2 .\" Copyright (C) 2004, 2005, 2006, 2007 Richard Kettlewell
4 .\" This program is free software; you can redistribute it and/or modify
5 .\" it under the terms of the GNU General Public License as published by
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10 .\" WITHOUT ANY WARRANTY; without even the implied warranty of
11 .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 .\" General Public License for more details.
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16 .\" Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
21 pkgconfdir/config - DisOrder jukebox configuration
23 The purpose of DisOrder is to organize and play digital audio files, under the
24 control of multiple users. \fIpkgconfdir/config\fR is the primary
25 configuration file but this man page currently documents all of its various
28 DisOrder can be configured with multiple collections of tracks, indexing them
29 by their filename, and picking players on the basis of filename patterns (for
32 Although the model is of filenames, it is not inherent that there are
33 corresponding real files - merely that they can be interpreted by the chosen
34 player. See \fBdisorder\fR(3) for more details about this.
36 Each track can have a set of preferences associated with it. These are simple
37 key-value pairs; they can be used for anything you like, but a number of keys
38 have specific meanings. See \fBdisorder\fR(1) for more details about these.
40 Track names are derived from filenames under the control of regular
41 expressions, rather than attempting to interpret format-specific embedded name
42 information. They can be overridden by setting preferences.
44 Names for display are distinguished from names for sorting, so with the right
45 underlying filenames an album can be displayed in its original order even if
46 the displayed track titles are not lexically sorted.
48 A collection of global preferences define various bits of server state: whether
49 random play is enabled, what tags to check for when picking at random, etc.
50 .SS "Users And Access Control"
51 DisOrder distinguishes between multiple users. This is for access control and
52 reporting, not to provide different views of the world: i.e. preferences and so
55 Each user has an associated set of rights which contorl which commands they may
56 execute. Normally you would give all users most rights, and expect them to
57 cooperate (they are after all presumed to be in a shared sound environment).
59 The full set of rights are:
62 User can perform read-only operations
65 User can add tracks to the queue
68 User can move any track
71 User can move their own tracks
74 User can move randomly chosen tracks
77 User can remove any track
80 User can remove their own tracks
83 User can remove randomly chosen tracks
86 User can scratch any track
89 User can scratch their own tracks
92 User can scratch randomly chosen tracks
95 User can change the volume
98 User can perform admin operations
101 User can initiate a rescan
104 User can register new users. Normally only the
106 user would have this right.
109 User can edit their own userinfo
112 User can modify track preferences
115 User can modify global preferences
118 User can pause/resume
120 Access control is entirely used-based. If you configure DisOrder to listen for
121 TCP/IP connections then it will accept a connection from anywhere provided the
122 right password is available. Passwords are never transmitted over TCP/IP
123 connections in clear, but everything else is. The expected model is that
124 host-based access control is imposed at the network layer.
126 The web interface is controlled by a collection of template files, one for each
127 kind of page, and a collection of option files. These are split up and
128 separate from the main configuration file to make it more convenient to
129 override specific bits.
131 The web interface connects to the DisOrder server like any other user, though
132 it is given a special privilege to "become" any other user. (Thus, any process
133 with the same UID as the web interface is very powerful as far as DisOrder
134 goes. This model will be changed in a future version.)
136 Access control to the web interface is (currently) separate from DisOrder's own
137 access control (HTTP authentication is required) but uses the same user
139 .SS "Searching And Tags"
140 Search strings contain a list of search terms separated by spaces. A search
141 term can either be a single word or a tag, prefixed with "tag:".
143 Search words are compared without regard to letter case or accents; thus, all
144 of the following will be considered to be equal to one another:
147 LATIN CAPITAL LETTER E
149 LATIN CAPITAL LETTER E WITH GRAVE
150 LATIN SMALL LETTER E WITH GRAVE
151 LATIN CAPITAL LETTER E plus COMBINING GRAVE ACCENT
152 LATIN SMALL LETTER E plus COMBINING GRAVE ACCENT
155 The same rules apply to tags but in addition leading and trailing whitespace is
156 disregarded and all whitespace sequences are treated as equal when they appear
157 as internal whitespace.
159 Where several tags are listed, for instance the tags preference for a track,
160 the tags are separated by commas. Therefore tags may not contain commas.
161 .SH "CONFIGURATION FILE"
163 Lines are split into fields separated by whitespace (space, tab, line
164 feed, carriage return, form feed). Comments are started by the number
167 Fields may be unquoted (in which case they may not contain spaces and
168 may not start with a quotation mark or apostrophe) or quoted by either
169 quotation marks or apostrophes. Inside quoted fields every character
170 stands for itself, except that a backslash can only appear as part of
171 one of the following escape sequences:
186 No other escape sequences are allowed.
188 Within any line the first field is a configuration command and any
189 further fields are parameters. Lines with no fields are ignored.
191 After editing the config file use \fBdisorder reconfigure\fR to make
192 it re-read it. If there is anything wrong with it the daemon will
193 record a log message and ignore the new config file. (You should fix
194 it before next terminating and restarting the daemon, as it cannot
195 start up without a valid config file.)
196 .SS "Configuration Files"
197 Configuration files are read in the following order:
201 .I pkgconfdir/config.private
202 Should be readable only by the jukebox group. Not really useful any more and
203 may be abolished in future.
205 .I pkgconfdir/config.\fRUSER
206 Per-user system-controlled client configuration. Optional but if it
207 exists must be readable only by the relevant user. Would normally
208 contain a \fBpassword\fR directive.
