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icecast-server/src/admin.c
Karl Heyes 9c44a7d184 merged singleq branch 7177:7591 
svn path=/icecast/trunk/icecast/; revision=7592
2004-08-20 15:13:59 +00:00

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27 KiB
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/* Icecast
*
* This program is distributed under the GNU General Public License, version 2.
* A copy of this license is included with this source.
*
* Copyright 2000-2004, Jack Moffitt <jack@xiph.org,
* Michael Smith <msmith@xiph.org>,
* oddsock <oddsock@xiph.org>,
* Karl Heyes <karl@xiph.org>
* and others (see AUTHORS for details).
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include "cfgfile.h"
#include "connection.h"
#include "refbuf.h"
#include "client.h"
#include "source.h"
#include "global.h"
#include "event.h"
#include "stats.h"
#include "os.h"
#include "xslt.h"
#include "format.h"
#include "format_mp3.h"
#include "logging.h"
#include "auth.h"
#ifdef _WIN32
#define snprintf _snprintf
#endif
#define CATMODULE "admin"
#define COMMAND_ERROR (-1)
/* Mount-specific commands */
#define COMMAND_RAW_FALLBACK 1
#define COMMAND_METADATA_UPDATE 2
#define COMMAND_RAW_SHOW_LISTENERS 3
#define COMMAND_RAW_MOVE_CLIENTS 4
#define COMMAND_RAW_MANAGEAUTH 5
#define COMMAND_TRANSFORMED_FALLBACK 50
#define COMMAND_TRANSFORMED_SHOW_LISTENERS 53
#define COMMAND_TRANSFORMED_MOVE_CLIENTS 54
#define COMMAND_TRANSFORMED_MANAGEAUTH 55
/* Global commands */
#define COMMAND_RAW_LIST_MOUNTS 101
#define COMMAND_RAW_STATS 102
#define COMMAND_RAW_LISTSTREAM 103
#define COMMAND_PLAINTEXT_LISTSTREAM 104
#define COMMAND_TRANSFORMED_LIST_MOUNTS 201
#define COMMAND_TRANSFORMED_STATS 202
#define COMMAND_TRANSFORMED_LISTSTREAM 203
/* Client management commands */
#define COMMAND_RAW_KILL_CLIENT 301
#define COMMAND_RAW_KILL_SOURCE 302
#define COMMAND_TRANSFORMED_KILL_CLIENT 401
#define COMMAND_TRANSFORMED_KILL_SOURCE 402
/* Admin commands requiring no auth */
#define COMMAND_BUILDM3U 501
#define FALLBACK_RAW_REQUEST "fallbacks"
#define FALLBACK_TRANSFORMED_REQUEST "fallbacks.xsl"
#define METADATA_REQUEST "metadata"
#define LISTCLIENTS_RAW_REQUEST "listclients"
#define LISTCLIENTS_TRANSFORMED_REQUEST "listclients.xsl"
#define STATS_RAW_REQUEST "stats"
#define STATS_TRANSFORMED_REQUEST "stats.xsl"
#define LISTMOUNTS_RAW_REQUEST "listmounts"
#define LISTMOUNTS_TRANSFORMED_REQUEST "listmounts.xsl"
#define STREAMLIST_RAW_REQUEST "streamlist"
#define STREAMLIST_TRANSFORMED_REQUEST "streamlist.xsl"
#define STREAMLIST_PLAINTEXT_REQUEST "streamlist.txt"
#define MOVECLIENTS_RAW_REQUEST "moveclients"
#define MOVECLIENTS_TRANSFORMED_REQUEST "moveclients.xsl"
#define KILLCLIENT_RAW_REQUEST "killclient"
#define KILLCLIENT_TRANSFORMED_REQUEST "killclient.xsl"
#define KILLSOURCE_RAW_REQUEST "killsource"
#define KILLSOURCE_TRANSFORMED_REQUEST "killsource.xsl"
#define ADMIN_XSL_RESPONSE "response.xsl"
#define MANAGEAUTH_RAW_REQUEST "manageauth"
#define MANAGEAUTH_TRANSFORMED_REQUEST "manageauth.xsl"
#define DEFAULT_RAW_REQUEST ""
#define DEFAULT_TRANSFORMED_REQUEST ""
#define BUILDM3U_RAW_REQUEST "buildm3u"
#define RAW 1
#define TRANSFORMED 2
#define PLAINTEXT 3
int admin_get_command(char *command)
{
if(!strcmp(command, FALLBACK_RAW_REQUEST))
return COMMAND_RAW_FALLBACK;
else if(!strcmp(command, FALLBACK_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_FALLBACK;
else if(!strcmp(command, METADATA_REQUEST))
return COMMAND_METADATA_UPDATE;
else if(!strcmp(command, LISTCLIENTS_RAW_REQUEST))
