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cf21756035
icecast-server/src/admin.c
Marvin Scholz cf21756035 Refactor admin.c handlers
2018-05-06 14:22:51 +02:00

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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).
* Copyright 2012-2014, Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
*/
#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 "stats.h"
#include "compat.h"
#include "xslt.h"
#include "fserve.h"
#include "admin.h"
#include "format.h"
#include "logging.h"
#include "auth.h"
#ifdef _WIN32
#define snprintf _snprintf
#endif
#define CATMODULE "admin"
/* Helper macros */
#define COMMAND_REQUIRE(client,name,var) \
do { \
(var) = httpp_get_query_param((client)->parser, (name)); \
if((var) == NULL) { \
client_send_error((client), 400, 0, "Missing parameter"); \
return; \
} \
} while(0);
#define COMMAND_OPTIONAL(client,name,var) \
(var) = httpp_get_query_param((client)->parser, (name))
/* special commands */
#define COMMAND_ERROR ADMIN_COMMAND_ERROR
#define COMMAND_ANY ADMIN_COMMAND_ANY
#define FALLBACK_RAW_REQUEST "fallbacks"
#define FALLBACK_TRANSFORMED_REQUEST "fallbacks.xsl"
#define SHOUTCAST_METADATA_REQUEST "admin.cgi"
#define METADATA_RAW_REQUEST "metadata"
#define METADATA_TRANSFORMED_REQUEST "metadata.xsl"
#define LISTCLIENTS_RAW_REQUEST "listclients"
#define LISTCLIENTS_TRANSFORMED_REQUEST "listclients.xsl"
#define STATS_RAW_REQUEST "stats"
#define STATS_TRANSFORMED_REQUEST "stats.xsl"
#define QUEUE_RELOAD_RAW_REQUEST "reloadconfig"
#define QUEUE_RELOAD_TRANSFORMED_REQUEST "reloadconfig.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 UPDATEMETADATA_RAW_REQUEST "updatemetadata"
#define UPDATEMETADATA_TRANSFORMED_REQUEST "updatemetadata.xsl"
#define DEFAULT_RAW_REQUEST ""
#define DEFAULT_TRANSFORMED_REQUEST ""
#define BUILDM3U_RAW_REQUEST "buildm3u"
typedef void (*request_function_ptr)(client_t *, source_t *, int);
typedef struct admin_command_handler {
const char *route;
const int type;
const int format;
const request_function_ptr function;
} admin_command_handler_t;
static void command_fallback (client_t *client, source_t *source, int response);
static void command_metadata (client_t *client, source_t *source, int response);
static void command_shoutcast_metadata (client_t *client, source_t *source, int response);
static void command_show_listeners (client_t *client, source_t *source, int response);
static void command_stats (client_t *client, source_t *source, int response);
static void command_queue_reload (client_t *client, source_t *source, int response);
static void command_list_mounts (client_t *client, source_t *source, int response);
static void command_move_clients (client_t *client, source_t *source, int response);
static void command_kill_client (client_t *client, source_t *source, int response);
static void command_kill_source (client_t *client, source_t *source, int response);
static void command_manageauth (client_t *client, source_t *source, int response);
static void command_updatemetadata (client_t *client, source_t *source, int response);
static void command_buildm3u (client_t *client, source_t *source, int response);
static const admin_command_handler_t handlers[] = {
