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
6 .\" the Free Software Foundation; either version 2 of the License, or
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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.
14 .\" You should have received a copy of the GNU General Public License
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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 It's possible to restrict a small number of operations to a specific subset of
56 users. However, it is assumed that every user is supposed to be able to do
57 most operations - since the users are all sharing the same audio environment
58 they are expected to cooperate with each other.
60 Access control is entirely used-based. If you configure DisOrder to listen for
61 TCP/IP connections then it will accept a connection from anywhere provided the
62 right password is available. Passwords are never transmitted over TCP/IP
63 connections in clear, but everything else is. The expected model is that
64 host-based access control is imposed at the network layer.
66 The web interface is controlled by a collection of template files, one for each
67 kind of page, and a collection of option files. These are split up and
68 separate from the main configuration file to make it more convenient to
69 override specific bits.
71 The web interface connects to the DisOrder server like any other user, though
72 it is given a special privilege to "become" any other user. (Thus, any process
73 with the same UID as the web interface is very powerful as far as DisOrder
76 Access control to the web interface is (currently) separate from DisOrder's own
77 access control (HTTP authentication is required) but uses the same user
79 .SH "CONFIGURATION FILE"
81 Lines are split into fields separated by whitespace (space, tab, line
82 feed, carriage return, form feed). Comments are started by the number
85 Fields may be unquoted (in which case they may not contain spaces and
86 may not start with a quotation mark or apostrophe) or quoted by either
87 quotation marks or apostrophes. Inside quoted fields every character
88 stands for itself, except that a backslash can only appear as part of
89 one of the following escape sequences:
104 No other escape sequences are allowed.
106 Within any line the first field is a configuration command and any
107 further fields are parameters. Lines with no fields are ignored.
109 After editing the config file use \fBdisorder reconfigure\fR to make
110 it re-read it. If there is anything wrong with it the daemon will
111 record a log message and ignore the new config file. (You should fix
112 it before next terminating and restarting the daemon, as it cannot
113 start up without a valid config file.)
114 .SS "Global Configuration"
116 .B home \fIDIRECTORY\fR
117 The home directory for state files. Defaults to
121 Adds a directory to the plugin path. (This is also used by the web
124 Plugins are opened the first time they are required and never after,
125 so after changing a plugin you must restart the server before it is
126 guaranteed to take effect.
127 .SS "Server Configuration"
129 .B alias \fIPATTERN\fR
130 Defines the pattern use construct virtual filenames from \fBtrackname_\fR
133 Most characters stand for themselves, the exception being \fB{\fR which is used
134 to insert a track name part in the form \fB{\fIname\fB}\fR or
137 The difference is that the first form just inserts the name part while the
138 second prefixes it with a \fB/\fR if it is nonempty.
140 The pattern should not attempt to include the collection root, which is
141 automatically included, but should include the proper extension.
143 The default is \fB{/artist}{/album}{/title}{ext}\fR.
145 .B broadcast \fIADDRESS\fR \fIPORT\fR
146 Transmit sound data to \fIADDRESS\fR using UDP port \fIPORT\fR. This implies
147 \fBspeaker_backend network\fR.
149 .B broadcast_from \fIADDRESS\fR \fIPORT\fR
150 Sets the (local) source address used by \fBbroadcast\fR.
152 .B channel \fICHANNEL\fR
153 The mixer channel that the volume control should use. Valid names depend on
154 your operating system and hardware, but some standard ones that might be useful
159 Output level for the audio device. This is probably what you want.
162 Output level for the PC speaker, if that is connected to the sound card.
165 Output level for alternative codec device.
168 Master output level. The OSS documentation recommends against using this, as
169 it affects all output devices.
172 You can also specify channels by number, if you know the right value.
174 .B collection \fIMODULE\fR \fIENCODING\fR \fIROOT\fR
175 Define a collection of tracks.
177 \fIMODULE\fR defines which plugin module should be used for this
178 collection. Use the supplied \fBfs\fR module for tracks that exists
179 as ordinary files in the filesystem.
181 \fIENCODING\fR defines the encoding of filenames in this collection.
182 For \fBfs\fR this would be the encoding you use for filenames.
183 Examples might be \fBiso-8859-1\fR or \fButf-8\fR.
185 \fIROOT\fR is the root in the filesystem of the filenames and is
186 passed to the plugin module.
