admin.c 43.7 KB
Newer Older
1 2 3 4 5
/* Icecast
 *
 * This program is distributed under the GNU General Public License, version 2.
 * A copy of this license is included with this source.
 *
6
 * Copyright 2000-2004, Jack Moffitt <jack@xiph.org,
7 8 9 10
 *                      Michael Smith <msmith@xiph.org>,
 *                      oddsock <oddsock@xiph.org>,
 *                      Karl Heyes <karl@xiph.org>
 *                      and others (see AUTHORS for details).
11
 * Copyright 2012-2018, Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
12 13
 */

14 15 16 17
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

18 19
#include <string.h>
#include <stdlib.h>
20 21
#include <stdarg.h>
#include <time.h>
22 23 24
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
25

26 27
#include "admin.h"
#include "compat.h"
28
#include "cfgfile.h"
29 30 31 32 33 34
#include "connection.h"
#include "refbuf.h"
#include "client.h"
#include "source.h"
#include "global.h"
#include "stats.h"
35
#include "xslt.h"
36
#include "fserve.h"
37
#include "errors.h"
38 39 40 41

#include "format.h"

#include "logging.h"
42
#include "auth.h"
43
#include "acl.h"
Ed "oddsock" Zaleski's avatar
Ed "oddsock" Zaleski committed
44 45 46
#ifdef _WIN32
#define snprintf _snprintf
#endif
47 48 49

#define CATMODULE "admin"

50 51
#define ADMIN_MAX_COMMAND_TABLES        8

52 53 54
/* Helper macros */
#define COMMAND_REQUIRE(client,name,var)                                \
    do {                                                                \
55
        (var) = httpp_get_param((client)->parser, (name));        \
56
        if((var) == NULL) {                                             \
57
            client_send_error_by_id(client, ICECAST_ERROR_ADMIN_MISSING_PARAMETER); \
58 59 60 61 62
            return;                                                     \
        }                                                               \
    } while(0);

#define COMMAND_OPTIONAL(client,name,var) \
63
(var) = httpp_get_param((client)->parser, (name))
64

65 66 67
/* special commands */
#define COMMAND_ERROR                      ADMIN_COMMAND_ERROR
#define COMMAND_ANY                        ADMIN_COMMAND_ANY
68

Marvin Scholz's avatar
Marvin Scholz committed
69
#define FALLBACK_RAW_REQUEST                "fallbacks"
70
#define FALLBACK_HTML_REQUEST               "fallbacks.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
71 72
#define SHOUTCAST_METADATA_REQUEST          "admin.cgi"
#define METADATA_RAW_REQUEST                "metadata"
73
#define METADATA_HTML_REQUEST               "metadata.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
74
#define LISTCLIENTS_RAW_REQUEST             "listclients"
75
#define LISTCLIENTS_HTML_REQUEST            "listclients.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
76
#define STATS_RAW_REQUEST                   "stats"
77
#define STATS_HTML_REQUEST                  "stats.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
78
#define QUEUE_RELOAD_RAW_REQUEST            "reloadconfig"
79
#define QUEUE_RELOAD_HTML_REQUEST           "reloadconfig.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
80
#define LISTMOUNTS_RAW_REQUEST              "listmounts"
81
#define LISTMOUNTS_HTML_REQUEST             "listmounts.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
82
#define STREAMLIST_RAW_REQUEST              "streamlist"
83
#define STREAMLIST_HTML_REQUEST             "streamlist.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
84 85
#define STREAMLIST_PLAINTEXT_REQUEST        "streamlist.txt"
#define MOVECLIENTS_RAW_REQUEST             "moveclients"
86
#define MOVECLIENTS_HTML_REQUEST            "moveclients.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
87
#define KILLCLIENT_RAW_REQUEST              "killclient"
88
#define KILLCLIENT_HTML_REQUEST             "killclient.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
89
#define KILLSOURCE_RAW_REQUEST              "killsource"
90
#define KILLSOURCE_HTML_REQUEST             "killsource.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
91 92
#define ADMIN_XSL_RESPONSE                  "response.xsl"
#define MANAGEAUTH_RAW_REQUEST              "manageauth"
93
#define MANAGEAUTH_HTML_REQUEST             "manageauth.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
94
#define UPDATEMETADATA_RAW_REQUEST          "updatemetadata"
95
#define UPDATEMETADATA_HTML_REQUEST         "updatemetadata.xsl"
Marvin Scholz's avatar
Marvin Scholz committed
96
#define DEFAULT_RAW_REQUEST                 ""
97
#define DEFAULT_HTML_REQUEST                ""
Marvin Scholz's avatar
Marvin Scholz committed
98
#define BUILDM3U_RAW_REQUEST                "buildm3u"
99

100 101 102 103 104 105
typedef struct {
    const char *prefix;
    size_t length;
    const admin_command_handler_t *handlers;
} admin_command_table_t;