{ "*", ADMINTYPE_GENERAL, TRANSFORMED, NULL }, /* for ACL framework */
{ FALLBACK_RAW_REQUEST, ADMINTYPE_MOUNT, RAW, command_fallback },
{ FALLBACK_TRANSFORMED_REQUEST, ADMINTYPE_MOUNT, TRANSFORMED, command_fallback },
{ METADATA_RAW_REQUEST, ADMINTYPE_MOUNT, RAW, command_metadata },
{ METADATA_TRANSFORMED_REQUEST, ADMINTYPE_MOUNT, TRANSFORMED, command_metadata },
{ SHOUTCAST_METADATA_REQUEST, ADMINTYPE_MOUNT, TRANSFORMED, command_shoutcast_metadata },
{ LISTCLIENTS_RAW_REQUEST, ADMINTYPE_MOUNT, RAW, command_show_listeners },
{ LISTCLIENTS_TRANSFORMED_REQUEST, ADMINTYPE_MOUNT, TRANSFORMED, command_show_listeners },
{ STATS_RAW_REQUEST, ADMINTYPE_HYBRID, RAW, command_stats },
{ STATS_TRANSFORMED_REQUEST, ADMINTYPE_HYBRID, TRANSFORMED, command_stats },
{ "stats.xml", ADMINTYPE_HYBRID, RAW, command_stats },
{ QUEUE_RELOAD_RAW_REQUEST, ADMINTYPE_GENERAL, RAW, command_queue_reload },
{ QUEUE_RELOAD_TRANSFORMED_REQUEST, ADMINTYPE_GENERAL, TRANSFORMED, command_queue_reload },
{ LISTMOUNTS_RAW_REQUEST, ADMINTYPE_GENERAL, RAW, command_list_mounts },
{ LISTMOUNTS_TRANSFORMED_REQUEST, ADMINTYPE_GENERAL, TRANSFORMED, command_list_mounts },
{ STREAMLIST_RAW_REQUEST, ADMINTYPE_GENERAL, RAW, command_list_mounts },
{ STREAMLIST_PLAINTEXT_REQUEST, ADMINTYPE_GENERAL, PLAINTEXT, command_list_mounts },
{ STREAMLIST_TRANSFORMED_REQUEST, ADMINTYPE_GENERAL, TRANSFORMED, command_list_mounts },
{ MOVECLIENTS_RAW_REQUEST, ADMINTYPE_MOUNT, RAW, command_move_clients },
{ MOVECLIENTS_TRANSFORMED_REQUEST, ADMINTYPE_HYBRID, TRANSFORMED, command_move_clients },
{ KILLCLIENT_RAW_REQUEST, ADMINTYPE_MOUNT, RAW, command_kill_client },
{ KILLCLIENT_TRANSFORMED_REQUEST, ADMINTYPE_MOUNT, TRANSFORMED, command_kill_client },
{ KILLSOURCE_RAW_REQUEST, ADMINTYPE_MOUNT, RAW, command_kill_source },
{ KILLSOURCE_TRANSFORMED_REQUEST, ADMINTYPE_MOUNT, TRANSFORMED, command_kill_source },
{ MANAGEAUTH_RAW_REQUEST, ADMINTYPE_GENERAL, RAW, command_manageauth },
{ MANAGEAUTH_TRANSFORMED_REQUEST, ADMINTYPE_GENERAL, TRANSFORMED, command_manageauth },
{ UPDATEMETADATA_RAW_REQUEST, ADMINTYPE_MOUNT, RAW, command_updatemetadata },
{ UPDATEMETADATA_TRANSFORMED_REQUEST, ADMINTYPE_MOUNT, TRANSFORMED, command_updatemetadata },
{ BUILDM3U_RAW_REQUEST, ADMINTYPE_MOUNT, RAW, command_buildm3u },
{ DEFAULT_TRANSFORMED_REQUEST, ADMINTYPE_HYBRID, TRANSFORMED, command_stats },
{ DEFAULT_RAW_REQUEST, ADMINTYPE_HYBRID, TRANSFORMED, command_stats }
};
#define HANDLERS_COUNT (sizeof(handlers)/sizeof(*handlers))
int admin_get_command(const char *command)
{
size_t i;
for (i = 0; i < HANDLERS_COUNT; i++)
if (strcmp(handlers[i].route, command) == 0)
return i;
return COMMAND_ERROR;
}
/* Get the command handler for command or NULL
*/
const admin_command_handler_t* admin_get_handler(int command)
{
if (command > 0 && command < HANDLERS_COUNT)
return &handlers[command];
return NULL;
}
/* Get the command type for command
* If the command is invalid, ADMINTYPE_ERROR is returned.
*/
int admin_get_command_type(int command)
{
const admin_command_handler_t* handler = admin_get_handler(command);
if (handler != NULL)
return handler->type;
return ADMINTYPE_ERROR;
}
/* build an XML doc containing information about currently running sources.
