* This file is part of DisOrder.
* Copyright (C) 2004-2008 Richard Kettlewell
*
- * This program is free software; you can redistribute it and/or modify
+ * This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <config.h>
-#include "types.h"
-
-#include <pwd.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <gcrypt.h>
-#include <stddef.h>
-#include <time.h>
-#include <limits.h>
-#include <pcre.h>
-#include <netdb.h>
-#include <netinet/in.h>
-
-#include "event.h"
-#include "server.h"
-#include "syscalls.h"
-#include "queue.h"
-#include "server-queue.h"
-#include "play.h"
-#include "log.h"
-#include "mem.h"
-#include "state.h"
-#include "charset.h"
-#include "split.h"
-#include "configuration.h"
-#include "hex.h"
-#include "rights.h"
-#include "trackdb.h"
-#include "table.h"
-#include "kvp.h"
-#include "mixer.h"
-#include "sink.h"
-#include "authhash.h"
-#include "plugin.h"
-#include "printf.h"
-#include "trackname.h"
-#include "eventlog.h"
-#include "defs.h"
-#include "cache.h"
-#include "unicode.h"
-#include "cookies.h"
-#include "base64.h"
-#include "hash.h"
-#include "mime.h"
-#include "sendmail.h"
-#include "wstat.h"
+#include "disorder-server.h"
#ifndef NONCE_SIZE
# define NONCE_SIZE 16
int pf;
};
+struct conn;
+
+/** @brief Signature for line reader callback
+ * @param c Connection
+ * @param line Line
+ * @return 0 if incomplete, 1 if complete
+ *
+ * @p line is 0-terminated and excludes the newline. It points into the
+ * input buffer so will become invalid shortly.
+ */
+typedef int line_reader_type(struct conn *c,
+ char *line);
+
+/** @brief Signature for with-body command callbacks
+ * @param c Connection
+ * @param body List of body lines
+ * @param nbody Number of body lines
+ * @param u As passed to fetch_body()
+ * @return 0 to suspend input, 1 if complete
+ *
+ * The body strings are allocated (so survive indefinitely) and don't include
+ * newlines.
+ */
+typedef int body_callback_type(struct conn *c,
+ char **body,
+ int nbody,
+ void *u);
+
/** @brief One client connection */
struct conn {
/** @brief Read commands from here */
rights_type rights;
/** @brief Next connection */
struct conn *next;
+ /** @brief True if pending rescan had 'wait' set */
+ int rescan_wait;
+ /** @brief Playlist that this connection locks */
+ const char *locked_playlist;
+ /** @brief When that playlist was locked */
+ time_t locked_when;
+ /** @brief Line reader function */
+ line_reader_type *line_reader;
+ /** @brief Called when command body has been read */
+ body_callback_type *body_callback;
+ /** @brief Passed to @c body_callback */
+ void *body_u;
+ /** @brief Accumulating body */
+ struct vector body[1];
};
/** @brief Linked list of connections */
size_t bytes,
int eof,
void *u);
+static int c_playlist_set_body(struct conn *c,
+ char **body,
+ int nbody,
+ void *u);
+static int fetch_body(struct conn *c,
+ body_callback_type body_callback,
+ void *u);
+static int body_line(struct conn *c, char *line);
+static int command(struct conn *c, char *line);
static const char *noyes[] = { "no", "yes" };
sink_writes(ev_writer_sink(c->w), "550 cannot resolve track\n");
return 1;
}
- q = queue_add(track, c->who, WHERE_BEFORE_RANDOM);