106 107 108 109 110 111 112 113 114 115 116 117 118
static void command_fallback            (client_t *client, source_t *source, admin_format_t response);
static void command_metadata            (client_t *client, source_t *source, admin_format_t response);
static void command_shoutcast_metadata  (client_t *client, source_t *source, admin_format_t response);
static void command_show_listeners      (client_t *client, source_t *source, admin_format_t response);
static void command_stats               (client_t *client, source_t *source, admin_format_t response);
static void command_queue_reload        (client_t *client, source_t *source, admin_format_t response);
static void command_list_mounts         (client_t *client, source_t *source, admin_format_t response);
static void command_move_clients        (client_t *client, source_t *source, admin_format_t response);
static void command_kill_client         (client_t *client, source_t *source, admin_format_t response);
static void command_kill_source         (client_t *client, source_t *source, admin_format_t response);
static void command_manageauth          (client_t *client, source_t *source, admin_format_t response);
static void command_updatemetadata      (client_t *client, source_t *source, admin_format_t response);
static void command_buildm3u            (client_t *client, source_t *source, admin_format_t response);
Marvin Scholz's avatar
Marvin Scholz committed
119 120

static const admin_command_handler_t handlers[] = {
121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151
    { "*",                                  ADMINTYPE_GENERAL,      ADMIN_FORMAT_HTML,          NULL }, /* for ACL framework */
    { FALLBACK_RAW_REQUEST,                 ADMINTYPE_MOUNT,        ADMIN_FORMAT_RAW,           command_fallback },
    { FALLBACK_HTML_REQUEST,                ADMINTYPE_MOUNT,        ADMIN_FORMAT_HTML,          command_fallback },
    { METADATA_RAW_REQUEST,                 ADMINTYPE_MOUNT,        ADMIN_FORMAT_RAW,           command_metadata },
    { METADATA_HTML_REQUEST,                ADMINTYPE_MOUNT,        ADMIN_FORMAT_HTML,          command_metadata },
    { SHOUTCAST_METADATA_REQUEST,           ADMINTYPE_MOUNT,        ADMIN_FORMAT_HTML,          command_shoutcast_metadata },
    { LISTCLIENTS_RAW_REQUEST,              ADMINTYPE_MOUNT,        ADMIN_FORMAT_RAW,           command_show_listeners },
    { LISTCLIENTS_HTML_REQUEST,             ADMINTYPE_MOUNT,        ADMIN_FORMAT_HTML,          command_show_listeners },
    { STATS_RAW_REQUEST,                    ADMINTYPE_HYBRID,       ADMIN_FORMAT_RAW,           command_stats },
    { STATS_HTML_REQUEST,                   ADMINTYPE_HYBRID,       ADMIN_FORMAT_HTML,          command_stats },
    { "stats.xml",                          ADMINTYPE_HYBRID,       ADMIN_FORMAT_RAW,           command_stats },
    { QUEUE_RELOAD_RAW_REQUEST,             ADMINTYPE_GENERAL,      ADMIN_FORMAT_RAW,           command_queue_reload },
    { QUEUE_RELOAD_HTML_REQUEST,            ADMINTYPE_GENERAL,      ADMIN_FORMAT_HTML,          command_queue_reload },
    { LISTMOUNTS_RAW_REQUEST,               ADMINTYPE_GENERAL,      ADMIN_FORMAT_RAW,           command_list_mounts },
    { LISTMOUNTS_HTML_REQUEST,              ADMINTYPE_GENERAL,      ADMIN_FORMAT_HTML,          command_list_mounts },
    { STREAMLIST_RAW_REQUEST,               ADMINTYPE_GENERAL,      ADMIN_FORMAT_RAW,           command_list_mounts },
    { STREAMLIST_PLAINTEXT_REQUEST,         ADMINTYPE_GENERAL,      ADMIN_FORMAT_PLAINTEXT,     command_list_mounts },
    { STREAMLIST_HTML_REQUEST,              ADMINTYPE_GENERAL,      ADMIN_FORMAT_HTML,          command_list_mounts },
    { MOVECLIENTS_RAW_REQUEST,              ADMINTYPE_MOUNT,        ADMIN_FORMAT_RAW,           command_move_clients },
    { MOVECLIENTS_HTML_REQUEST,             ADMINTYPE_HYBRID,       ADMIN_FORMAT_HTML,          command_move_clients },
    { KILLCLIENT_RAW_REQUEST,               ADMINTYPE_MOUNT,        ADMIN_FORMAT_RAW,           command_kill_client },
    { KILLCLIENT_HTML_REQUEST,              ADMINTYPE_MOUNT,        ADMIN_FORMAT_HTML,          command_kill_client },
    { KILLSOURCE_RAW_REQUEST,               ADMINTYPE_MOUNT,        ADMIN_FORMAT_RAW,           command_kill_source },
    { KILLSOURCE_HTML_REQUEST,              ADMINTYPE_MOUNT,        ADMIN_FORMAT_HTML,          command_kill_source },
    { MANAGEAUTH_RAW_REQUEST,               ADMINTYPE_GENERAL,      ADMIN_FORMAT_RAW,           command_manageauth },
    { MANAGEAUTH_HTML_REQUEST,              ADMINTYPE_GENERAL,      ADMIN_FORMAT_HTML,          command_manageauth },
    { UPDATEMETADATA_RAW_REQUEST,           ADMINTYPE_MOUNT,        ADMIN_FORMAT_RAW,           command_updatemetadata },
    { UPDATEMETADATA_HTML_REQUEST,          ADMINTYPE_MOUNT,        ADMIN_FORMAT_HTML,          command_updatemetadata },
    { BUILDM3U_RAW_REQUEST,                 ADMINTYPE_MOUNT,        ADMIN_FORMAT_RAW,           command_buildm3u },
    { DEFAULT_HTML_REQUEST,                 ADMINTYPE_HYBRID,       ADMIN_FORMAT_HTML,          command_stats },
    { DEFAULT_RAW_REQUEST,                  ADMINTYPE_HYBRID,       ADMIN_FORMAT_HTML,          command_stats }
Philipp Schafft's avatar
Philipp Schafft committed
152 153
};

154
static admin_command_table_t command_tables[ADMIN_MAX_COMMAND_TABLES] = {
155 156 157
    {.prefix = NULL, .length = (sizeof(handlers)/sizeof(*handlers)), .handlers = handlers},
};

