+
/*
* This file is part of DisOrder.
* Copyright (C) 2004-2008 Richard Kettlewell
#include "disorder-cgi.h"
/** @brief For error template */
-char *dcgi_error_string;
+const char *dcgi_error_string;
+
+/** @brief For login template */
+const char *dcgi_status_string;
/** @brief Return @p i as a string */
static const char *make_index(int i) {
return s;
}
-/* @server-version
+/*! @server-version
*
* Expands to the server's version string, or a (safe to use) error
* value if the server is unavailable or broken.
return sink_writes(output, cgi_sgmlquote(v)) < 0 ? -1 : 0;
}
-/* @version
+/*! @version
*
* Expands to the local version string.
*/
cgi_sgmlquote(disorder_short_version_string)) < 0 ? -1 : 0;
}
-/* @url
+/*! @url
*
* Expands to the base URL of the web interface.
*/
cgi_sgmlquote(config->url)) < 0 ? -1 : 0;
}
-/* @arg{NAME}
+/*! @arg{NAME}
*
- * Expands to the CGI argument NAME, or the empty string if there is
- * no such argument.
+ * Expands to the UNQUOTED form of CGI argument NAME, or the empty string if
+ * there is no such argument. Use @argq for a quick way to quote the argument.
*/
static int exp_arg(int attribute((unused)) nargs,
char **args,
const char *s = cgi_get(args[0]);
if(s)
- return sink_writes(output,
- cgi_sgmlquote(s)) < 0 ? -1 : 0;
+ return sink_writes(output, s) < 0 ? -1 : 0;
else
return 0;
}
-/* @user
+/*! @argq{NAME}
+ *
+ * Expands to the (quoted) form of CGI argument NAME, or the empty string if
+ * there is no such argument. Use @arg for the unquoted argument.
+ */
+static int exp_argq(int attribute((unused)) nargs,
+ char **args,
+ struct sink *output,
+ void attribute((unused)) *u) {
+ const char *s = cgi_get(args[0]);
+
+ if(s)
+ return sink_writes(output, cgi_sgmlquote(s)) < 0 ? -1 : 0;
+ else
+ return 0;
+}
+
+/*! @user
*
* Expands to the logged-in username (which might be "guest"), or to
* the empty string if not connected.
return 0;
}
-/* @part{TRACK|ID}{PART}{CONTEXT}
+/*! @part{TRACK|ID}{PART}{CONTEXT}
*
* Expands to a track name part.
*
return 0;
}
-/* @quote{STRING}
+/*! @quote{STRING}
*
* SGML-quotes STRING. Note that most expansion results are already suitable
* quoted, so this expansion is usually not required.
return sink_writes(output, cgi_sgmlquote(args[0])) < 0 ? -1 : 0;
}
-/* @who{ID}
+/*! @who{ID}
*
* Expands to the name of the submitter of track ID, which must be a playing
* track, in the queue, or in the recent list.
return 0;
}
-/* @when{ID}
+/*! @when{ID}
*
* Expands to the time a track started or is expected to start. The track must
* be a playing track, in the queue, or in the recent list.
return sink_writes(output, " ") < 0 ? -1 : 0;
}
-/* @length{ID|TRACK}
+/*! @length{ID|TRACK}
*
* Expands to the length of a track, identified by its queue ID or its name.
* If it is the playing track (identified by ID) then the amount played so far
return sink_writes(output, " ") < 0 ? -1 : 0;
}
-/* @removable{ID}
+/*! @removable{ID}
*
* Expands to "true" if track ID is removable (or scratchable, if it is the
* playing track) and "false" otherwise.
(dcgi_rights, disorder_user(dcgi_client), q));
}
-/* @movable{ID}
+/*! @movable{ID}{DIR}
*
* Expands to "true" if track ID is movable and "false" otherwise.
+ *
+ * DIR (which is optional) should be a non-zero integer. If it is negative
+ * then the intended move is down (later in the queue), if it is positive then
+ * the intended move is up (earlier in the queue). The first track is not
+ * movable up and the last track not movable down.