189 ALSA device to play raw-format audio. Default is \fBdefault\fR, i.e. to use
190 the whatever the ALSA configured default is.
193 Specifies the number of seconds to leave between tracks. The default
196 .B history \fIINTEGER\fR
197 Specifies the number of recently played tracks to remember (including
198 failed tracks and scratches).
200 .B listen \fR[\fIHOST\fR] \fISERVICE\fR
201 Listen for connections on the address specified by \fIHOST\fR and port
202 specified by \fISERVICE\fR. If \fIHOST\fR is omitted then listens on all
205 Normally the server only listens on a UNIX domain socket.
208 Determines whether the server locks against concurrent operation. Default is
212 The path to the mixer device, if you want access to the volume control,
213 e.g. \fB/dev/mixer\fR.
215 .B multicast_ttl \fIHOPS\fR
216 Set the maximum number of hops to send multicast packets. This only applies is
217 \fBspeaker_backend\fR is set to \fBnetwork\fR and \fBbroadcast\fR is actually a
220 .B namepart \fIPART\fR \fIREGEXP\fR \fISUBST\fR [\fICONTEXT\fR [\fIREFLAGS\fR]]
221 Determines how to extract trackname part \fIPART\fR from a
222 track name (with the collection root part removed).
223 Used in \fB@recent@\fR, \fB@playing@\fR and \fB@search@\fR.
225 Track names can be different in different contexts. For instance the sort
226 string might include an initial track number, but this would be stripped for
227 the display string. \fICONTEXT\fR should be a glob pattern matching the
228 contexts in which this directive will be used.
230 Valid contexts are \fBsort\fR and \fBdisplay\fR.
232 All the \fBnamepart\fR directives are considered in order. The
233 first directive for the right part, that matches the desired context,
234 and with a \fIREGEXP\fR that
235 matches the track is used, and the value chosen is constructed from
236 \fISUBST\fR according to the substitution rules below.
238 Note that searches use the raw track name and \fBtrackname_\fR preferences but
239 not (currently) the results of \fBnamepart\fR, so generating words via this option
240 that aren't in the original track name will lead to confusing results.
242 If you supply no \fBnamepart\fR directives at all then a default set will be
243 supplied automatically. But if you supply even one then you must supply all of
244 them. See the example config file for the defaults.
246 .B nice_rescan \fIPRIORITY\fR
247 Set the recan subprocess priority. The default is 10.
249 (Note that higher values mean the process gets less CPU time; UNIX priority
250 values are the backwards.)
252 .B nice_server \fIPRIORITY\fR
253 Set the server priority. This is applied to the server at startup time (and
254 not when you reload configuration). The server does not use much CPU itself
255 but this value is inherited by programs it executes. If you have limited CPU
256 then it might help to set this to a small negative value. The default is 0.
258 .B nice_speaker \fIPRIORITY\fR
259 Set the speaker process priority. This is applied to the speaker process at
260 startup time (and not when you reload the configuration). The speaker process
261 is not massively CPU intensive by today's standards but depends on reasonably
262 timely scheduling. If you have limited CPU then it might help to set this to a
263 small negative value. The default is 0.
265 .B player \fIPATTERN\fR \fIMODULE\fR [\fIOPTIONS.. [\fB--\fR]] \fIARGS\fR...
266 Specifies the player for files matching the glob \fIPATTERN\fR. \fIMODULE\fR
267 specifies which plugin module to use.
269 The following options are supported:
272 .B --wait-for-device\fR[\fB=\fIDEVICE\fR]
273 Waits (for up to a couple of seconds) for the default, or specified, libao
274 device to become openable.
277 Defines the end of the list of options. Needed if the first argument to the
278 plugin starts with a "-".
281 The following are the standard modules:
284 .B exec \fICOMMAND\fR \fIARGS\fR...
285 The command is executed via \fBexecvp\fR(3), not via the shell.
286 The \fBPATH\fR environment variable is searched for the executable if it is not
288 The command is expected to know how to open its own sound device.
290 .B execraw \fICOMMAND\fR \fIARGS\fR...