return COMMAND_RAW_SHOW_LISTENERS;
else if(!strcmp(command, LISTCLIENTS_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_SHOW_LISTENERS;
else if(!strcmp(command, STATS_RAW_REQUEST))
return COMMAND_RAW_STATS;
else if(!strcmp(command, STATS_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_STATS;
else if(!strcmp(command, "stats.xml")) /* The old way */
return COMMAND_RAW_STATS;
else if(!strcmp(command, LISTMOUNTS_RAW_REQUEST))
return COMMAND_RAW_LIST_MOUNTS;
else if(!strcmp(command, LISTMOUNTS_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_LIST_MOUNTS;
else if(!strcmp(command, STREAMLIST_RAW_REQUEST))
return COMMAND_RAW_LISTSTREAM;
else if(!strcmp(command, STREAMLIST_PLAINTEXT_REQUEST))
return COMMAND_PLAINTEXT_LISTSTREAM;
else if(!strcmp(command, MOVECLIENTS_RAW_REQUEST))
return COMMAND_RAW_MOVE_CLIENTS;
else if(!strcmp(command, MOVECLIENTS_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_MOVE_CLIENTS;
else if(!strcmp(command, KILLCLIENT_RAW_REQUEST))
return COMMAND_RAW_KILL_CLIENT;
else if(!strcmp(command, KILLCLIENT_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_KILL_CLIENT;
else if(!strcmp(command, KILLSOURCE_RAW_REQUEST))
return COMMAND_RAW_KILL_SOURCE;
else if(!strcmp(command, KILLSOURCE_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_KILL_SOURCE;
else if(!strcmp(command, MANAGEAUTH_RAW_REQUEST))
return COMMAND_RAW_MANAGEAUTH;
else if(!strcmp(command, MANAGEAUTH_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_MANAGEAUTH;
else if(!strcmp(command, BUILDM3U_RAW_REQUEST))
return COMMAND_BUILDM3U;
else if(!strcmp(command, DEFAULT_TRANSFORMED_REQUEST))
return COMMAND_TRANSFORMED_STATS;
else if(!strcmp(command, DEFAULT_RAW_REQUEST))
return COMMAND_TRANSFORMED_STATS;
else
return COMMAND_ERROR;
}
static void command_fallback(client_t *client, source_t *source, int response);
static void command_metadata(client_t *client, source_t *source);
static void command_show_listeners(client_t *client, source_t *source,
int response);
static void command_move_clients(client_t *client, source_t *source,
int response);
static void command_stats(client_t *client, int response);
static void command_list_mounts(client_t *client, int response);
static void command_kill_client(client_t *client, source_t *source,
int response);
static void command_manageauth(client_t *client, source_t *source,
int response);
static void command_buildm3u(client_t *client, source_t *source,
int response);
static void command_kill_source(client_t *client, source_t *source,
int response);
static void admin_handle_mount_request(client_t *client, source_t *source,
int command);
static void admin_handle_general_request(client_t *client, int command);
static void admin_send_response(xmlDocPtr doc, client_t *client,
int response, char *xslt_template);
static void html_write(client_t *client, char *fmt, ...);
xmlDocPtr admin_build_sourcelist(char *current_source)
{
avl_node *node;
source_t *source;
xmlNodePtr xmlnode, srcnode;
xmlDocPtr doc;
char buf[22];
time_t now = time(NULL);
doc = xmlNewDoc("1.0");
xmlnode = xmlNewDocNode(doc, NULL, "icestats", NULL);
xmlDocSetRootElement(doc, xmlnode);
if (current_source) {
xmlNewChild(xmlnode, NULL, "current_source", current_source);
}
node = avl_get_first(global.source_tree);
while(node) {
source = (source_t *)node->key;
if (source->running)
{
srcnode = xmlNewChild(xmlnode, NULL, "source", NULL);
xmlSetProp(srcnode, "mount", source->mount);
xmlNewChild(srcnode, NULL, "fallback",
(source->fallback_mount != NULL)?
