admin.c 22.4 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
/* 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).
 */

13
14
15
16
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

17
18
#include <string.h>
#include <stdlib.h>
19
20
#include <stdarg.h>
#include <time.h>
21
22
23
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
24

25
#include "cfgfile.h"
26
27
28
29
30
31
32
#include "connection.h"
#include "refbuf.h"
#include "client.h"
#include "source.h"
#include "global.h"
#include "event.h"
#include "stats.h"
33
#include "os.h"
34
#include "xslt.h"
35
36
37
38
39

#include "format.h"
#include "format_mp3.h"

#include "logging.h"
Ed "oddsock" Zaleski's avatar
Ed "oddsock" Zaleski committed
40
41
42
#ifdef _WIN32
#define snprintf _snprintf
#endif
43
44
45

#define CATMODULE "admin"

46
47
48
#define COMMAND_ERROR             (-1)

/* Mount-specific commands */
49
#define COMMAND_RAW_FALLBACK        1
50
#define COMMAND_METADATA_UPDATE     2
51
52
53
54
55
56
#define COMMAND_RAW_SHOW_LISTENERS  3
#define COMMAND_RAW_MOVE_CLIENTS    4

#define COMMAND_TRANSFORMED_FALLBACK        50
#define COMMAND_TRANSFORMED_SHOW_LISTENERS  53
#define COMMAND_TRANSFORMED_MOVE_CLIENTS    54
57
58

/* Global commands */
Karl Heyes's avatar
Karl Heyes committed
59
60
61
62
63
64
65
#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
66

67
/* Client management commands */
Karl Heyes's avatar
Karl Heyes committed
68
69
70
71
#define COMMAND_RAW_KILL_CLIENT             301
#define COMMAND_RAW_KILL_SOURCE             302
#define COMMAND_TRANSFORMED_KILL_CLIENT     401
#define COMMAND_TRANSFORMED_KILL_SOURCE     402
72
73
74
75
76
77
78
79
80
81
82
83

#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"
84
#define STREAMLIST_PLAINTEXT_REQUEST "streamlist.txt"
85
86
87
88
89
90
91
92
93
94
95
96
#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 DEFAULT_RAW_REQUEST ""
#define DEFAULT_TRANSFORMED_REQUEST ""

#define RAW         1
#define TRANSFORMED 2
97
#define PLAINTEXT   3
98
99
int admin_get_command(char *command)
{
100
101
102
103
104
    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))
105
        return COMMAND_METADATA_UPDATE;
106
107
108
109
110
    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))
111
        return COMMAND_RAW_STATS;
112
113
    else if(!strcmp(command, STATS_TRANSFORMED_REQUEST))
        return COMMAND_TRANSFORMED_STATS;
114
115
    else if(!strcmp(command, "stats.xml")) /* The old way */
        return COMMAND_RAW_STATS;
116
117
118
119
120
    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))
121
        return COMMAND_RAW_LISTSTREAM;
122
123
    else if(!strcmp(command, STREAMLIST_PLAINTEXT_REQUEST))
        return COMMAND_PLAINTEXT_LISTSTREAM;
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
    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, DEFAULT_TRANSFORMED_REQUEST))
        return COMMAND_TRANSFORMED_STATS;
    else if(!strcmp(command, DEFAULT_RAW_REQUEST))
        return COMMAND_TRANSFORMED_STATS;
140
141
142
143
    else
        return COMMAND_ERROR;
}

144
static void command_fallback(client_t *client, source_t *source, int response);
145
static void command_metadata(client_t *client, source_t *source);
146
147
148
149
150
151
152
153
154
155
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_kill_source(client_t *client, source_t *source,
        int response);
156
157
158
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);
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
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);
175