* If a mountpoint is passed then that source will not be added to the XML
* doc even if the source is running */
xmlDocPtr admin_build_sourcelist(const char *mount)
{
avl_node *node;
source_t *source;
xmlNodePtr xmlnode, srcnode;
xmlDocPtr doc;
char buf[22];
time_t now = time(NULL);
doc = xmlNewDoc (XMLSTR("1.0"));
xmlnode = xmlNewDocNode (doc, NULL, XMLSTR("icestats"), NULL);
xmlDocSetRootElement(doc, xmlnode);
if (mount) {
xmlNewTextChild (xmlnode, NULL, XMLSTR("current_source"), XMLSTR(mount));
}
node = avl_get_first(global.source_tree);
while(node) {
source = (source_t *)node->key;
if (mount && strcmp (mount, source->mount) == 0)
{
node = avl_get_next (node);
continue;
}
if (source->running || source->on_demand)
{
ice_config_t *config;
mount_proxy *mountinfo;
acl_t *acl = NULL;
srcnode = xmlNewChild(xmlnode, NULL, XMLSTR("source"), NULL);
xmlSetProp(srcnode, XMLSTR("mount"), XMLSTR(source->mount));
xmlNewTextChild(srcnode, NULL, XMLSTR("fallback"),
(source->fallback_mount != NULL)?
XMLSTR(source->fallback_mount):XMLSTR(""));
snprintf(buf, sizeof(buf), "%lu", source->listeners);
xmlNewTextChild(srcnode, NULL, XMLSTR("listeners"), XMLSTR(buf));
config = config_get_config();
mountinfo = config_find_mount(config, source->mount, MOUNT_TYPE_NORMAL);
if (mountinfo)
acl = auth_stack_get_anonymous_acl(mountinfo->authstack, httpp_req_get);
if (!acl)
acl = auth_stack_get_anonymous_acl(config->authstack, httpp_req_get);
if (acl && acl_test_web(acl) == ACL_POLICY_DENY) {
xmlNewTextChild(srcnode, NULL, XMLSTR("authenticator"), XMLSTR("(dummy)"));
}
acl_release(acl);
config_release_config();
if (source->running) {
if (source->client) {
snprintf(buf, sizeof(buf), "%lu",
(unsigned long)(now - source->con->con_time));
xmlNewTextChild(srcnode, NULL, XMLSTR("Connected"), XMLSTR(buf));
}
xmlNewTextChild(srcnode, NULL, XMLSTR("content-type"),
XMLSTR(source->format->contenttype));
}
}
node = avl_get_next(node);
}
return(doc);
}
void admin_send_response(xmlDocPtr doc,
client_t *client,
int response,
const char *xslt_template)
{
if (response == RAW) {
xmlChar *buff = NULL;
int len = 0;
size_t buf_len;
ssize_t ret;
xmlDocDumpMemory(doc, &buff, &len);
buf_len = len + 1024;
if (buf_len < 4096)
buf_len = 4096;
client_set_queue(client, NULL);
client->refbuf = refbuf_new(buf_len);
ret = util_http_build_header(client->refbuf->data, buf_len, 0,
0, 200, NULL,
"text/xml", "utf-8",
NULL, NULL, client);
if (ret < 0) {
ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
client_send_error(client, 500, 0, "Header generation failed.");
xmlFree(buff);
return;
} else if (buf_len < (size_t)(len + ret + 64)) {
void *new_data;
buf_len = ret + len + 64;
new_data = realloc(client->refbuf->data, buf_len);
if (new_data) {
ICECAST_LOG_DEBUG("Client buffer reallocation succeeded.");
client->refbuf->data = new_data;
client->refbuf->len = buf_len;
ret = util_http_build_header(client->refbuf->data, buf_len, 0,
0, 200, NULL,
"text/xml", "utf-8",
NULL, NULL, client);
if (ret == -1) {
ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
client_send_error(client, 500, 0, "Header generation failed.");
xmlFree(buff);
return;
}
} else {
ICECAST_LOG_ERROR("Client buffer reallocation failed. Dropping client.");
client_send_error(client, 500, 0, "Buffer reallocation failed.");
xmlFree(buff);
return;
}
}
/* FIXME: in this section we hope no function will ever return -1 */
ret += snprintf (client->refbuf->data + ret, buf_len - ret, "Content-Length: %d\r\n\r\n%s", xmlStrlen(buff), buff);
client->refbuf->len = ret;
xmlFree(buff);
client->respcode = 200;
fserve_add_client (client, NULL);
}
if (response == TRANSFORMED) {
char *fullpath_xslt_template;
int fullpath_xslt_template_len;
ice_config_t *config = config_get_config();
fullpath_xslt_template_len = strlen (config->adminroot_dir) +
strlen (xslt_template) + 2;
fullpath_xslt_template = malloc(fullpath_xslt_template_len);
snprintf(fullpath_xslt_template, fullpath_xslt_template_len, "%s%s%s",
config->adminroot_dir, PATH_SEPARATOR, xslt_template);
config_release_config();
ICECAST_LOG_DEBUG("Sending XSLT (%s)", fullpath_xslt_template);
xslt_transform(doc, fullpath_xslt_template, client);
free(fullpath_xslt_template);
}
}
void admin_handle_request(client_t *client, const char *uri)
{
const char *mount;