*/
-static int exp_movable(int attribute((unused)) nargs,
+static int exp_movable(int nargs,
char **args,
struct sink *output,
void attribute((unused)) *u) {
if(!q || !dcgi_client)
return mx_bool_result(output, 0);
+ if(nargs > 1) {
+ const long dir = atoi(args[1]);
+
+ if(dir > 0 && q == dcgi_queue)
+ return mx_bool_result(output, 0);
+ if(dir < 0 && q->next == 0)
+ return mx_bool_result(output, 0);
+ }
dcgi_lookup(DCGI_RIGHTS);
return mx_bool_result(output,
- right_movable(dcgi_rights, disorder_user(dcgi_client), q));
+ right_movable(dcgi_rights,
+ disorder_user(dcgi_client),
+ q));
}
-/* @playing{TEMPLATE}
+/*! @playing{TEMPLATE}
*
- * Expands to TEMPLATE, with:
- * - @id@ expanded to the queue ID of the playing track
- * - @track@ expanded to its UNQUOTED name
+ * Expands to TEMPLATE, with the following expansions:
+ * - @id: the queue ID of the playing track
+ * - @track: the playing track's
+ UNQUOTED name
*
* If no track is playing expands to nothing.
*
output, u);
}
-/* @queue{TEMPLATE}
+/*! @queue{TEMPLATE}
*
* For each track in the queue, expands TEMPLATE with the following expansions:
- * - @id@ to the queue ID of the track
- * - @track@ to the UNQUOTED track name
- * - @index@ to the track number from 0
- * - @parity@ to "even" or "odd" alternately
- * - @first@ to "true" on the first track and "false" otherwise
- * - @last@ to "true" on the last track and "false" otherwise
+ * - @id: the queue ID of the track
+ * - @track: the UNQUOTED track name
+ * - @index: the track number from 0
+ * - @parity: "even" or "odd" alternately
+ * - @first: "true" on the first track and "false" otherwise
+ * - @last: "true" on the last track and "false" otherwise
*/
static int exp_queue(int attribute((unused)) nargs,
const struct mx_node **args,
return 0;
}
-/* @recent{TEMPLATE}
+/*! @recent{TEMPLATE}
*
* For each track in the recently played list, expands TEMPLATE with the
* following expansions:
- * - @id@ to the queue ID of the track
- * - @track@ to the UNQUOTED track name
- * - @index@ to the track number from 0
- * - @parity@ to "even" or "odd" alternately
- * - @first@ to "true" on the first track and "false" otherwise
- * - @last@ to "true" on the last track and "false" otherwise
+ * - @id: the queue ID of the track
+ * - @track: the UNQUOTED track name
+ * - @index: the track number from 0
+ * - @parity: "even" or "odd" alternately
+ * - @first: "true" on the first track and "false" otherwise
+ * - @last: "true" on the last track and "false" otherwise
*/
static int exp_recent(int attribute((unused)) nargs,
const struct mx_node **args,
return 0;
}
-/* @new{TEMPLATE}
+/*! @new{TEMPLATE}
*
* For each track in the newly added list, expands TEMPLATE wit the following
* expansions:
- * - @track@ to the UNQUOTED track name
- * - @index@ to the track number from 0
- * - @parity@ to "even" or "odd" alternately
- * - @first@ to "true" on the first track and "false" otherwise
- * - @last@ to "true" on the last track and "false" otherwise
+ * - @track: the UNQUOTED track name
+ * - @index: the track number from 0
+ * - @parity: "even" or "odd" alternately
+ * - @first: "true" on the first track and "false" otherwise
+ * - @last: "true" on the last track and "false" otherwise
*
- * Note that unlike @playing@, @queue@ and @recent@ which are otherwise
- * superficially similar, there is no @id@ sub-expansion here.
+ * Note that unlike @playing, @queue and @recent which are otherwise
+ * superficially similar, there is no @id sub-expansion here.