source->fallback_mount:"");
snprintf(buf, sizeof(buf), "%ld", source->listeners);
xmlNewChild(srcnode, NULL, "listeners", buf);
snprintf(buf, sizeof(buf), "%lu",
(unsigned long)(now - source->con->con_time));
xmlNewChild(srcnode, NULL, "Connected", buf);
xmlNewChild(srcnode, NULL, "Format",
source->format->format_description);
if (source->authenticator) {
xmlNewChild(srcnode, NULL, "authenticator",
source->authenticator->type);
}
}
node = avl_get_next(node);
}
return(doc);
}
void admin_send_response(xmlDocPtr doc, client_t *client,
int response, char *xslt_template)
{
xmlChar *buff = NULL;
int len = 0;
ice_config_t *config;
char *fullpath_xslt_template;
int fullpath_xslt_template_len;
char *adminwebroot;
client->respcode = 200;
if (response == RAW) {
xmlDocDumpMemory(doc, &buff, &len);
html_write(client, "HTTP/1.0 200 OK\r\n"
"Content-Length: %d\r\n"
"Content-Type: text/xml\r\n"
"\r\n", len);
html_write(client, buff);
}
if (response == TRANSFORMED) {
config = config_get_config();
adminwebroot = config->adminroot_dir;
config_release_config();
fullpath_xslt_template_len = strlen(adminwebroot) +
strlen(xslt_template) + 2;
fullpath_xslt_template = malloc(fullpath_xslt_template_len);
memset(fullpath_xslt_template, '\000', fullpath_xslt_template_len);
snprintf(fullpath_xslt_template, fullpath_xslt_template_len, "%s%s%s",
adminwebroot, PATH_SEPARATOR, xslt_template);
html_write(client, "HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"\r\n");
DEBUG1("Sending XSLT (%s)", fullpath_xslt_template);
xslt_transform(doc, fullpath_xslt_template, client);
free(fullpath_xslt_template);
}
if (buff) {
xmlFree(buff);
}
}
void admin_handle_request(client_t *client, char *uri)
{
char *mount, *command_string;
int command;
int noauth = 0;
if(strncmp("/admin/", uri, 7)) {
ERROR0("Internal error: admin request isn't");
client_send_401(client);
return;
}
command_string = uri + 7;
DEBUG1("Got command (%s)", command_string);
command = admin_get_command(command_string);
if(command < 0) {
ERROR1("Error parsing command string or unrecognised command: %s",
command_string);
client_send_400(client, "Unrecognised command");
return;
}
mount = httpp_get_query_param(client->parser, "mount");
if(mount != NULL) {
source_t *source;
if (command == COMMAND_BUILDM3U) {
noauth = 1;
}
/* This is a mount request, handle it as such */
if (!noauth) {
if(!connection_check_admin_pass(client->parser)) {
if(!connection_check_source_pass(client->parser, mount)) {
INFO1("Bad or missing password on mount modification admin "
"request (command: %s)", command_string);
client_send_401(client);
return;
}
}
}
avl_tree_rlock(global.source_tree);
source = source_find_mount_raw(mount);
if (source == NULL)
{
WARN2("Admin command %s on non-existent source %s",
command_string, mount);
avl_tree_unlock(global.source_tree);
client_send_400(client, "Source does not exist");
}
else
{
if (source->running == 0)
{
INFO2("Received admin command %s on unavailable mount \"%s\"",
command_string, mount);
avl_tree_unlock (global.source_tree);
client_send_400 (client, "Source is not available");
return;
}
INFO2("Received admin command %s on mount \"%s\"",
command_string, mount);
admin_handle_mount_request(client, source, command);
avl_tree_unlock(global.source_tree);
}
}
else {
if (command == COMMAND_PLAINTEXT_LISTSTREAM) {
/* this request is used by a slave relay to retrieve
mounts from the master, so handle this request