158 159 160 161 162 163 164 165 166 167 168
static inline int __is_command_table_valid(const admin_command_table_t * table)
{
    if (table == NULL)
        return 0;

    if (table->length == 0 || table->handlers == NULL)
        return 0;

    return 1;
}

169 170 171 172 173 174 175
static inline const admin_command_table_t * admin_get_table(admin_command_id_t command)
{
    size_t t = (command & 0x00FF0000) >> 16;

    if (t >= (sizeof(command_tables)/sizeof(*command_tables)))
        return NULL;

176 177 178
    if (!__is_command_table_valid(&(command_tables[t])))
        return NULL;

179 180 181 182 183 184 185 186 187 188 189 190 191
    return &(command_tables[t]);
}

static inline const admin_command_table_t * admin_get_table_by_prefix(const char *command)
{
    const char *end;
    size_t i;
    size_t len;

    end = strchr(command, '/');

    if (end == NULL) {
        for (i = 0; i < (sizeof(command_tables)/sizeof(*command_tables)); i++)
192
            if (command_tables[i].prefix == NULL && __is_command_table_valid(&(command_tables[i])))
193 194 195 196 197 198 199 200
                return &(command_tables[i]);

        return NULL;
    }

    len = end - command;

    for (i = 0; i < (sizeof(command_tables)/sizeof(*command_tables)); i++) {
201 202 203
        if (!__is_command_table_valid(&(command_tables[i])))
            continue;

204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221
        if (command_tables[i].prefix != NULL && strlen(command_tables[i].prefix) == len && strncmp(command_tables[i].prefix, command, len) == 0) {
            return &(command_tables[i]);
        }
    }

    return NULL;
}

static inline admin_command_id_t admin_get_command_by_table_and_index(const admin_command_table_t *table, size_t index)
{
    size_t t = table - command_tables;

    if (t >= (sizeof(command_tables)/sizeof(*command_tables)))
        return ADMIN_COMMAND_ERROR;

    if (index > 0x0FFFF)
        return ADMIN_COMMAND_ERROR;

222 223 224
    if (!__is_command_table_valid(table))
        return ADMIN_COMMAND_ERROR;

225 226 227 228 229 230 231
    return (t << 16) | index;
}

static inline size_t admin_get_index_by_command(admin_command_id_t command)
{
    return command & 0x0FFFF;
}
Marvin Scholz's avatar
Marvin Scholz committed
232

233
admin_command_id_t admin_get_command(const char *command)
Marvin Scholz's avatar
Marvin Scholz committed
234
{
Philipp Schafft's avatar
Philipp Schafft committed
235
    size_t i;
236 237
    const admin_command_table_t *table = admin_get_table_by_prefix(command);
    const char *suffix;
Philipp Schafft's avatar
Philipp Schafft committed
238

239 240 241 242 243 244 245 246 247 248 249 250 251
    if (table == NULL)
        return COMMAND_ERROR;

    suffix = strchr(command, '/');
    if (suffix != NULL) {
        suffix++;
    } else {
        suffix = command;
    }

    for (i = 0; i < table->length; i++)
        if (strcmp(table->handlers[i].route, suffix) == 0)
            return admin_get_command_by_table_and_index(table, i);
Philipp Schafft's avatar
Philipp Schafft committed
252 253 254 255

    return COMMAND_ERROR;
}

Marvin Scholz's avatar
Marvin Scholz committed
256 257
/* Get the command handler for command or NULL
 */
258
const admin_command_handler_t* admin_get_handler(admin_command_id_t command)
Marvin Scholz's avatar
Marvin Scholz committed
259
{
260 261
    const admin_command_table_t *table = admin_get_table(command);
    size_t index = admin_get_index_by_command(command);
Philipp Schafft's avatar
Philipp Schafft committed
262

263 264 265 266 267 268 269
    if (table == NULL)
        return NULL;

    if (index >= table->length)
        return NULL;

    return &(table->handlers[index]);
Marvin Scholz's avatar
Marvin Scholz committed
270 271 272 273 274
}

/* Get the command type for command
 * If the command is invalid, ADMINTYPE_ERROR is returned.
 */
275
int admin_get_command_type(admin_command_id_t command)
Marvin Scholz's avatar
Marvin Scholz committed
276 277
{
    const admin_command_handler_t* handler = admin_get_handler(command);
Philipp Schafft's avatar
Philipp Schafft committed
278

Marvin Scholz's avatar
Marvin Scholz committed
279 280
    if (handler != NULL)
        return handler->type;
Philipp Schafft's avatar
Philipp Schafft committed
281 282

    return ADMINTYPE_ERROR;
283 284
}

285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319
int admin_command_table_register(const char *prefix, size_t handlers_length, const admin_command_handler_t *handlers)
{
    size_t i;

    if (prefix == NULL || handlers_length == 0 || handlers == NULL)
        return -1;

    for (i = 0; i < (sizeof(command_tables)/sizeof(*command_tables)); i++) {
        if (__is_command_table_valid(&(command_tables[i])))
            continue;

        command_tables[i].prefix    = prefix;
        command_tables[i].length    = handlers_length;
        command_tables[i].handlers  = handlers;

        return 0;
    }

    return -1;
}

int admin_command_table_unregister(const char *prefix)
{
    size_t i;

    for (i = 0; i < (sizeof(command_tables)/sizeof(*command_tables)); i++) {
        if (command_tables[i].prefix != NULL && strcmp(command_tables[i].prefix, prefix) == 0) {
            memset(&(command_tables[i]), 0, sizeof(command_tables[i]));
            return 0;
        }
    }

    return -1;
}

320 321 322
/* 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 */
Marvin Scholz's avatar
Marvin Scholz committed
323
xmlDocPtr admin_build_sourcelist(const char *mount)
324 325 326 327 328 329 330 331
{
    avl_node *node;
    source_t *source;
    xmlNodePtr xmlnode, srcnode;
    xmlDocPtr doc;
    char buf[22];
    time_t now = time(NULL);