*/
static int exp_new(int attribute((unused)) nargs,
const struct mx_node **args,
return 0;
}
-/* @volume{CHANNEL}
+/*! @volume{CHANNEL}
*
* Expands to the volume in a given channel. CHANNEL must be "left" or
* "right".
? dcgi_volume_left : dcgi_volume_right) < 0 ? -1 : 0;
}
-/* @isplaying
+/*! @isplaying
*
* Expands to "true" if there is a playing track, otherwise "false".
*/
return mx_bool_result(output, !!dcgi_playing);
}
-/* @isqueue
+/*! @isqueue
*
* Expands to "true" if there the queue is nonempty, otherwise "false".
*/
return mx_bool_result(output, !!dcgi_queue);
}
-/* @isrecent@
+/*! @isrecent@
*
* Expands to "true" if there the recently played list is nonempty, otherwise
* "false".
return mx_bool_result(output, !!dcgi_recent);
}
-/* @isnew
+/*! @isnew
*
* Expands to "true" if there the newly added track list is nonempty, otherwise
* "false".
return mx_bool_result(output, !!dcgi_nnew);
}
-/* @pref{TRACK}{KEY}
+/*! @pref{TRACK}{KEY}
*
* Expands to a track preference.
*/
return 0;
}
-/* @prefs{TRACK}{TEMPLATE}
+/*! @prefs{TRACK}{TEMPLATE}
*
* For each track preference of track TRACK, expands TEMPLATE with the
* following expansions:
- * - @name@ to the UNQUOTED preference name
- * - @index@ to the preference number from 0
- * - @value@ to the UNQUOTED preference value
- * - @parity@ to "even" or "odd" alternately
- * - @first@ to "true" on the first preference and "false" otherwise
- * - @last@ to "true" on the last preference and "false" otherwise
+ * - @name: the UNQUOTED preference name
+ * - @index: the preference number from 0
+ * - @value: the UNQUOTED preference value
+ * - @parity: "even" or "odd" alternately
+ * - @first: "true" on the first preference and "false" otherwise
+ * - @last: "true" on the last preference and "false" otherwise
*
- * Use @quote@ to quote preference names and values where necessary; see below.
+ * Use @quote to quote preference names and values where necessary; see below.
*/
static int exp_prefs(int attribute((unused)) nargs,
const struct mx_node **args,
return 0;
}
-/* @transform{TRACK}{TYPE}{CONTEXT}
+/*! @transform{TRACK}{TYPE}{CONTEXT}
*
* Transforms a track name (if TYPE is "track") or directory name (if type is
* "dir"). CONTEXT should be the context, if it is left out then "display" is
return sink_writes(output, cgi_sgmlquote(t)) < 0 ? -1 : 0;
}
-/* @enabled@
+/*! @enabled@
*
* Expands to "true" if playing is enabled, otherwise "false".
*/
return mx_bool_result(output, e);
}
-/* @random-enabled
+/*! @random-enabled
*
* Expands to "true" if random play is enabled, otherwise "false".
*/
return mx_bool_result(output, e);
}
-/* @trackstate{TRACK}
+/*! @trackstate{TRACK}
*
* Expands to "playing" if TRACK is currently playing, or "queue" if it is in
* the queue, otherwise to nothing.
return 0;
}
-/* @thisurl
+/*! @thisurl
*
* Expands to an UNQUOTED URL which points back to the current page. (NB it
* might not be byte for byte identical - for instance, CGI arguments might be
return sink_writes(output, cgi_thisurl(config->url)) < 0 ? -1 : 0;
}
-/* @resolve{TRACK}
+/*! @resolve{TRACK}
*
* Expands to an UNQUOTED name for the TRACK that is not an alias, or to
* nothing if it is not a valid track.
return 0;
}
-/* @paused
+/*! @paused
*
* Expands to "true" if the playing track is paused, to "false" if it is
* playing (or if there is no playing track at all).
static int exp_paused(int attribute((unused)) nargs,
char attribute((unused)) **args,
struct sink *output,
- void attribute((unused)) *u) {
+ void attribute((unused)) *u) {
dcgi_lookup(DCGI_PLAYING);
return mx_bool_result(output, (dcgi_playing
&& dcgi_playing->state == playing_paused));
}
-/* @state{ID}@
+/*! @state{ID}@
*
* Expands to the current state of track ID.
