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00023 #include "asterisk.h"
00024
00025 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 69259 $")
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 if ((count = ast_app_group_get_count(group, category)) == -1)
00049 ast_log(LOG_NOTICE, "No group could be found for channel '%s'\n", chan->name);
00050 else
00051 snprintf(buf, len, "%d", count);
00052
00053 return 0;
00054 }
00055
00056 static struct ast_custom_function group_count_function = {
00057 .name = "GROUP_COUNT",
00058 .syntax = "GROUP_COUNT([groupname][@category])",
00059 .synopsis = "Counts the number of channels in the specified group",
00060 .desc =
00061 "Calculates the group count for the specified group, or uses the\n"
00062 "channel's current group if not specifed (and non-empty).\n",
00063 .read = group_count_function_read,
00064 };
00065
00066 static int group_match_count_function_read(struct ast_channel *chan,
00067 char *cmd, char *data, char *buf,
00068 size_t len)
00069 {
00070 int count;
00071 char group[80] = "";
00072 char category[80] = "";
00073
00074 ast_app_group_split_group(data, group, sizeof(group), category,
00075 sizeof(category));
00076
00077 if (!ast_strlen_zero(group)) {
00078 count = ast_app_group_match_get_count(group, category);
00079 snprintf(buf, len, "%d", count);
00080 }
00081
00082 return 0;
00083 }
00084
00085 static struct ast_custom_function group_match_count_function = {
00086 .name = "GROUP_MATCH_COUNT",
00087 .syntax = "GROUP_MATCH_COUNT(groupmatch[@category])",
00088 .synopsis =
00089 "Counts the number of channels in the groups matching the specified pattern",
00090 .desc =
00091 "Calculates the group count for all groups that match the specified pattern.\n"
00092 "Uses standard regular expression matching (see regex(7)).\n",
00093 .read = group_match_count_function_read,
00094 .write = NULL,
00095 };
00096
00097 static int group_function_read(struct ast_channel *chan, char *cmd,
00098 char *data, char *buf, size_t len)
00099 {
00100 struct ast_group_info *gi = NULL;
00101
00102 ast_app_group_list_lock();
00103
00104 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00105 if (gi->chan != chan)
00106 continue;
00107 if (ast_strlen_zero(data))
00108 break;
00109 if (!ast_strlen_zero(gi->category) && !strcasecmp(gi->category, data))
00110 break;
00111 }
00112
00113 if (gi)
00114 ast_copy_string(buf, gi->group, len);
00115
00116 ast_app_group_list_unlock();
00117
00118 return 0;
00119 }
00120
00121 static int group_function_write(struct ast_channel *chan, char *cmd,
00122 char *data, const char *value)
00123 {
00124 char grpcat[256];
00125
00126 if (!ast_strlen_zero(data)) {
00127 snprintf(grpcat, sizeof(grpcat), "%s@%s", value, data);
00128 } else {
00129 ast_copy_string(grpcat, value, sizeof(grpcat));
00130 }
00131
00132 if (ast_app_group_set_channel(chan, grpcat))
00133 ast_log(LOG_WARNING,
00134 "Setting a group requires an argument (group name)\n");
00135
00136 return 0;
00137 }
00138
00139 static struct ast_custom_function group_function = {
00140 .name = "GROUP",
00141 .syntax = "GROUP([category])",
00142 .synopsis = "Gets or sets the channel group.",
00143 .desc = "Gets or sets the channel group.\n",
00144 .read = group_function_read,
00145 .write = group_function_write,
00146 };
00147
00148 static int group_list_function_read(struct ast_channel *chan, char *cmd,
00149 char *data, char *buf, size_t len)
00150 {
00151 struct ast_group_info *gi = NULL;
00152 char tmp1[1024] = "";
00153 char tmp2[1024] = "";
00154
00155 if (!chan)
00156 return -1;
00157
00158 ast_app_group_list_lock();
00159
00160 for (gi = ast_app_group_list_head(); gi; gi = AST_LIST_NEXT(gi, list)) {
00161 if (gi->chan != chan)
00162 continue;
00163 if (!ast_strlen_zero(tmp1)) {
00164 ast_copy_string(tmp2, tmp1, sizeof(tmp2));
00165 if (!ast_strlen_zero(gi->category))
00166 snprintf(tmp1, sizeof(tmp1), "%s %s@%s", tmp2, gi->group, gi->category);
00167 else
00168 snprintf(tmp1, sizeof(tmp1), "%s %s", tmp2, gi->group);
00169 } else {
00170 if (!ast_strlen_zero(gi->category))
00171 snprintf(tmp1, sizeof(tmp1), "%s@%s", gi->group, gi->category);
00172 else
00173 snprintf(tmp1, sizeof(tmp1), "%s", gi->group);
00174 }
00175 }
00176
00177 ast_app_group_list_unlock();
00178
00179 ast_copy_string(buf, tmp1, len);
00180
00181 return 0;
00182 }
00183
00184 static struct ast_custom_function group_list_function = {
00185 .name = "GROUP_LIST",
00186 .syntax = "GROUP_LIST()",
00187 .synopsis = "Gets a list of the groups set on a channel.",
00188 .desc = "Gets a list of the groups set on a channel.\n",
00189 .read = group_list_function_read,
00190 .write = NULL,
00191 };
00192
00193 static int unload_module(void)
00194 {
00195 int res = 0;
00196
00197 res |= ast_custom_function_unregister(&group_count_function);
00198 res |= ast_custom_function_unregister(&group_match_count_function);
00199 res |= ast_custom_function_unregister(&group_list_function);
00200 res |= ast_custom_function_unregister(&group_function);
00201
00202 return res;
00203 }
00204
00205 static int load_module(void)
00206 {
00207 int res = 0;
00208
00209 res |= ast_custom_function_register(&group_count_function);
00210 res |= ast_custom_function_register(&group_match_count_function);
00211 res |= ast_custom_function_register(&group_list_function);
00212 res |= ast_custom_function_register(&group_function);
00213
00214 return res;
00215 }
00216
00217 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Channel group dialplan functions");