176
177
178
179
180
181
182
183
184
185
186
187
188
189
    if (current_source) {
        xmlNewChild(xmlnode, NULL, "current_source", current_source);
    }

    node = avl_get_first(global.source_tree);
    while(node) {
        source = (source_t *)node->key;
        srcnode = xmlNewChild(xmlnode, NULL, "source", NULL);
        xmlSetProp(srcnode, "mount", source->mount);

        xmlNewChild(srcnode, NULL, "fallback", 
                    (source->fallback_mount != NULL)?
                    source->fallback_mount:"");
        memset(buf, '\000', sizeof(buf));
190
        snprintf(buf, sizeof(buf)-1, "%ld", source->listeners);
191
192
        xmlNewChild(srcnode, NULL, "listeners", buf);
        memset(buf, '\000', sizeof(buf));
193
        snprintf(buf, sizeof(buf)-1, "%ld", now - source->con->con_time);
194
195
196
197
198
199
200
201
202
203
204
        xmlNewChild(srcnode, NULL, "Connected", buf);
        xmlNewChild(srcnode, NULL, "Format", 
            source->format->format_description);
        node = avl_get_next(node);
    }
    return(doc);
}

void admin_send_response(xmlDocPtr doc, client_t *client, 
        int response, char *xslt_template)
{
205
    xmlChar *buff = NULL;
206
207
208
209
210
211
212
213
    int len = 0;
    ice_config_t *config;
    char *fullpath_xslt_template;
    int fullpath_xslt_template_len;
    char *adminwebroot;

    client->respcode = 200;
    if (response == RAW) {
214
        xmlDocDumpMemory(doc, &buff, &len);
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
        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);
    }
}
242
243
244
245
246
247
248
249
250
251
252
253
254
void admin_handle_request(client_t *client, char *uri)
{
    char *mount, *command_string;
    int command;

    if(strncmp("/admin/", uri, 7)) {
        ERROR0("Internal error: admin request isn't");
        client_send_401(client);
        return;
    }

    command_string = uri + 7;

255
    DEBUG1("Got command (%s)", command_string);
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
    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;

        /* This is a mount request, handle it as such */
271
272
        if(!connection_check_admin_pass(client->parser)) {
            if(!connection_check_source_pass(client->parser, mount)) {
273
                INFO1("Bad or missing password on mount modification admin "
274
275
276
277
                      "request (command: %s)", command_string);
                client_send_401(client);
                return;
            }
278
279
280
        }
        
        avl_tree_rlock(global.source_tree);
Michael Smith's avatar
Michael Smith committed
281
        source = source_find_mount_raw(mount);
282

283
284
        if (source == NULL)
        {
285
286
287
288
            WARN2("Admin command %s on non-existent source %s", 
                    command_string, mount);
            client_send_400(client, "Source does not exist");
        }
289
290
291
292
293
294
295
        else
        {
            INFO2("Received admin command %s on mount \"%s\"", 
                    command_string, mount);
            admin_handle_mount_request(client, source, command);
        }
        avl_tree_unlock(global.source_tree);
296
297
298
    }
    else {

299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
        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;
            }
317
318
319
320
321
322
323
324
325
326
        }
        
        admin_handle_general_request(client, command);
    }
}

static void admin_handle_general_request(client_t *client, int command)
{
    switch(command) {
        case COMMAND_RAW_STATS:
327
            command_stats(client, RAW);
328
            break;
329
330
        case COMMAND_RAW_LIST_MOUNTS:
            command_list_mounts(client, RAW);
331
332
            break;
        case COMMAND_RAW_LISTSTREAM:
333
334
            command_list_mounts(client, RAW);
            break;
335
336
337
        case COMMAND_PLAINTEXT_LISTSTREAM:
            command_list_mounts(client, PLAINTEXT);
            break;
338
339
340
341
342
343
344
345
346
347
348
        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);
349
            break;
350
351
352
353
354
355
356
357
358
359
360
        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) {
361
362
        case COMMAND_RAW_FALLBACK:
            command_fallback(client, source, RAW);
363
364
365
366
            break;
        case COMMAND_METADATA_UPDATE:
            command_metadata(client, source);
            break;
367
368
369
370
371
372
373
374
        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);
375
            break;
376
377
        case COMMAND_RAW_KILL_SOURCE:
            command_kill_source(client, source, RAW);
378
            break;
379
380
        case COMMAND_TRANSFORMED_FALLBACK:
            command_fallback(client, source, RAW);
381
            break;
382
383
384
385
386
387
388
389
390
391
392
        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);
393
            break;
394
395
396
        default:
            WARN0("Mount request not recognised");
            client_send_400(client, "Mount request unknown");
397
            break;
398
399
400
401
402
403
404
405
406
407
408
    }
}