291 Identical to the \fBexec\fR except that the player is expected to use the
292 DisOrder raw player protocol.
293 .BR disorder-decode (8)
294 can decode several common audio file formats to this format. If your favourite
295 format is not supported, but you have a player which uses libao, there is also
296 a libao driver which supports this format; see below for more information about
299 .B shell \fR[\fISHELL\fR] \fICOMMAND\fR
300 The command is executed using the shell. If \fISHELL\fR is specified then that
301 is used, otherwise \fBsh\fR will be used. In either case the \fBPATH\fR
302 environment variable is searched for the shell executable if it is not an
303 absolute path. The track name is stored in the environment variable
306 Be careful of the interaction between the configuration file quoting rules and
307 the shell quoting rules.
310 If multiple player commands match a track then the first match is used.
312 .B prefsync \fISECONDS\fR
313 The interval at which the preferences log file will be synchronised. Defaults
314 to 3600, i.e. one hour.
316 .B queue_pad \fICOUNT\fR
317 The target size of the queue. If random play is enabled then randomly picked
318 tracks will be added until the queue is at least this big.
320 .B sample_format \fIBITS\fB/\fIRATE\fB/\fICHANNELS
321 Describes the sample format expected by the \fBspeaker_command\fR (below). The
322 components of the format specification are as follows:
326 The number of bits per sample. Optionally, may be suffixed by \fBb\fR or
327 \fBl\fR for big-endian and little-endian words. If neither is used the native
328 byte order is assumed.
331 The number of samples per second.
334 The number of channels.
341 Defines the signal to be sent to track player process groups when tracks are
342 scratched. The default is \fBSIGKILL\fR.
344 Signals are specified by their full C name, i.e. \fBSIGINT\fR and not \fBINT\fR
345 or \fBInterrupted\fR or whatever.
347 .B speaker_backend \fINAME\fR
348 Selects the backend use by the speaker process. The following options are
353 Use the ALSA API. This is only available on Linux systems, on which it is the
357 Execute a command. This is the default if
359 is specified, or (currently) on non-Linux systems.
362 Transmit audio over the network. This is the default if
363 \fBbroadcast\fR is specified. You can use
364 .BR disorder-playrtp (1)
365 to receive and play the resulting stream on Linux and OS X.
368 .B sox_generation \fB0\fR|\fB1
369 Determines whether calls to \fBsox\fR(1) should use \fB-b\fR, \fB-x\fR, etc (if
370 the generation is 0) or \fB-\fIbits\fR, \fB-L\fR etc (if it is 1). The default
373 .B speaker_command \fICOMMAND
374 Causes the speaker subprocess to pipe audio data into shell command
375 \fICOMMAND\fR, rather than writing to a local sound card. The sample format is
380 Note that if the sample format is wrong then
382 is invoked to translate it. If
384 is not installed then this will not work.
386 .B restrict \fR[\fBscratch\fR] [\fBremove\fR] [\fBmove\fR]
387 Determine which operations are restricted to the submitter of a
388 track. By default, no operations are restricted, i.e. anyone can
389 scratch or remove anything.
391 If \fBrestrict scratch\fR or \fBrestrict remove\fR are set then only the user
392 that submitted a track can scratch or remove it, respectively.
394 If \fBrestrict move\fR is set then only trusted users can move tracks around in
397 If \fBrestrict\fR is used more than once then only the final use has any
400 .B scratch \fIPATH\fR
401 Specifies a scratch. When a track is scratched, a scratch track is
403 Scratches are played using the same logic as other tracks.
405 At least for the time being, path names of scratches must be encoded using
406 UTF-8 (which means that ASCII will do).
408 .B stopword \fIWORD\fR ...
409 Specifies one or more stopwords that should not take part in searches
411 .SS "Client Configuration"
413 .B connect \fIHOST SERVICE\fR
414 Connect to the address specified by \fIHOST\fR and port specified by
416 .SS "Web Interface Configuration"
418 .B refresh \fISECONDS\fR
419 Specifies the maximum refresh period in seconds. Default 15.
421 .B templates \fIPATH\fR ...
422 Specifies the directory containing templates used by the web
423 interface. If a template appears in more than one template directory
424 then the one in the earliest directory specified is chosen.
426 See below for further details.
428 .B transform \fITYPE\fR \fIREGEXP\fR \fISUBST\fR [\fICONTEXT\fR [\fIREFLAGS\fR]]
429 Determines how names are sorted and displayed in track choice displays.
431 \fITYPE\fR is the type of transformation; usually \fBtrack\fR or
432 \fBdir\fR but you can define your own.
