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00023 #include <stdlib.h>
00024 #include <stdio.h>
00025 #include <string.h>
00026 #include <sys/types.h>
00027
00028 #include "asterisk.h"
00029
00030
00031
00032 #include "asterisk/channel.h"
00033 #include "asterisk/pbx.h"
00034 #include "asterisk/logger.h"
00035 #include "asterisk/utils.h"
00036 #include "asterisk/app.h"
00037
00038 static char *group_count_function_read(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
00039 {
00040 int count;
00041 char group[80] = "";
00042 char category[80] = "";
00043 char *grp;
00044
00045 ast_app_group_split_group(data, group, sizeof(group), category, sizeof(category));
00046
00047 if (ast_strlen_zero(group)) {
00048 if ((grp = pbx_builtin_getvar_helper(chan, category)))
00049 ast_copy_string(group, grp, sizeof(group));
00050 else
00051 ast_log(LOG_NOTICE, "No group could be found for channel '%s'\n", chan->name);
00052 }
00053
00054 count = ast_app_group_get_count(group, category);
00055 snprintf(buf, len, "%d", count);
00056
00057 return buf;
00058 }
00059
00060 #ifndef BUILTIN_FUNC
00061 static
00062 #endif
00063 struct ast_custom_function group_count_function = {
00064 .name = "GROUP_COUNT",
00065 .syntax = "GROUP_COUNT([groupname][@category])",
00066 .synopsis = "Counts the number of channels in the specified group",
00067 .desc = "Calculates the group count for the specified group, or uses the\n"
00068 "channel's current group if not specifed (and non-empty).\n",
00069 .read = group_count_function_read,
00070 };
00071
00072 static char *group_match_count_function_read(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
00073 {
00074 int count;
00075 char group[80] = "";
00076 char category[80] = "";
00077
00078 ast_app_group_split_group(data, group, sizeof(group), category, sizeof(category));
00079
00080 if (!ast_strlen_zero(group)) {
00081 count = ast_app_group_match_get_count(group, category);
00082 snprintf(buf, len, "%d", count);
00083 }
00084
00085 return buf;
00086 }
00087
00088 #ifndef BUILTIN_FUNC
00089 static
00090 #endif
00091 struct ast_custom_function group_match_count_function = {
00092 .name = "GROUP_MATCH_COUNT",
00093 .syntax = "GROUP_MATCH_COUNT(groupmatch[@category])",
00094 .synopsis = "Counts the number of channels in the groups matching the specified pattern",
00095 .desc = "Calculates the group count for all groups that match the specified pattern.\n"
00096 "Uses standard regular expression matching (see regex(7)).\n",
00097 .read = group_match_count_function_read,
00098 .write = NULL,
00099 };
00100
00101 static char *group_function_read(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
00102 {
00103 char varname[256];
00104 char *group;
00105
00106 if (!ast_strlen_zero(data)) {
00107 snprintf(varname, sizeof(varname), "%s_%s", GROUP_CATEGORY_PREFIX, data);
00108 } else {
00109 ast_copy_string(varname, GROUP_CATEGORY_PREFIX, sizeof(varname));
00110 }
00111
00112 group = pbx_builtin_getvar_helper(chan, varname);
00113 if (group)
00114 ast_copy_string(buf, group, len);
00115
00116 return buf;
00117 }
00118
00119 static void group_function_write(struct ast_channel *chan, char *cmd, char *data, const char *value)
00120 {
00121 char grpcat[256];
00122
00123 if (!ast_strlen_zero(data)) {
00124 snprintf(grpcat, sizeof(grpcat), "%s@%s", value, data);
00125 } else {
00126 ast_copy_string(grpcat, value, sizeof(grpcat));
00127 }
00128
00129 if (ast_app_group_set_channel(chan, grpcat))
00130 ast_log(LOG_WARNING, "Setting a group requires an argument (group name)\n");
00131 }
00132
00133 #ifndef BUILTIN_FUNC
00134 static
00135 #endif
00136 struct ast_custom_function group_function = {
00137 .name = "GROUP",
00138 .syntax = "GROUP([category])",
00139 .synopsis = "Gets or sets the channel group.",
00140 .desc = "Gets or sets the channel group.\n",
00141 .read = group_function_read,
00142 .write = group_function_write,
00143 };
00144
00145 static char *group_list_function_read(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
00146 {
00147 struct ast_var_t *current;
00148 struct varshead *headp;
00149 char tmp1[1024] = "";
00150 char tmp2[1024] = "";
00151
00152 headp=&chan->varshead;
00153 AST_LIST_TRAVERSE(headp,current,entries) {
00154 if (!strncmp(ast_var_name(current), GROUP_CATEGORY_PREFIX "_", strlen(GROUP_CATEGORY_PREFIX) + 1)) {
00155 if (!ast_strlen_zero(tmp1)) {
00156 ast_copy_string(tmp2, tmp1, sizeof(tmp2));
00157 snprintf(tmp1, sizeof(tmp1), "%s %s@%s", tmp2, ast_var_value(current), (ast_var_name(current) + strlen(GROUP_CATEGORY_PREFIX) + 1));
00158 } else {
00159 snprintf(tmp1, sizeof(tmp1), "%s@%s", ast_var_value(current), (ast_var_name(current) + strlen(GROUP_CATEGORY_PREFIX) + 1));
00160 }
00161 } else if (!strcmp(ast_var_name(current), GROUP_CATEGORY_PREFIX)) {
00162 if (!ast_strlen_zero(tmp1)) {
00163 ast_copy_string(tmp2, tmp1, sizeof(tmp2));
00164 snprintf(tmp1, sizeof(tmp1), "%s %s", tmp2, ast_var_value(current));
00165 } else {
00166 snprintf(tmp1, sizeof(tmp1), "%s", ast_var_value(current));
00167 }
00168 }
00169 }
00170 ast_copy_string(buf, tmp1, len);
00171 return buf;
00172 }
00173
00174 #ifndef BUILTIN_FUNC
00175 static
00176 #endif
00177 struct ast_custom_function group_list_function = {
00178 .name = "GROUP_LIST",
00179 .syntax = "GROUP_LIST()",
00180 .synopsis = "Gets a list of the groups set on a channel.",
00181 .desc = "Gets a list of the groups set on a channel.\n",
00182 .read = group_list_function_read,
00183 .write = NULL,
00184 };
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