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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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30 const char *name; |
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31 const char *jid; |
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32 guint type; |
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33 enum imstatus status; |
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34 guint flags; |
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35 // list: user -> points to his group; group -> points to its users list |
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36 GSList *list; |
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37 } roster; |
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38 |
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39 |
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40 /* ### Variables ### */ |
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41 |
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42 static int hide_offline_buddies; |
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43 static GSList *groups; |
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44 GList *buddylist; |
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45 GList *current_buddy; |
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46 |
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47 #ifdef MCABBER_TESTUNIT |
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48 // Export groups for testing routines |
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49 GSList **pgroups = &groups; |
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50 #endif |
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51 |
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52 |
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53 /* ### Roster functions ### */ |
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54 |
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55 // Comparison function used to search in the roster (compares jids and types) |
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56 gint roster_compare_jid_type(roster *a, roster *b) { |
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57 if (! (a->type & b->type)) |
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58 return -1; // arbitrary (but should be != , of course) |
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59 return strcasecmp(a->jid, b->jid); |
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60 } |
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61 |
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62 // Comparison function used to sort the roster (by name) |
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63 gint roster_compare_name(roster *a, roster *b) { |
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64 return strcasecmp(a->name, b->name); |
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65 } |
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66 |
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67 // Finds a roster element (user, group, agent...), by jid or name |
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68 // If roster_type is 0, returns match of any type. |
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69 // Returns the roster GSList element, or NULL if jid/name not found |
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70 GSList *roster_find(const char *jidname, enum findwhat type, guint roster_type) |
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72
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71 { |
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72 GSList *sl_roster_elt = groups; |
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73 GSList *res; |
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74 roster sample; |
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75 GCompareFunc comp; |
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76 |
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77 if (!jidname) return NULL; |
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78 |
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79 if (!roster_type) |
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80 roster_type = ROSTER_TYPE_USER|ROSTER_TYPE_AGENT|ROSTER_TYPE_GROUP; |
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81 |
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82 sample.type = roster_type; |
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83 if (type == jidsearch) { |
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84 sample.jid = jidname; |
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85 comp = (GCompareFunc)&roster_compare_jid_type; |
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86 } else if (type == namesearch) { |
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87 sample.name = jidname; |
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88 comp = (GCompareFunc)&roster_compare_name; |
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89 } else |
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90 return NULL; // should not happen |
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91 |
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92 while (sl_roster_elt) { |
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93 roster *roster_elt = (roster*)sl_roster_elt->data; |
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94 if (roster_type & ROSTER_TYPE_GROUP) { |
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95 if ((type == namesearch) && !strcasecmp(jidname, roster_elt->name)) |
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96 return sl_roster_elt; |
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97 } else { |
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98 res = g_slist_find_custom(roster_elt->list, &sample, comp); |
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99 if (res) |
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100 return res; |
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101 } |
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102 sl_roster_elt = g_slist_next(sl_roster_elt); |
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103 } |
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104 return NULL; |
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105 } |
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106 |
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107 // Returns pointer to new group, or existing group with that name |
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108 GSList *roster_add_group(const char *name) |
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109 { |
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110 roster *roster_grp; |
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111 // #1 Check name doesn't already exist |
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112 if (!roster_find(name, namesearch, ROSTER_TYPE_GROUP)) { |
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113 // #2 Create the group node |
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114 roster_grp = g_new0(roster, 1); |
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115 roster_grp->name = g_strdup(name); |