+ q = queue_add(track, c->who, WHERE_BEFORE_RANDOM, origin_picked);
queue_write();
/* If we added the first track, and something is playing, then prepare the
* new track. If nothing is playing then we don't bother as it wouldn't gain
return 1; /* completed */
}
+static void finished_rescan(void *ru) {
+ struct conn *const c = ru;
+
+ sink_writes(ev_writer_sink(c->w), "250 rescan completed\n");
+ /* Turn this connection back on */
+ ev_reader_enable(c->r);
+}
+
+static void start_fresh_rescan(void *ru) {
+ struct conn *const c = ru;
+
+ if(trackdb_rescan_underway()) {
+ /* Some other waiter beat us to it. However in this case we're happy to
+ * piggyback; the requirement is that a new rescan be started, not that it
+ * was _our_ rescan. */
+ if(c->rescan_wait) {
+ /* We block until the rescan completes */
+ trackdb_add_rescanned(finished_rescan, c);
+ } else {
+ /* We report that the new rescan has started */
+ sink_writes(ev_writer_sink(c->w), "250 rescan initiated\n");
+ /* Turn this connection back on */
+ ev_reader_enable(c->r);
+ }
+ } else {
+ /* We are the first connection to get a callback so we must start a
+ * rescan. */
+ if(c->rescan_wait) {
+ /* We want to block until the new rescan completes */
+ trackdb_rescan(c->ev, 1/*check*/, finished_rescan, c);
+ } else {
+ /* We can report back immediately */
+ trackdb_rescan(c->ev, 1/*check*/, 0, 0);
+ sink_writes(ev_writer_sink(c->w), "250 rescan initiated\n");
+ /* Turn this connection back on */
+ ev_reader_enable(c->r);
+ }
+ }
+}
+
static int c_rescan(struct conn *c,
- char attribute((unused)) **vec,
- int attribute((unused)) nvec) {
- info("S%x rescan by %s", c->tag, c->who);
- trackdb_rescan(c->ev, 1/*check*/);
- sink_writes(ev_writer_sink(c->w), "250 initiated rescan\n");
- return 1; /* completed */
+ char **vec,
+ int nvec) {
+ int flag_wait = 0, flag_fresh = 0, n;
+
+ /* Parse flags */
+ for(n = 0; n < nvec; ++n) {
+ if(!strcmp(vec[n], "wait"))
+ flag_wait = 1; /* wait for rescan to complete */
+#if 0
+ /* Currently disabled because untested (and hard to test). */
+ else if(!strcmp(vec[n], "fresh"))
+ flag_fresh = 1; /* don't piggyback underway rescan */
+#endif
+ else {
+ sink_writes(ev_writer_sink(c->w), "550 unknown flag\n");
+ return 1; /* completed */
+ }
+ }
+ /* Report what was requested */
+ info("S%x rescan by %s (%s %s)", c->tag, c->who,
+ flag_wait ? "wait" : "",
+ flag_fresh ? "fresh" : "");
+ if(trackdb_rescan_underway()) {
+ if(flag_fresh) {
+ /* We want a fresh rescan but there is already one underway. Arrange a
+ * callback when it completes and then set off a new one. */
+ c->rescan_wait = flag_wait;
+ trackdb_add_rescanned(start_fresh_rescan, c);
+ if(flag_wait)
+ return 0;
+ else {
+ sink_writes(ev_writer_sink(c->w), "250 rescan queued\n");
+ return 1;
+ }
+ } else {
+ /* There's a rescan underway, and it's acceptable to piggyback on it */
+ if(flag_wait) {
+ /* We want to block until completion. */
+ trackdb_add_rescanned(finished_rescan, c);
+ return 0;
+ } else {
+ /* We don't want to block. So we just report that things are in
+ * hand. */
+ sink_writes(ev_writer_sink(c->w), "250 rescan already underway\n");
+ return 1;
+ }
+ }
+ } else {