*/
return 0;
}
-/* @right{RIGHT}{WITH-RIGHT}{WITHOUT-RIGHT}@
+/*! @right{RIGHT}{WITH-RIGHT}{WITHOUT-RIGHT}@
*
* Expands to WITH-RIGHT if the current user has right RIGHT, otherwise to
* WITHOUT-RIGHT. The WITHOUT-RIGHT argument may be left out.
return 0;
}
-/* @userinfo{PROPERTY}
+/*! @userinfo{PROPERTY}
*
* Expands to the named property of the current user.
*/
return 0;
}
-/* @error
+/*! @error
*
* Expands to the latest error string.
*/
char attribute((unused)) **args,
struct sink *output,
void attribute((unused)) *u) {
- return sink_writes(output, cgi_sgmlquote(dcgi_error_string)) < 0 ? -1 : 0;
+ return sink_writes(output, dcgi_error_string ? dcgi_error_string : "")
+ < 0 ? -1 : 0;
+}
+
+/*! @status
+ *
+ * Expands to the latest status string.
+ */
+static int exp_status(int attribute((unused)) nargs,
+ char attribute((unused)) **args,
+ struct sink *output,
+ void attribute((unused)) *u) {
+ return sink_writes(output, dcgi_status_string ? dcgi_status_string : "")
+ < 0 ? -1 : 0;
+}
+
+/*! @image{NAME}
+ *
+ * Expands to the URL of the image called NAME.
+ *
+ * Firstly if there is a label called images.NAME then the image stem will be
+ * the value of that label. Otherwise the stem will be NAME.png.
+ *
+ * If the label url.static exists then it will give the base URL for images.
+ * Otherwise the base url will be /disorder/.
+ */
+static int exp_image(int attribute((unused)) nargs,
+ char **args,
+ struct sink *output,
+ void attribute((unused)) *u) {
+ const char *url, *stem;
+ char *labelname;
+
+ /* Compute the stem */
+ byte_xasprintf(&labelname, "images.%s", args[0]);
+ if(option_label_exists(labelname))
+ stem = option_label(labelname);
+ else
+ byte_xasprintf((char **)&stem, "%s.png", args[0]);
+ /* If the stem looks like it's reasonalby complete, use that */
+ if(stem[0] == '/'
+ || !strncmp(stem, "http:", 5)
+ || !strncmp(stem, "https:", 6))
+ url = stem;
+ else {
+ /* Compute the URL */
+ if(option_label_exists("url.static"))
+ byte_xasprintf((char **)&url, "%s/%s",
+ option_label("url.static"), stem);
+ else
+ /* Default base is /disorder */
+ byte_xasprintf((char **)&url, "/disorder/%s", stem);
+ }
+ return sink_writes(output, cgi_sgmlquote(url)) < 0 ? -1 : 0;
+}
+
+/** @brief Compare two @ref entry objects */
+int dcgi_compare_entry(const void *a, const void *b) {
+ const struct dcgi_entry *ea = a, *eb = b;
+
+ return compare_tracks(ea->sort, eb->sort,
+ ea->display, eb->display,
+ ea->track, eb->track);
+}
+
+/** @brief Implementation of exp_tracks() and exp_dirs() */
+static int exp__files_dirs(int nargs,
+ const struct mx_node **args,
+ struct sink *output,
+ void *u,
+ const char *type,
+ int (*fn)(disorder_client *client,
+ const char *name,
+ const char *re,
+ char ***vecp,
+ int *nvecp)) {
+ char **tracks, *dir, *re;
+ int n, ntracks, rc;
+ const struct mx_node *m;
+ struct dcgi_entry *e;
+
+ if((rc = mx_expandstr(args[0], &dir, u, "argument #0 (DIR)")))
+ return rc;
+ if(nargs == 3) {
+ if((rc = mx_expandstr(args[1], &re, u, "argument #1 (RE)")))
+ return rc;
+ m = args[2];
+ } else {
+ re = 0;
+ m = args[1];
+ }
+ if(!dcgi_client)
+ return 0;
+ /* Get the list */
+ if(fn(dcgi_client, dir, re, &tracks, &ntracks))
+ return 0;
+ /* Sort it. NB trackname_transform() does not go to the server. */