332 333
    doc = xmlNewDoc (XMLSTR("1.0"));
    xmlnode = xmlNewDocNode (doc, NULL, XMLSTR("icestats"), NULL);
334
    xmlDocSetRootElement(doc, xmlnode);
335

336
    if (mount) {
337
        xmlNewTextChild (xmlnode, NULL, XMLSTR("current_source"), XMLSTR(mount));
338 339 340 341 342
    }

    node = avl_get_first(global.source_tree);
    while(node) {
        source = (source_t *)node->key;
343 344 345 346 347 348
        if (mount && strcmp (mount, source->mount) == 0)
        {
            node = avl_get_next (node);
            continue;
        }

349
        if (source->running || source->on_demand)
350
        {
351 352
            ice_config_t *config;
            mount_proxy *mountinfo;
Philipp Schafft's avatar
Philipp Schafft committed
353
            acl_t *acl = NULL;
354

355 356
            srcnode = xmlNewChild(xmlnode, NULL, XMLSTR("source"), NULL);
            xmlSetProp(srcnode, XMLSTR("mount"), XMLSTR(source->mount));
357

358
            xmlNewTextChild(srcnode, NULL, XMLSTR("fallback"),
359
                    (source->fallback_mount != NULL)?
360
                    XMLSTR(source->fallback_mount):XMLSTR(""));
361
            snprintf(buf, sizeof(buf), "%lu", source->listeners);
362
            xmlNewTextChild(srcnode, NULL, XMLSTR("listeners"), XMLSTR(buf));
363

Karl Heyes's avatar
Karl Heyes committed
364
            config = config_get_config();
Marvin Scholz's avatar
Marvin Scholz committed
365
            mountinfo = config_find_mount(config, source->mount, MOUNT_TYPE_NORMAL);
Philipp Schafft's avatar
Philipp Schafft committed
366
            if (mountinfo)
367
                acl = auth_stack_get_anonymous_acl(mountinfo->authstack, httpp_req_get);
Philipp Schafft's avatar
Philipp Schafft committed
368
            if (!acl)
369
                acl = auth_stack_get_anonymous_acl(config->authstack, httpp_req_get);
Philipp Schafft's avatar
Philipp Schafft committed
370
            if (acl && acl_test_web(acl) == ACL_POLICY_DENY) {
371
                xmlNewTextChild(srcnode, NULL, XMLSTR("authenticator"), XMLSTR("(dummy)"));
372
            }
Philipp Schafft's avatar
Philipp Schafft committed
373
            acl_release(acl);
374 375
            config_release_config();

Marvin Scholz's avatar
Marvin Scholz committed
376 377 378 379
            if (source->running) {
                if (source->client) {
                    snprintf(buf, sizeof(buf), "%lu",
                        (unsigned long)(now - source->con->con_time));
380
                    xmlNewTextChild(srcnode, NULL, XMLSTR("Connected"), XMLSTR(buf));
Karl Heyes's avatar
Karl Heyes committed
381
                }
382
                xmlNewTextChild(srcnode, NULL, XMLSTR("content-type"),
Marvin Scholz's avatar
Marvin Scholz committed
383
                    XMLSTR(source->format->contenttype));
384
            }
385
        }
386 387 388 389 390
        node = avl_get_next(node);
    }
    return(doc);
}

391 392 393 394
void admin_send_response(xmlDocPtr       doc,
                         client_t       *client,
                         admin_format_t  response,
                         const char     *xslt_template)
395
{
396
    if (response == ADMIN_FORMAT_RAW) {
397 398
        xmlChar *buff = NULL;
        int len = 0;
399 400 401
        size_t buf_len;
        ssize_t ret;

402
        xmlDocDumpMemory(doc, &buff, &len);
403 404 405 406

        buf_len = len + 1024;
        if (buf_len < 4096)
            buf_len = 4096;
407

408 409
        client_set_queue(client, NULL);
        client->refbuf = refbuf_new(buf_len);
410

411 412 413
        ret = util_http_build_header(client->refbuf->data, buf_len, 0,
                                     0, 200, NULL,
                                     "text/xml", "utf-8",
414
                                     NULL, NULL, client);
Philipp Schafft's avatar
Philipp Schafft committed
415
        if (ret < 0) {
416
            ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
417
            client_send_error_by_id(client, ICECAST_ERROR_GEN_HEADER_GEN_FAILED);
418 419
            xmlFree(buff);
            return;
Philipp Schafft's avatar
Philipp Schafft committed
420
        } else if (buf_len < (size_t)(len + ret + 64)) {
421 422 423 424 425 426 427 428 429 430
            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",
431
                                             NULL, NULL, client);
432 433
                if (ret == -1) {
                    ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
434
                    client_send_error_by_id(client, ICECAST_ERROR_GEN_HEADER_GEN_FAILED);
435 436 437 438 439
                    xmlFree(buff);
                    return;
                }
            } else {
                ICECAST_LOG_ERROR("Client buffer reallocation failed. Dropping client.");
440
                client_send_error_by_id(client, ICECAST_ERROR_GEN_BUFFER_REALLOC);
441 442
                xmlFree(buff);
                return;
443
            }
444
        }
445