434 \fICONTEXT\fR is a glob pattern matching the context. Standard contexts are
435 \fBsort\fR (which determines how directory names are sorted) and \fBdisplay\fR
436 (which determines how they are displayed). Again, you can define your
439 All the \fBtransform\fR directives are considered in order. If
440 the \fITYPE\fR, \fIREGEXP\fR and the \fICONTEXT\fR match
441 then a new track name is constructed from
442 \fISUBST\fR according to the substitution rules below. If several
443 match then each is executed in order.
445 If you supply no \fBtransform\fR directives at all then a default set will be
446 supplied automatically. But if you supply even one then you must supply all of
447 them. See the example config file for the defaults.
450 Specifies the URL of the web interface. This URL will be used in
453 This must be the full URL, e.g. \fBhttp://myhost/cgi-bin/jukebox\fR and not
454 \fB/cgi-bin/jukebox\fR.
455 .SS "Authentication Configuration"
457 .B allow \fIUSERNAME\fR \fIPASSWORD\fR
458 Specify a username/password pair.
460 .B password \fIPASSWORD\fR
463 .B trust \fIUSERNAME\fR
464 Allow \fIUSERNAME\fR to perform privileged operations such as shutting
465 down or reconfiguring the daemon, or becoming another user.
468 Specifies the user to run as. Only makes sense if invoked as root (or
471 .B username \fIUSERNAME\fR
472 Specify username. The default is taken from the environment variable
475 Configuration files are read in the following order:
479 .I pkgconfdir/config.private
480 Should be readable only by the jukebox group, and contain \fBallow\fR
481 commands for authorised users.
483 .I pkgconfdir/config.\fRUSER
484 Per-user system-controlled client configuration. Optional but if it
485 exists must be readable only by the relevant user. Would normally
486 contain a \fBpassword\fR directive.
488 .I ~\fRUSER\fI/.disorder/passwd
489 Per-user client configuration. Optional but if it exists must be
490 readable only by the relevant user. Would normally contain a
491 \fBpassword\fR directive.
492 .SH "GLOBAL PREFERENCES"
493 These are the values set with \fBset-global\fR.
496 If this is set an nonempty then randomly played tracks will always have at
497 least one of the listed tags.
499 Tags can contain any printing character except comma. Leading and trailing
500 spaces are not significant but internal spaces are. Tags in a list are
504 If this is set an nonempty then randomly played tracks will never have any of
508 If unset or \fByes\fR then play is enabled. Otherwise it is disabled. Use
509 \fBdisable\fR rather than setting it directly.
512 If unset or \fByes\fR then random play is enabled. Otherwise it is disabled.
513 Use \fBdisable\fR rather than setting it directly.
515 .SS "Raw Protocol Players"
516 Raw protocol players are expected to use the \fBdisorder\fR libao driver.
517 Programs that use libao generally have command line options to select the
518 driver and pass options to it.
520 The known driver options are:
523 The file descriptor to write to. If this is not specified then the driver
524 looks like the environment variable \fBDISORDER_RAW_FD\fR. If that is not set
525 then the default is 1 (i.e. standard output).
528 If this is set to a nonzero value then the driver will call \fB_exit\fR(2) if a
529 write to the output file descriptor fails. This is a workaround for buggy
530 players such as \fBogg123\fR that ignore write errors.
532 When \fBdisorder.cgi\fR wants to generate a page for an action it searches the
533 directories specified with \fBtemplates\fR for a matching file. It is
534 suggested that you leave the distributed templates unchanged and put
535 any customisations in an earlier entry in the template path.
537 The supplied templates are:
540 Display information about DisOrder.
543 Navigates through the track database to choose a track to play. The
544 \fBdir\fR argument gives the directory to look in; if it is missing
545 then the root directory is used.
548 Provides a front end to \fBchoose.html\fR which allows subsets of the top level
549 directories to be selected by initial letter.
552 The "front page", which usually shows the currently playing tracks and
554 Gets an HTTP \fBRefresh\fR header.
556 If the \fBmgmt\fR CGI argument is set to \fBtrue\fR then we include extra
557 buttons for moving tracks up and down in the queue. There is some logic in
558 \fBdisorder.cgi\fR to ensure that \fBmgmt=true\fR is preserved across refreshes
559 and redirects back into itself, but URLs embedded in web pages must include it
563 Views preferences. If the \fBfile\fR, \fBname\fR and \fBvalue\fR arguments are
564 all set then that preference is modified; if \fBfile\fR and \fBname\fR are set
565 but not \fBvalue\fR then the preference is deleted.