+ e = xcalloc(ntracks, sizeof *e);
+ for(n = 0; n < ntracks; ++n) {
+ e->track = tracks[n];
+ e[n].track = tracks[n];
+ e[n].sort = trackname_transform(type, tracks[n], "sort");
+ e[n].display = trackname_transform(type, tracks[n], "display");
+ }
+ qsort(e, ntracks, sizeof (struct dcgi_entry), dcgi_compare_entry);
+ /* Expand the subsiduary templates. We chuck in @sort and @display because
+ * it is particularly easy to do so. */
+ for(n = 0; n < ntracks; ++n)
+ if((rc = mx_expand(mx_rewritel(m,
+ "index", make_index(n),
+ "parity", n % 2 ? "odd" : "even",
+ "track", tracks[n],
+ "first", n == 0 ? "true" : "false",
+ "last", n + 1 == ntracks ? "false" : "true",
+ "sort", e[n].sort,
+ "display", e[n].display,
+ (char *)0),
+ output, u)))
+ return rc;
+ return 0;
+
+}
+
+/*! @tracks{DIR}{RE}{TEMPLATE}
+ *
+ * For each track below DIR, expands TEMPLATE with the
+ * following expansions:
+ * - @track: the UNQUOTED track name
+ * - @index: the track number from 0
+ * - @parity: "even" or "odd" alternately
+ * - @first: "true" on the first track and "false" otherwise
+ * - @last: "true" on the last track and "false" otherwise
+ * - @sort: the sort key for this track
+ * - @display: the UNQUOTED display string for this track
+ *
+ * RE is optional and if present is the regexp to match against.
+ */
+static int exp_tracks(int nargs,
+ const struct mx_node **args,
+ struct sink *output,
+ void *u) {
+ return exp__files_dirs(nargs, args, output, u, "track", disorder_files);
+}
+
+/*! @dirs{DIR}{RE}{TEMPLATE}
+ *
+ * For each directory below DIR, expands TEMPLATE with the
+ * following expansions:
+ * - @track: the UNQUOTED directory name
+ * - @index: the directory number from 0
+ * - @parity: "even" or "odd" alternately
+ * - @first: "true" on the first directory and "false" otherwise
+ * - @last: "true" on the last directory and "false" otherwise
+ * - @sort: the sort key for this directory
+ * - @display: the UNQUOTED display string for this directory
+ *
+ * RE is optional and if present is the regexp to match against.
+ */
+static int exp_dirs(int nargs,
+ const struct mx_node **args,
+ struct sink *output,
+ void *u) {
+ return exp__files_dirs(nargs, args, output, u, "dir", disorder_directories);
+}
+
+static int exp__search_shim(disorder_client *c, const char *terms,
+ const char attribute((unused)) *re,
+ char ***vecp, int *nvecp) {
+ return disorder_search(c, terms, vecp, nvecp);
+}
+
+/*! @search{KEYWORDS}{TEMPLATE}
+ *
+ * For each track matching KEYWORDS, expands TEMPLATE with the
+ * following expansions:
+ * - @track: the UNQUOTED directory name
+ * - @index: the directory number from 0
+ * - @parity: "even" or "odd" alternately
+ * - @first: "true" on the first directory and "false" otherwise
+ * - @last: "true" on the last directory and "false" otherwise
+ * - @sort: the sort key for this track
+ * - @display: the UNQUOTED display string for this track
+ */
+static int exp_search(int nargs,
+ const struct mx_node **args,
+ struct sink *output,
+ void *u) {
+ return exp__files_dirs(nargs, args, output, u, "track", exp__search_shim);
+}
+
+/*! @label{NAME}
+ *
+ * Expands to label NAME from options.labels. Undefined lables expand to the
+ * last dot-separated component, e.g. X.Y.Z to Z.
