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00024 #include "asterisk.h"
00025
00026 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 190059 $")
00027
00028 #include "asterisk/module.h"
00029 #include "asterisk/channel.h"
00030 #include "asterisk/pbx.h"
00031 #include "asterisk/utils.h"
00032 #include "asterisk/app.h"
00033
00034 static int group_count_function_read(struct ast_channel *chan, const char *cmd,
00035 char *data, char *buf, size_t len)
00036 {
00037 int count = -1;
00038 char group[80] = "", category[80] = "";
00039
00040 ast_app_group_split_group(data, group, sizeof(group), category,
00041 sizeof(category));
00042
00043
00044 if (ast_strlen_zero(group)) {
00045 struct ast_group_info *gi = NULL;
00046
00047 ast_app_group_list_rdlock();
00048 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, group_list)) {
00049 if (gi->chan != chan)
00050 continue;
00051 if (ast_strlen_zero(category) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))
00052 break;
00053 }
00054 if (gi) {
00055 ast_copy_string(group, gi->group, sizeof(group));
00056 if (!ast_strlen_zero(gi->category))
00057 ast_copy_string(category, gi->category, sizeof(category));
00058 }
00059 ast_app_group_list_unlock();
00060 }
00061
00062 if ((count = ast_app_group_get_count(group, category)) == -1)
00063 ast_log(LOG_NOTICE, "No group could be found for channel '%s'\n", chan->name);
00064 else
00065 snprintf(buf, len, "%d", count);
00066
00067 return 0;
00068 }
00069
00070 static struct ast_custom_function group_count_function = {
00071 .name = "GROUP_COUNT",
00072 .syntax = "GROUP_COUNT([groupname][@category])",
00073 .synopsis = "Counts the number of channels in the specified group",
00074 .desc =
00075 "Calculates the group count for the specified group, or uses the\n"
00076 "channel's current group if not specifed (and non-empty).\n",
00077 .read = group_count_function_read,
00078 };
00079
00080 static int group_match_count_function_read(struct ast_channel *chan,
00081 const char *cmd, char *data, char *buf,
00082 size_t len)
00083 {
00084 int count;
00085 char group[80] = "";
00086 char category[80] = "";
00087
00088 ast_app_group_split_group(data, group, sizeof(group), category,
00089 sizeof(category));
00090
00091 if (!ast_strlen_zero(group)) {
00092 count = ast_app_group_match_get_count(group, category);
00093 snprintf(buf, len, "%d", count);
00094 }
00095
00096 return 0;
00097 }
00098
00099 static struct ast_custom_function group_match_count_function = {
00100 .name = "GROUP_MATCH_COUNT",
00101 .syntax = "GROUP_MATCH_COUNT(groupmatch[@category])",
00102 .synopsis =
00103 "Counts the number of channels in the groups matching the specified pattern",
00104 .desc =
00105 "Calculates the group count for all groups that match the specified pattern.\n"
00106 "Uses standard regular expression matching (see regex(7)).\n",
00107 .read = group_match_count_function_read,
00108 .write = NULL,
00109 };
00110
00111 static int group_function_read(struct ast_channel *chan, const char *cmd,
00112 char *data, char *buf, size_t len)
00113 {
00114 struct ast_group_info *gi = NULL;
00115
00116 ast_app_group_list_rdlock();
00117
00118 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, group_list)) {
00119 if (gi->chan != chan)
00120 continue;
00121 if (ast_strlen_zero(data))
00122 break;
00123 if (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, data))
00124 break;
00125 }
00126
00127 if (gi)
00128 ast_copy_string(buf, gi->group, len);
00129
00130 ast_app_group_list_unlock();
00131
00132 return 0;
00133 }
00134
00135 static int group_function_write(struct ast_channel *chan, const char *cmd,
00136 char *data, const char *value)
00137 {
00138 char grpcat[256];
00139
00140 if (!ast_strlen_zero(data)) {
00141 snprintf(grpcat, sizeof(grpcat), "%s@%s", value, data);
00142 } else {
00143 ast_copy_string(grpcat, value, sizeof(grpcat));
00144 }
00145
00146 if (ast_app_group_set_channel(chan, grpcat))
00147 ast_log(LOG_WARNING,
00148 "Setting a group requires an argument (group name)\n");
00149
00150 return 0;
00151 }
00152
00153 static struct ast_custom_function group_function = {
00154 .name = "GROUP",
00155 .syntax = "GROUP([category])",
00156 .synopsis = "Gets or sets the channel group.",
00157 .desc = "Gets or sets the channel group.\n",
00158 .read = group_function_read,
00159 .write = group_function_write,
00160 };
00161
00162 static int group_list_function_read(struct ast_channel *chan, const char *cmd,
00163 char *data, char *buf, size_t len)
00164 {
00165 struct ast_group_info *gi = NULL;
00166 char tmp1[1024] = "";
00167 char tmp2[1024] = "";
00168
00169 if (!chan)
00170 return -1;
00171
00172 ast_app_group_list_rdlock();
00173
00174 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, group_list)) {
00175 if (gi->chan != chan)
00176 continue;
00177 if (!ast_strlen_zero(tmp1)) {
00178 ast_copy_string(tmp2, tmp1, sizeof(tmp2));
00179 if (!ast_strlen_zero(gi->category))
00180 snprintf(tmp1, sizeof(tmp1), "%s %s@%s", tmp2, gi->group, gi->category);
00181 else
00182 snprintf(tmp1, sizeof(tmp1), "%s %s", tmp2, gi->group);
00183 } else {
00184 if (!ast_strlen_zero(gi->category))
00185 snprintf(tmp1, sizeof(tmp1), "%s@%s", gi->group, gi->category);
00186 else
00187 snprintf(tmp1, sizeof(tmp1), "%s", gi->group);
00188 }
00189 }
00190
00191 ast_app_group_list_unlock();
00192
00193 ast_copy_string(buf, tmp1, len);
00194
00195 return 0;
00196 }
00197
00198 static struct ast_custom_function group_list_function = {
00199 .name = "GROUP_LIST",
00200 .syntax = "GROUP_LIST()",
00201 .synopsis = "Gets a list of the groups set on a channel.",
00202 .desc = "Gets a list of the groups set on a channel.\n",
00203 .read = group_list_function_read,
00204 .write = NULL,
00205 };
00206
00207 static int unload_module(void)
00208 {
00209 int res = 0;
00210
00211 res |= ast_custom_function_unregister(&group_count_function);
00212 res |= ast_custom_function_unregister(&group_match_count_function);
00213 res |= ast_custom_function_unregister(&group_list_function);
00214 res |= ast_custom_function_unregister(&group_function);
00215
00216 return res;
00217 }
00218
00219 static int load_module(void)
00220 {
00221 int res = 0;
00222
00223 res |= ast_custom_function_register(&group_count_function);
00224 res |= ast_custom_function_register(&group_match_count_function);
00225 res |= ast_custom_function_register(&group_list_function);
00226 res |= ast_custom_function_register(&group_function);
00227
00228 return res;
00229 }
00230
00231 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Channel group dialplan functions");