446
        /* FIXME: in this section we hope no function will ever return -1 */
447
        ret += snprintf (client->refbuf->data + ret, buf_len - ret, "Content-Length: %d\r\n\r\n%s", xmlStrlen(buff), buff);
448 449

        client->refbuf->len = ret;
450 451 452
        xmlFree(buff);
        client->respcode = 200;
        fserve_add_client (client, NULL);
453
    }
454
    if (response == ADMIN_FORMAT_HTML) {
455
        char *fullpath_xslt_template;
456
        size_t fullpath_xslt_template_len;
457 458
        ice_config_t *config = config_get_config();

459
        fullpath_xslt_template_len = strlen(config->adminroot_dir) + strlen(xslt_template) + strlen(PATH_SEPARATOR) + 1;
460 461
        fullpath_xslt_template = malloc(fullpath_xslt_template_len);
        snprintf(fullpath_xslt_template, fullpath_xslt_template_len, "%s%s%s",
462
            config->adminroot_dir, PATH_SEPARATOR, xslt_template);
463
        config_release_config();
464

465
        ICECAST_LOG_DEBUG("Sending XSLT (%s)", fullpath_xslt_template);
466
        xslt_transform(doc, fullpath_xslt_template, client, 200);
467 468 469
        free(fullpath_xslt_template);
    }
}
470

471
void admin_handle_request(client_t *client, const char *uri)
472
{
Marvin Scholz's avatar
Marvin Scholz committed
473 474 475
    const char *mount;
    const admin_command_handler_t* handler;
    source_t *source = NULL;
476
    admin_format_t format;
477

Marvin Scholz's avatar
Marvin Scholz committed
478
    ICECAST_LOG_DEBUG("Got admin request '%s'", uri);
479

Marvin Scholz's avatar
Marvin Scholz committed
480
    handler = admin_get_handler(client->admin_command);
481

Marvin Scholz's avatar
Marvin Scholz committed
482
    /* Check if admin command is valid */
483
    if (handler == NULL || handler->function == NULL) {
Marvin Scholz's avatar
Marvin Scholz committed
484 485
        ICECAST_LOG_ERROR("Error parsing command string or unrecognised command: %H",
                uri);
486
        client_send_error_by_id(client, ICECAST_ERROR_ADMIN_UNRECOGNISED_COMMAND);
487 488 489
        return;
    }

Marvin Scholz's avatar
Marvin Scholz committed
490
    /* Check ACL */
Philipp Schafft's avatar
Philipp Schafft committed
491
    if (acl_test_admin(client->acl, client->admin_command) != ACL_POLICY_ALLOW) {
Marvin Scholz's avatar
Marvin Scholz committed
492 493

        /* ACL disallows, check exceptions */
494
        if ((handler->function == command_metadata && handler->format == ADMIN_FORMAT_RAW) &&
Philipp Schafft's avatar
Philipp Schafft committed
495 496
            (acl_test_method(client->acl, httpp_req_source) == ACL_POLICY_ALLOW ||
             acl_test_method(client->acl, httpp_req_put)    == ACL_POLICY_ALLOW)) {
Marvin Scholz's avatar
Marvin Scholz committed
497 498
            ICECAST_LOG_DEBUG("Granted right to call COMMAND_RAW_METADATA_UPDATE to "
                "client because it is allowed to do SOURCE or PUT.");
Philipp Schafft's avatar
Philipp Schafft committed
499
        } else {
500
            client_send_error_by_id(client, ICECAST_ERROR_GEN_CLIENT_NEEDS_TO_AUTHENTICATE);
501 502
            return;
        }
503 504
    }

505
    COMMAND_OPTIONAL(client, "mount", mount);
506

Marvin Scholz's avatar
Marvin Scholz committed
507
    /* Find mountpoint source */
508
    if(mount != NULL) {
509

Philipp Schafft's avatar
Philipp Schafft committed
510
        /* This is a mount request, handle it as such */
511
        avl_tree_rlock(global.source_tree);
Michael Smith's avatar
Michael Smith committed
512
        source = source_find_mount_raw(mount);
513

Marvin Scholz's avatar
Marvin Scholz committed
514
        /* No Source found */
Marvin Scholz's avatar
Marvin Scholz committed
515
        if (source == NULL) {
516
            avl_tree_unlock(global.source_tree);
Marvin Scholz's avatar
Marvin Scholz committed
517 518
            ICECAST_LOG_WARN("Admin command \"%H\" on non-existent source \"%H\"",
                    uri, mount);
519
            client_send_error_by_id(client, ICECAST_ERROR_ADMIN_SOURCE_DOES_NOT_EXIST);
Marvin Scholz's avatar
Marvin Scholz committed
520 521 522
            return;
        } /* No Source running */
        else if (source->running == 0 && source->on_demand == 0) {
523
            avl_tree_unlock(global.source_tree);
Marvin Scholz's avatar
Marvin Scholz committed
524 525
            ICECAST_LOG_INFO("Received admin command \"%H\" on unavailable mount \"%H\"",
                    uri, mount);
526
            client_send_error_by_id(client, ICECAST_ERROR_ADMIN_SOURCE_IS_NOT_AVAILABLE);
Marvin Scholz's avatar
Marvin Scholz committed
527
            return;
528
        }
Marvin Scholz's avatar
Marvin Scholz committed
529 530
        ICECAST_LOG_INFO("Received admin command %H on mount '%s'",
                    uri, mount);
531 532
    }

Marvin Scholz's avatar
Marvin Scholz committed
533
    if (handler->type == ADMINTYPE_MOUNT && !source) {
534
        client_send_error_by_id(client, ICECAST_ERROR_ADMIN_MISSING_PARAMETER);
Marvin Scholz's avatar
Marvin Scholz committed
535
        return;
536 537
    }

538 539 540 541 542 543
    if (handler->format == ADMIN_FORMAT_AUTO) {
        format = client_get_admin_format_by_content_negotiation(client);
    } else {
        format = handler->format;
    }