+ */
+static int exp_label(int attribute((unused)) nargs,
+ char **args,
+ struct sink *output,
+ void attribute((unused)) *u) {
+ return sink_writes(output, option_label(args[0])) < 0 ? -1 : 0;
}
+/*! @breadcrumbs{DIR}{TEMPLATE}
+ *
+ * Expands TEMPLATE for each directory in the path up to DIR, excluding the root
+ * but including DIR itself, with the following expansions:
+ * - @dir: the directory
+ * - @last: "true" if this is the last directory, otherwise "false"
+ *
+ * DIR must be an absolute path.
+ */
+static int exp_breadcrumbs(int attribute((unused)) nargs,
+ const struct mx_node **args,
+ struct sink *output,
+ void attribute((unused)) *u) {
+ int rc;
+ char *dir, *parent, *ptr;
+
+ if((rc = mx_expandstr(args[0], &dir, u, "argument #0 (DIR)")))
+ return rc;
+ /* Reject relative paths */
+ if(dir[0] != '/') {
+ error(0, "breadcrumbs: '%s' is a relative path", dir);
+ return 0;
+ }
+ /* Skip the root */
+ ptr = dir + 1;
+ while(*ptr) {
+ /* Find the end of this directory */
+ while(*ptr && *ptr != '/')
+ ++ptr;
+ parent = xstrndup(dir, ptr - dir);
+ if((rc = mx_expand(mx_rewritel(args[1],
+ "dir", parent,
+ "last", *ptr ? "false" : "true",
+ (char *)0),
+ output, u)))
+ return rc;
+ if(*ptr)
+ ++ptr;
+ }
+ return 0;
+}
+
/** @brief Register DisOrder-specific expansions */
void dcgi_expansions(void) {
mx_register("arg", 1, 1, exp_arg);
+ mx_register("argq", 1, 1, exp_argq);
mx_register("enabled", 0, 0, exp_enabled);
mx_register("error", 0, 0, exp_error);
+ mx_register("image", 1, 1, exp_image);
mx_register("isnew", 0, 0, exp_isnew);
mx_register("isplaying", 0, 0, exp_isplaying);
- mx_register("isplaying", 0, 0, exp_isqueue);
+ mx_register("isqueue", 0, 0, exp_isqueue);
mx_register("isrecent", 0, 0, exp_isrecent);
+ mx_register("label", 1, 1, exp_label);
mx_register("length", 1, 1, exp_length);
- mx_register("movable", 1, 1, exp_movable);
+ mx_register("movable", 1, 2, exp_movable);
mx_register("part", 2, 3, exp_part);
mx_register("paused", 0, 0, exp_paused);
mx_register("pref", 2, 2, exp_pref);
mx_register("resolve", 1, 1, exp_resolve);
mx_register("server-version", 0, 0, exp_server_version);
mx_register("state", 1, 1, exp_state);
+ mx_register("status", 0, 0, exp_status);
mx_register("thisurl", 0, 0, exp_thisurl);
mx_register("trackstate", 1, 1, exp_trackstate);
mx_register("transform", 2, 3, exp_transform);
mx_register("volume", 1, 1, exp_volume);
mx_register("when", 1, 1, exp_when);
mx_register("who", 1, 1, exp_who);
+ mx_register_magic("breadcrumbs", 2, 2, exp_breadcrumbs);
+ mx_register_magic("dirs", 2, 3, exp_dirs);
mx_register_magic("new", 1, 1, exp_new);
mx_register_magic("playing", 0, 1, exp_playing);
mx_register_magic("prefs", 2, 2, exp_prefs);
mx_register_magic("queue", 1, 1, exp_queue);
mx_register_magic("recent", 1, 1, exp_recent);
mx_register_magic("right", 1, 3, exp_right);
+ mx_register_magic("search", 2, 2, exp_search);
+ mx_register_magic("tracks", 2, 3, exp_tracks);
}
/*
~mdw / disorder / blobdiff