status_msg)
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254 roster_usr->status_msg = g_strdup(status_msg);
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72
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255 }
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256
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78
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257 // roster_setflags()
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258 // Set one or several flags to value (TRUE/FALSE)
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80
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259 void roster_setflags(const char *jid, guint flags, guint value)
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78
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260 {
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261 GSList *sl_user;
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262 roster *roster_usr;
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263
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264 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT);
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265 if (sl_user == NULL)
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266 return;
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267
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268 roster_usr = (roster*)sl_user->data;
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269 if (value)
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270 roster_usr->flags |= flags;
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271 else
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272 roster_usr->flags &= ~flags;
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273 }
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148
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274
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275 // roster_msg_setflag()
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276 // Set the ROSTER_FLAG_MSG to the given value for the given jid.
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277 // It will update the buddy's group message flag.
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278 void roster_msg_setflag(const char *jid, guint value)
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279 {
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280 GSList *sl_user;
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281 roster *roster_usr, *roster_grp;
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282
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283 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT);
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284 if (sl_user == NULL)
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285 return;
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286
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287 roster_usr = (roster*)sl_user->data;
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288 roster_grp = (roster*)roster_usr->list->data;
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289 if (value) {
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290 // Message flag is TRUE. This is easy, we just have to set both flags
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291 // to TRUE...
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292 roster_usr->flags |= ROSTER_FLAG_MSG;
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293 roster_grp->flags |= ROSTER_FLAG_MSG; // group
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294 } else {
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295 // Message flag is FALSE.
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296 guint msg = FALSE;
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297 roster_usr->flags &= ~ROSTER_FLAG_MSG;
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298 // For the group value we need to watch all buddies in this group;
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299 // if one is flagged, then the group will be flagged.
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300 // I will re-use sl_user and roster_usr here, as they aren't used
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301 // anymore.
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302 sl_user = roster_grp->list;
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303 while (sl_user) {
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304 roster_usr = (roster*)sl_user->data;
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305 if (roster_usr->flags & ROSTER_FLAG_MSG) {
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306 msg = TRUE;
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307 break;
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308 }
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309 sl_user = g_slist_next(sl_user);
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310 }
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311 if (!msg)
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312 roster_grp->flags &= ~ROSTER_FLAG_MSG;
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313 else
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314 roster_grp->flags |= ROSTER_FLAG_MSG;
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315 // Actually the "else" part is useless, because the group
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316 // ROSTER_FLAG_MSG should already be set...
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317 }
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318 }
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319
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89
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320 void roster_settype(const char *jid, guint type)
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321 {
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322 GSList *sl_user;
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323 roster *roster_usr;
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324
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325 if ((sl_user = roster_find(jid, jidsearch, 0)) == NULL)
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326 return;
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327
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328 roster_usr = (roster*)sl_user->data;
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329 roster_usr->type = type;
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330 }
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331
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90
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332 enum imstatus roster_getstatus(const char *jid)
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333 {
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334 GSList *sl_user;
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335 roster *roster_usr;
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336
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337 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT);
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338 if (sl_user == NULL)
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339 return offline; // Not in the roster, anyway...
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340
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341 roster_usr = (roster*)sl_user->data;
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342 return roster_usr->status;
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343 }
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344
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89
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345 guint roster_gettype(const char *jid)
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346 {
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347 GSList *sl_user;
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348 roster *roster_usr;
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349
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350 if ((sl_user = roster_find(jid, jidsearch, 0)) == NULL)
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351 return 0;
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352
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353 roster_usr = (roster*)sl_user->data;
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354 return roster_usr->type;
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355 }
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356
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141
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357 inline guint roster_exists(const char *jidname, enum findwhat type,
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358 guint roster_type)
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359 {
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360 if (roster_find(jidname, type, roster_type))
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361 return TRUE;
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362 return FALSE;
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363 }
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364
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72
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365
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366 /* ### BuddyList functions ### */
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367
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120
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368 // buddylist_set_hide_offline_buddies(hide)
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72
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369 // "hide" values: 1=hide 0=show_all -1=invert
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120
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370 void buddylist_set_hide_offline_buddies(int hide)
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72
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371 {
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372 if (hide < 0) // NEG (invert)
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373 hide_offline_buddies = !hide_offline_buddies;
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374 else if (hide == 0) // FALSE (don't hide)
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375 hide_offline_buddies = 0;
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376 else // TRUE (hide)
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377 hide_offline_buddies = 1;
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378 }
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379
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120
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380 inline int buddylist_get_hide_offline_buddies(void)
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381 {
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382 return hide_offline_buddies;
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383 }
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384
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72
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385 // buddylist_build()
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386 // Creates the buddylist from the roster entries.