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116 roster_grp->type = ROSTER_TYPE_GROUP; |
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117 // #3 Insert (sorted) |
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118 groups = g_slist_insert_sorted(groups, roster_grp, |
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119 (GCompareFunc)&roster_compare_name); |
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120 } |
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121 return roster_find(name, namesearch, ROSTER_TYPE_GROUP); |
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122 } |
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123 |
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124 // Returns a pointer to the new user, or existing user with that name |
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125 GSList *roster_add_user(const char *jid, const char *name, const char *group, |
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126 guint type) |
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127 { |
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128 roster *roster_usr; |
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129 roster *my_group; |
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130 GSList *slist; |
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131 |
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132 if ((type != ROSTER_TYPE_USER) && (type != ROSTER_TYPE_AGENT)) { |
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133 // XXX Error message? |
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134 return NULL; |
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135 } |
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136 |
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137 // Let's be arbitrary: default group has an empty name (""). |
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138 if (!group) group = ""; |
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139 |
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140 // #1 Check this user doesn't already exist |
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141 slist = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT); |
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142 if (slist) return slist; |
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143 // #2 add group if necessary |
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144 slist = roster_add_group(group); |
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145 if (!slist) return NULL; |
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146 my_group = (roster*)slist->data; |
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147 // #3 Create user node |
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148 roster_usr = g_new0(roster, 1); |
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149 roster_usr->jid = g_strdup(jid); |
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150 if (name) { |
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151 roster_usr->name = g_strdup(name); |
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152 } else { |
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153 gchar *p, *str = g_strdup(jid); |
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154 p = strstr(str, "/"); |
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155 if (p) *p = '\0'; |
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156 roster_usr->name = g_strdup(str); |
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157 g_free(str); |
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158 } |
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159 roster_usr->type = type; //ROSTER_TYPE_USER; |
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160 roster_usr->list = slist; // (my_group SList element) |
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161 // #4 Insert node (sorted) |
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162 my_group->list = g_slist_insert_sorted(my_group->list, roster_usr, |
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163 (GCompareFunc)&roster_compare_name); |
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164 return roster_find(jid, jidsearch, type); |
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165 } |
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166 |
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167 // Removes user (jid) from roster, frees allocated memory |
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168 void roster_del_user(const char *jid) |
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169 { |
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170 GSList *sl_user, *sl_group; |
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171 GSList **sl_group_listptr; |
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172 roster *roster_usr; |
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173 |
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174 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT); |
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175 if (sl_user == NULL) |
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176 return; |
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177 // Let's free memory (jid, name) |
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178 roster_usr = (roster*)sl_user->data; |
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179 if (roster_usr->jid) |
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180 g_free((gchar*)roster_usr->jid); |
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181 if (roster_usr->name) |
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182 g_free((gchar*)roster_usr->name); |
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183 |
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184 // That's a little complex, we need to dereference twice |
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185 sl_group = ((roster*)sl_user->data)->list; |
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186 sl_group_listptr = &((roster*)(sl_group->data))->list; |
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187 *sl_group_listptr = g_slist_delete_link(*sl_group_listptr, sl_user); |
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188 |
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189 // We need to rebuild the list |
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190 if (current_buddy) |
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191 buddylist_build(); |
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192 // TODO What we should do, too, is to check if the deleted node is |
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193 // current_buddy, in which case we could move current_buddy to the |
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194 // previous (or next) node. |
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195 } |
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196 |
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197 // Free all roster data. Call buddylist_build() to free the buddylist. |
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198 void roster_free(void) |
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199 { |
