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00023 #include "asterisk.h"
00024
00025 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 97697 $")
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 count = -1;
00043 char group[80] = "", category[80] = "";
00044
00045 ast_app_group_split_group(data, group, sizeof(group), category,
00046 sizeof(category));
00047
00048
00049 if (ast_strlen_zero(group)) {
00050 struct ast_group_info *gi = NULL;
00051
00052 ast_app_group_list_lock();
00053 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00054 if (gi->chan != chan)
00055 continue;
00056 if (ast_strlen_zero(category) || (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, category)))
00057 break;
00058 }
00059 if (gi) {
00060 ast_copy_string(group, gi->group, sizeof(group));
00061 if (!ast_strlen_zero(gi->category))
00062 ast_copy_string(category, gi->category, sizeof(category));
00063 }
00064 ast_app_group_list_unlock();
00065 }
00066
00067 if ((count = ast_app_group_get_count(group, category)) == -1)
00068 ast_log(LOG_NOTICE, "No group could be found for channel '%s'\n", chan->name);
00069 else
00070 snprintf(buf, len, "%d", count);
00071
00072 return 0;
00073 }
00074
00075 static struct ast_custom_function group_count_function = {
00076 .name = "GROUP_COUNT",
00077 .syntax = "GROUP_COUNT([groupname][@category])",
00078 .synopsis = "Counts the number of channels in the specified group",
00079 .desc =
00080 "Calculates the group count for the specified group, or uses the\n"
00081 "channel's current group if not specifed (and non-empty).\n",
00082 .read = group_count_function_read,
00083 };
00084
00085 static int group_match_count_function_read(struct ast_channel *chan,
00086 char *cmd, char *data, char *buf,
00087 size_t len)
00088 {
00089 int count;
00090 char group[80] = "";
00091 char category[80] = "";
00092
00093 ast_app_group_split_group(data, group, sizeof(group), category,
00094 sizeof(category));
00095
00096 if (!ast_strlen_zero(group)) {
00097 count = ast_app_group_match_get_count(group, category);
00098 snprintf(buf, len, "%d", count);
00099 }
00100
00101 return 0;
00102 }
00103
00104 static struct ast_custom_function group_match_count_function = {
00105 .name = "GROUP_MATCH_COUNT",
00106 .syntax = "GROUP_MATCH_COUNT(groupmatch[@category])",
00107 .synopsis =
00108 "Counts the number of channels in the groups matching the specified pattern",
00109 .desc =
00110 "Calculates the group count for all groups that match the specified pattern.\n"
00111 "Uses standard regular expression matching (see regex(7)).\n",
00112 .read = group_match_count_function_read,
00113 .write = NULL,
00114 };
00115
00116 static int group_function_read(struct ast_channel *chan, char *cmd,
00117 char *data, char *buf, size_t len)
00118 {
00119 struct ast_group_info *gi = NULL;
00120
00121 ast_app_group_list_lock();
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
00135 ast_app_group_list_unlock();
00136
00137 return 0;
00138 }
00139
00140 static int group_function_write(struct ast_channel *chan, char *cmd,
00141 char *data, const char *value)
00142 {
00143 char grpcat[256];
00144
00145 if (!ast_strlen_zero(data)) {
00146 snprintf(grpcat, sizeof(grpcat), "%s@%s", value, data);
00147 } else {
00148 ast_copy_string(grpcat, value, sizeof(grpcat));
00149 }
00150
00151 if (ast_app_group_set_channel(chan, grpcat))
00152 ast_log(LOG_WARNING,
00153 "Setting a group requires an argument (group name)\n");
00154
00155 return 0;
00156 }
00157
00158 static struct ast_custom_function group_function = {
00159 .name = "GROUP",
00160 .syntax = "GROUP([category])",
00161 .synopsis = "Gets or sets the channel group.",
00162 .desc = "Gets or sets the channel group.\n",
00163 .read = group_function_read,
00164 .write = group_function_write,
00165 };
00166
00167 static int group_list_function_read(struct ast_channel *chan, char *cmd,
00168 char *data, char *buf, size_t len)
00169 {
00170 struct ast_group_info *gi = NULL;
00171 char tmp1[1024] = "";
00172 char tmp2[1024] = "";
00173
00174 if (!chan)
00175 return -1;
00176
00177 ast_app_group_list_lock();
00178
00179 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00180 if (gi->chan != chan)
00181 continue;
00182 if (!ast_strlen_zero(tmp1)) {
00183 ast_copy_string(tmp2, tmp1, sizeof(tmp2));
00184 if (!ast_strlen_zero(gi->category))
00185 snprintf(tmp1, sizeof(tmp1), "%s %s@%s", tmp2, gi->group, gi->category);
00186 else
00187 snprintf(tmp1, sizeof(tmp1), "%s %s", tmp2, gi->group);
00188 } else {
00189 if (!ast_strlen_zero(gi->category))
00190 snprintf(tmp1, sizeof(tmp1), "%s@%s", gi->group, gi->category);
00191 else
00192 snprintf(tmp1, sizeof(tmp1), "%s", gi->group);
00193 }
00194 }
00195
00196 ast_app_group_list_unlock();
00197
00198 ast_copy_string(buf, tmp1, len);
00199
00200 return 0;
00201 }
00202
00203 static struct ast_custom_function group_list_function = {
00204 .name = "GROUP_LIST",
00205 .syntax = "GROUP_LIST()",
00206 .synopsis = "Gets a list of the groups set on a channel.",
00207 .desc = "Gets a list of the groups set on a channel.\n",
00208 .read = group_list_function_read,
00209 .write = NULL,
00210 };
00211
00212 static int unload_module(void)
00213 {
00214 int res = 0;
00215
00216 res |= ast_custom_function_unregister(&group_count_function);
00217 res |= ast_custom_function_unregister(&group_match_count_function);
00218 res |= ast_custom_function_unregister(&group_list_function);
00219 res |= ast_custom_function_unregister(&group_function);
00220
00221 return res;
00222 }
00223
00224 static int load_module(void)
00225 {
00226 int res = 0;
00227
00228 res |= ast_custom_function_register(&group_count_function);
00229 res |= ast_custom_function_register(&group_match_count_function);
00230 res |= ast_custom_function_register(&group_list_function);
00231 res |= ast_custom_function_register(&group_function);
00232
00233 return res;
00234 }
00235
00236 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Channel group dialplan functions");