+ /* No rescan is underway. fresh is therefore irrelevant. */
+ if(flag_wait) {
+ /* We want to block until completion */
+ trackdb_rescan(c->ev, 1/*check*/, finished_rescan, c);
+ return 0;
+ } else {
+ /* We don't want to block. */
+ trackdb_rescan(c->ev, 1/*check*/, 0, 0);
+ sink_writes(ev_writer_sink(c->w), "250 rescan initiated\n");
+ return 1; /* completed */
+ }
+ }
}
static int c_version(struct conn *c,
static int c_get(struct conn *c,
char **vec,
int attribute((unused)) nvec) {
- const char *v;
+ const char *v, *track;
- if(vec[1][0] != '_' && (v = trackdb_get(vec[0], vec[1])))
+ if(!(track = trackdb_resolve(vec[0]))) {
+ sink_writes(ev_writer_sink(c->w), "550 cannot resolve track\n");
+ return 1;
+ }
+ if(vec[1][0] != '_' && (v = trackdb_get(track, vec[1])))
sink_printf(ev_writer_sink(c->w), "252 %s\n", quoteutf8(v));
else
sink_writes(ev_writer_sink(c->w), "555 not found\n");
static int c_set(struct conn *c,
char **vec,
int attribute((unused)) nvec) {
- if(vec[1][0] != '_' && !trackdb_set(vec[0], vec[1], vec[2]))
+ const char *track;
+
+ if(!(track = trackdb_resolve(vec[0]))) {
+ sink_writes(ev_writer_sink(c->w), "550 cannot resolve track\n");
+ return 1;
+ }
+ if(vec[1][0] != '_' && !trackdb_set(track, vec[1], vec[2]))
sink_writes(ev_writer_sink(c->w), "250 OK\n");
else
sink_writes(ev_writer_sink(c->w), "550 not found\n");
char **vec,
int attribute((unused)) nvec) {
struct kvp *k;
+ const char *track;
- k = trackdb_get_all(vec[0]);
+ if(!(track = trackdb_resolve(vec[0]))) {
+ sink_writes(ev_writer_sink(c->w), "550 cannot resolve track\n");
+ return 1;
+ }
+ k = trackdb_get_all(track);
sink_writes(ev_writer_sink(c->w), "253 prefs follow\n");
for(; k; k = k->next)
if(k->name[0] != '_') /* omit internal values */
static int c_exists(struct conn *c,
char **vec,
int attribute((unused)) nvec) {
+ /* trackdb_exists() does its own alias checking */
sink_printf(ev_writer_sink(c->w), "252 %s\n", noyes[trackdb_exists(vec[0])]);
return 1;
}
sink_writes(ev_writer_sink(c->w), "510 Prohibited\n");
return 1;
}
- if(mixer_control(&l, &r, set))
+ if(mixer_control(-1/*as configured*/, &l, &r, set))
sink_writes(ev_writer_sink(c->w), "550 error accessing mixer\n");
else {
sink_printf(ev_writer_sink(c->w), "252 %d %d\n", l, r);
if(!c->w || !c->r) {
/* This connection has gone up in smoke for some reason */
eventlog_remove(c->lo);
+ c->lo = 0;
return;
}
+ /* user_* messages are restricted */
+ if(!strncmp(msg, "user_", 5)) {
+ /* They are only sent to admin users */
+ if(!(c->rights & RIGHT_ADMIN))
+ return;
+ /* They are not sent over TCP connections unless remote user-management is
+ * enabled */
+ if(!config->remote_userman && !(c->rights & RIGHT__LOCAL))
+ return;
+ }
sink_printf(ev_writer_sink(c->w), "%"PRIxMAX" %s\n",
(uintmax_t)time(0), msg);
}
static int c_part(struct conn *c,
char **vec,
int attribute((unused)) nvec) {
+ const char *track;
+
+ if(!(track = trackdb_resolve(vec[0]))) {
+ sink_writes(ev_writer_sink(c->w), "550 cannot resolve track\n");
+ return 1;
+ }
sink_printf(ev_writer_sink(c->w), "252 %s\n",
- quoteutf8(trackdb_getpart(vec[0], vec[1], vec[2])));
+ quoteutf8(trackdb_getpart(track, vec[1], vec[2])));
return 1;
}
