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00023 #include "asterisk.h"
00024
00025 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 232268 $")
00026
00027 #include <stdlib.h>
00028 #include <stdio.h>
00029 #include <string.h>
00030 #include <sys/types.h>
00031
00032 #include "asterisk/module.h"
00033 #include "asterisk/channel.h"
00034 #include "asterisk/pbx.h"
00035 #include "asterisk/logger.h"
00036 #include "asterisk/utils.h"
00037 #include "asterisk/app.h"
00038
00039 static int group_count_function_read(struct ast_channel *chan, char *cmd,
00040 char *data, char *buf, size_t len)
00041 {
00042 int ret = -1;
00043 int count = -1;
00044 char group[80] = "", category[80] = "";
00045
00046 ast_app_group_split_group(data, group, sizeof(group), category,
00047 sizeof(category));
00048
00049
00050 if (ast_strlen_zero(group)) {
00051 struct ast_group_info *gi = NULL;
00052
00053 ast_app_group_list_lock();
00054 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00055 if (gi->chan != chan)
00056 continue;
00057 if (ast_strlen_zero(category) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))
00058 break;
00059 }
00060 if (gi) {
00061 ast_copy_string(group, gi->group, sizeof(group));
00062 if (!ast_strlen_zero(gi->category))
00063 ast_copy_string(category, gi->category, sizeof(category));
00064 }
00065 ast_app_group_list_unlock();
00066 }
00067
00068 if ((count = ast_app_group_get_count(group, category)) == -1) {
00069 ast_log(LOG_NOTICE, "No group could be found for channel '%s'\n", chan->name);
00070 } else {
00071 snprintf(buf, len, "%d", count);
00072 ret = 0;
00073 }
00074
00075 return ret;
00076 }
00077
00078 static struct ast_custom_function group_count_function = {
00079 .name = "GROUP_COUNT",
00080 .syntax = "GROUP_COUNT([groupname][@category])",
00081 .synopsis = "Counts the number of channels in the specified group",
00082 .desc =
00083 "Calculates the group count for the specified group, or uses the\n"
00084 "channel's current group if not specifed (and non-empty).\n",
00085 .read = group_count_function_read,
00086 };
00087
00088 static int group_match_count_function_read(struct ast_channel *chan,
00089 char *cmd, char *data, char *buf,
00090 size_t len)
00091 {
00092 int count;
00093 char group[80] = "";
00094 char category[80] = "";
00095
00096 ast_app_group_split_group(data, group, sizeof(group), category,
00097 sizeof(category));
00098
00099 if (!ast_strlen_zero(group)) {
00100 count = ast_app_group_match_get_count(group, category);
00101 snprintf(buf, len, "%d", count);
00102 return 0;
00103 }
00104
00105 return -1;
00106 }
00107
00108 static struct ast_custom_function group_match_count_function = {
00109 .name = "GROUP_MATCH_COUNT",
00110 .syntax = "GROUP_MATCH_COUNT(groupmatch[@category])",
00111 .synopsis =
00112 "Counts the number of channels in the groups matching the specified pattern",
00113 .desc =
00114 "Calculates the group count for all groups that match the specified pattern.\n"
00115 "Uses standard regular expression matching (see regex(7)).\n",
00116 .read = group_match_count_function_read,
00117 .write = NULL,
00118 };
00119
00120 static int group_function_read(struct ast_channel *chan, char *cmd,
00121 char *data, char *buf, size_t len)
00122 {
00123 int ret = -1;
00124 struct ast_group_info *gi = NULL;
00125
00126 ast_app_group_list_lock();
00127
00128 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00129 if (gi->chan != chan)
00130 continue;
00131 if (ast_strlen_zero(data))
00132 break;
00133 if (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, data))
00134 break;
00135 }
00136
00137 if (gi) {
00138 ast_copy_string(buf, gi->group, len);
00139 ret = 0;
00140 }
00141
00142 ast_app_group_list_unlock();
00143
00144 return ret;
00145 }
00146
00147 static int group_function_write(struct ast_channel *chan, char *cmd,
00148 char *data, const char *value)
00149 {
00150 char grpcat[256];
00151
00152 if (!value) {
00153 return -1;
00154 }
00155
00156 if (!ast_strlen_zero(data)) {
00157 snprintf(grpcat, sizeof(grpcat), "%s@%s", value, data);
00158 } else {
00159 ast_copy_string(grpcat, value, sizeof(grpcat));
00160 }
00161
00162 if (ast_app_group_set_channel(chan, grpcat))
00163 ast_log(LOG_WARNING,
00164 "Setting a group requires an argument (group name)\n");
00165
00166 return 0;
00167 }
00168
00169 static struct ast_custom_function group_function = {
00170 .name = "GROUP",
00171 .syntax = "GROUP([category])",
00172 .synopsis = "Gets or sets the channel group.",
00173 .desc = "Gets or sets the channel group.\n",
00174 .read = group_function_read,
00175 .write = group_function_write,
00176 };
00177
00178 static int group_list_function_read(struct ast_channel *chan, char *cmd,
00179 char *data, char *buf, size_t len)
00180 {
00181 struct ast_group_info *gi = NULL;
00182 char tmp1[1024] = "";
00183 char tmp2[1024] = "";
00184
00185 if (!chan)
00186 return -1;
00187
00188 ast_app_group_list_lock();
00189
00190 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00191 if (gi->chan != chan)
00192 continue;
00193 if (!ast_strlen_zero(tmp1)) {
00194 ast_copy_string(tmp2, tmp1, sizeof(tmp2));
00195 if (!ast_strlen_zero(gi->category))
00196 snprintf(tmp1, sizeof(tmp1), "%s %s@%s", tmp2, gi->group, gi->category);
00197 else
00198 snprintf(tmp1, sizeof(tmp1), "%s %s", tmp2, gi->group);
00199 } else {
00200 if (!ast_strlen_zero(gi->category))
00201 snprintf(tmp1, sizeof(tmp1), "%s@%s", gi->group, gi->category);
00202 else
00203 snprintf(tmp1, sizeof(tmp1), "%s", gi->group);
00204 }
00205 }
00206
00207 ast_app_group_list_unlock();
00208
00209 ast_copy_string(buf, tmp1, len);
00210
00211 return 0;
00212 }
00213
00214 static struct ast_custom_function group_list_function = {
00215 .name = "GROUP_LIST",
00216 .syntax = "GROUP_LIST()",
00217 .synopsis = "Gets a list of the groups set on a channel.",
00218 .desc = "Gets a list of the groups set on a channel.\n",
00219 .read = group_list_function_read,
00220 .write = NULL,
00221 };
00222
00223 static int unload_module(void)
00224 {
00225 int res = 0;
00226
00227 res |= ast_custom_function_unregister(&group_count_function);
00228 res |= ast_custom_function_unregister(&group_match_count_function);
00229 res |= ast_custom_function_unregister(&group_list_function);
00230 res |= ast_custom_function_unregister(&group_function);
00231
00232 return res;
00233 }
00234
00235 static int load_module(void)
00236 {
00237 int res = 0;
00238
00239 res |= ast_custom_function_register(&group_count_function);
00240 res |= ast_custom_function_register(&group_match_count_function);
00241 res |= ast_custom_function_register(&group_list_function);
00242 res |= ast_custom_function_register(&group_function);
00243
00244 return res;
00245 }
00246
00247 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Channel group dialplan functions");