210 .I ~\fRUSER\fI/.disorder/passwd
211 Per-user client configuration. Optional but if it exists must be
212 readable only by the relevant user. Would normally contain a
213 \fBpassword\fR directive.
214 .SS "Global Configuration"
216 .B home \fIDIRECTORY\fR
217 The home directory for state files. Defaults to
219 The server will create this directory on startup if it does not exist.
221 .B plugins \fIPATH\fR
222 Adds a directory to the plugin path. (This is also used by the web
225 Plugins are opened the first time they are required and never after,
226 so after changing a plugin you must restart the server before it is
227 guaranteed to take effect.
231 is used without arguments the plugin path is cleared.
232 .SS "Server Configuration"
234 .B alias \fIPATTERN\fR
235 Defines the pattern use construct virtual filenames from \fBtrackname_\fR
238 Most characters stand for themselves, the exception being \fB{\fR which is used
239 to insert a track name part in the form \fB{\fIname\fB}\fR or
242 The difference is that the first form just inserts the name part while the
243 second prefixes it with a \fB/\fR if it is nonempty.
245 The pattern should not attempt to include the collection root, which is
246 automatically included, but should include the proper extension.
248 The default is \fB{/artist}{/album}{/title}{ext}\fR.
251 Selects the backend used to play sound and to set the volume. The following
252 options are available:
256 Use the ALSA API. This is only available on Linux systems, on which it is the
260 Use Apple Core Audio. This only available on OS X systems, on which it is the
264 Use the OSS (/dev/dsp) API. Not available on all platforms.
267 Execute a command. This is the default if
269 is specified, or if no native is available.
272 Transmit audio over the network. This is the default if
273 \fBbroadcast\fR is specified. You can use
274 .BR disorder-playrtp (1)
275 to receive and play the resulting stream on Linux and OS X.
278 .B authorization_algorithm \fIALGORITHM\fR
279 Defines the algorithm used to authenticate clients. The valid options
280 are sha1 (the default), sha256, sha384 and sha512. See
281 .BR disorder_protocol (5)
284 .B broadcast \fIADDRESS\fR \fIPORT\fR
285 Transmit sound data to \fIADDRESS\fR using UDP port \fIPORT\fR. This implies
288 See also \fBmulticast_loop\fR and \fBmulticast_ttl\fR.
290 .B broadcast_from \fIADDRESS\fR \fIPORT\fR
291 Sets the (local) source address used by \fBbroadcast\fR.
293 .B channel \fICHANNEL\fR
294 The mixer channel that the volume control should use.
296 For \fBapi oss\fR the possible values are:
300 Output level for the audio device. This is probably what you want and is the
304 Output level for the PC speaker, if that is connected to the sound card.
307 Output level for alternative codec device.
310 Master output level. The OSS documentation recommends against using this, as
311 it affects all output devices.
314 You can also specify channels by number, if you know the right value.
316 For \fBapi alsa\fR, this is the name of the mixer control to use. The default
317 is \fBPCM\fR. Use \fBamixer scontrols\fR or similar to get a full list.
319 For \fBapi coreaudio\fR, volume setting is not currently supported.
321 .B collection \fIMODULE\fR \fIENCODING\fR \fIROOT\fR
323 .B collection \fIMODULE\fR \fIROOT\fR
325 .B collection \fIROOT\fR
326 Define a collection of tracks.
328 \fIMODULE\fR defines which plugin module should be used for this
329 collection. Use the supplied \fBfs\fR module for tracks that exist
330 as ordinary files in the filesystem. If no \fIMODULE\fR is specified
331 then \fBfs\fR is assumed.
333 \fIENCODING\fR defines the encoding of filenames in this collection. For
334 \fBfs\fR this would be the encoding you use for filenames. Examples might be
335 \fBiso-8859-1\fR or \fButf-8\fR. If no encoding is specified then the current
336 locale's character encoding is used.
338 NB that this default depends on the locale the server runs in, which is not
339 necessarily the same as that of ordinary users, depending how the system is
340 configured. It's best to explicitly specify it to be certain.
342 \fIROOT\fR is the root in the filesystem of the filenames and is
343 passed to the plugin module. It must be an absolute path and should not
346 .B default_rights \fIRIGHTS\fR
347 Defines the set of rights given to new users. The argument is a
348 comma-separated list of rights. For the possible values see
349 .B "Users And Access Control"
352 The default is to allow everything except \fBadmin\fR and \fBregister\fR
353 (modified in legacy configurations by the obsolete \fBrestrict\fR directive).
358 For \fBapi oss\fR this is the path to the device to use. If it is set to
359 \fBdefault\fR then \fI/dev/dsp\fR and \fI/dev/audio\fR will be tried.
361 For \fBapi alsa\fR this is the device name to use.
363 For \fBapi coreaudio\fR this is currently ignored.
365 The default is \fBdefault\fR, which is intended to map to whatever the system's
369 Specifies the number of seconds to leave between tracks. The default
372 .B history \fIINTEGER\fR
373 Specifies the number of recently played tracks to remember (including
374 failed tracks and scratches).
376 .B listen \fR[\fIHOST\fR] \fISERVICE\fR
377 Listen for connections on the address specified by \fIHOST\fR and port
378 specified by \fISERVICE\fR. If \fIHOST\fR is omitted then listens on all
381 Normally the server only listens on a UNIX domain socket.
384 Determines whether the server locks against concurrent operation. Default is
385 \fByes\fR. There is no good reason to set this to \fBno\fR and the option will
386 probably be removed in a future version.