return 1;
}
-static int c_tags(struct conn *c,
- char attribute((unused)) **vec,
- int attribute((unused)) nvec) {
- char **tags = trackdb_alltags();
-
- sink_printf(ev_writer_sink(c->w), "253 Tag list follows\n");
- while(*tags) {
+static int list_response(struct conn *c,
+ const char *reply,
+ char **list) {
+ sink_printf(ev_writer_sink(c->w), "253 %s\n", reply);
+ while(*list) {
sink_printf(ev_writer_sink(c->w), "%s%s\n",
- **tags == '.' ? "." : "", *tags);
- ++tags;
+ **list == '.' ? "." : "", *list);
+ ++list;
}
sink_writes(ev_writer_sink(c->w), ".\n");
return 1; /* completed */
}
+static int c_tags(struct conn *c,
+ char attribute((unused)) **vec,
+ int attribute((unused)) nvec) {
+ return list_response(c, "Tag list follows", trackdb_alltags());
+}
+
static int c_set_global(struct conn *c,
char **vec,
int attribute((unused)) nvec) {
int nvec) {
const char *rights;
+ if(!config->remote_userman && !(c->rights & RIGHT__LOCAL)) {
+ error(0, "S%x: remote adduser", c->tag);
+ sink_writes(ev_writer_sink(c->w), "550 Remote user management is disabled\n");
+ return 1;
+ }
if(nvec > 2) {
rights = vec[2];
if(parse_rights(vec[2], 0, 1)) {
int attribute((unused)) nvec) {
struct conn *d;
+ if(!config->remote_userman && !(c->rights & RIGHT__LOCAL)) {
+ error(0, "S%x: remote deluser", c->tag);
+ sink_writes(ev_writer_sink(c->w), "550 Remote user management is disabled\n");
+ return 1;
+ }
if(trackdb_deluser(vec[0])) {
sink_writes(ev_writer_sink(c->w), "550 Cannot delete user\n");
return 1;
int attribute((unused)) nvec) {
struct conn *d;
+ if(!config->remote_userman && !(c->rights & RIGHT__LOCAL)) {
+ error(0, "S%x: remote edituser", c->tag);
+ sink_writes(ev_writer_sink(c->w), "550 Remote user management is disabled\n");
+ return 1;
+ }
/* RIGHT_ADMIN can do anything; otherwise you can only set your own email
* address and password. */
if((c->rights & RIGHT_ADMIN)
/* Update rights for this user */
rights_type r;
- if(parse_rights(vec[2], &r, 1))
- for(d = connections; d; d = d->next)
- if(!strcmp(d->who, vec[0]))
+ if(!parse_rights(vec[2], &r, 1)) {
+ const char *new_rights = rights_string(r);
+ for(d = connections; d; d = d->next) {
+ if(!strcmp(d->who, vec[0])) {
+ /* Update rights */
d->rights = r;
+ /* Notify any log connections */
+ if(d->lo)
+ sink_printf(ev_writer_sink(d->w),
+ "%"PRIxMAX" rights_changed %s\n",
+ (uintmax_t)time(0),
+ quoteutf8(new_rights));
+ }
+ }
+ }
}
sink_writes(ev_writer_sink(c->w), "250 OK\n");
} else {
struct kvp *k;
const char *value;
+ /* We allow remote querying of rights so that clients can figure out what
+ * they're allowed to do */
+ if(!config->remote_userman
+ && !(c->rights & RIGHT__LOCAL)
+ && strcmp(vec[1], "rights")) {
+ error(0, "S%x: remote userinfo %s %s", c->tag, vec[0], vec[1]);
+ sink_writes(ev_writer_sink(c->w), "550 Remote user management is disabled\n");
+ return 1;
+ }
/* RIGHT_ADMIN allows anything; otherwise you can only get your own email
- * address and righst list. */
+ * address and rights list. */
if((c->rights & RIGHT_ADMIN)
|| (!strcmp(c->who, vec[0])
&& (!strcmp(vec[1], "email")
static int c_users(struct conn *c,
char attribute((unused)) **vec,
int attribute((unused)) nvec) {