544 545
    switch (client->parser->req_type) {
        case httpp_req_get:
546
        case httpp_req_post:
547 548 549 550 551 552 553 554 555 556 557
            handler->function(client, source, format);
        break;
        case httpp_req_options:
            client_send_204(client);
        break;
        default:
            ICECAST_LOG_ERROR("Wrong request type from client");
            client_send_error_by_id(client, ICECAST_ERROR_CON_UNKNOWN_REQUEST);
        break;
    }

Marvin Scholz's avatar
Marvin Scholz committed
558 559
    if (source) {
        avl_tree_unlock(global.source_tree);
560
    }
Marvin Scholz's avatar
Marvin Scholz committed
561
    return;
562 563
}

564
static void html_success(client_t *client, char *message)
565
{
566 567
    ssize_t ret;

Marvin Scholz's avatar
Marvin Scholz committed
568 569
    ret = util_http_build_header(client->refbuf->data, PER_CLIENT_REFBUF_SIZE,
                                 0, 0, 200, NULL,
570
                                 "text/html", "utf-8",
571
                                 "", NULL, client);
572 573 574

    if (ret == -1 || ret >= PER_CLIENT_REFBUF_SIZE) {
        ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
575
        client_send_error_by_id(client, ICECAST_ERROR_GEN_HEADER_GEN_FAILED);
576 577 578
        return;
    }

579
    snprintf(client->refbuf->data + ret, PER_CLIENT_REFBUF_SIZE - ret,
580 581
        "<html><head><title>Admin request successful</title></head>"
        "<body><p>%s</p></body></html>", message);
582

583
    client->respcode = 200;
Marvin Scholz's avatar
Marvin Scholz committed
584 585
    client->refbuf->len = strlen(client->refbuf->data);
    fserve_add_client(client, NULL);
586 587
}

588

Marvin Scholz's avatar
Marvin Scholz committed
589 590
static void command_move_clients(client_t   *client,
                                 source_t   *source,
591
                                 admin_format_t response)
592
{
593
    const char *dest_source;
594
    source_t *dest;
595 596 597 598 599
    xmlDocPtr doc;
    xmlNodePtr node;
    char buf[255];
    int parameters_passed = 0;

600
    ICECAST_LOG_DEBUG("Doing optional check");
601
    if((COMMAND_OPTIONAL(client, "destination", dest_source))) {
602 603
        parameters_passed = 1;
    }
604
    ICECAST_LOG_DEBUG("Done optional check (%d)", parameters_passed);
605 606
    if (!parameters_passed) {
        doc = admin_build_sourcelist(source->mount);
607
        admin_send_response(doc, client, response,
608
             MOVECLIENTS_HTML_REQUEST);
609 610 611
        xmlFreeDoc(doc);
        return;
    }
612

Marvin Scholz's avatar
Marvin Scholz committed
613
    dest = source_find_mount(dest_source);
614

Marvin Scholz's avatar
Marvin Scholz committed
615
    if (dest == NULL) {
616
        client_send_error_by_id(client, ICECAST_ERROR_ADMIN_NO_SUCH_DESTINATION);
617 618 619
        return;
    }

Marvin Scholz's avatar
Marvin Scholz committed
620
    if (strcmp(dest->mount, source->mount) == 0) {
621
        client_send_error_by_id(client, ICECAST_ERROR_ADMIN_SUPPLIED_MOUNTPOINTS_ARE_IDENTICAL);
622 623 624
        return;
    }

Marvin Scholz's avatar
Marvin Scholz committed
625
    if (dest->running == 0 && dest->on_demand == 0) {
626
        client_send_error_by_id(client, ICECAST_ERROR_ADMIN_DEST_NOT_RUNNING);
627 628 629
        return;
    }

630
    ICECAST_LOG_INFO("source is \"%s\", destination is \"%s\"", source->mount, dest->mount);
631

Marvin Scholz's avatar
Marvin Scholz committed
632
    doc = xmlNewDoc(XMLSTR("1.0"));
633
    node = xmlNewDocNode(doc, NULL, XMLSTR("iceresponse"), NULL);
634 635
    xmlDocSetRootElement(doc, node);

Marvin Scholz's avatar
Marvin Scholz committed
636
    source_move_clients(source, dest);
637

Marvin Scholz's avatar
Marvin Scholz committed
638
    snprintf(buf, sizeof(buf), "Clients moved from %s to %s",
639
        source->mount, dest_source);
640 641
    xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR(buf));
    xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("1"));
642

Marvin Scholz's avatar
Marvin Scholz committed
643
    admin_send_response(doc, client, response, ADMIN_XSL_RESPONSE);
644
    xmlFreeDoc(doc);
645 646
}

Marvin Scholz's avatar
Marvin Scholz committed
647 648 649 650 651
static inline xmlNodePtr __add_listener(client_t        *client,
                                        xmlNodePtr      parent,
                                        time_t          now,
                                        operation_mode  mode)
{
652 653 654 655
    const char *tmp;
    xmlNodePtr node;
    char buf[22];

Philipp Schafft's avatar
Philipp Schafft committed
656
    /* TODO: kh has support for a child node "lag". We should add that.
657 658
     * 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.
Philipp Schafft's avatar
Philipp Schafft committed
659
     */
660 661 662 663 664 665 666

    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);
Philipp Schafft's avatar
Philipp Schafft committed
667
    xmlSetProp(node, XMLSTR("id"), XMLSTR(buf));
668
    xmlNewTextChild(node, NULL, XMLSTR(mode == OMODE_LEGACY ? "ID" : "id"), XMLSTR(buf));
669