const admin_command_handler_t* handler;
source_t *source = NULL;
ICECAST_LOG_DEBUG("Got admin request '%s'", uri);
handler = admin_get_handler(client->admin_command);
/* Check if admin command is valid */
if (handler == NULL) {
ICECAST_LOG_ERROR("Error parsing command string or unrecognised command: %H",
uri);
client_send_error(client, 400, 0, "Unrecognised command");
return;
}
/* Check ACL */
if (acl_test_admin(client->acl, client->admin_command) != ACL_POLICY_ALLOW) {
/* ACL disallows, check exceptions */
if ((handler->function == command_metadata && handler->format == RAW) &&
(acl_test_method(client->acl, httpp_req_source) == ACL_POLICY_ALLOW ||
acl_test_method(client->acl, httpp_req_put) == ACL_POLICY_ALLOW)) {
ICECAST_LOG_DEBUG("Granted right to call COMMAND_RAW_METADATA_UPDATE to "
"client because it is allowed to do SOURCE or PUT.");
} else {
client_send_error(client, 401, 1, "You need to authenticate\r\n");
return;
}
}
mount = httpp_get_query_param(client->parser, "mount");
/* Find mountpoint source */
if(mount != NULL) {
/* This is a mount request, handle it as such */
avl_tree_rlock(global.source_tree);
source = source_find_mount_raw(mount);
/* No Source found */
if (source == NULL) {
avl_tree_unlock(global.source_tree);
ICECAST_LOG_WARN("Admin command \"%H\" on non-existent source \"%H\"",
uri, mount);
client_send_error(client, 400, 0, "Source does not exist");
return;
} /* No Source running */
else if (source->running == 0 && source->on_demand == 0) {
avl_tree_unlock(global.source_tree);
ICECAST_LOG_INFO("Received admin command \"%H\" on unavailable mount \"%H\"",
uri, mount);
client_send_error(client, 400, 0, "Source is not available");
return;
}
ICECAST_LOG_INFO("Received admin command %H on mount '%s'",
uri, mount);
}
if (handler->type == ADMINTYPE_MOUNT && !source) {
client_send_error(client, 400, 0, "Mount parameter mandatory");
return;
}
handler->function(client, source, handler->format);
if (source) {
avl_tree_unlock(global.source_tree);
}
return;
}
static void html_success(client_t *client, char *message)
{
ssize_t ret;
ret = util_http_build_header(client->refbuf->data, PER_CLIENT_REFBUF_SIZE,
0, 0, 200, NULL,
"text/html", "utf-8",
"", NULL, client);
if (ret == -1 || ret >= PER_CLIENT_REFBUF_SIZE) {
ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
client_send_error(client, 500, 0, "Header generation failed.");
return;
}
snprintf(client->refbuf->data + ret, PER_CLIENT_REFBUF_SIZE - ret,
"<html><head><title>Admin request successful</title></head>"
"<body><p>%s</p></body></html>", message);
client->respcode = 200;
client->refbuf->len = strlen(client->refbuf->data);
fserve_add_client(client, NULL);
}
static void command_move_clients(client_t *client,
source_t *source,
int response)
{
const char *dest_source;
source_t *dest;
xmlDocPtr doc;
xmlNodePtr node;
char buf[255];
int parameters_passed = 0;
ICECAST_LOG_DEBUG("Doing optional check");
if((COMMAND_OPTIONAL(client, "destination", dest_source))) {
parameters_passed = 1;
}
ICECAST_LOG_DEBUG("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);
return;
}
dest = source_find_mount(dest_source);
if (dest == NULL) {
client_send_error(client, 400, 0, "No such destination");
return;
}
if (strcmp(dest->mount, source->mount) == 0) {
client_send_error(client, 400, 0, "supplied mountpoints are identical");
return;
}
if (dest->running == 0 && dest->on_demand == 0) {
client_send_error(client, 400, 0, "Destination not running");
return;
}
ICECAST_LOG_INFO("source is \"%s\", destination is \"%s\"", source->mount, dest->mount);
doc = xmlNewDoc(XMLSTR("1.0"));
node = xmlNewDocNode(doc, NULL, XMLSTR("iceresponse"), NULL);
xmlDocSetRootElement(doc, node);
source_move_clients(source, dest);
snprintf(buf, sizeof(buf), "Clients moved from %s to %s",
source->mount, dest_source);
xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR(buf));
xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("1"));
admin_send_response(doc, client, response, ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
}
static inline xmlNodePtr __add_listener(client_t *client,
xmlNodePtr parent,
time_t now,
operation_mode mode)
{
const char *tmp;
xmlNodePtr node;
char buf[22];
/* TODO: kh has support for a child node "lag". We should add that.