568 Lists recently played tracks.
571 Presents search results.
574 Primitive volume control.
576 Additionally, other standard files are included by these:
579 Included at the end of the main content \fB<DIV>\fR element.
582 Included at the start of the \fB<BODY>\fR element.
585 Included in the \fB<HEAD>\fR element.
588 Contains the default DisOrder stylesheet. You can override this by editing the
589 CSS or by replacing it all with a \fB<LINK>\fR to an external stylesheet.
591 Templates are ASCII files containing HTML documents, with an expansion
592 syntax to enable data supplied by the implementation to be inserted.
594 If you want to use characters outside the ASCII range, use either the
595 appropriate HTML entity, e.g. \fBé\fR, or an SGML numeric
596 character reference, e.g. \fBý\fR. Use \fB@\fR to insert a
597 literal \fB@\fR without falling foul of the expansion syntax.
598 .SS "Expansion Syntax"
599 Expansions are surrounded by at ("@") symbols take the form of a keyword
600 followed by zero or more arguments. Arguments may either be quoted by curly
601 brackets ("{" and "}") or separated by colons (":"). Both kinds may be mixed
602 in a single expansion, though doing so seems likely to cause confusion.
603 The descriptions below contain suggested forms for each
606 Leading and trailing whitespace in unquoted arguments is ignored, as is
607 whitespace (including newlines) following a close bracket ("}").
609 Arguments are recursively expanded before being interpreted, except for
610 \fITEMPLATE\fR arguments. These are expanded (possibly more than once) to
611 produce the final expansion.
612 (More than once means the same argument being expanded more than once
613 for different tracks or whatever, not the result of the first
614 expansion itself being re-expanded.)
616 Strings constructed by expansions (i.e. not literally copied from the template
617 text) are SGML-quoted: any character which does not stand for itself in #PCDATA
618 or a quoted attribute value is replaced by the appropriate numeric character
621 The exception to this is that such strings are \fInot\fR quoted when they are
622 generated in the expansion of a parameter.
624 In the descriptions below, the current track means the one set by
625 \fB@playing@\fR, \fB@recent@\fR or \fB@queue@\fR, not the one that is playing.
626 If none of these expansions are in force then there is no current track.
627 \fIBOOL\fR should always be either \fBtrue\fR or \fBfalse\fR.
629 The following expansion keywords are defined:
631 .B @#{\fICOMMENT\fB}@
635 The current action. This reports
637 if the action is really
643 .B @and{\fIBOOL\fB}{\fIBOOL\fB}\fR...\fB@
644 If there are no arguments, or all the arguments are \fBtrue\fB, then expands to
645 \fBtrue\fR, otherwise to \fBfalse\fR.
648 Expands to the value of CGI script argument \fINAME\fR.
651 The basename of the current directory component, in \fB@navigate@\fR.
653 .B @basename{\fIPATH\fB}@
654 The base name part of \fIPATH\fR.
656 .B @choose{\fIWHAT\fB}{\fITEMPLATE\fB}@
657 Expands \fITEMPLATE\fR repeatedly for each file or directory under
658 \fB@arg:directory@\fR.
659 \fIWHAT\fR should be either \fBfile\fR or \fBdirectory\fR.
660 Use \fB@file@\fR to get the display name or filename of the file or
662 Usually used in \fBchoose.html\fR.
665 The directory of the current directory component, in \fB@navigate@\fR.
667 .B @dirname{\fIPATH\fB}@
668 The directory part of \fIPATH\fR.
671 Expands to \fBtrue\fR if play is currently enabled, otherwise to \fBfalse\fR.
673 .B @eq{\fIA\fB}{\fIB\fB}
674 Expands to \fBtrue\fR if \fIA\fR and \fIB\fR are identical, otherwise to
678 Expands to the filename of the current file or directory, inside the template
679 argument to \fBchoose\fR.
681 .B @files{\fITEMPLATE\fB}
682 Expands \fITEMPLATE\fB once for each file indicated by the \fBdirectory\fR CGI
683 arg if it is present, or otherwise for the list of files counted by \fBfiles\fR
684 with names \fB0_file\fR, \fB1_file\fR etc.
