634 lines
21 KiB
Julia
634 lines
21 KiB
Julia
"""
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Implementation of Subsonic APIs: http://www.subsonic.org/pages/api.jsp
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"""
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"Subsonic API compatible version"
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const apiversion = "1.16.1"
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const domain = "nixo.xyz"
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const ffmpeg_threads = 0
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"""
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Helper function that prepares a subsonic response.
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"""
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function subsonic(; version = "1.10.1", status = "ok")
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xdoc = XMLDocument()
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xroot = create_root(xdoc, "subsonic-response")
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set_attribute(xroot, "xmlns", "http://subsonic.org/restapi")
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set_attribute(xroot, "status", status)
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set_attribute(xroot, "version", version)
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(xdoc, xroot)
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end
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"Wrap a block inside the subsonic response to ease the free() of the XML"
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macro subsonic(block)
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return quote
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(xdoc, xroot) = subsonic(version = $apiversion)
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$block
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doc_str = string(xdoc)
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free(xdoc)
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return doc_str
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end
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end
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function subsonic_return(doc)
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doc_str = string(doc)
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free(doc)
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doc_str
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end
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"Used to test connectivity with the server. Takes no extra parameters."
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ping() = @subsonic(nothing)
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"Get details about the software license. Takes no extra parameters."
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function getLicense()
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@subsonic begin
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set_attributes(new_child(xroot, "license"),
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[
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("valid", "true"),
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("email", string("admin@",domain)),
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("licenseExpires", "never"),
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("info", "This is juliaSonic, licensed under GPLv3+")
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])
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end
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end
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"Returns all configured top-level music folders. Takes no extra parameters."
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function getMusicFolders()
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@subsonic begin
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folders = new_child(xroot, "musicFolders")
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folder = new_child(folders, "musicFolder")
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set_attributes(folder, [("id", "1"),
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("name", "Music")])
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end
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end
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# Implement:
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# getIndexes
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function getMusicDirectory(req)
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query = HTTP.URIs.queryparams(req[:query])
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id = get(query, "id", "")
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isempty(id) && return missing_parameter()
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(xdoc, xroot) = subsonic(version = "1.0.0")
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directory = new_child(xroot, "directory")
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# We simulate directory listing. Root directory has id ==
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# 1. Other directories are identified by uuids
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artists = Beets.artists()
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## Structure is: Music(id=1)/Artist/Album/Song
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if id == "1"
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# List artists
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for artist in artists
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content = new_child(directory, "child")
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set_attributes(content,
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[("id", artist.uuid),
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# Always under /Music, id = 1
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("parent", "1"),
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("name", artist.name),
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# ("starred", "FIXME")
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])
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end
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else
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# List content
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# 1. Search if uuid matches artist
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# 2. Else, check if matches albums
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artistmatch = findfirst(a -> a.uuid == id, artists)
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albums = Beets.albums;
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if artistmatch != nothing
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@show id
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artist = artists[artistmatch]
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set_attributes(directory,
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[("id", artist.uuid),
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# Always under /Music, id = 1
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("parent", "1"),
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("name", artist.name),
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("starred", "2013-11-02T12:30:00")
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])
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# List albums
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content = new_child(directory, "child")
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for albumn in findall(alb -> alb.artist == artist, albums)
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album = albums[albumn]
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set_attributes(content, [
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("id", album.uuid),
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("parent", album.artist.uuid),
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# ("artistId", album.artist.uuid),
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("title", album.title),
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("artist", album.artist.name),
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("isDir", "true"),
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("coverArt", album.uuid),
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])
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end
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elseif false
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content = new_child(directory, "child")
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# List album content (songs)
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set_attributes(content, [
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("id", "FIXME"),
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("parent", "PARENT:ID"),
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("title", "FIXME"),
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("isDir", "false"),
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("album", "FIXME"),
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("artist", "FIXME"),
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("track", "FIXME"),
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("year", "FIXME"),
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("genre", "FIXME"),
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("coverArt", "FIXME"),
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("size", "FIXME"),
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# FIXME
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("contentType", "audio/mpeg"),
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("suffix", "FIXME"),
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("duration", "FIXME"),
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("bitrate", "FIXME"),
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("path", "FIXME"),
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])
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else
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return not_found()
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end
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end
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doc_str = string(xdoc)
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free(xdoc)
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return doc_str
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end
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"Returns all genres."
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function getGenres()
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(xdoc, xroot) = subsonic()
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songs = Beets.songs();
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res = Dict{String,Int}()
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genrelist = strip.(sort(filter!(!isempty, Beets.genre.(Beets.albums))))
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for genre in genrelist
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t = get(res, genre, 0)
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res[genre] = t+1
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end
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genres = new_child(xroot, "genres")
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for k in keys(res)
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genre = new_child(genres, "genre")
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set_attributes(genre, [
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("songCount", string(res[k])),
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# FIXME
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("albumCount", string(count(genrelist .== k))),
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])
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add_text(genre, k)
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end
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return subsonic_return(xdoc)
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end
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"Similar to getIndexes, but organizes music according to ID3 tags."