* BEFORE RELEASE NEXT DOCUMENT #2097: Changed case of child nodes to lower case.
* The case of <ID>, <IP>, <UserAgent> and <Connected> got changed to lower case.
*/
node = xmlNewChild(parent, NULL, XMLSTR("listener"), NULL);
if (!node)
return NULL;
memset(buf, '\000', sizeof(buf));
snprintf(buf, sizeof(buf)-1, "%lu", client->con->id);
xmlSetProp(node, XMLSTR("id"), XMLSTR(buf));
xmlNewTextChild(node, NULL, XMLSTR(mode == OMODE_LEGACY ? "ID" : "id"), XMLSTR(buf));
xmlNewTextChild(node, NULL, XMLSTR(mode == OMODE_LEGACY ? "IP" : "ip"), XMLSTR(client->con->ip));
tmp = httpp_getvar(client->parser, "user-agent");
if (tmp)
xmlNewTextChild(node, NULL, XMLSTR(mode == OMODE_LEGACY ? "UserAgent" : "useragent"), XMLSTR(tmp));
tmp = httpp_getvar(client->parser, "referer");
if (tmp)
xmlNewTextChild(node, NULL, XMLSTR("referer"), XMLSTR(tmp));
snprintf(buf, sizeof(buf), "%lu", (unsigned long)(now - client->con->con_time));
xmlNewTextChild(node, NULL, XMLSTR(mode == OMODE_LEGACY ? "Connected" : "connected"), XMLSTR(buf));
if (client->username)
xmlNewTextChild(node, NULL, XMLSTR("username"), XMLSTR(client->username));
if (client->role)
xmlNewTextChild(node, NULL, XMLSTR("role"), XMLSTR(client->role));
xmlNewTextChild(node, NULL, XMLSTR("tls"), XMLSTR(client->con->tls ? "true" : "false"));
switch (client->protocol) {
case ICECAST_PROTOCOL_HTTP:
xmlNewTextChild(node, NULL, XMLSTR("protocol"), XMLSTR("http"));
break;
case ICECAST_PROTOCOL_SHOUTCAST:
xmlNewTextChild(node, NULL, XMLSTR("protocol"), XMLSTR("icy"));
break;
}
return node;
}
void admin_add_listeners_to_mount(source_t *source,
xmlNodePtr parent,
operation_mode mode)
{
time_t now = time(NULL);
avl_node *client_node;
avl_tree_rlock(source->client_tree);
client_node = avl_get_first(source->client_tree);
while(client_node) {
__add_listener((client_t *)client_node->key, parent, now, mode);
client_node = avl_get_next(client_node);
}
avl_tree_unlock(source->client_tree);
}
static void command_show_listeners(client_t *client,
source_t *source,
int response)
{
xmlDocPtr doc;
xmlNodePtr node, srcnode;
char buf[22];
doc = xmlNewDoc(XMLSTR("1.0"));
node = xmlNewDocNode(doc, NULL, XMLSTR("icestats"), NULL);
srcnode = xmlNewChild(node, NULL, XMLSTR("source"), NULL);
xmlSetProp(srcnode, XMLSTR("mount"), XMLSTR(source->mount));
xmlDocSetRootElement(doc, node);
memset(buf, '\000', sizeof(buf));
snprintf (buf, sizeof(buf), "%lu", source->listeners);
/* BEFORE RELEASE NEXT DOCUMENT #2097: Changed "Listeners" to lower case. */
xmlNewTextChild(srcnode, NULL, XMLSTR(client->mode == OMODE_LEGACY ? "Listeners" : "listeners"), XMLSTR(buf));
admin_add_listeners_to_mount(source, srcnode, client->mode);
admin_send_response(doc, client, response,
LISTCLIENTS_TRANSFORMED_REQUEST);
xmlFreeDoc(doc);
}
static void command_buildm3u(client_t *client, source_t *source, int format)
{
const char *mount = source->mount;
const char *username = NULL;
const char *password = NULL;
ice_config_t *config;
ssize_t ret;
COMMAND_REQUIRE(client, "username", username);
COMMAND_REQUIRE(client, "password", password);
ret = util_http_build_header(client->refbuf->data, PER_CLIENT_REFBUF_SIZE,
0, 0, 200, NULL,
"audio/x-mpegurl", NULL,
NULL, NULL, client);
if (ret == -1 || ret >= (PER_CLIENT_REFBUF_SIZE - 512)) {
/* we want at least 512 Byte left for data */
ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
client_send_error(client, 500, 0, "Header generation failed.");
return;
}
config = config_get_config();
snprintf(client->refbuf->data + ret, PER_CLIENT_REFBUF_SIZE - ret,
"Content-Disposition: attachment; filename=listen.m3u\r\n\r\n"
"http://%s:%s@%s:%d%s\r\n",
username,
password,
config->hostname,
config->port,
mount
);
config_release_config();
client->respcode = 200;