687 The full path of the current directory component, in \fB@navigate@\fR.
690 The ID of the current track.
692 .B @if{\fIBOOL\fB}{\fITRUEPART\fB}{\fIFALSEPART\fB}@
693 If \fIBOOL\fR expands to \fBtrue\fR then expands to \fITRUEPART\fR, otherwise
694 to \fIFALSEPART\fR (which may be omitted).
696 .B @include:\fIPATH\fR@
697 Include the named file as if it were a template file. If \fIPATH\fR
698 starts with a \fB/\fR then it is used as-is; otherwise, ".html" is
699 appended and the template path is searched.
702 Expands to the index of the current file in \fB@queue@\fR, \fB@recent@\fR or
706 Expands to \fBtrue\fR if there are any directories in \fB@arg:directory@\fR,
707 otherwise to \fBfalse\fR.
710 Expands to \fBtrue\fR if there are any files in \fB@arg:directory@\fR,
711 otherwise to \fBfalse\fR.
714 Expands to \fBtrue\fR if this is the first repetition of a \fITEMPLATE\fR
715 argument in a loop (\fB@queue\fR or similar), otherwise to \fBfalse\fR.
718 Expands to \fBtrue\fR if this is the last repetition of a \fITEMPLATE\fR in a
719 loop, otherwise to \fBfalse\fR.
722 Expands to \fBtrue\fR if a track is playing, otherwise to \fBfalse\fR.
725 Expands to \fBtrue\fR if there are any tracks in the queue, otherwise to
729 Expands to \fBtrue\fR if the recently played list has any tracks in it,
730 otherwise to \fBfalse\fR.
732 .B @label:\fINAME\fR\fB@
733 Expands to the value of label \fINAME\fR. See the shipped \fIoptions.labels\fR
734 file for full documentation of the labels used by the standard templates.
737 Expands to the length of the current track.
739 .B @navigate{\fIDIRECTORY\fB}{\fITEMPLATE\fB}
740 Expands \fITEMPLATE\fR for each component of \fIDIRECTORY\fR in turn.
741 Use \fB@dirname\fR and \fB@basename@\fR to get the components of the path to
743 Usually used in \fBchoose.html\fR.
745 .B @ne{\fIA\fB}{\fIB\fB}
746 Expands to \fBtrue\fR if \fIA\fR and \fIB\fR differ, otherwise to \fBfalse\fR.
749 Expands to the number of files from \fB@files\fR (above).
752 Expands to a string including the time and process ID, intended to be
753 unique across invocations.
756 Expands to \fBfalse\fR if \fIBOOL\fR is \fBtrue\fR, otherwise to
759 .B @or{\fIBOOL\fB}{\fIBOOL\fB}\fR...\fB@
760 If at least one argument is \fBtrue\fB, then expands to \fBtrue\fR, otherwise
764 Expands to \fBeven\fR or \fBodd\fR depending on whether the current track is at
765 an even or odd position in \fB@queue@\fR, \fB@recent@\fR or \fB@files@\fR.
767 .B @part{\fICONTEXT\fB}{\fIPART\fB}@
768 Expands to track name part \fIPART\fR using context \fICONTEXT\fR for the
769 current track. The context may be omitted (and normally would be) and defaults
772 .B @part{\fICONTEXT\fB}{\fIPART\fB}{\fITRACK\fB}@
773 Expands to track name part \fIPART\fR using context \fICONTEXT\fR for
774 \fITRACK\fR. In this usage the context may not be omitted.
777 Expands to \fBtrue\fR if the current track is paused, else \fBfalse\fR.
779 .B @playing{\fITEMPLATE\fB}@
780 Expands \fITEMPLATE\fR using the playing track as the current track.
782 .B @pref{\fITRACK\fB}{\fIKEY\fB}@
783 Expand to the track preference, or the empty string if it is not set.
786 Expands to the name of the current preference, in the template
787 argument of \fB@prefs@\fR.
789 .B @prefs{\fIFILE\fB}{\fITEMPLATE\fB}@
790 Expands \fITEMPLATE\fR repeatedly, for each preference of track
792 Use \fB@prefname@\fR and \fB@prefvalue@\fR to get the name and value.
795 Expands to the value of the current preference, in the template
796 argument of \fB@prefs@\fR.