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387 void buddylist_build(void)
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388 {
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389 GSList *sl_roster_elt = groups;
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390 roster *roster_elt;
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81
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391 roster *roster_current_buddy = NULL;
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128
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392 int shrunk_group;
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72
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393
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81
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394 // We need to remember which buddy is selected.
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395 if (current_buddy)
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396 roster_current_buddy = BUDDATA(current_buddy);
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397 current_buddy = NULL;
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398
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72
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399 // Destroy old buddylist
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400 if (buddylist) {
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401 g_list_free(buddylist);
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402 buddylist = NULL;
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403 }
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404
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405 // Create the new list
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406 while (sl_roster_elt) {
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407 GSList *sl_roster_usrelt;
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408 roster *roster_usrelt;
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147
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409 guint pending_group = FALSE;
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72
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410 roster_elt = (roster*) sl_roster_elt->data;
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411
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412 // Add the group now unless hide_offline_buddies is set,
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413 // in which case we'll add it only if an online buddy belongs to it.
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147
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414 // We take care to keep the current_buddy in the list, too.
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415 if (!hide_offline_buddies || roster_elt == roster_current_buddy)
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72
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416 buddylist = g_list_append(buddylist, roster_elt);
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417 else
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147
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418 pending_group = TRUE;
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72
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419
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128
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420 shrunk_group = roster_elt->flags & ROSTER_FLAG_HIDE;
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421
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72
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422 sl_roster_usrelt = roster_elt->list;
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423 while (sl_roster_usrelt) {
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424 roster_usrelt = (roster*) sl_roster_usrelt->data;
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425
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426 // Buddy will be added if either:
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427 // - hide_offline_buddies is FALSE
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428 // - buddy is not offline
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429 // - buddy has a lock (for example the buddy window is currently open)
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430 // - buddy has a pending (non-read) message
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128
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431 // - group isn't hidden (shrunk)
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147
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432 // - this is the current_buddy
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433 if (!hide_offline_buddies || roster_usrelt == roster_current_buddy ||
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72
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434 (buddy_getstatus((gpointer)roster_usrelt) != offline) ||
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435 (buddy_getflags((gpointer)roster_usrelt) &
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436 (ROSTER_FLAG_LOCK | ROSTER_FLAG_MSG))) {
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437 // This user should be added. Maybe the group hasn't been added yet?
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147
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438 if (pending_group &&
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439 (hide_offline_buddies || roster_usrelt == roster_current_buddy)) {
|
72
|
440 // It hasn't been done yet
|
|
441 buddylist = g_list_append(buddylist, roster_elt);
|
|
442 pending_group = FALSE;
|
|
443 }
|
|
444 // Add user
|
128
|
445 // XXX Should we add the user if there is a message and
|
|
446 // the group is shrunk? If so, we'd need to check LOCK flag too,
|
|
447 // perhaps...
|
|
448 if (!shrunk_group)
|
|
449 buddylist = g_list_append(buddylist, roster_usrelt);
|
72
|
450 }
|
|
451
|
|
452 sl_roster_usrelt = g_slist_next(sl_roster_usrelt);
|
|
453 }
|
|
454 sl_roster_elt = g_slist_next(sl_roster_elt);
|
|
455 }
|
78
|
456
|
81
|
457 // Check if we can find our saved current_buddy...