validating against the relay password */
if(!connection_check_relay_pass(client->parser)) {
INFO1("Bad or missing password on admin command "
"request (command: %s)", command_string);
client_send_401(client);
return;
}
}
else {
if(!connection_check_admin_pass(client->parser)) {
INFO1("Bad or missing password on admin command "
"request (command: %s)", command_string);
client_send_401(client);
return;
}
}
admin_handle_general_request(client, command);
}
}
static void admin_handle_general_request(client_t *client, int command)
{
switch(command) {
case COMMAND_RAW_STATS:
command_stats(client, RAW);
break;
case COMMAND_RAW_LIST_MOUNTS:
command_list_mounts(client, RAW);
break;
case COMMAND_RAW_LISTSTREAM:
command_list_mounts(client, RAW);
break;
case COMMAND_PLAINTEXT_LISTSTREAM:
command_list_mounts(client, PLAINTEXT);
break;
case COMMAND_TRANSFORMED_STATS:
command_stats(client, TRANSFORMED);
break;
case COMMAND_TRANSFORMED_LIST_MOUNTS:
command_list_mounts(client, TRANSFORMED);
break;
case COMMAND_TRANSFORMED_LISTSTREAM:
command_list_mounts(client, TRANSFORMED);
break;
case COMMAND_TRANSFORMED_MOVE_CLIENTS:
command_list_mounts(client, TRANSFORMED);
break;
default:
WARN0("General admin request not recognised");
client_send_400(client, "Unknown admin request");
return;
}
}
static void admin_handle_mount_request(client_t *client, source_t *source,
int command)
{
switch(command) {
case COMMAND_RAW_FALLBACK:
command_fallback(client, source, RAW);
break;
case COMMAND_METADATA_UPDATE:
command_metadata(client, source);
break;
case COMMAND_RAW_SHOW_LISTENERS:
command_show_listeners(client, source, RAW);
break;
case COMMAND_RAW_MOVE_CLIENTS:
command_move_clients(client, source, RAW);
break;
case COMMAND_RAW_KILL_CLIENT:
command_kill_client(client, source, RAW);
break;
case COMMAND_RAW_KILL_SOURCE:
command_kill_source(client, source, RAW);
break;
case COMMAND_TRANSFORMED_FALLBACK:
command_fallback(client, source, RAW);
break;
case COMMAND_TRANSFORMED_SHOW_LISTENERS:
command_show_listeners(client, source, TRANSFORMED);
break;
case COMMAND_TRANSFORMED_MOVE_CLIENTS:
command_move_clients(client, source, TRANSFORMED);
break;
case COMMAND_TRANSFORMED_KILL_CLIENT:
command_kill_client(client, source, TRANSFORMED);
break;
case COMMAND_TRANSFORMED_KILL_SOURCE:
command_kill_source(client, source, TRANSFORMED);
break;
case COMMAND_TRANSFORMED_MANAGEAUTH:
command_manageauth(client, source, TRANSFORMED);
break;
case COMMAND_RAW_MANAGEAUTH:
command_manageauth(client, source, RAW);
break;
case COMMAND_BUILDM3U:
command_buildm3u(client, source, RAW);
break;
default:
WARN0("Mount request not recognised");
client_send_400(client, "Mount request unknown");
break;
}
}
#define COMMAND_REQUIRE(client,name,var) \
do { \
(var) = httpp_get_query_param((client)->parser, (name)); \
if((var) == NULL) { \
client_send_400((client), "Missing parameter"); \
return; \
} \
} while(0);
#define COMMAND_OPTIONAL(client,name,var) \
(var) = httpp_get_query_param((client)->parser, (name))
static void html_success(client_t *client, char *message)
{
int bytes;
client->respcode = 200;
bytes = sock_write(client->con->sock,
"HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"
"<html><head><title>Admin request successful</title></head>"
"<body><p>%s</p></body></html>", message);
if(bytes > 0) client->con->sent_bytes = bytes;
client_destroy(client);
}
static void html_write(client_t *client, char *fmt, ...)