798 .B @queue{\fITEMPLATE\fB}@
799 Expands \fITEMPLATE\fR repeatedly using the each track on the queue in turn as
800 the current track. The track at the head of the queue comes first.
803 Expands to \fBtrue\fR if random play is currently enabled, otherwise to
806 .B @recent{\fITEMPLATE\fB}@
807 Expands \fITEMPLATE\fR repeatedly using the each recently played track in turn
808 as the current track. The most recently played track comes first.
810 .B @resolve{\fITRACK\fB}@
811 Resolve aliases for \fITRACK\fR and expands to the result.
813 .B @search{\fIPART\fB}\fR[\fB{\fICONTEXT\fB}\fR]\fB{\fITEMPLATE\fB}@
814 Expands \fITEMPLATE\fR once for each group of search results that have
815 a common value of track part \fIPART\fR.
816 The groups are sorted by the value of the part.
821 within the template will apply to one of the tracks in the group.
823 If \fICONTEXT\fR is specified it should be either \fBsort\fR or \fBdisplay\fR,
824 and determines the context for \fIPART\fR. The default is \fBsort\fR. Usually
825 you want \fBdisplay\fR for everything except the title and \fBsort\fR for the
826 title. If you use \fBsort\fR for artist and album then you are likely to get
830 Expands to the server's version string.
832 .B @shell{\fICOMMAND\fB}@
833 Expands to the output of \fICOMMAND\fR executed via the shell. \fBsh\fR is
834 searched for using \fBPATH\fR. If the command fails then this is logged but
838 In \fB@queue@\fR and \fB@recent@\fR, expands to the state of the current
839 track. Otherwise the empty string. Known states are:
843 The player terminated with nonzero status, but not because the track was
847 A scratch, in the queue.
850 No player could be found.
856 A randomly chosen track, in the queue.
859 This track was scratched.
862 An explicitly queued track, in the queue.
865 Some additional states only apply to playing tracks, so will never be seen in
866 the queue or recently-played list:
870 The track has been paused.
873 Interrupted because the server is shutting down.
876 This track is currently playing.
880 Expands to the server statistics.
883 Expands to the URL of the current page. Typically used in
885 arguments. If there is a
887 argument then it is changed to a fresh value.
892 .B @trackstate{\fIPATH\fB}@
893 Expands to the current track state: \fBplaying\fR if the track is actually
894 playing now, \fBqueued\fR if it is queued or the empty string otherwise.
896 .B @transform{\fIPATH\fB}{\fITYPE\fB}{\fICONTEXT\fB}@
897 Transform a path according to \fBtransform\fR (see above).
898 \fIPATH\fR should be a raw filename (of a track or directory).
899 \fITYPE\fR should be the transform type (e.g. \fItrack\fR or \fIdir\fR).
900 \fICONTEXT\fR should be the context, and can be omitted (the default
904 Expands to the canonical URL as defined in \fIpkgconfdir/config\fR.
906 .B @urlquote{\fISTRING\fB}@
907 URL-quote \fISTRING\fR.
910 Expands to \fBdisorder.cgi\fR's version string.
912 .B @volume:\fISPEAKER\fB@
913 The volume on the left or right speaker. \fISPEAKER\fR must be \fBleft\fB or
917 When the current track was played (or when it is expected to be played, if it
918 has not been played yet)
921 Who submitted the current track.
923 This is a file called \fIoptions\fR, searched for in the same manner
924 as templates. It includes numerous options for the control of the web
925 interface. The general syntax is the same as the main configuration
926 file, except that it should be encoded using UTF-8 (though this might
927 change to the current locale's character encoding; stick to ASCII to
930 The shipped \fIoptions\fR file includes four standard options files.
934 The default labels file. You wouldn't normally edit this directly - instead
935 supply your own commands in \fIoptions.user\fR. Have a look at the shipped
936 version of the file for documentation of labels used by the standard templates.
939 A user options file. Here you should put any overrides for the default
940 labels and any extra labels required by your modified templates.
942 Valid directives are:
944 .B columns \fINAME\fR \fIHEADING\fR...
945 Defines the columns used in \fB@playing@\fR and \fB@recent@\fB. \fINAME\fR
946 must be either \fBplaying\fR, \fBrecent\fR or \fBsearch\fR.