#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);
409
410
#define COMMAND_OPTIONAL(client,name,var) \
    (var) = httpp_get_query_param((client)->parser, (name))
411

412
static void html_success(client_t *client, char *message)
413
414
415
416
417
418
419
420
421
422
423
424
{
    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);
}

425
426
427
428
429
430
431
432
433
434
435
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;
}

436
437
static void command_move_clients(client_t *client, source_t *source,
    int response)
438
439
440
{
    char *dest_source;
    source_t *dest;
441
442
443
444
445
446
    xmlDocPtr doc;
    xmlNodePtr node;
    char buf[255];
    int parameters_passed = 0;

    DEBUG0("Doing optional check");
447
    if((COMMAND_OPTIONAL(client, "destination", dest_source))) {
448
449
450
451
452
453
454
455
456
457
458
        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;
    }
459

460
461
462
463
464
465
466
467
    dest = source_find_mount (dest_source);

    if (dest == NULL)
    {
        client_send_400 (client, "No such destination");
        return;
    }

Karl Heyes's avatar
Karl Heyes committed
468
    if (strcmp (dest->mount, source->mount) == 0)
469
470
471
472
473
    {
        client_send_400 (client, "supplied mountpoints are identical");
        return;
    }

474
475
476
    if (dest->running == 0)
    {
        client_send_400 (client, "Destination not running");
477
478
479
        return;
    }

480
481
482
483
    doc = xmlNewDoc("1.0");
    node = xmlNewDocNode(doc, NULL, "iceresponse", NULL);
    xmlDocSetRootElement(doc, node);

484
    source_move_clients (source, dest);
485

486
    memset(buf, '\000', sizeof(buf));
487
488
    snprintf (buf, sizeof(buf), "Clients moved from %s to %s",
            source->mount, dest_source);
489
490
491
492
493
494
495
    xmlNewChild(node, NULL, "message", buf);
    xmlNewChild(node, NULL, "return", "1");

    admin_send_response(doc, client, response, 
        ADMIN_XSL_RESPONSE);
    xmlFreeDoc(doc);
    client_destroy(client);
496
497
}

498
499
static void command_show_listeners(client_t *client, source_t *source,
    int response)
500
{
501
502
    xmlDocPtr doc;
    xmlNodePtr node, srcnode, listenernode;
503
504
    avl_node *client_node;
    client_t *current;
505
506
    char buf[22];
    char *userAgent = NULL;
507
508
    time_t now = time(NULL);

509
510
511
512
513
    doc = xmlNewDoc("1.0");
    node = xmlNewDocNode(doc, NULL, "icestats", NULL);
    srcnode = xmlNewChild(node, NULL, "source", NULL);
    xmlSetProp(srcnode, "mount", source->mount);
    xmlDocSetRootElement(doc, node);
514

515
    memset(buf, '\000', sizeof(buf));
516
    snprintf(buf, sizeof(buf)-1, "%ld", source->listeners);
517
    xmlNewChild(srcnode, NULL, "Listeners", buf);
518
519
520
521
522
523

    avl_tree_rlock(source->client_tree);

    client_node = avl_get_first(source->client_tree);
    while(client_node) {
        current = (client_t *)client_node->key;
524
525
526
527
528
529
530
531
532
533
        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));
534
        snprintf(buf, sizeof(buf)-1, "%ld", now - current->con->con_time);
535
536
        xmlNewChild(listenernode, NULL, "Connected", buf);
        memset(buf, '\000', sizeof(buf));
537
        snprintf(buf, sizeof(buf)-1, "%lu", current->con->id);
538
        xmlNewChild(listenernode, NULL, "ID", buf);
539
540
541
542
        client_node = avl_get_next(client_node);
    }

    avl_tree_unlock(source->client_tree);
543
544
545
    admin_send_response(doc, client, response, 
        LISTCLIENTS_TRANSFORMED_REQUEST);
    xmlFreeDoc(doc);
546
547
548
    client_destroy(client);
}

549
550
static void command_kill_source(client_t *client, source_t *source,
    int response)
551
{
552
553
554
555
556
557
558
559
560
    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);