670
    xmlNewTextChild(node, NULL, XMLSTR(mode == OMODE_LEGACY ? "IP" : "ip"), XMLSTR(client->con->ip));
671 672 673

    tmp = httpp_getvar(client->parser, "user-agent");
    if (tmp)
674
        xmlNewTextChild(node, NULL, XMLSTR(mode == OMODE_LEGACY ? "UserAgent" : "useragent"), XMLSTR(tmp));
675 676 677

    tmp = httpp_getvar(client->parser, "referer");
    if (tmp)
678
        xmlNewTextChild(node, NULL, XMLSTR("referer"), XMLSTR(tmp));
679 680

    snprintf(buf, sizeof(buf), "%lu", (unsigned long)(now - client->con->con_time));
681
    xmlNewTextChild(node, NULL, XMLSTR(mode == OMODE_LEGACY ? "Connected" : "connected"), XMLSTR(buf));
682 683

    if (client->username)
684
        xmlNewTextChild(node, NULL, XMLSTR("username"), XMLSTR(client->username));
685

Philipp Schafft's avatar
Philipp Schafft committed
686
    if (client->role)
687
        xmlNewTextChild(node, NULL, XMLSTR("role"), XMLSTR(client->role));
Philipp Schafft's avatar
Philipp Schafft committed
688

689
    xmlNewTextChild(node, NULL, XMLSTR("tls"), XMLSTR(client->con->tls ? "true" : "false"));
690

691 692 693 694 695 696 697 698 699
    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;
    }

700 701 702
    return node;
}

Marvin Scholz's avatar
Marvin Scholz committed
703 704 705 706
void admin_add_listeners_to_mount(source_t          *source,
                                  xmlNodePtr        parent,
                                  operation_mode    mode)
{
707 708 709 710 711 712
    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) {
713
        __add_listener((client_t *)client_node->key, parent, now, mode);
714 715 716 717 718
        client_node = avl_get_next(client_node);
    }
    avl_tree_unlock(source->client_tree);
}

Marvin Scholz's avatar
Marvin Scholz committed
719 720
static void command_show_listeners(client_t *client,
                                   source_t *source,
721
                                   admin_format_t response)
722
{
723
    xmlDocPtr doc;
724
    xmlNodePtr node, srcnode;
725
    char buf[22];
726

727
    doc = xmlNewDoc(XMLSTR("1.0"));
728 729 730
    node = xmlNewDocNode(doc, NULL, XMLSTR("icestats"), NULL);
    srcnode = xmlNewChild(node, NULL, XMLSTR("source"), NULL);
    xmlSetProp(srcnode, XMLSTR("mount"), XMLSTR(source->mount));
731
    xmlDocSetRootElement(doc, node);
732

733
    memset(buf, '\000', sizeof(buf));
734
    snprintf (buf, sizeof(buf), "%lu", source->listeners);
735
    /* BEFORE RELEASE NEXT DOCUMENT #2097: Changed "Listeners" to lower case. */
736
    xmlNewTextChild(srcnode, NULL, XMLSTR(client->mode == OMODE_LEGACY ? "Listeners" : "listeners"), XMLSTR(buf));
737

738
    admin_add_listeners_to_mount(source, srcnode, client->mode);
739

740
    admin_send_response(doc, client, response,
741
        LISTCLIENTS_HTML_REQUEST);
742
    xmlFreeDoc(doc);
743 744
}

745
static void command_buildm3u(client_t *client, source_t *source, admin_format_t format)
746
{
Marvin Scholz's avatar
Marvin Scholz committed
747
    const char *mount = source->mount;
748 749
    const char *username = NULL;
    const char *password = NULL;
750
    ice_config_t *config;
751
    ssize_t ret;
752 753 754 755

    COMMAND_REQUIRE(client, "username", username);
    COMMAND_REQUIRE(client, "password", password);

Marvin Scholz's avatar
Marvin Scholz committed
756 757
    ret = util_http_build_header(client->refbuf->data, PER_CLIENT_REFBUF_SIZE,
                                 0, 0, 200, NULL,
758
                                 "audio/x-mpegurl", NULL,
759
                                 NULL, NULL, client);
760

Marvin Scholz's avatar
Marvin Scholz committed
761 762
    if (ret == -1 || ret >= (PER_CLIENT_REFBUF_SIZE - 512)) {
        /* we want at least 512 Byte left for data */
763
        ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
764
        client_send_error_by_id(client, ICECAST_ERROR_GEN_HEADER_GEN_FAILED);
765 766 767 768
        return;
    }


Karl Heyes's avatar
Karl Heyes committed
769
    config = config_get_config();
770
    snprintf(client->refbuf->data + ret, PER_CLIENT_REFBUF_SIZE - ret,
771
        "Content-Disposition: attachment; filename=listen.m3u\r\n\r\n"
772 773 774
        "http://%s:%s@%s:%d%s\r\n",
        username,
        password,
Karl Heyes's avatar
Karl Heyes committed
775 776
        config->hostname,
        config->port,
777
        mount
778
    );
Karl Heyes's avatar
Karl Heyes committed
779
    config_release_config();
780

781
    client->respcode = 200;
Karl Heyes's avatar
Karl Heyes committed
782 783
    client->refbuf->len = strlen (client->refbuf->data);
    fserve_add_client (client, NULL);
784
}
785

Marvin Scholz's avatar
Marvin Scholz committed
786 787
xmlNodePtr admin_add_role_to_authentication(auth_t *auth, xmlNodePtr parent)
{
788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806
    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;
}
807