388 .B mixer \fIDEVICE\fR
389 The mixer device name, if it needs to be specified separately from
392 For \fBapi oss\fR this should be the path to the mixer device and the default
395 For \fBapi alsa\fR, this is the index of the mixer control to use. The default
398 For \fBapi coreaudio\fR, volume setting is not currently supported.
400 .B multicast_loop yes\fR|\fBno
401 Determines whether multicast packets are loop backed to the sending host. The
402 default is \fByes\fR. This only applies if
403 \fBapi\fR is set to \fBnetwork\fR and \fBbroadcast\fR is actually a
406 .B multicast_ttl \fIHOPS\fR
407 Set the maximum number of hops to send multicast packets. This only applies if
408 \fBapi\fR is set to \fBnetwork\fR and \fBbroadcast\fR is actually a
409 multicast address. The default is 1.
411 .B namepart \fIPART\fR \fIREGEXP\fR \fISUBST\fR [\fICONTEXT\fR [\fIREFLAGS\fR]]
412 Determines how to extract trackname part \fIPART\fR from a
413 track name (with the collection root part removed).
414 Used in \fB@recent@\fR, \fB@playing@\fR and \fB@search@\fR.
416 Track names can be different in different contexts. For instance the sort
417 string might include an initial track number, but this would be stripped for
418 the display string. \fICONTEXT\fR should be a glob pattern matching the
419 contexts in which this directive will be used.
421 Valid contexts are \fBsort\fR and \fBdisplay\fR.
423 All the \fBnamepart\fR directives are considered in order. The
424 first directive for the right part, that matches the desired context,
425 and with a \fIREGEXP\fR that
426 matches the track is used, and the value chosen is constructed from
427 \fISUBST\fR according to the substitution rules below.
429 Note that searches use the raw track name and \fBtrackname_\fR preferences but
430 not (currently) the results of \fBnamepart\fR, so generating words via this option
431 that aren't in the original track name will lead to confusing results.
433 If you supply no \fBnamepart\fR directives at all then a default set will be
434 supplied automatically. But if you supply even one then you must supply all of
435 them. The defaults are equivalent to:
438 namepart title "/([0-9]+ *[-:] *)?([^/]+)\\.[a-zA-Z0-9]+$" $2 display
439 namepart title "/([^/]+)\\.[a-zA-Z0-9]+$" $1 sort
440 namepart album "/([^/]+)/[^/]+$" $1 *
441 namepart artist "/([^/]+)/[^/]+/[^/]+$" $1 *
442 namepart ext "(\\.[a-zA-Z0-9]+)$" $1 *
445 .B nice_rescan \fIPRIORITY\fR
446 Set the recan subprocess priority. The default is 10.
448 (Note that higher values mean the process gets less CPU time; UNIX priority
449 values are backwards.)
451 .B nice_server \fIPRIORITY\fR
452 Set the server priority. This is applied to the server at startup time (and
453 not when you reload configuration). The server does not use much CPU itself
454 but this value is inherited by programs it executes. If you have limited CPU
455 then it might help to set this to a small negative value. The default is 0.
457 .B nice_speaker \fIPRIORITY\fR
458 Set the speaker process priority. This is applied to the speaker process at
459 startup time (and not when you reload the configuration). The speaker process
460 is not massively CPU intensive by today's standards but depends on reasonably
461 timely scheduling. If you have limited CPU then it might help to set this to a
462 small negative value. The default is 0.
465 The maximum days that a track can survive in the database of newly added
466 tracks. The default is 31.
468 .B player \fIPATTERN\fR \fIMODULE\fR [\fIOPTIONS.. [\fB--\fR]] \fIARGS\fR...
469 Specifies the player for files matching the glob \fIPATTERN\fR. \fIMODULE\fR
470 specifies which plugin module to use.
472 The following options are supported:
475 .B --wait-for-device\fR[\fB=\fIDEVICE\fR]
476 Waits (for up to a couple of seconds) for the default, or specified, libao
477 device to become openable.
480 Defines the end of the list of options. Needed if the first argument to the
481 plugin starts with a "-".
484 The following are the standard modules:
487 .B exec \fICOMMAND\fR \fIARGS\fR...
488 The command is executed via \fBexecvp\fR(3), not via the shell.
489 The \fBPATH\fR environment variable is searched for the executable if it is not
491 The command is expected to know how to open its own sound device.
493 .B execraw \fICOMMAND\fR \fIARGS\fR...
494 Identical to the \fBexec\fR except that the player is expected to use the
495 DisOrder raw player protocol.
496 .BR disorder-decode (8)
497 can decode several common audio file formats to this format. If your favourite
498 format is not supported, but you have a player which uses libao, there is also
499 a libao driver which supports this format; see below for more information about
502 .B shell \fR[\fISHELL\fR] \fICOMMAND\fR
503 The command is executed using the shell. If \fISHELL\fR is specified then that
504 is used, otherwise \fBsh\fR will be used. In either case the \fBPATH\fR
505 environment variable is searched for the shell executable if it is not an
506 absolute path. The track name is stored in the environment variable
509 Be careful of the interaction between the configuration file quoting rules and
510 the shell quoting rules.
513 If multiple player commands match a track then the first match is used.
515 For the server to be able to calculate track lengths, there should be a
517 command corresponding to each
523 is used without arguments, the list of players is cleared.