- /* TODO de-dupe with c_tags */
- char **users = trackdb_listusers();
-
- sink_writes(ev_writer_sink(c->w), "253 User list follows\n");
- while(*users) {
- sink_printf(ev_writer_sink(c->w), "%s%s\n",
- **users == '.' ? "." : "", *users);
- ++users;
- }
- sink_writes(ev_writer_sink(c->w), ".\n");
- return 1; /* completed */
+ return list_response(c, "User list follows", trackdb_listusers());
}
/** @brief Base64 mapping table for confirmation strings
return 1;
}
if(!(email = kvp_get(k, "email"))
- || !strchr(email, '@')) {
+ || !email_valid(email)) {
error(0, "user '%s' has no valid email address", vec[0]);
sink_writes(ev_writer_sink(c->w), "550 Cannot send a reminder email\n");
return 1;
return 0;
}
+static int c_schedule_list(struct conn *c,
+ char attribute((unused)) **vec,
+ int attribute((unused)) nvec) {
+ char **ids = schedule_list(0);
+ sink_writes(ev_writer_sink(c->w), "253 ID list follows\n");
+ while(*ids)
+ sink_printf(ev_writer_sink(c->w), "%s\n", *ids++);
+ sink_writes(ev_writer_sink(c->w), ".\n");
+ return 1; /* completed */
+}
+
+static int c_schedule_get(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ struct kvp *actiondata = schedule_get(vec[0]), *k;
+
+ if(!actiondata) {
+ sink_writes(ev_writer_sink(c->w), "555 No such event\n");
+ return 1; /* completed */
+ }
+ /* Scheduled events are public information. Anyone with RIGHT_READ can see
+ * them. */
+ sink_writes(ev_writer_sink(c->w), "253 Event information follows\n");
+ for(k = actiondata; k; k = k->next)
+ sink_printf(ev_writer_sink(c->w), " %s %s\n",
+ quoteutf8(k->name), quoteutf8(k->value));
+ sink_writes(ev_writer_sink(c->w), ".\n");
+ return 1; /* completed */
+}
+
+static int c_schedule_del(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ struct kvp *actiondata = schedule_get(vec[0]);
+
+ if(!actiondata) {
+ sink_writes(ev_writer_sink(c->w), "555 No such event\n");
+ return 1; /* completed */
+ }
+ /* If you have admin rights you can delete anything. If you don't then you
+ * can only delete your own scheduled events. */
+ if(!(c->rights & RIGHT_ADMIN)) {
+ const char *who = kvp_get(actiondata, "who");
+
+ if(!who || !c->who || strcmp(who, c->who)) {
+ sink_writes(ev_writer_sink(c->w), "551 Not authorized\n");
+ return 1; /* completed */
+ }
+ }
+ if(schedule_del(vec[0]))
+ sink_writes(ev_writer_sink(c->w), "550 Could not delete scheduled event\n");
+ else
+ sink_writes(ev_writer_sink(c->w), "250 Deleted\n");
+ return 1; /* completed */
+}
+
+static int c_schedule_add(struct conn *c,
+ char **vec,
+ int nvec) {
+ struct kvp *actiondata = 0;
+ const char *id;
+
+ /* Standard fields */
+ kvp_set(&actiondata, "who", c->who);
+ kvp_set(&actiondata, "when", vec[0]);
+ kvp_set(&actiondata, "priority", vec[1]);
+ kvp_set(&actiondata, "action", vec[2]);
+ /* Action-dependent fields */
+ if(!strcmp(vec[2], "play")) {
+ if(nvec != 4) {
+ sink_writes(ev_writer_sink(c->w), "550 Wrong number of arguments\n");
+ return 1;
+ }
+ if(!trackdb_exists(vec[3])) {
+ sink_writes(ev_writer_sink(c->w), "550 Track is not in database\n");
+ return 1;
+ }
+ kvp_set(&actiondata, "track", vec[3]);
+ } else if(!strcmp(vec[2], "set-global")) {
+ if(nvec < 4 || nvec > 5) {
