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