client->refbuf->len = strlen (client->refbuf->data);
fserve_add_client (client, NULL);
}
xmlNodePtr admin_add_role_to_authentication(auth_t *auth, xmlNodePtr parent)
{
xmlNodePtr rolenode = xmlNewChild(parent, NULL, XMLSTR("role"), NULL);
char idbuf[32];
snprintf(idbuf, sizeof(idbuf), "%lu", auth->id);
xmlSetProp(rolenode, XMLSTR("id"), XMLSTR(idbuf));
if (auth->type)
xmlSetProp(rolenode, XMLSTR("type"), XMLSTR(auth->type));
if (auth->role)
xmlSetProp(rolenode, XMLSTR("name"), XMLSTR(auth->role));
if (auth->management_url)
xmlSetProp(rolenode, XMLSTR("management-url"), XMLSTR(auth->management_url));
xmlSetProp(rolenode, XMLSTR("can-adduser"), XMLSTR(auth->adduser ? "true" : "false"));
xmlSetProp(rolenode, XMLSTR("can-deleteuser"), XMLSTR(auth->deleteuser ? "true" : "false"));
xmlSetProp(rolenode, XMLSTR("can-listuser"), XMLSTR(auth->listuser ? "true" : "false"));
return rolenode;
}
static void command_manageauth(client_t *client, source_t *source, int response)
{
xmlDocPtr doc;
xmlNodePtr node, rolenode, usersnode, msgnode;
const char *action = NULL;
const char *username = NULL;
const char *idstring = NULL;
char *message = NULL;
int ret = AUTH_OK;
int error_code = 400;
const char *error_message = "missing parameter";
long unsigned int id;
ice_config_t *config = config_get_config();
auth_t *auth;
do {
/* get id */
COMMAND_REQUIRE(client, "id", idstring);
id = atol(idstring);
/* no find a auth_t for that id by looking up the config */
/* globals first */
auth = auth_stack_getbyid(config->authstack, id);
/* now mounts */
if (!auth) {
mount_proxy *mount = config->mounts;
while (mount) {
auth = auth_stack_getbyid(mount->authstack, id);
if (auth)
break;
mount = mount->next;
}
}
/* check if we found one */
if (auth == NULL) {
ICECAST_LOG_WARN("Client requested mangement for unknown role %lu", id);
error_code = 404;
error_message = "Role not found";
break;
}
COMMAND_OPTIONAL(client, "action", action);
COMMAND_OPTIONAL(client, "username", username);
if (action == NULL)
action = "list";
if (!strcmp(action, "add")) {
const char *password = NULL;
COMMAND_OPTIONAL(client, "password", password);
if (username == NULL || password == NULL) {
ICECAST_LOG_WARN("manage auth request add for %lu but no user/pass", id);
break;
}
if (!auth->adduser) {
error_message = "Adding users to role not supported by role";
break;
}
ret = auth->adduser(auth, username, password);
if (ret == AUTH_FAILED) {
message = strdup("User add failed - check the icecast error log");
} else if (ret == AUTH_USERADDED) {
message = strdup("User added");
} else if (ret == AUTH_USEREXISTS) {
message = strdup("User already exists - not added");
}
}
if (!strcmp(action, "delete")) {
if (username == NULL) {
ICECAST_LOG_WARN("manage auth request delete for %lu but no username", id);
break;
}
if (!auth->deleteuser) {
error_message = "Deleting users from role not supported by role";
break;
}
ret = auth->deleteuser(auth, username);
if (ret == AUTH_FAILED) {
message = strdup("User delete failed - check the icecast error log");
} else if (ret == AUTH_USERDELETED) {
message = strdup("User deleted");
}
}
doc = xmlNewDoc(XMLSTR("1.0"));
node = xmlNewDocNode(doc, NULL, XMLSTR("icestats"), NULL);
rolenode = admin_add_role_to_authentication(auth, node);
if (message) {
msgnode = xmlNewChild(node, NULL, XMLSTR("iceresponse"), NULL);
xmlNewTextChild(msgnode, NULL, XMLSTR("message"), XMLSTR(message));
}
xmlDocSetRootElement(doc, node);
if (auth && auth->listuser) {
usersnode = xmlNewChild(rolenode, NULL, XMLSTR("users"), NULL);
auth->listuser(auth, usersnode);
}
config_release_config();
auth_release(auth);
admin_send_response(doc, client, response,
MANAGEAUTH_TRANSFORMED_REQUEST);
free(message);
xmlFreeDoc(doc);
return;
} while (0);
config_release_config();
auth_release(auth);