808
static void command_manageauth(client_t *client, source_t *source, admin_format_t response)
Marvin Scholz's avatar
Marvin Scholz committed
809
{
810
    xmlDocPtr doc;
811
    xmlNodePtr node, rolenode, usersnode, msgnode;
812 813
    const char *action = NULL;
    const char *username = NULL;
814
    const char *idstring = NULL;
815 816
    char *message = NULL;
    int ret = AUTH_OK;
817
    int error_id = ICECAST_ERROR_ADMIN_missing_parameter;
818 819
    long unsigned int id;
    ice_config_t *config = config_get_config();
Philipp Schafft's avatar
Philipp Schafft committed
820
    auth_t *auth;
821

Marvin Scholz's avatar
Marvin Scholz committed
822
    do {
823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843
        /* 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);
844
            error_id = ICECAST_ERROR_ADMIN_ROLEMGN_ROLE_NOT_FOUND;
845
            break;
846
        }
Philipp Schafft's avatar
Philipp Schafft committed
847

848
        COMMAND_OPTIONAL(client, "action", action);
849
        COMMAND_OPTIONAL(client, "username", username);
850 851

        if (action == NULL)
852
            action = "list";
853

Marvin Scholz's avatar
Marvin Scholz committed
854
        if (!strcmp(action, "add")) {
855
            const char *password = NULL;
856
            COMMAND_OPTIONAL(client, "password", password);
857

858 859
            if (username == NULL || password == NULL) {
                ICECAST_LOG_WARN("manage auth request add for %lu but no user/pass", id);
860 861
                break;
            }
862 863

            if (!auth->adduser) {
864
                error_id = ICECAST_ERROR_ADMIN_ROLEMGN_ADD_NOSYS;
865 866 867
                break;
            }

Philipp Schafft's avatar
Philipp Schafft committed
868
            ret = auth->adduser(auth, username, password);
869 870
            if (ret == AUTH_FAILED) {
                message = strdup("User add failed - check the icecast error log");
871
            } else if (ret == AUTH_USERADDED) {
872
                message = strdup("User added");
873
            } else if (ret == AUTH_USEREXISTS) {
874 875 876
                message = strdup("User already exists - not added");
            }
        }
Marvin Scholz's avatar
Marvin Scholz committed
877
        if (!strcmp(action, "delete")) {
878 879 880 881 882 883
            if (username == NULL) {
                ICECAST_LOG_WARN("manage auth request delete for %lu but no username", id);
                break;
            }

            if (!auth->deleteuser) {
884
                error_id = ICECAST_ERROR_ADMIN_ROLEMGN_DELETE_NOSYS;
885 886
                break;
            }
887

Philipp Schafft's avatar
Philipp Schafft committed
888
            ret = auth->deleteuser(auth, username);
889 890
            if (ret == AUTH_FAILED) {
                message = strdup("User delete failed - check the icecast error log");
891
            } else if (ret == AUTH_USERDELETED) {
892 893 894 895
                message = strdup("User deleted");
            }
        }

896
        doc = xmlNewDoc(XMLSTR("1.0"));
897
        node = xmlNewDocNode(doc, NULL, XMLSTR("icestats"), NULL);
898

899
        rolenode = admin_add_role_to_authentication(auth, node);
900

901
        if (message) {
902
            msgnode = xmlNewChild(node, NULL, XMLSTR("iceresponse"), NULL);
903
            xmlNewTextChild(msgnode, NULL, XMLSTR("message"), XMLSTR(message));
904
        }
905

906
        xmlDocSetRootElement(doc, node);
907

908 909 910 911
        if (auth && auth->listuser) {
            usersnode = xmlNewChild(rolenode, NULL, XMLSTR("users"), NULL);
            auth->listuser(auth, usersnode);
        }
912

913 914
        config_release_config();
        auth_release(auth);
915

916
        admin_send_response(doc, client, response,
917
            MANAGEAUTH_HTML_REQUEST);
Marvin Scholz's avatar
Marvin Scholz committed
918
        free(message);
919 920 921 922
        xmlFreeDoc(doc);
        return;
    } while (0);

923 924
    config_release_config();
    auth_release(auth);
925
    client_send_error_by_id(client, error_id);
926 927
}

Marvin Scholz's avatar
Marvin Scholz committed
928 929
static void command_kill_source(client_t *client,
                                source_t *source,
930
                                admin_format_t response)
931
{
932 933 934
    xmlDocPtr doc;
    xmlNodePtr node;

935 936
    doc = xmlNewDoc (XMLSTR("1.0"));
    node = xmlNewDocNode(doc, NULL, XMLSTR("iceresponse"), NULL);
937 938
    xmlNewTextChild(node, NULL, XMLSTR("message"), XMLSTR("Source Removed"));
    xmlNewTextChild(node, NULL, XMLSTR("return"), XMLSTR("1"));
939 940
    xmlDocSetRootElement(doc, node);

941 942
    source->running = 0;

943
    admin_send_response(doc, client, response,
944 945
        ADMIN_XSL_RESPONSE);
    xmlFreeDoc(doc);
946 947
}

Marvin Scholz's avatar
Marvin Scholz committed
948 949
static void command_kill_client(client_t *client,
                                source_t *source,
950
                                admin_format_t response)
951
{
952
    const char *idtext;
953 954
    int id;
    client_t *listener;
955 956 957
    xmlDocPtr doc;
    xmlNodePtr node;
    char buf[50] = "";
958 959 960 961 962 963 964

    COMMAND_REQUIRE(client, "id", idtext);

    id = atoi(idtext);

    listener = source_find_client(source, id);

Marvin Scholz's avatar
Marvin Scholz committed
965
    doc = xmlNewDoc(XMLSTR("1.0"));
966
    node = xmlNewDocNode(doc, NULL, XMLSTR("iceresponse"), NULL);