+ sink_writes(ev_writer_sink(c->w), "550 Wrong number of arguments\n");
+ return 1;
+ }
+ kvp_set(&actiondata, "key", vec[3]);
+ if(nvec > 4)
+ kvp_set(&actiondata, "value", vec[4]);
+ } else {
+ sink_writes(ev_writer_sink(c->w), "550 Unknown action\n");
+ return 1;
+ }
+ /* schedule_add() checks user rights */
+ id = schedule_add(c->ev, actiondata);
+ if(!id)
+ sink_writes(ev_writer_sink(c->w), "550 Cannot add scheduled event\n");
+ else
+ sink_printf(ev_writer_sink(c->w), "252 %s\n", id);
+ return 1;
+}
+
+static int c_adopt(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ struct queue_entry *q;
+
+ if(!c->who) {
+ sink_writes(ev_writer_sink(c->w), "550 no identity\n");
+ return 1;
+ }
+ if(!(q = queue_find(vec[0]))) {
+ sink_writes(ev_writer_sink(c->w), "550 no such track on the queue\n");
+ return 1;
+ }
+ if(q->origin != origin_random) {
+ sink_writes(ev_writer_sink(c->w), "550 not a random track\n");
+ return 1;
+ }
+ q->origin = origin_adopted;
+ q->submitter = xstrdup(c->who);
+ eventlog("adopted", q->id, q->submitter, (char *)0);
+ queue_write();
+ sink_writes(ev_writer_sink(c->w), "250 OK\n");
+ return 1;
+}
+
+static int playlist_response(struct conn *c,
+ int err) {
+ switch(err) {
+ case 0:
+ assert(!"cannot cope with success");
+ case EACCES:
+ sink_writes(ev_writer_sink(c->w), "550 Access denied\n");
+ break;
+ case EINVAL:
+ sink_writes(ev_writer_sink(c->w), "550 Invalid playlist name\n");
+ break;
+ case ENOENT:
+ sink_writes(ev_writer_sink(c->w), "555 No such playlist\n");
+ break;
+ default:
+ sink_writes(ev_writer_sink(c->w), "550 Error accessing playlist\n");
+ break;
+ }
+ return 1;
+}
+
+static int c_playlist_get(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ char **tracks;
+ int err;
+
+ if(!(err = trackdb_playlist_get(vec[0], c->who, &tracks, 0, 0)))
+ return list_response(c, "Playlist contents follows", tracks);
+ else
+ return playlist_response(c, err);
+}
+
+static int c_playlist_set(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ return fetch_body(c, c_playlist_set_body, vec[0]);
+}
+
+static int c_playlist_set_body(struct conn *c,
+ char **body,
+ int nbody,
+ void *u) {
+ const char *playlist = u;
+ int err;
+
+ if(!c->locked_playlist
+ || strcmp(playlist, c->locked_playlist)) {
+ sink_writes(ev_writer_sink(c->w), "550 Playlist is not locked\n");
+ return 1;
+ }
+ if(!(err = trackdb_playlist_set(playlist, c->who,
+ body, nbody, 0))) {
+ sink_printf(ev_writer_sink(c->w), "250 OK\n");
+ return 1;
+ } else
+ return playlist_response(c, err);
+}
+
+static int c_playlist_get_share(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ char *share;
+ int err;
+
+ if(!(err = trackdb_playlist_get(vec[0], c->who, 0, 0, &share))) {
+ sink_printf(ev_writer_sink(c->w), "252 %s\n", quoteutf8(share));
+ return 1;
+ } else
+ return playlist_response(c, err);
+}
+
+static int c_playlist_set_share(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ int err;
+
+ if(!(err = trackdb_playlist_set(vec[0], c->who, 0, 0, vec[1]))) {
+ sink_printf(ev_writer_sink(c->w), "250 OK\n");
+ return 1;
+ } else
+ return playlist_response(c, err);
+}
+
+static int c_playlists(struct conn *c,
+ char attribute((unused)) **vec,