{
int bytes;
va_list ap;
va_start(ap, fmt);
bytes = sock_write_fmt(client->con->sock, fmt, ap);
va_end(ap);
if(bytes > 0) client->con->sent_bytes = bytes;
}
static void command_move_clients(client_t *client, source_t *source,
int response)
{
char *dest_source;
source_t *dest;
xmlDocPtr doc;
xmlNodePtr node;
char buf[255];
int parameters_passed = 0;
DEBUG0("Doing optional check");
if((COMMAND_OPTIONAL(client, "destination", dest_source))) {
parameters_passed = 1;
}
DEBUG1("Done optional check (%d)", parameters_passed);
if (!parameters_passed) {
doc = admin_build_sourcelist(source->mount);
admin_send_response(doc, client, response,
MOVECLIENTS_TRANSFORMED_REQUEST);
xmlFreeDoc(doc);
client_destroy(client);
return;
}
dest = source_find_mount (dest_source);
if (dest == NULL)
{
client_send_400 (client, "No such destination");
return;
}
if (strcmp (dest->mount, source->mount) == 0)
{
client_send_400 (client, "supplied mountpoints are identical");
return;
}
if (dest->running == 0)
{
client_send_400 (client, "Destination not running");
return;
}
doc = xmlNewDoc("1.0");
node = xmlNewDocNode(doc, NULL, "iceresponse", NULL);
xmlDocSetRootElement(doc, node);
source_move_clients (source, dest);
memset(buf, '\000', sizeof(buf));
snprintf (buf, sizeof(buf), "Clients moved from %s to %s",
source->mount, dest_source);
xmlNewChild(node, NULL, "message", buf);
xmlNewChild(node, NULL, "return", "1");
admin_send_response(doc, client, response,
ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
client_destroy(client);
}
static void command_show_listeners(client_t *client, source_t *source,
int response)
{
xmlDocPtr doc;
xmlNodePtr node, srcnode, listenernode;
avl_node *client_node;
client_t *current;
char buf[22];
char *userAgent = NULL;
time_t now = time(NULL);
doc = xmlNewDoc("1.0");
node = xmlNewDocNode(doc, NULL, "icestats", NULL);
srcnode = xmlNewChild(node, NULL, "source", NULL);
xmlSetProp(srcnode, "mount", source->mount);
xmlDocSetRootElement(doc, node);
memset(buf, '\000', sizeof(buf));
snprintf(buf, sizeof(buf)-1, "%ld", source->listeners);
xmlNewChild(srcnode, NULL, "Listeners", buf);
avl_tree_rlock(source->client_tree);
client_node = avl_get_first(source->client_tree);
while(client_node) {
current = (client_t *)client_node->key;
listenernode = xmlNewChild(srcnode, NULL, "listener", NULL);
xmlNewChild(listenernode, NULL, "IP", current->con->ip);
userAgent = httpp_getvar(current->parser, "user-agent");
if (userAgent) {
xmlNewChild(listenernode, NULL, "UserAgent", userAgent);
}
else {
xmlNewChild(listenernode, NULL, "UserAgent", "Unknown");
}
memset(buf, '\000', sizeof(buf));
snprintf(buf, sizeof(buf)-1, "%ld", now - current->con->con_time);
xmlNewChild(listenernode, NULL, "Connected", buf);
memset(buf, '\000', sizeof(buf));
snprintf(buf, sizeof(buf)-1, "%lu", current->con->id);
xmlNewChild(listenernode, NULL, "ID", buf);
if (current->username) {
xmlNewChild(listenernode, NULL, "username", current->username);
}
client_node = avl_get_next(client_node);
}
avl_tree_unlock(source->client_tree);
admin_send_response(doc, client, response,
LISTCLIENTS_TRANSFORMED_REQUEST);