525 .B prefsync \fISECONDS\fR
526 The interval at which the preferences log file will be synchronised. Defaults
527 to 3600, i.e. one hour.
529 .B queue_pad \fICOUNT\fR
530 The target size of the queue. If random play is enabled then randomly picked
531 tracks will be added until the queue is at least this big. The default is 10.
533 .B sample_format \fIBITS\fB/\fIRATE\fB/\fICHANNELS
534 Describes the sample format expected by the \fBspeaker_command\fR (below). The
535 components of the format specification are as follows:
539 The number of bits per sample. Optionally, may be suffixed by \fBb\fR or
540 \fBl\fR for big-endian and little-endian words. If neither is used the native
541 byte order is assumed.
544 The number of samples per second.
547 The number of channels.
554 backend the sample format is forced to
558 backend it is forced to
560 in both cases regardless of what is specified in the configuration file.
564 Defines the signal to be sent to track player process groups when tracks are
565 scratched. The default is \fBSIGKILL\fR.
567 Signals are specified by their full C name, i.e. \fBSIGINT\fR and not \fBINT\fR
568 or \fBInterrupted\fR or whatever.
570 .B sox_generation \fB0\fR|\fB1
571 Determines whether calls to \fBsox\fR(1) should use \fB-b\fR, \fB-x\fR, etc (if
572 the generation is 0) or \fB-\fIbits\fR, \fB-L\fR etc (if it is 1). See the
573 documentation for your installed copy of \fBsox\fR to determine which you need.
576 .B speaker_backend \fINAME
577 This is an alias for \fBapi\fR; see above.
579 .B speaker_command \fICOMMAND
580 Causes the speaker subprocess to pipe audio data into shell command
581 \fICOMMAND\fR, rather than writing to a local sound card. The sample format is
586 Note that if the sample format is wrong then
588 is invoked to translate it. If
590 is not installed then this will not work.
592 .B scratch \fIPATH\fR
593 Specifies a scratch. When a track is scratched, a scratch track is
595 Scratches are played using the same logic as other tracks.
597 At least for the time being, path names of scratches must be encoded using
598 UTF-8 (which means that ASCII will do).
600 If \fBscratch\fR is used without arguments then the list of scratches is
603 .B stopword \fIWORD\fR ...
604 Specifies one or more stopwords that should not take part in searches
607 If \fBstopword\fR is used without arguments then the list of stopwords is
610 There is a default set of stopwords built in, but this option can be used to
611 augment or replace that list.
613 .B tracklength \fIPATTERN\fR \fIMODULE\fR
614 Specifies the module used to calculate the length of files matching
615 \fIPATTERN\fR. \fIMODULE\fR specifies which plugin module to use.
617 If \fBtracklength\fR is used without arguments then the list of modules is
621 Specifies the user to run as. Only makes sense if invoked as root (or
623 .SS "Client Configuration"
625 .B connect \fIHOST SERVICE\fR
626 Connect to the address specified by \fIHOST\fR and port specified by
628 .SS "Web Interface Configuration"
630 .B mail_sender \fIADDRESS\fR
631 The email address that appears in the From: field of any mail messages sent by
632 the web interface. This must be set if you have online registration enabled.
634 .B refresh \fISECONDS\fR
635 Specifies the maximum refresh period in seconds. Default 15.
637 .B short_display \fICHARACTERS\fR
638 Defines the maximum number of characters to include in a \fBshort\fR name
641 .B smtp_server \fIHOSTNAME\fR
642 The hostname (or address) of the SMTP server to use for sending mail. The
643 default is 127.0.0.1.
645 .B templates \fIPATH\fR ...
646 Specifies the directory containing templates used by the web
647 interface. If a template appears in more than one template directory
648 then the one in the earliest directory specified is chosen.
650 See below for further details.
652 If \fBtemplates\fR is used without arguments then the template path is cleared.
654 .B transform \fITYPE\fR \fIREGEXP\fR \fISUBST\fR [\fICONTEXT\fR [\fIREFLAGS\fR]]
655 Determines how names are sorted and displayed in track choice displays.
657 \fITYPE\fR is the type of transformation; usually \fBtrack\fR or
658 \fBdir\fR but you can define your own.
660 \fICONTEXT\fR is a glob pattern matching the context. Standard contexts are
661 \fBsort\fR (which determines how directory names are sorted) and \fBdisplay\fR
662 (which determines how they are displayed). Again, you can define your
665 All the \fBtransform\fR directives are considered in order. If
666 the \fITYPE\fR, \fIREGEXP\fR and the \fICONTEXT\fR match
667 then a new track name is constructed from
668 \fISUBST\fR according to the substitution rules below. If several
669 match then each is executed in order.
671 If you supply no \fBtransform\fR directives at all then a default set will be
672 supplied automatically. But if you supply even one then you must supply all of
673 them. The defaults are:
676 transform track "^.*/([0-9]+ *[-:] *)?([^/]+)\\.[a-zA-Z0-9]+$" $2 display
677 transform track "^.*/([^/]+)\\.[a-zA-Z0-9]+$" $1 sort
678 transform dir "^.*/([^/]+)$" $1 *
679 transform dir "^(the) ([^/]*)" "$2 $1" sort i
680 transform dir "[[:punct:]]" "" sort g
684 Specifies the URL of the web interface. This URL will be used in
685 generated web pages. The default is inferred at runtime, so this option no
686 longer needs to be specified.