+ int attribute((unused)) nvec) {
+ char **p;
+
+ trackdb_playlist_list(c->who, &p, 0);
+ return list_response(c, "List of playlists follows", p);
+}
+
+static int c_playlist_delete(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ int err;
+
+ if(!(err = trackdb_playlist_delete(vec[0], c->who))) {
+ sink_writes(ev_writer_sink(c->w), "250 OK\n");
+ return 1;
+ } else
+ return playlist_response(c, err);
+}
+
+static int c_playlist_lock(struct conn *c,
+ char **vec,
+ int attribute((unused)) nvec) {
+ int err;
+ struct conn *cc;
+
+ /* Check we're allowed to modify this playlist */
+ if((err = trackdb_playlist_set(vec[0], c->who, 0, 0, 0)))
+ return playlist_response(c, err);
+ /* If we hold a lock don't allow a new one */
+ if(c->locked_playlist) {
+ sink_writes(ev_writer_sink(c->w), "550 Already holding a lock\n");
+ return 1;
+ }
+ /* See if some other connection locks the same playlist */
+ for(cc = connections; cc; cc = cc->next)
+ if(cc->locked_playlist && !strcmp(cc->locked_playlist, vec[0]))
+ break;
+ if(cc) {
+ /* TODO: implement config->playlist_lock_timeout */
+ sink_writes(ev_writer_sink(c->w), "550 Already locked\n");
+ return 1;
+ }
+ c->locked_playlist = xstrdup(vec[0]);
+ time(&c->locked_when);
+ sink_writes(ev_writer_sink(c->w), "250 Acquired lock\n");
+ return 1;
+}
+
+static int c_playlist_unlock(struct conn *c,
+ char attribute((unused)) **vec,
+ int attribute((unused)) nvec) {
+ if(!c->locked_playlist) {
+ sink_writes(ev_writer_sink(c->w), "550 Not holding a lock\n");
+ return 1;
+ }
+ c->locked_playlist = 0;
+ sink_writes(ev_writer_sink(c->w), "250 Released lock\n");
+ return 1;
+}
+
static const struct command {
/** @brief Command name */
const char *name;
rights_type rights;
} commands[] = {
{ "adduser", 2, 3, c_adduser, RIGHT_ADMIN|RIGHT__LOCAL },
+ { "adopt", 1, 1, c_adopt, RIGHT_PLAY },
{ "allfiles", 0, 2, c_allfiles, RIGHT_READ },
{ "confirm", 1, 1, c_confirm, 0 },
{ "cookie", 1, 1, c_cookie, 0 },
{ "pause", 0, 0, c_pause, RIGHT_PAUSE },
{ "play", 1, 1, c_play, RIGHT_PLAY },
{ "playing", 0, 0, c_playing, RIGHT_READ },
+ { "playlist-delete", 1, 1, c_playlist_delete, RIGHT_PLAY },
+ { "playlist-get", 1, 1, c_playlist_get, RIGHT_READ },
+ { "playlist-get-share", 1, 1, c_playlist_get_share, RIGHT_READ },
+ { "playlist-lock", 1, 1, c_playlist_lock, RIGHT_PLAY },
+ { "playlist-set", 1, 1, c_playlist_set, RIGHT_PLAY },
+ { "playlist-set-share", 2, 2, c_playlist_set_share, RIGHT_PLAY },
+ { "playlist-unlock", 0, 0, c_playlist_unlock, RIGHT_PLAY },
+ { "playlists", 0, 0, c_playlists, RIGHT_READ },
{ "prefs", 1, 1, c_prefs, RIGHT_READ },
{ "queue", 0, 0, c_queue, RIGHT_READ },
{ "random-disable", 0, 0, c_random_disable, RIGHT_GLOBAL_PREFS },
{ "register", 3, 3, c_register, RIGHT_REGISTER|RIGHT__LOCAL },
{ "reminder", 1, 1, c_reminder, RIGHT__LOCAL },
{ "remove", 1, 1, c_remove, RIGHT_REMOVE__MASK },
- { "rescan", 0, 0, c_rescan, RIGHT_RESCAN },
+ { "rescan", 0, INT_MAX, c_rescan, RIGHT_RESCAN },
{ "resolve", 1, 1, c_resolve, RIGHT_READ },
{ "resume", 0, 0, c_resume, RIGHT_PAUSE },
{ "revoke", 0, 0, c_revoke, RIGHT_READ },
{ "rtp-address", 0, 0, c_rtp_address, 0 },