xmlFreeDoc(doc);
client_destroy(client);
}
static void command_buildm3u(client_t *client, source_t *source,
int response)
{
char *username = NULL;
char *password = NULL;
char *host = NULL;
int port = 0;
ice_config_t *config;
COMMAND_REQUIRE(client, "username", username);
COMMAND_REQUIRE(client, "password", password);
config = config_get_config();
host = strdup(config->hostname);
port = config->port;
config_release_config();
client->respcode = 200;
sock_write(client->con->sock,
"HTTP/1.0 200 OK\r\n"
"Content-Type: audio/x-mpegurl\r\n"
"Content-Disposition = attachment; filename=listen.m3u\r\n\r\n"
"http://%s:%s@%s:%d%s\r\n",
username,
password,
host,
port,
source->mount
);
free(host);
client_destroy(client);
}
static void command_manageauth(client_t *client, source_t *source,
int response)
{
xmlDocPtr doc;
xmlNodePtr node, srcnode, msgnode;
char *action = NULL;
char *username = NULL;
char *password = NULL;
char *message = NULL;
int ret = AUTH_OK;
if((COMMAND_OPTIONAL(client, "action", action))) {
if (!strcmp(action, "add")) {
COMMAND_REQUIRE(client, "username", username);
COMMAND_REQUIRE(client, "password", password);
ret = auth_adduser(source, username, password);
if (ret == AUTH_FAILED) {
message = strdup("User add failed - check the icecast error log");
}
if (ret == AUTH_USERADDED) {
message = strdup("User added");
}
if (ret == AUTH_USEREXISTS) {
message = strdup("User already exists - not added");
}
}
if (!strcmp(action, "delete")) {
COMMAND_REQUIRE(client, "username", username);
ret = auth_deleteuser(source, username);
if (ret == AUTH_FAILED) {
message = strdup("User delete failed - check the icecast error log");
}
if (ret == AUTH_USERDELETED) {
message = strdup("User deleted");
}
}
}
doc = xmlNewDoc("1.0");
node = xmlNewDocNode(doc, NULL, "icestats", NULL);
srcnode = xmlNewChild(node, NULL, "source", NULL);
xmlSetProp(srcnode, "mount", source->mount);
if (message) {
msgnode = xmlNewChild(node, NULL, "iceresponse", NULL);
xmlNewChild(msgnode, NULL, "message", message);
}
xmlDocSetRootElement(doc, node);
auth_get_userlist(source, srcnode);
admin_send_response(doc, client, response,
MANAGEAUTH_TRANSFORMED_REQUEST);
if (message) {
free(message);
}
xmlFreeDoc(doc);
client_destroy(client);
}
static void command_kill_source(client_t *client, source_t *source,
int response)
{
xmlDocPtr doc;
xmlNodePtr node;
doc = xmlNewDoc("1.0");
node = xmlNewDocNode(doc, NULL, "iceresponse", NULL);
xmlNewChild(node, NULL, "message", "Source Removed");
xmlNewChild(node, NULL, "return", "1");
xmlDocSetRootElement(doc, node);
source->running = 0;
admin_send_response(doc, client, response,
ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
client_destroy(client);
}
static void command_kill_client(client_t *client, source_t *source,
int response)
{
char *idtext;
int id;
client_t *listener;
xmlDocPtr doc;
xmlNodePtr node;
char buf[50] = "";
COMMAND_REQUIRE(client, "id", idtext);
id = atoi(idtext);
listener = source_find_client(source, id);
doc = xmlNewDoc("1.0");
node = xmlNewDocNode(doc, NULL, "iceresponse", NULL);
xmlDocSetRootElement(doc, node);