688 This must be the full URL, e.g. \fBhttp://myhost/cgi-bin/jukebox\fR and not
689 \fB/cgi-bin/jukebox\fR.
690 .SS "Authentication Configuration"
691 These options would normally be used in \fI~\fRUSER\fI/.disorder/passwd\fR or
692 \fIpkgconfdir/config.\fRUSER.
694 .B password \fIPASSWORD\fR
697 .B username \fIUSERNAME\fR
698 Specify username. The default is taken from the environment variable
700 .SH "GLOBAL PREFERENCES"
701 These are the values set with \fBset-global\fR.
704 If this is set an nonempty then randomly played tracks will always have at
705 least one of the listed tags.
708 If this is set an nonempty then randomly played tracks will never have any of
712 If unset or \fByes\fR then play is enabled. Otherwise it is disabled. Use
713 \fBdisable\fR rather than setting it directly.
716 If unset or \fByes\fR then random play is enabled. Otherwise it is disabled.
717 Use \fBdisable\fR rather than setting it directly.
719 Global preferences starting '_' are read-only (in the sense that you cannot
720 modify them; the server may modify them as part of its normal operation). They
724 The database version string. This is used by DisOrder to detect when it must
725 modify the database after an upgrade.
727 .SS "Raw Protocol Players"
728 Raw protocol players are expected to use the \fBdisorder\fR libao driver.
729 Programs that use libao generally have command line options to select the
730 driver and pass options to it.
732 The known driver options are:
735 The file descriptor to write to. If this is not specified then the driver
736 looks like the environment variable \fBDISORDER_RAW_FD\fR. If that is not set
737 then the default is 1 (i.e. standard output).
740 If this is set to a nonzero value then the driver will call \fB_exit\fR(2) if a
741 write to the output file descriptor fails. This is a workaround for buggy
742 players such as \fBogg123\fR that ignore write errors.
744 When \fBdisorder.cgi\fR wants to generate a page for an action it searches the
745 directories specified with \fBtemplates\fR for a matching file. It is
746 suggested that you leave the distributed templates unchanged and put
747 any customisations in an earlier entry in the template path.
749 The supplied templates are:
752 Display information about DisOrder.
755 Navigates through the track database to choose a track to play. The
756 \fBdir\fR argument gives the directory to look in; if it is missing
757 then the root directory is used.
760 Provides a front end to \fBchoose.html\fR which allows subsets of the top level
761 directories to be selected by initial letter.
764 Lists newly added tracks.
767 The "front page", which usually shows the currently playing tracks and
769 Gets an HTTP \fBRefresh\fR header.
771 If the \fBmgmt\fR CGI argument is set to \fBtrue\fR then we include extra
772 buttons for moving tracks up and down in the queue. There is some logic in
773 \fBdisorder.cgi\fR to ensure that \fBmgmt=true\fR is preserved across refreshes
774 and redirects back into itself, but URLs embedded in web pages must include it
778 Views preferences. If the \fBfile\fR, \fBname\fR and \fBvalue\fR arguments are
779 all set then that preference is modified; if \fBfile\fR and \fBname\fR are set
780 but not \fBvalue\fR then the preference is deleted.
783 Lists recently played tracks.
786 Presents search results.
789 Primitive volume control.
791 Additionally, other standard files are included by these:
794 Included at the end of the main content \fB<DIV>\fR element.
797 Included at the start of the \fB<BODY>\fR element.
800 Included at the end of the \fB<BODY>\fR element.
803 Included in the \fB<HEAD>\fR element.
806 Contains the default DisOrder stylesheet. You can override this by editing the
807 CSS or by replacing it all with a \fB<LINK>\fR to an external stylesheet.
809 Templates are ASCII files containing HTML documents, with an expansion
810 syntax to enable data supplied by the implementation to be inserted.
812 If you want to use characters outside the ASCII range, use either the
813 appropriate HTML entity, e.g. \fBé\fR, or an SGML numeric
814 character reference, e.g. \fBý\fR. Use \fB@\fR to insert a
815 literal \fB@\fR without falling foul of the expansion syntax.
816 .SS "Expansion Syntax"
817 Expansions are surrounded by at ("@") symbols take the form of a keyword
818 followed by zero or more arguments. Arguments may either be quoted by curly
819 brackets ("{" and "}") or separated by colons (":"). Both kinds may be mixed
820 in a single expansion, though doing so seems likely to cause confusion.
821 The descriptions below contain suggested forms for each
824 Leading and trailing whitespace in unquoted arguments is ignored, as is
825 whitespace (including newlines) following a close bracket ("}").
827 Arguments are recursively expanded before being interpreted, except for
828 \fITEMPLATE\fR arguments. These are expanded (possibly more than once) to
829 produce the final expansion.
830 (More than once means the same argument being expanded more than once
831 for different tracks or whatever, not the result of the first
832 expansion itself being re-expanded.)
834 Strings constructed by expansions (i.e. not literally copied from the template
835 text) are SGML-quoted: any character which does not stand for itself in #PCDATA
836 or a quoted attribute value is replaced by the appropriate numeric character
839 The exception to this is that such strings are \fInot\fR quoted when they are
840 generated in the expansion of a parameter.
842 In the descriptions below, the current track means the one set by
843 \fB@playing@\fR, \fB@recent@\fR or \fB@queue@\fR, not the one that is playing.
844 If none of these expansions are in force then there is no current track.
845 \fIBOOL\fR should always be either \fBtrue\fR or \fBfalse\fR.