+ { "schedule-add", 3, INT_MAX, c_schedule_add, RIGHT_READ },
+ { "schedule-del", 1, 1, c_schedule_del, RIGHT_READ },
+ { "schedule-get", 1, 1, c_schedule_get, RIGHT_READ },
+ { "schedule-list", 0, 0, c_schedule_list, RIGHT_READ },
{ "scratch", 0, 1, c_scratch, RIGHT_SCRATCH__MASK },
{ "search", 1, 1, c_search, RIGHT_READ },
{ "set", 3, 3, c_set, RIGHT_PREFS, },
{ "volume", 0, 2, c_volume, RIGHT_READ|RIGHT_VOLUME }
};
+/** @brief Fetch a command body
+ * @param c Connection
+ * @param body_callback Called with body
+ * @param u Passed to body_callback
+ * @return 1
+ */
+static int fetch_body(struct conn *c,
+ body_callback_type body_callback,
+ void *u) {
+ assert(c->line_reader == command);
+ c->line_reader = body_line;
+ c->body_callback = body_callback;
+ c->body_u = u;
+ vector_init(c->body);
+ return 1;
+}
+
+/** @brief @ref line_reader_type callback for command body lines
+ * @param c Connection
+ * @param line Line
+ * @return 1 if complete, 0 if incomplete
+ *
+ * Called from reader_callback().
+ */
+static int body_line(struct conn *c,
+ char *line) {
+ if(*line == '.') {
+ ++line;
+ if(!*line) {
+ /* That's the lot */
+ c->line_reader = command;
+ vector_terminate(c->body);
+ return c->body_callback(c, c->body->vec, c->body->nvec, c->body_u);
+ }
+ }
+ vector_append(c->body, xstrdup(line));
+ return 1; /* completed */
+}
+
static void command_error(const char *msg, void *u) {
struct conn *c = u;
sink_printf(ev_writer_sink(c->w), "500 parse error: %s\n", msg);
}
-/* process a command. Return 1 if complete, 0 if incomplete. */
+/** @brief @ref line_reader_type callback for commands
+ * @param c Connection
+ * @param line Line
+ * @return 1 if complete, 0 if incomplete
+ *
+ * Called from reader_callback().
+ */
static int command(struct conn *c, char *line) {
char **vec;
int nvec, n;
sink_writes(ev_writer_sink(c->w), "500 do what?\n");
return 1;
}
- if((n = TABLE_FIND(commands, struct command, name, vec[0])) < 0)
+ if((n = TABLE_FIND(commands, name, vec[0])) < 0)
sink_writes(ev_writer_sink(c->w), "500 unknown command\n");
else {
if(commands[n].rights
while((eol = memchr(ptr, '\n', bytes))) {
*eol++ = 0;
ev_reader_consume(reader, eol - (char *)ptr);
- complete = command(c, ptr);
+ complete = c->line_reader(c, ptr); /* usually command() */
bytes -= (eol - (char *)ptr);
ptr = eol;
if(!complete) {
D(("server listen_callback fd %d (%s)", fd, l->name));
nonblock(fd);
cloexec(fd);
+ c->next = connections;
c->tag = tags++;
c->ev = ev;
c->w = ev_writer_new(ev, fd, writer_error, c,
"client writer");
+ if(!c->w) {
+ error(0, "ev_writer_new for file inbound connection (fd=%d) failed",
+ fd);
+ close(fd);
+ return 0;
+ }
c->r = ev_reader_new(ev, fd, redirect_reader_callback, reader_error, c,
"client reader");
+ if(!c->r)
+ /* Main reason for failure is the FD is too big and that will already have
+ * been handled */
+ fatal(0, "ev_reader_new for file inbound connection (fd=%d) failed", fd);
ev_tie(c->r, c->w);
c->fd = fd;
c->reader = reader_callback;
c->l = l;
c->rights = 0;
+ c->line_reader = command;
+ connections = c;
gcry_randomize(c->nonce, sizeof c->nonce, GCRY_STRONG_RANDOM);
sink_printf(ev_writer_sink(c->w), "231 %d %s %s\n",
2,
~mdw / disorder / blobdiff