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00024 #include "asterisk.h"
00025
00026 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 146838 $")
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 ret = -1;
00038 int count = -1;
00039 char group[80] = "", category[80] = "";
00040
00041 ast_app_group_split_group(data, group, sizeof(group), category,
00042 sizeof(category));
00043
00044
00045 if (ast_strlen_zero(group)) {
00046 struct ast_group_info *gi = NULL;
00047
00048 ast_app_group_list_rdlock();
00049 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00050 if (gi->chan != chan)
00051 continue;
00052 if (ast_strlen_zero(category) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))
00053 break;
00054 }
00055 if (gi) {
00056 ast_copy_string(group, gi->group, sizeof(group));
00057 if (!ast_strlen_zero(gi->category))
00058 ast_copy_string(category, gi->category, sizeof(category));
00059 }
00060 ast_app_group_list_unlock();
00061 }
00062
00063 if ((count = ast_app_group_get_count(group, category)) == -1) {
00064 ast_log(LOG_NOTICE, "No group could be found for channel '%s'\n", chan->name);
00065 } else {
00066 snprintf(buf, len, "%d", count);
00067 ret = 0;
00068 }
00069
00070 return ret;
00071 }
00072
00073 static struct ast_custom_function group_count_function = {
00074 .name = "GROUP_COUNT",
00075 .syntax = "GROUP_COUNT([groupname][@category])",
00076 .synopsis = "Counts the number of channels in the specified group",
00077 .desc =
00078 "Calculates the group count for the specified group, or uses the\n"
00079 "channel's current group if not specifed (and non-empty).\n",
00080 .read = group_count_function_read,
00081 };
00082
00083 static int group_match_count_function_read(struct ast_channel *chan,
00084 const char *cmd, char *data, char *buf,
00085 size_t len)
00086 {
00087 int count;
00088 char group[80] = "";
00089 char category[80] = "";
00090
00091 ast_app_group_split_group(data, group, sizeof(group), category,
00092 sizeof(category));
00093
00094 if (!ast_strlen_zero(group)) {
00095 count = ast_app_group_match_get_count(group, category);
00096 snprintf(buf, len, "%d", count);
00097 return 0;
00098 }
00099
00100 return -1;
00101 }
00102
00103 static struct ast_custom_function group_match_count_function = {
00104 .name = "GROUP_MATCH_COUNT",
00105 .syntax = "GROUP_MATCH_COUNT(groupmatch[@category])",
00106 .synopsis =
00107 "Counts the number of channels in the groups matching the specified pattern",
00108 .desc =
00109 "Calculates the group count for all groups that match the specified pattern.\n"
00110 "Uses standard regular expression matching (see regex(7)).\n",
00111 .read = group_match_count_function_read,
00112 .write = NULL,
00113 };
00114
00115 static int group_function_read(struct ast_channel *chan, const char *cmd,
00116 char *data, char *buf, size_t len)
00117 {
00118 int ret = -1;
00119 struct ast_group_info *gi = NULL;
00120
00121 ast_app_group_list_rdlock();
00122
00123 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00124 if (gi->chan != chan)
00125 continue;
00126 if (ast_strlen_zero(data))
00127 break;
00128 if (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, data))
00129 break;
00130 }
00131
00132 if (gi) {
00133 ast_copy_string(buf, gi->group, len);
00134 ret = 0;
00135 }
00136
00137 ast_app_group_list_unlock();
00138
00139 return ret;
00140 }
00141
00142 static int group_function_write(struct ast_channel *chan, const char *cmd,
00143 char *data, const char *value)
00144 {
00145 char grpcat[256];
00146
00147 if (!ast_strlen_zero(data)) {
00148 snprintf(grpcat, sizeof(grpcat), "%s@%s", value, data);
00149 } else {
00150 ast_copy_string(grpcat, value, sizeof(grpcat));
00151 }
00152
00153 if (ast_app_group_set_channel(chan, grpcat))
00154 ast_log(LOG_WARNING,
00155 "Setting a group requires an argument (group name)\n");
00156
00157 return 0;
00158 }
00159
00160 static struct ast_custom_function group_function = {
00161 .name = "GROUP",
00162 .syntax = "GROUP([category])",
00163 .synopsis = "Gets or sets the channel group.",
00164 .desc = "Gets or sets the channel group.\n",
00165 .read = group_function_read,
00166 .write = group_function_write,
00167 };
00168
00169 static int group_list_function_read(struct ast_channel *chan, const char *cmd,
00170 char *data, char *buf, size_t len)
00171 {
00172 struct ast_group_info *gi = NULL;
00173 char tmp1[1024] = "";
00174 char tmp2[1024] = "";
00175
00176 if (!chan)
00177 return -1;
00178
00179 ast_app_group_list_rdlock();
00180
00181 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00182 if (gi->chan != chan)
00183 continue;
00184 if (!ast_strlen_zero(tmp1)) {
00185 ast_copy_string(tmp2, tmp1, sizeof(tmp2));
00186 if (!ast_strlen_zero(gi->category))
00187 snprintf(tmp1, sizeof(tmp1), "%s %s@%s", tmp2, gi->group, gi->category);
00188 else
00189 snprintf(tmp1, sizeof(tmp1), "%s %s", tmp2, gi->group);
00190 } else {
00191 if (!ast_strlen_zero(gi->category))
00192 snprintf(tmp1, sizeof(tmp1), "%s@%s", gi->group, gi->category);
00193 else
00194 snprintf(tmp1, sizeof(tmp1), "%s", gi->group);
00195 }
00196 }
00197
00198 ast_app_group_list_unlock();
00199
00200 ast_copy_string(buf, tmp1, len);
00201
00202 return 0;
00203 }
00204
00205 static struct ast_custom_function group_list_function = {
00206 .name = "GROUP_LIST",
00207 .syntax = "GROUP_LIST()",
00208 .synopsis = "Gets a list of the groups set on a channel.",
00209 .desc = "Gets a list of the groups set on a channel.\n",
00210 .read = group_list_function_read,
00211 .write = NULL,
00212 };
00213
00214 static int unload_module(void)
00215 {
00216 int res = 0;
00217
00218 res |= ast_custom_function_unregister(&group_count_function);
00219 res |= ast_custom_function_unregister(&group_match_count_function);
00220 res |= ast_custom_function_unregister(&group_list_function);
00221 res |= ast_custom_function_unregister(&group_function);
00222
00223 return res;
00224 }
00225
00226 static int load_module(void)
00227 {
00228 int res = 0;
00229
00230 res |= ast_custom_function_register(&group_count_function);
00231 res |= ast_custom_function_register(&group_match_count_function);
00232 res |= ast_custom_function_register(&group_list_function);
00233 res |= ast_custom_function_register(&group_function);
00234
00235 return res;
00236 }
00237
00238 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Channel group dialplan functions");