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200 GSList *sl_grp = groups; |
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201 |
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202 // Walk through groups |
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203 while (sl_grp) { |
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204 roster *roster_grp = (roster*)sl_grp->data; |
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205 GSList *sl_usr = roster_grp->list; |
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206 // Walk through this group users |
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207 while (sl_usr) { |
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208 roster *roster_usr = (roster*)sl_usr->data; |
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209 // Free name and jid |
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210 if (roster_usr->jid) |
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211 g_free((gchar*)roster_usr->jid); |
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212 if (roster_usr->name) |
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213 g_free((gchar*)roster_usr->name); |
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214 sl_usr = g_slist_next(sl_usr); |
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215 } |
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216 // Free group's users list |
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217 if (roster_grp->list) |
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218 g_slist_free(roster_grp->list); |
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219 // Free group's name and jid |
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220 if (roster_grp->jid) |
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221 g_free((gchar*)roster_grp->jid); |
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222 if (roster_grp->name) |
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223 g_free((gchar*)roster_grp->name); |
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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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236 void roster_setstatus(const char *jid, enum imstatus bstat) |
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237 { |
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238 GSList *sl_user; |
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239 roster *roster_usr; |
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240 |
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241 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT); |
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242 // If we can't find it, we add it |
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243 if (sl_user == NULL) |
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244 sl_user = roster_add_user(jid, NULL, NULL, ROSTER_TYPE_USER); |
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245 |
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246 roster_usr = (roster*)sl_user->data; |
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247 roster_usr->status = bstat; |
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248 } |
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249 |
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250 // roster_setflags() |
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251 // Set one or several flags to value (TRUE/FALSE) |
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252 void roster_setflags(const char *jid, guint flags, guint value) |
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253 { |
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254 GSList *sl_user; |
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255 roster *roster_usr; |
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256 |
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257 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT); |
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258 if (sl_user == NULL) |
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259 return; |
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260 |
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261 roster_usr = (roster*)sl_user->data; |
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262 if (value) |
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263 roster_usr->flags |= flags; |
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264 else |
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265 roster_usr->flags &= ~flags; |
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266 } |
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267 |
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268 // roster_msg_setflag() |
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269 // Set the ROSTER_FLAG_MSG to the given value for the given jid. |
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270 // It will update the buddy's group message flag. |
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271 void roster_msg_setflag(const char *jid, guint value) |
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272 { |
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273 GSList *sl_user; |
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274 roster *roster_usr, *roster_grp; |
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275 |
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276 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT); |
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277 if (sl_user == NULL) |
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278 return; |
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279 |
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280 roster_usr = (roster*)sl_user->data; |
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281 roster_grp = (roster*)roster_usr->list->data; |
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282 if (value) { |
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283 // Message flag is TRUE. This is easy, we just have to set both flags |
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284 // to TRUE... |
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285 roster_usr->flags |= ROSTER_FLAG_MSG; |
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286 roster_grp->flags |= ROSTER_FLAG_MSG; // group |
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287 } else { |
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288 // Message flag is FALSE. |
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289 guint msg = FALSE; |
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290 roster_usr->flags &= ~ROSTER_FLAG_MSG; |
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291 // For the group value we need to watch all buddies in this group; |
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292 // if one is flagged, then the group will be flagged. |
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293 // I will re-use sl_user and roster_usr here, as they aren't used |
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294 // anymore. |
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295 sl_user = roster_grp->list; |