|
|
458 if (roster_current_buddy)
|
|
459 current_buddy = g_list_find(buddylist, roster_current_buddy);
|
78
|
460 // current_buddy initialization
|
|
461 if (!current_buddy || (g_list_position(buddylist, current_buddy) == -1))
|
81
|
462 current_buddy = g_list_first(buddylist);
|
128
|
463 // XXX Maybe we should set update_roster to TRUE there?
|
72
|
464 }
|
|
465
|
|
466 // buddy_hide_group(roster, hide)
|
|
467 // "hide" values: 1=hide 0=show_all -1=invert
|
|
468 void buddy_hide_group(gpointer rosterdata, int hide)
|
|
469 {
|
207
|
470 roster *roster_usr = rosterdata;
|
72
|
471 if (hide > 0) // TRUE (hide)
|
207
|
472 roster_usr->flags |= ROSTER_FLAG_HIDE;
|
72
|
473 else if (hide < 0) // NEG (invert)
|
207
|
474 roster_usr->flags ^= ROSTER_FLAG_HIDE;
|
72
|
475 else // FALSE (don't hide)
|
207
|
476 roster_usr->flags &= ~ROSTER_FLAG_HIDE;
|
72
|
477 }
|
|
478
|
|
479 const char *buddy_getjid(gpointer rosterdata)
|
|
480 {
|
207
|
481 roster *roster_usr = rosterdata;
|
|
482 return roster_usr->jid;
|
|
483 }
|
|
484
|
210
|
485 // buddy_setgroup()
|
|
486 // Change the group of current buddy
|
|
487 //
|
|
488 // Warning! This function changes current_buddy!
|
|
489 // Warning! Old buddy is deleted, so you can't acces to its jid/name after
|
|
490 // calling this function.
|
|
491 void buddy_setgroup(gpointer rosterdata, char *newgroupname)
|
|
492 {
|
|
493 roster *roster_usr = rosterdata;
|
|
494 GSList **sl_group;
|
|
495 GSList *sl_clone;
|
|
496 roster *roster_clone;
|
|
497
|
|
498 // A group has no group :)
|
|
499 if (roster_usr->type & ROSTER_TYPE_GROUP) return;
|
|
500
|
|
501 // Remove the buddy from current group
|
|
502 sl_group = &((roster*)((GSList*)roster_usr->list)->data)->list;
|
|
503 *sl_group = g_slist_remove(*sl_group, rosterdata);
|
|
504
|
|
505 // Add the buddy to its new group; actually we "clone" this buddy...
|
|
506 sl_clone = roster_add_user(roster_usr->jid, roster_usr->name,
|
|
507 newgroupname, roster_usr->type);
|
|
508 roster_clone = (roster*)sl_clone->data;
|
|
509 roster_clone->status = roster_usr->status;
|
|
510 roster_clone->flags = roster_usr->flags;
|
|
511
|
|
512 // Free old buddy
|
221
|
513 if (roster_usr->jid) g_free((gchar*)roster_usr->jid);
|
|
514 if (roster_usr->name) g_free((gchar*)roster_usr->name);
|
|
515 if (roster_usr->status_msg) g_free((gchar*)roster_usr->status_msg);
|
210
|
516 g_free(roster_usr);
|
|
517
|
212
|
518 // If new new group is folded, the curren_buddy will be lost, and the
|
|
519 // chat window won't be correctly refreshed. So we make sure it isn't...
|
|
520 ((roster*)((GSList*)roster_clone->list)->data)->flags &= ~ROSTER_FLAG_HIDE;
|
|
521
|
|
522 // Little trick to have current_body pointing to the cloned buddy
|
|
523 buddylist = g_list_append(buddylist, roster_clone);
|
|
524 current_buddy = g_list_find(buddylist, roster_clone);
|
|
525
|
210
|
526 buddylist_build();
|
|
527 }
|
|
528
|
207
|
529 void buddy_setname(gpointer rosterdata, char *newname)
|
|
530 {
|
|
531 roster *roster_usr = rosterdata;
|
209
|
532 GSList **sl_group;
|
207
|
533
|
|
534 // TODO For groups, we need to check for unicity
|
|
535 // However, renaming a group boils down to moving all its buddies to
|
|
536 // another group, so calling this function is not really necessary...