947 \fIHEADING\fR... is a list of
948 heading names. If a column is defined more than once then the last definitions
951 The heading names \fBbutton\fR, \fBlength\fR, \fBwhen\fR and \fBwho\fR
954 .B include \fIPATH\fR
955 Includes another file. If \fIPATH\fR starts with a \fB/\fR then it is
956 taken as is, otherwise it is searched for in the template path.
958 .B label \fINAME\fR \fIVALUE\fR
959 Define a label. If a label is defined more than once then the last definition
962 Some labels are defined inside \fBdisorder.cgi\fR and others by the
963 default templates. You can define your own labels and use them inside
966 When an undefined label is expanded, if it has a dot in its name then
967 the part after the final dot is used as its value. Otherwise the
968 whole name is used as the value.
970 Labels are no longer documented here, see the shipped \fIoptions.labels\fR file
972 .SH "REGEXP SUBSTITUTION RULES"
973 Regexps are PCRE regexps, as defined in \fBpcrepattern\fR(3). The
974 only option used is \fBPCRE_UTF8\fR. Remember that the configuration
975 file syntax means you have to escape backslashes and quotes inside
978 In a \fISUBST\fR string the following sequences are interpreted
982 These expand to the first to ninth bracketed subexpression.
985 This expands to the matched part of the subject string.
988 This expands to a single \fB$\fR symbol.
990 All other pairs starting with \fB$\fR are undefined (and might be used
991 for something else in the future, so don't rely on the current
994 If \fBi\fR is present in \fIREFLAGS\fR then the match is case-independent. If
995 \fBg\fR is present then all matches are replaced, otherwise only the first
998 What the web interface actually does is terminated by the \fBaction\fR CGI
999 argument. The values listed below are supported.
1001 Except as specified, all actions redirect back to the \fBplaying.html\fR
1002 template unless the \fBback\fR argument is present, in which case the URL it
1003 gives is used instead.
1005 Redirection to \fBplaying.html\fR preserves \fBmgmt=true\fR if it is present.
1008 Move track \fBid\fR by offset \fBdelta\fR.
1011 Play track \fBfile\fR, or if that is missing then play all the tracks in
1015 Don't change any state, but instead compute a suitable refresh time and include
1016 that in an HTTP header. Expands the \fBplaying.html\fR template rather than
1019 This is the default if \fBaction\fR is missing.
1022 Disables random play.
1025 Enables random play.
1028 Disables play completely.
1034 Pauses the current track.
1037 Remove track \fBid\fR.
1040 Resumes play after a pause.
1043 Scratch the playing track. If \fBid\fR is present it must match the playing
1047 Change the volume by \fBdelta\fR, or if that is missing then set it to the
1048 values of \fBleft\fR and \fBright\fR. Expands to the \fBvolume.html\fR template
1049 rather than redirecting.
1052 Adjust preferences from the \fBprefs.html\fR template (which it then expands
1053 rather than redirecting).
1057 is set then the cooked interface is assumed. The value of
1059 is used to determine which trackname preferences are set. By default the
1061 context is adjusted but this can be overridden with the
1065 argument is checked; if it is set then random play is enabled for that track,
1066 otherwise it is disabled.
1072 arguments are set then they are used to set a single preference.
1074 Otherwise if just the
1076 argument is set then that preference is deleted.
1078 It is recommended that links to the \fBprefs\fR action use \fB@resolve@\fR to
1079 enure that the real track name is always used. Otherwise if the preferences
1080 page is used to adjust a trackname_ preference, the alias may change, leading
1081 to the URL going stale.
1084 This action is generated automatically when an error occurs connecting to the
1085 server. The \fBerror\fR label is set to an indication of what the error is.
1086 .SH "TRACK NAME PARTS"
1087 The traditional track name parts are \fBartist\fR, \fBalbum\fR and \fBtitle\fR,
1088 with the obvious intended meaning. These are controlled by configuration and
1089 by \fBtrackname_\fR preferences.
1091 In addition there are two built-in parts, \fBpath\fR which is the whole path
1092 name and \fBext\fR which is the filename extension, including the initial dot
1093 (or the empty string if there is not extension).
1095 \fBdisorder\fR(1), \fBsox\fR(1), \fBdisorderd\fR(8), \fBdisorder-dump\fR(8),
1096 \fBpcrepattern\fR(3)
1097 .\" Local Variables:
~mdw / disorder / blob