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296 while (sl_user) { |
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297 roster_usr = (roster*)sl_user->data; |
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298 if (roster_usr->flags & ROSTER_FLAG_MSG) { |
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299 msg = TRUE; |
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300 break; |
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301 } |
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302 sl_user = g_slist_next(sl_user); |
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303 } |
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304 if (!msg) |
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305 roster_grp->flags &= ~ROSTER_FLAG_MSG; |
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306 else |
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307 roster_grp->flags |= ROSTER_FLAG_MSG; |
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308 // Actually the "else" part is useless, because the group |
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309 // ROSTER_FLAG_MSG should already be set... |
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310 } |
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311 } |
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312 |
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313 void roster_settype(const char *jid, guint type) |
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314 { |
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315 GSList *sl_user; |
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316 roster *roster_usr; |
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317 |
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318 if ((sl_user = roster_find(jid, jidsearch, 0)) == NULL) |
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319 return; |
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320 |
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321 roster_usr = (roster*)sl_user->data; |
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322 roster_usr->type = type; |
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323 } |
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324 |
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325 enum imstatus roster_getstatus(const char *jid) |
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326 { |
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327 GSList *sl_user; |
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328 roster *roster_usr; |
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329 |
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330 sl_user = roster_find(jid, jidsearch, ROSTER_TYPE_USER|ROSTER_TYPE_AGENT); |
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331 if (sl_user == NULL) |
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332 return offline; // Not in the roster, anyway... |
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333 |
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334 roster_usr = (roster*)sl_user->data; |
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335 return roster_usr->status; |
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336 } |
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337 |
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338 guint roster_gettype(const char *jid) |
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339 { |
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340 GSList *sl_user; |
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341 roster *roster_usr; |
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342 |
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343 if ((sl_user = roster_find(jid, jidsearch, 0)) == NULL) |
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344 return 0; |
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345 |
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346 roster_usr = (roster*)sl_user->data; |
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347 return roster_usr->type; |
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348 } |
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349 |
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350 inline guint roster_exists(const char *jidname, enum findwhat type, |
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351 guint roster_type) |
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352 { |
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353 if (roster_find(jidname, type, roster_type)) |
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354 return TRUE; |
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355 return FALSE; |
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356 } |
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357 |
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358 |
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359 /* ### BuddyList functions ### */ |
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360 |
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120
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361 // buddylist_set_hide_offline_buddies(hide) |
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362 // "hide" values: 1=hide 0=show_all -1=invert |
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120
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363 void buddylist_set_hide_offline_buddies(int hide) |
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364 { |
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365 if (hide < 0) // NEG (invert) |
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366 hide_offline_buddies = !hide_offline_buddies; |
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367 else if (hide == 0) // FALSE (don't hide) |
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368 hide_offline_buddies = 0; |
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369 else // TRUE (hide) |
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370 hide_offline_buddies = 1; |
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371 } |
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372 |
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120
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373 inline int buddylist_get_hide_offline_buddies(void) |
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374 { |
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375 return hide_offline_buddies; |
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376 } |
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377 |
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378 // buddylist_build() |
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379 // Creates the buddylist from the roster entries. |
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380 void buddylist_build(void) |
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381 { |
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382 GSList *sl_roster_elt = groups; |
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383 roster *roster_elt; |
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384 roster *roster_current_buddy = NULL; |
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385 int shrunk_group; |