|
|
537 if (roster_usr->type & ROSTER_TYPE_GROUP) return;
|
|
538
|
|
539 if (roster_usr->name) {
|
|
540 g_free((gchar*)roster_usr->name);
|
|
541 roster_usr->name = NULL;
|
|
542 }
|
|
543 if (newname)
|
|
544 roster_usr->name = g_strdup(newname);
|
209
|
545
|
|
546 // We need to resort the group list
|
|
547 sl_group = &((roster*)((GSList*)roster_usr->list)->data)->list;
|
|
548 *sl_group = g_slist_sort(*sl_group, (GCompareFunc)&roster_compare_name);
|
|
549
|
|
550 buddylist_build();
|
72
|
551 }
|
|
552
|
|
553 const char *buddy_getname(gpointer rosterdata)
|
|
554 {
|
207
|
555 roster *roster_usr = rosterdata;
|
|
556 return roster_usr->name;
|
|
557 }
|
|
558
|
|
559 // buddy_getgroupname()
|
|
560 // Returns a pointer on buddy's group name.
|
|
561 const char *buddy_getgroupname(gpointer rosterdata)
|
|
562 {
|
|
563 roster *roster_usr = rosterdata;
|
|
564
|
|
565 if (roster_usr->type & ROSTER_TYPE_GROUP)
|
|
566 return roster_usr->name;
|
|
567
|
|
568 // This is a user
|
|
569 return ((roster*)((GSList*)roster_usr->list)->data)->name;
|
72
|
570 }
|
|
571
|
166
|
572 // buddy_getgroup()
|
|
573 // Returns a pointer on buddy's group.
|
|
574 gpointer buddy_getgroup(gpointer rosterdata)
|
|
575 {
|
207
|
576 roster *roster_usr = rosterdata;
|
166
|
577
|
207
|
578 if (roster_usr->type & ROSTER_TYPE_GROUP)
|
166
|
579 return rosterdata;
|
|
580
|
|
581 // This is a user
|
207
|
582 return (gpointer)((GSList*)roster_usr->list)->data;
|
166
|
583 }
|
|
584
|
72
|
585 guint buddy_gettype(gpointer rosterdata)
|
|
586 {
|
207
|
587 roster *roster_usr = rosterdata;
|
|
588 return roster_usr->type;
|
72
|
589 }
|
|
590
|
|
591 enum imstatus buddy_getstatus(gpointer rosterdata)
|
|
592 {
|
207
|
593 roster *roster_usr = rosterdata;
|
|
594 return roster_usr->status;
|
72
|
595 }
|
|
596
|
221
|
597 const char *buddy_getstatusmsg(gpointer rosterdata)
|
|
598 {
|
|
599 roster *roster_usr = rosterdata;
|
|
600 return roster_usr->status_msg;
|
|
601 }
|
|
602
|
119
|
603 // buddy_setflags()
|
|
604 // Set one or several flags to value (TRUE/FALSE)
|
|
605 void buddy_setflags(gpointer rosterdata, guint flags, guint value)
|
|
606 {
|
207
|
607 roster *roster_usr = rosterdata;
|
119
|
608 if (value)
|
207
|
609 roster_usr->flags |= flags;
|
119
|
610 else
|
207
|
611 roster_usr->flags &= ~flags;
|
119
|
612 }
|
|
613
|
72
|
614 guint buddy_getflags(gpointer rosterdata)
|
|
615 {
|
207
|
616 roster *roster_usr = rosterdata;
|
|
617 return roster_usr->flags;
|
72
|
618 }
|
|
619
|