847 The following expansion keywords are defined:
849 .B @#{\fICOMMENT\fB}@
853 The current action. This reports
855 if the action is really
861 .B @and{\fIBOOL\fB}{\fIBOOL\fB}\fR...\fB@
862 If there are no arguments, or all the arguments are \fBtrue\fB, then expands to
863 \fBtrue\fR, otherwise to \fBfalse\fR.
866 Expands to the value of CGI argument \fINAME\fR.
869 The basename of the current directory component, in \fB@navigate@\fR.
871 .B @basename{\fIPATH\fB}@
872 The base name part of \fIPATH\fR.
874 .B @choose{\fIWHAT\fB}{\fITEMPLATE\fB}@
875 Expands \fITEMPLATE\fR repeatedly for each file or directory under
876 \fB@arg:directory@\fR.
877 \fIWHAT\fR should be either \fBfile\fR or \fBdirectory\fR.
878 Use \fB@file@\fR to get the display name or filename of the file or
880 Usually used in \fBchoose.html\fR.
883 The directory of the current directory component, in \fB@navigate@\fR.
885 .B @dirname{\fIPATH\fB}@
886 The directory part of \fIPATH\fR.
889 Expands to \fBtrue\fR if play is currently enabled, otherwise to \fBfalse\fR.
891 .B @eq{\fIA\fB}{\fIB\fB}
892 Expands to \fBtrue\fR if \fIA\fR and \fIB\fR are identical, otherwise to
896 Expands to the filename of the current file or directory, inside the template
897 argument to \fBchoose\fR.
899 .B @files{\fITEMPLATE\fB}
900 Expands \fITEMPLATE\fR once for each file indicated by the \fBdirectory\fR CGI
901 arg if it is present, or otherwise for the list of files counted by \fBfiles\fR
902 with names \fB0_file\fR, \fB1_file\fR etc.
905 The full path of the current directory component, in \fB@navigate@\fR.
908 The ID of the current track.
910 .B @if{\fIBOOL\fB}{\fITRUEPART\fB}{\fIFALSEPART\fB}@
911 If \fIBOOL\fR expands to \fBtrue\fR then expands to \fITRUEPART\fR, otherwise
912 to \fIFALSEPART\fR (which may be omitted).
914 .B @include:\fIPATH\fR@
915 Include the named file as if it were a template file. If \fIPATH\fR
916 starts with a \fB/\fR then it is used as-is; otherwise, ".html" is
917 appended and the template path is searched.
920 Expands to the index of the current file in \fB@queue@\fR, \fB@recent@\fR or
924 Expands to \fBtrue\fR if there are any directories in \fB@arg:directory@\fR,
925 otherwise to \fBfalse\fR.
928 Expands to \fBtrue\fR if there are any files in \fB@arg:directory@\fR,
929 otherwise to \fBfalse\fR.
932 Expands to \fBtrue\fR if this is the first repetition of a \fITEMPLATE\fR
933 argument in a loop (\fB@queue\fR or similar), otherwise to \fBfalse\fR.
936 Expands to \fBtrue\fR if this is the last repetition of a \fITEMPLATE\fR in a
937 loop, otherwise to \fBfalse\fR.
940 Expands to \fBtrue\fR if the newly added tracks list has any tracks in it,
941 otherwise to \fBfalse\fR.
944 Expands to \fBtrue\fR if a track is playing, otherwise to \fBfalse\fR.
947 Expands to \fBtrue\fR if there are any tracks in the queue, otherwise to
951 Expands to \fBtrue\fR if the recently played list has any tracks in it,
952 otherwise to \fBfalse\fR.
954 .B @label:\fINAME\fR\fB@
955 Expands to the value of label \fINAME\fR. See the shipped \fIoptions.labels\fR
956 file for full documentation of the labels used by the standard templates.
959 Expands to the length of the current track.
962 Expands to \fBtrue\fR if the current track is movable, otherwise to
965 .B @navigate{\fIDIRECTORY\fB}{\fITEMPLATE\fB}
966 Expands \fITEMPLATE\fR for each component of \fIDIRECTORY\fR in turn.
967 Use \fB@dirname\fR and \fB@basename@\fR to get the components of the path to
969 Usually used in \fBchoose.html\fR.
971 .B @ne{\fIA\fB}{\fIB\fB}
972 Expands to \fBtrue\fR if \fIA\fR and \fIB\fR differ, otherwise to \fBfalse\fR.
974 .B @new{\fITEMPLATE\fB}
975 Expands \fITEMPLATE\fR for each track in the newly added tracks list, starting
976 with the most recent. Used in \fBnew.html\fR.
979 Expands to the number of files from \fB@files\fR (above).
982 Expands to a string including the time and process ID, intended to be
983 unique across invocations.
986 Expands to \fBfalse\fR if \fIBOOL\fR is \fBtrue\fR, otherwise to
989 .B @or{\fIBOOL\fB}{\fIBOOL\fB}\fR...\fB@
990 If at least one argument is \fBtrue\fB, then expands to \fBtrue\fR, otherwise
994 Expands to \fBeven\fR or \fBodd\fR depending on whether the current track is at
995 an even or odd position in \fB@queue@\fR, \fB@recent@\fR or \fB@files@\fR.
997 .B @part{\fICONTEXT\fB}{\fIPART\fB}@
998 Expands to track name part \fIPART\fR using context \fICONTEXT\fR for the
999 current track. The context may be omitted and defaults
1002 The special context \fBshort\fR is equivalent to \fBdisplay\fR but limited to
1003 the \fBshort_display\fR limit.