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386 |
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387 // We need to remember which buddy is selected. |
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388 if (current_buddy) |
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389 roster_current_buddy = BUDDATA(current_buddy); |
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390 current_buddy = NULL; |
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391 |
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392 // Destroy old buddylist |
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393 if (buddylist) { |
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394 g_list_free(buddylist); |
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395 buddylist = NULL; |
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396 } |
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397 |
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398 // Create the new list |
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399 while (sl_roster_elt) { |
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400 GSList *sl_roster_usrelt; |
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401 roster *roster_usrelt; |
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147
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402 guint pending_group = FALSE; |
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403 roster_elt = (roster*) sl_roster_elt->data; |
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404 |
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405 // Add the group now unless hide_offline_buddies is set, |
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406 // in which case we'll add it only if an online buddy belongs to it. |
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147
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407 // We take care to keep the current_buddy in the list, too. |
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408 if (!hide_offline_buddies || roster_elt == roster_current_buddy) |
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409 buddylist = g_list_append(buddylist, roster_elt); |
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410 else |
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411 pending_group = TRUE; |
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412 |
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128
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413 shrunk_group = roster_elt->flags & ROSTER_FLAG_HIDE; |
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414 |
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415 sl_roster_usrelt = roster_elt->list; |
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416 while (sl_roster_usrelt) { |
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417 roster_usrelt = (roster*) sl_roster_usrelt->data; |
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418 |
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419 // Buddy will be added if either: |
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420 // - hide_offline_buddies is FALSE |
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421 // - buddy is not offline |
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422 // - buddy has a lock (for example the buddy window is currently open) |
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423 // - buddy has a pending (non-read) message |
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128
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424 // - group isn't hidden (shrunk) |
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147
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425 // - this is the current_buddy |
|
|
426 if (!hide_offline_buddies || roster_usrelt == roster_current_buddy || |
|
72
|
427 (buddy_getstatus((gpointer)roster_usrelt) != offline) || |
|
|
428 (buddy_getflags((gpointer)roster_usrelt) & |
|
|
429 (ROSTER_FLAG_LOCK | ROSTER_FLAG_MSG))) { |
|
|
430 // This user should be added. Maybe the group hasn't been added yet? |
|
147
|
431 if (pending_group && |
|
|
432 (hide_offline_buddies || roster_usrelt == roster_current_buddy)) { |
|
72
|
433 // It hasn't been done yet |
|
|
434 buddylist = g_list_append(buddylist, roster_elt); |
|
|
435 pending_group = FALSE; |
|
|
436 } |
|
|
437 // Add user |
|
128
|
438 // XXX Should we add the user if there is a message and |
|
|
439 // the group is shrunk? If so, we'd need to check LOCK flag too, |
|
|
440 // perhaps... |
|
|
441 if (!shrunk_group) |
|
|
442 buddylist = g_list_append(buddylist, roster_usrelt); |
|
72
|
443 } |
|
|
444 |
|
|
445 sl_roster_usrelt = g_slist_next(sl_roster_usrelt); |
|
|
446 } |
|
|
447 sl_roster_elt = g_slist_next(sl_roster_elt); |
|
|
448 } |
|
78
|
449 |
|
81
|
450 // Check if we can find our saved current_buddy... |
|
|
451 if (roster_current_buddy) |
|
|
452 current_buddy = g_list_find(buddylist, roster_current_buddy); |
|
78
|
453 // current_buddy initialization |
|
|
454 if (!current_buddy || (g_list_position(buddylist, current_buddy) == -1)) |
|
81
|
455 current_buddy = g_list_first(buddylist); |
|
128
|
456 // XXX Maybe we should set update_roster to TRUE there? |
|
72
|
457 } |
|
|
458 |
|
|
459 // buddy_hide_group(roster, hide) |
|
|
460 // "hide" values: 1=hide 0=show_all -1=invert |
|
|
461 void buddy_hide_group(gpointer rosterdata, int hide) |
|
|
462 { |
|
|
463 roster *roster = rosterdata; |
|
|
464 if (hide > 0) // TRUE (hide) |
|
|
465 roster->flags |= ROSTER_FLAG_HIDE; |
|
|
466 else if (hide < 0) // NEG (invert) |
|
|
467 roster->flags ^= ROSTER_FLAG_HIDE; |
|
|
468 else // FALSE (don't hide) |
|
|
469 roster->flags &= ~ROSTER_FLAG_HIDE; |
|
|
470 } |
|
|
471 |
|
|
472 const char *buddy_getjid(gpointer rosterdata) |
|
|
473 { |
|
|
474 roster *roster = rosterdata; |
|
|
475 return roster->jid; |
|
|
476 } |
|
|
477 |
|
|
478 const char *buddy_getname(gpointer rosterdata) |
|
|
479 { |
|
|
480 roster *roster = rosterdata; |
|
|
481 return roster->name; |
|
|
482 } |
|
|
483 |
|
166
|
484 // buddy_getgroup() |
|
|
485 // Returns a pointer on buddy's group. |
|
|
486 gpointer buddy_getgroup(gpointer rosterdata) |
|
|
487 { |
|
|
488 roster *roster = rosterdata; |
|
|
489 |
|
|
490 if (roster->type & ROSTER_TYPE_GROUP) |
|
|
491 return rosterdata; |
|
|
492 |
|
|
493 // This is a user |
|
|
494 return (gpointer)((GSList*)roster->list)->data; |
|
|
495 } |
|
|
496 |
|
72
|
497 guint buddy_gettype(gpointer rosterdata) |
|
|
498 { |
|
|
499 roster *roster = rosterdata; |
|
|
500 return roster->type; |
|
|
501 } |
|
|
502 |
|
|
503 enum imstatus buddy_getstatus(gpointer rosterdata) |
|
|
504 { |
|
|
505 roster *roster = rosterdata; |
|
|
506 return roster->status; |
|
|
507 } |
|
|
508 |
|
119
|
509 // buddy_setflags() |
|
|
510 // Set one or several flags to value (TRUE/FALSE) |
|
|
511 void buddy_setflags(gpointer rosterdata, guint flags, guint value) |
|
|
512 { |
|
|
513 roster *roster = rosterdata; |
|
|
514 if (value) |
|
|
515 roster->flags |= flags; |
|
|
516 else |
|
|
517 roster->flags &= ~flags; |
|
|
518 } |
|
|
519 |
|
72
|
520 guint buddy_getflags(gpointer rosterdata) |
|
|
521 { |
|
|
522 roster *roster = rosterdata; |
|
|
523 return roster->flags; |
|
|
524 } |
|
|
525 |