DEBUG1("Response is %d", response);
if(listener != NULL) {
INFO1("Admin request: client %d removed", id);
/* This tags it for removal on the next iteration of the main source
* loop
*/
listener->con->error = 1;
memset(buf, '\000', sizeof(buf));
snprintf(buf, sizeof(buf)-1, "Client %d removed", id);
xmlNewChild(node, NULL, "message", buf);
xmlNewChild(node, NULL, "return", "1");
}
else {
memset(buf, '\000', sizeof(buf));
snprintf(buf, sizeof(buf)-1, "Client %d not found", id);
xmlNewChild(node, NULL, "message", buf);
xmlNewChild(node, NULL, "return", "0");
}
admin_send_response(doc, client, response,
ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
client_destroy(client);
}
static void command_fallback(client_t *client, source_t *source,
int response)
{
char *fallback;
char *old;
DEBUG0("Got fallback request");
COMMAND_REQUIRE(client, "fallback", fallback);
old = source->fallback_mount;
source->fallback_mount = strdup(fallback);
free(old);
html_success(client, "Fallback configured");
}
static void command_metadata(client_t *client, source_t *source)
{
char *action;
char *value;
mp3_state *state;
DEBUG0("Got metadata update request");
COMMAND_REQUIRE(client, "mode", action);
COMMAND_REQUIRE(client, "song", value);
if (source->format->type != FORMAT_TYPE_MP3)
{
client_send_400 (client, "Not mp3, cannot update metadata");
return;
}
if (strcmp (action, "updinfo") != 0)
{
client_send_400 (client, "No such action");
return;
}
state = source->format->_state;
mp3_set_tag (source->format, "title", value);
DEBUG2("Metadata on mountpoint %s changed to \"%s\"",
source->mount, value);
stats_event(source->mount, "title", value);
/* If we get an update on the mountpoint, force a
yp touch */
yp_touch (source->mount);
html_success(client, "Metadata update successful");
}
static void command_stats(client_t *client, int response) {
xmlDocPtr doc;
DEBUG0("Stats request, sending xml stats");
stats_get_xml(&doc);
admin_send_response(doc, client, response, STATS_TRANSFORMED_REQUEST);
xmlFreeDoc(doc);
client_destroy(client);
return;
}
static void command_list_mounts(client_t *client, int response)
{
avl_node *node;
source_t *source;
DEBUG0("List mounts request");
avl_tree_rlock (global.source_tree);
if (response == PLAINTEXT)
{
char buffer [4096], *buf = buffer;
unsigned remaining = sizeof (buffer);
int ret = sprintf (buffer,
"HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n");
node = avl_get_first(global.source_tree);
while (node && ret > 0 && ret < remaining)
{
remaining -= ret;
buf += ret;
source = (source_t *)node->key;
ret = snprintf (buf, remaining, "%s\n", source->mount);
node = avl_get_next(node);
}
avl_tree_unlock (global.source_tree);
/* handle last line */
if (ret > 0 && ret < remaining)
{
remaining -= ret;
buf += ret;
}
sock_write_bytes (client->con->sock, buffer, sizeof (buffer)-remaining);
}
else
{
xmlDocPtr doc = admin_build_sourcelist(NULL);
avl_tree_unlock (global.source_tree);
admin_send_response(doc, client, response,
LISTMOUNTS_TRANSFORMED_REQUEST);
xmlFreeDoc(doc);
}
client_destroy(client);
return;
}
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