1005 .B @part{\fICONTEXT\fB}{\fIPART\fB}{\fITRACK\fB}@
1006 Expands to track name part \fIPART\fR using context \fICONTEXT\fR for
1007 \fITRACK\fR. In this usage the context may not be omitted.
1009 The special context \fBshort\fR is equivalent to \fBdisplay\fR but limited to
1010 the \fBshort_display\fR limit.
1013 Expands to \fBtrue\fR if the current track is paused, else \fBfalse\fR.
1015 .B @playing{\fITEMPLATE\fB}@
1016 Expands \fITEMPLATE\fR using the playing track as the current track.
1018 .B @pref{\fITRACK\fB}{\fIKEY\fB}@
1019 Expand to the track preference, or the empty string if it is not set.
1022 Expands to the name of the current preference, in the template
1023 argument of \fB@prefs@\fR.
1025 .B @prefs{\fIFILE\fB}{\fITEMPLATE\fB}@
1026 Expands \fITEMPLATE\fR repeatedly, for each preference of track
1028 Use \fB@prefname@\fR and \fB@prefvalue@\fR to get the name and value.
1031 Expands to the value of the current preference, in the template
1032 argument of \fB@prefs@\fR.
1034 .B @queue{\fITEMPLATE\fB}@
1035 Expands \fITEMPLATE\fR repeatedly using the each track on the queue in turn as
1036 the current track. The track at the head of the queue comes first.
1039 Expands to \fBtrue\fR if random play is currently enabled, otherwise to
1042 .B @recent{\fITEMPLATE\fB}@
1043 Expands \fITEMPLATE\fR repeatedly using the each recently played track in turn
1044 as the current track. The most recently played track comes first.
1047 Expands to \fBtrue\fR if the current track is removable, otherwise to
1050 .B @resolve{\fITRACK\fB}@
1051 Resolve aliases for \fITRACK\fR and expands to the result.
1053 .B @right{\fIRIGHT\fB}@
1054 Exapnds to \fBtrue\fR if the user has right \fIRIGHT\fR, otherwise to
1057 .B @right{\fIRIGHT\fB}{\fITRUEPART\fB}{\fIFALSEPART\fB}@
1058 Expands to \fITRUEPART\fR if the user right \fIRIGHT\fR, otherwise to
1059 \fIFALSEPART\fR (which may be omitted).
1062 Expands to \fBtrue\fR if the currently playing track is scratchable, otherwise
1065 .B @search{\fIPART\fB}\fR[\fB{\fICONTEXT\fB}\fR]\fB{\fITEMPLATE\fB}@
1066 Expands \fITEMPLATE\fR once for each group of search results that have
1067 a common value of track part \fIPART\fR.
1068 The groups are sorted by the value of the part.
1073 within the template will apply to one of the tracks in the group.
1075 If \fICONTEXT\fR is specified it should be either \fBsort\fR or \fBdisplay\fR,
1076 and determines the context for \fIPART\fR. The default is \fBsort\fR. Usually
1077 you want \fBdisplay\fR for everything except the title and \fBsort\fR for the
1078 title. If you use \fBsort\fR for artist and album then you are likely to get
1082 Expands to the server's version string.
1084 .B @shell{\fICOMMAND\fB}@
1085 Expands to the output of \fICOMMAND\fR executed via the shell. \fBsh\fR is
1086 searched for using \fBPATH\fR. If the command fails then this is logged but
1090 In \fB@queue@\fR and \fB@recent@\fR, expands to the state of the current
1091 track. Otherwise the empty string. Known states are:
1095 The player terminated with nonzero status, but not because the track was
1099 A scratch, in the queue.
1102 No player could be found.
1105 Played successfully.
1108 A randomly chosen track, in the queue.
1111 This track was scratched.
1114 An explicitly queued track, in the queue.
1117 Some additional states only apply to playing tracks, so will never be seen in
1118 the queue or recently-played list:
1122 The track has been paused.
1125 Interrupted because the server is shutting down.
1128 This track is currently playing.
1132 Expands to the server statistics.
1135 Expands to the URL of the current page. Typically used in
1137 arguments. If there is a
1139 argument then it is changed to a fresh value.
1144 .B @trackstate{\fIPATH\fB}@
1145 Expands to the current track state: \fBplaying\fR if the track is actually
1146 playing now, \fBqueued\fR if it is queued or the empty string otherwise.
1148 .B @transform{\fIPATH\fB}{\fITYPE\fB}{\fICONTEXT\fB}@
1149 Transform a path according to \fBtransform\fR (see above).
1150 \fIPATH\fR should be a raw filename (of a track or directory).
1151 \fITYPE\fR should be the transform type (e.g. \fItrack\fR or \fIdir\fR).
1152 \fICONTEXT\fR should be the context, and can be omitted (the default
1156 Expands to the canonical URL as defined in \fIpkgconfdir/config\fR.
1158 .B @urlquote{\fISTRING\fB}@
1159 URL-quote \fISTRING\fR.
1162 The current username. This will be "guest" if nobody is logged in.
1165 Expands to \fBdisorder.cgi\fR's version string.
1167 .B @volume:\fISPEAKER\fB@
1168 The volume on the left or right speaker. \fISPEAKER\fR must be \fBleft\fR or
1172 When the current track was played (or when it is expected to be played, if it
1173 has not been played yet)
1176 Who submitted the current track.
1178 This is a file called \fIoptions\fR, searched for in the same manner
1179 as templates. It includes numerous options for the control of the web
1180 interface. The general syntax is the same as the main configuration
1181 file, except that it should be encoded using UTF-8 (though this might
1182 change to the current locale's character encoding; stick to ASCII to
1185 The shipped \fIoptions\fR file includes four standard options files.
1189 The default labels file. You wouldn't normally edit this directly - instead
1190 supply your own commands in \fIoptions.user\fR. Have a look at the shipped
1191 version of the file for documentation of labels used by the standard templates.