client_send_error(client, error_code, 0, error_message);
}
static void command_kill_source(client_t *client,
source_t *source,
int response)
{
xmlDocPtr doc;
xmlNodePtr node;
doc = xmlNewDoc (XMLSTR("1.0"));
node = xmlNewDocNode(doc, NULL, XMLSTR("iceresponse"), NULL);
xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR("Source Removed"));
xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("1"));
xmlDocSetRootElement(doc, node);
source->running = 0;
admin_send_response(doc, client, response,
ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
}
static void command_kill_client(client_t *client,
source_t *source,
int response)
{
const 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(XMLSTR("1.0"));
node = xmlNewDocNode(doc, NULL, XMLSTR("iceresponse"), NULL);
xmlDocSetRootElement(doc, node);
ICECAST_LOG_DEBUG("Response is %d", response);
if(listener != NULL) {
ICECAST_LOG_INFO("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);
xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR(buf));
xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("1"));
}
else {
memset(buf, '\000', sizeof(buf));
snprintf(buf, sizeof(buf)-1, "Client %d not found", id);
xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR(buf));
xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("0"));
}
admin_send_response(doc, client, response,
ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
}
static void command_fallback(client_t *client,
source_t *source,
int response)
{
const char *fallback;
char *old;
ICECAST_LOG_DEBUG("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,
int response)
{
const char *action;
const char *song, *title, *artist, *charset;
format_plugin_t *plugin;
xmlDocPtr doc;
xmlNodePtr node;
int same_ip = 1;
doc = xmlNewDoc(XMLSTR("1.0"));
node = xmlNewDocNode(doc, NULL, XMLSTR("iceresponse"), NULL);
xmlDocSetRootElement(doc, node);
ICECAST_LOG_DEBUG("Got metadata update request");
if (source->parser && source->parser->req_type == httpp_req_put) {
ICECAST_LOG_ERROR("Got legacy SOURCE-style metadata update command on "
"source connected with PUT at mountpoint %s", source->mount);
}
COMMAND_REQUIRE(client, "mode", action);
COMMAND_OPTIONAL(client, "song", song);
COMMAND_OPTIONAL(client, "title", title);
COMMAND_OPTIONAL(client, "artist", artist);
COMMAND_OPTIONAL(client, "charset", charset);
if (strcmp (action, "updinfo") != 0) {
xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR("No such action"));
xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("0"));
admin_send_response(doc, client, response, ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
return;
}
plugin = source->format;
if (source->client && strcmp(client->con->ip, source->client->con->ip) != 0)
if (response == RAW && acl_test_admin(client->acl, client->admin_command) != ACL_POLICY_ALLOW)
same_ip = 0;
if (same_ip && plugin && plugin->set_tag) {
if (song) {
plugin->set_tag (plugin, "song", song, charset);
ICECAST_LOG_INFO("Metadata on mountpoint %s changed to \"%s\"", source->mount, song);
} else {
if (artist && title) {
plugin->set_tag(plugin, "title", title, charset);
plugin->set_tag(plugin, "artist", artist, charset);
ICECAST_LOG_INFO("Metadata on mountpoint %s changed to \"%s - %s\"",
source->mount, artist, title);
}
}
/* updates are now done, let them be pushed into the stream */
plugin->set_tag (plugin, NULL, NULL, NULL);
} else {
xmlNewTextChild(node, NULL, XMLSTR("message"),
XMLSTR("Mountpoint will not accept URL updates"));
xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("1"));
admin_send_response(doc, client, response,
ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
return;
}
xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR("Metadata update successful"));
xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("1"));
admin_send_response(doc, client, response, ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
}
static void command_shoutcast_metadata(client_t *client,
source_t *source,
int format)
{
const char *action;
const char *value;
int same_ip = 1;
ICECAST_LOG_DEBUG("Got shoutcast metadata update request");
if (source->shoutcast_compat == 0) {
ICECAST_LOG_ERROR("illegal change of metadata on non-shoutcast "
"compatible stream");
client_send_error(client, 400, 0, "illegal metadata call");
return;
}
if (source->parser->req_type == httpp_req_put) {
ICECAST_LOG_ERROR("Got legacy shoutcast-style metadata update command "
"on source connected with PUT at mountpoint %s", source->mount);
}
COMMAND_REQUIRE(client, "mode", action);
COMMAND_REQUIRE(client, "song", value);
if (strcmp (action, "updinfo") != 0) {
client_send_error(client, 400, 0, "No such action");
return;
}
if (source->client && strcmp (client->con->ip, source->client->con->ip) != 0)
if (acl_test_admin(client->acl, client->admin_command) != ACL_POLICY_ALLOW)
same_ip = 0;
if (same_ip && source->format && source->format->set_tag) {
source->format->set_tag (source->format, "title", value, NULL);
source->format->set_tag (source->format, NULL, NULL, NULL);
ICECAST_LOG_DEBUG("Metadata on mountpoint %s changed to \"%s\"",
source->mount, value);
html_success(client, "Metadata update successful");
} else {
client_send_error(client, 400, 0, "mountpoint will not accept URL updates");
}
}
static void command_stats(client_t *client, source_t *source, int response)
{
const char *mount = (source) ? source->mount : NULL;
xmlDocPtr doc;
ICECAST_LOG_DEBUG("Stats request, sending xml stats");
doc = stats_get_xml(1, mount, client->mode);
admin_send_response(doc, client, response, STATS_TRANSFORMED_REQUEST);
xmlFreeDoc(doc);
return;
}
static void command_queue_reload(client_t *client, source_t *source, int response)
{
xmlDocPtr doc;
xmlNodePtr node;
global_lock();
global.schedule_config_reread = 1;
global_unlock();
doc = xmlNewDoc (XMLSTR("1.0"));
node = xmlNewDocNode(doc, NULL, XMLSTR("iceresponse"), NULL);
xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR("Config reload queued"));
xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("1"));
xmlDocSetRootElement(doc, node);
admin_send_response(doc, client, response, ADMIN_XSL_RESPONSE);
xmlFreeDoc(doc);
}
static void command_list_mounts(client_t *client, source_t *source, int response)
{
ICECAST_LOG_DEBUG("List mounts request");
if (response == PLAINTEXT) {
ssize_t ret = util_http_build_header(client->refbuf->data,
PER_CLIENT_REFBUF_SIZE, 0,
0, 200, NULL,
"text/plain", "utf-8",
"", NULL, client);
if (ret == -1 || ret >= PER_CLIENT_REFBUF_SIZE) {
ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
client_send_error(client, 500, 0, "Header generation failed.");
return;
}
client->refbuf->len = strlen (client->refbuf->data);
client->respcode = 200;
client->refbuf->next = stats_get_streams ();
fserve_add_client (client, NULL);
} else {
xmlDocPtr doc;
avl_tree_rlock(global.source_tree);
doc = admin_build_sourcelist(NULL);
avl_tree_unlock(global.source_tree);
admin_send_response(doc, client, response,
LISTMOUNTS_TRANSFORMED_REQUEST);
xmlFreeDoc(doc);
}
}
static void command_updatemetadata(client_t *client,
source_t *source,
int response)
{
xmlDocPtr doc;
xmlNodePtr node, srcnode;
doc = xmlNewDoc(XMLSTR("1.0"));
node = xmlNewDocNode(doc, NULL, XMLSTR("icestats"), NULL);
srcnode = xmlNewChild(node, NULL, XMLSTR("source"), NULL);
xmlSetProp(srcnode, XMLSTR("mount"), XMLSTR(source->mount));
xmlDocSetRootElement(doc, node);
admin_send_response(doc, client, response,
UPDATEMETADATA_TRANSFORMED_REQUEST);
xmlFreeDoc(doc);
}
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