561
562
    source->running = 0;

563
564
565
566
    admin_send_response(doc, client, response, 
        ADMIN_XSL_RESPONSE);
    xmlFreeDoc(doc);
    client_destroy(client);
567
568
}

569
570
static void command_kill_client(client_t *client, source_t *source,
    int response)
571
572
573
574
{
    char *idtext;
    int id;
    client_t *listener;
575
576
577
    xmlDocPtr doc;
    xmlNodePtr node;
    char buf[50] = "";
578
579
580
581
582
583
584

    COMMAND_REQUIRE(client, "id", idtext);

    id = atoi(idtext);

    listener = source_find_client(source, id);

585
586
587
588
589
    doc = xmlNewDoc("1.0");
    node = xmlNewDocNode(doc, NULL, "iceresponse", NULL);
    xmlDocSetRootElement(doc, node);
    DEBUG1("Response is %d", response);

590
591
592
593
594
595
596
    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;
597
598
599
600
        memset(buf, '\000', sizeof(buf));
        snprintf(buf, sizeof(buf)-1, "Client %d removed", id);
        xmlNewChild(node, NULL, "message", buf);
        xmlNewChild(node, NULL, "return", "1");
601
602
    }
    else {
603
604
605
606
        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");
607
    }
608
609
610
611
    admin_send_response(doc, client, response, 
        ADMIN_XSL_RESPONSE);
    xmlFreeDoc(doc);
    client_destroy(client);
612
613
}

614
615
static void command_fallback(client_t *client, source_t *source,
    int response)
616
617
618
619
620
621
622
623
624
625
626
627
{
    char *fallback;
    char *old;

    DEBUG0("Got fallback request");

    COMMAND_REQUIRE(client, "fallback", fallback);

    old = source->fallback_mount;
    source->fallback_mount = strdup(fallback);
    free(old);

628
    html_success(client, "Fallback configured");
629
630
631
632
633
634
635
}

static void command_metadata(client_t *client, source_t *source)
{
    char *action;
    char *value;
    mp3_state *state;
636
637
638
639
#ifdef USE_YP
    int i;
    time_t current_time;
#endif
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663

    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;

    thread_mutex_lock(&(state->lock));
    free(state->metadata);
    state->metadata = strdup(value);
    state->metadata_age++;
    thread_mutex_unlock(&(state->lock));

664
665
    DEBUG2("Metadata on mountpoint %s changed to \"%s\"", 
        source->mount, value);
666
    stats_event(source->mount, "title", value);
667
668
669
670
671
672
673
674
675
676
#ifdef USE_YP
    /* If we get an update on the mountpoint, force a
       yp touch */
    current_time = time(NULL);
    for (i=0; i<source->num_yp_directories; i++) {
        source->ypdata[i]->yp_last_touch = current_time - 
            source->ypdata[i]->yp_touch_interval + 2;
    }
#endif

677

678
    html_success(client, "Metadata update successful");
679
680
}

681
682
683
static void command_stats(client_t *client, int response) {
    xmlDocPtr doc;

684
685
    DEBUG0("Stats request, sending xml stats");

686
687
688
    stats_get_xml(&doc);
    admin_send_response(doc, client, response, STATS_TRANSFORMED_REQUEST);
    xmlFreeDoc(doc);
689
690
691
692
    client_destroy(client);
    return;
}

693
694
static void command_list_mounts(client_t *client, int response) {
    xmlDocPtr doc;
695
696
    avl_node *node;
    source_t *source;
697
698
699
700

    DEBUG0("List mounts request");


701
702
    if (response == PLAINTEXT)
    {
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
        node = avl_get_first(global.source_tree);
		html_write(client, 
            "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n");
        while(node) {
            source = (source_t *)node->key;
            html_write(client, "%s\n", source->mount);
            node = avl_get_next(node);
        }
    }
    else {

        doc = admin_build_sourcelist(NULL);

        admin_send_response(doc, client, response, 
            LISTMOUNTS_TRANSFORMED_REQUEST);
        xmlFreeDoc(doc);
    }
720
    client_destroy(client);
721

722
723
724
    return;
}