1194 A user options file. Here you should put any overrides for the default
1195 labels and any extra labels required by your modified templates.
1197 Valid directives are:
1199 .B columns \fINAME\fR \fIHEADING\fR...
1200 Defines the columns used in \fB@playing@\fR and \fB@recent@\fB. \fINAME\fR
1201 must be either \fBplaying\fR, \fBrecent\fR or \fBsearch\fR.
1202 \fIHEADING\fR... is a list of
1203 heading names. If a column is defined more than once then the last definitions
1206 The heading names \fBbutton\fR, \fBlength\fR, \fBwhen\fR and \fBwho\fR
1209 .B include \fIPATH\fR
1210 Includes another file. If \fIPATH\fR starts with a \fB/\fR then it is
1211 taken as is, otherwise it is searched for in the template path.
1213 .B label \fINAME\fR \fIVALUE\fR
1214 Define a label. If a label is defined more than once then the last definition
1217 Some labels are defined inside \fBdisorder.cgi\fR and others by the
1218 default templates. You can define your own labels and use them inside
1221 When an undefined label is expanded, if it has a dot in its name then
1222 the part after the final dot is used as its value. Otherwise the
1223 whole name is used as the value.
1225 Labels are no longer documented here, see the shipped \fIoptions.labels\fR file
1227 .SH "REGEXP SUBSTITUTION RULES"
1228 Regexps are PCRE regexps, as defined in \fBpcrepattern\fR(3). The
1229 only option used is \fBPCRE_UTF8\fR. Remember that the configuration
1230 file syntax means you have to escape backslashes and quotes inside
1233 In a \fISUBST\fR string the following sequences are interpreted
1237 These expand to the first to ninth bracketed subexpression.
1240 This expands to the matched part of the subject string.
1243 This expands to a single \fB$\fR symbol.
1245 All other pairs starting with \fB$\fR are undefined (and might be used
1246 for something else in the future, so don't rely on the current
1249 If \fBi\fR is present in \fIREFLAGS\fR then the match is case-independent. If
1250 \fBg\fR is present then all matches are replaced, otherwise only the first
1253 What the web interface actually does is terminated by the \fBaction\fR CGI
1254 argument. The values listed below are supported.
1256 Except as specified, all actions redirect back to the \fBplaying.html\fR
1257 template unless the \fBback\fR argument is present, in which case the URL it
1258 gives is used instead.
1260 Redirection to \fBplaying.html\fR preserves \fBmgmt=true\fR if it is present.
1263 Move track \fBid\fR by offset \fBdelta\fR.
1266 Play track \fBfile\fR, or if that is missing then play all the tracks in
1270 Don't change any state, but instead compute a suitable refresh time and include
1271 that in an HTTP header. Expands the \fBplaying.html\fR template rather than
1274 This is the default if \fBaction\fR is missing.
1277 Disables random play.
1280 Enables random play.
1283 Disables play completely.
1289 Pauses the current track.
1292 Remove track \fBid\fR.
1295 Resumes play after a pause.
1298 Scratch the playing track. If \fBid\fR is present it must match the playing
1302 Change the volume by \fBdelta\fR, or if that is missing then set it to the
1303 values of \fBleft\fR and \fBright\fR. Expands to the \fBvolume.html\fR template
1304 rather than redirecting.
1307 Adjust preferences from the \fBprefs.html\fR template (which it then expands
1308 rather than redirecting).
1312 is set then the cooked interface is assumed. The value of
1314 is used to determine which trackname preferences are set. By default the
1316 context is adjusted but this can be overridden with the
1320 argument is checked; if it is set then random play is enabled for that track,
1321 otherwise it is disabled.
1327 arguments are set then they are used to set a single preference.
1329 Otherwise if just the
1331 argument is set then that preference is deleted.
1333 It is recommended that links to the \fBprefs\fR action use \fB@resolve@\fR to
1334 enure that the real track name is always used. Otherwise if the preferences
1335 page is used to adjust a trackname_ preference, the alias may change, leading
1336 to the URL going stale.
1339 This action is generated automatically when an error occurs connecting to the
1340 server. The \fBerror\fR label is set to an indication of what the error is.
1341 .SH "TRACK NAME PARTS"
1342 The traditional track name parts are \fBartist\fR, \fBalbum\fR and \fBtitle\fR,
1343 with the obvious intended meaning. These are controlled by configuration and
1344 by \fBtrackname_\fR preferences.
1346 In addition there are two built-in parts, \fBpath\fR which is the whole path
1347 name and \fBext\fR which is the filename extension, including the initial dot
1348 (or the empty string if there is not extension).
1350 \fBdisorder\fR(1), \fBsox\fR(1), \fBdisorderd\fR(8), \fBdisorder-dump\fR(8),
1351 \fBpcrepattern\fR(3)
1352 .\" Local Variables:
~mdw / disorder / blob