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function getArtists()
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(xdoc, xroot) = subsonic()
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indexes = new_child(xroot, "artists")
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set_attribute(indexes, "ignoredArticles", "")
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artists = sort(Beets.artists(), by = a -> a.name)
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firstletters = unique(first.(filter(!isempty, Beets.name.(artists))) .|> uppercase)
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for index in string.(firstletters)
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indexXML = new_child(indexes, "index")
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set_attribute(indexXML, "name", index)
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for artist in filter(x -> startswith(x.name, index), artists)
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artistXML = push!(indexXML, artist)
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end
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end
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return subsonic_return(xdoc)
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end
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"""Returns details for an artist, including a list of albums.
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This method organizes music according to ID3 tags."""
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function getArtist(id::String)
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artists = Beets.artists()
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matching = findfirst(a -> a.uuid == id, artists)
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matching === nothing && return not_found("id")
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artist = artists[matching]
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# Create the response
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(xdoc, xroot) = subsonic()
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artistXML = push!(xroot, artist)
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for album in sort(Beets.album(artist))
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push!(artistXML, album)
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end
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return subsonic_return(xdoc)
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end
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function getArtist(req::Dict)
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query = HTTP.URIs.queryparams(req[:query])
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artistid = get(query, "id", "")
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isempty(artistid) && return missing_parameter("id")
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return getArtist(string(artistid))
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end
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function getAlbum(req::Dict)
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query = HTTP.URIs.queryparams(req[:query])
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albumid = get(query, "id", "")
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isempty(albumid) && return missing_parameter("id")
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return getAlbum(albumid)
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end
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function getAlbum(albumid)
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album = Beets.album(string(albumid))
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album === nothing && return not_found("album")
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(xdoc, xroot) = subsonic()
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# push!(albumXML, [(s, album) for s in album.songs])
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append!(xroot, album)
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return subsonic_return(xdoc)
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end
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function getAlbumList(req::Dict)
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query = HTTP.URIs.queryparams(req[:query])
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albumtype = get(query, "type", "")
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isempty(albumtype) && return missing_parameter("type")
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@subsonic begin
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list = new_child(xroot, "albumList")
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push!.(Ref(list), Beets.albums)
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end
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end
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function getSong(req)
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query = HTTP.URIs.queryparams(req[:query])
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id = get(query, "id", "")
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isempty(id) && return missing_parameter()
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matching = [album for album in Beets.albums
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if any(getfield.(album.songs, :uuid) .== id)]
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length(matching) == 0 && return not_found("song")
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(xdoc, xroot) = subsonic()
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push!(xroot, (first(filter(s -> s.uuid == id, first(matching).songs)),
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first(matching)))
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return subsonic_return(xdoc)
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end
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import Random
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function getRandomSongs(; size = 10,
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genre::Union{Missing,String} = missing,
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fromYear::Union{Missing,Int} = missing,
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toYear::Union{Missing,Int} = missing,
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musicFolderId::Union{Missing,String} = missing)
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songs = Beets.songs();
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# Randomize
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songs = songs[Random.randperm(length(songs))];
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# Filter
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!ismissing(genre) && filter!(x -> strip(x.genre) == strip(genre), songs)
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!ismissing(fromYear) && filter!(x -> x.year > fromYear, songs)
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!ismissing(toYear) && filter!(x -> x.year < toYear, songs)
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# Take size
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songs = length(songs) > size ? songs[1:size] : songs;
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# Create output
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(xdoc, xroot) = subsonic()
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list = new_child(xroot, "randomSongs")
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albums = Beets.albums;
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for song in songs
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album = filter(x -> song in x.songs, albums) |> first
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push!(list, (song, album))
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end
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return subsonic_return(xdoc)
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end
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function getRandomSongs(req)
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query = HTTP.URIs.queryparams(req[:query])
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# name Required Default Notes
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# size No 10 The maximum number of songs to return. Max 500.
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size = parse(Int, get(query, "size", "10"))
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size = size > 500 ? 500 : size
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# genre No Only returns songs belonging to this genre.
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genre = get(query, "genre", missing)
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# fromYear No Only return songs published after or in this year.
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# toYear No Only return songs published before or in this year.
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fy = get(query, "fromYear", missing)
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fromY = ismissing(fy) ? missing : parse(Int, fy)
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ty = get(query, "toYear", missing)
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toY = ismissing(ty) ? missing : parse(Int, ty)
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getRandomSongs(size = size,
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genre = ismissing(genre) ? missing : string(genre),
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fromYear = fromY, toYear = toY)
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end
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function match(q::Regex, album::Beets.Album)
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(match(q, album.title) !== nothing) || (match(q, album.artist.name) !== nothing) ||
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any(map(s -> match(q, s.title) !== nothing, album.songs))
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end
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function makequery(q::String)
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nq = replace(lowercase(q), "*" => ".*")
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nq = string(".*", nq)
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return Regex(nq)
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end
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function search3(req; dlalbum = println, dlall = println)
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query = HTTP.URIs.queryparams(req[:query])
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q = get(query, "query", "")
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isempty(q) && return missing_parameter("query")
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if req[:login][:user].upload && length(q) > 2 && q[end-1:end] == "!a"
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@info "Downloading single album"
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dlalbum(string(strip(q[1:end-2])))
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return @subsonic(nothing)
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elseif req[:login][:user].upload && length(q) > 2 && q[end-1:end] == "!d"
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@info "Downloading discography!"
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dlall(string(strip(q[1:end-2])))
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return @subsonic(nothing)
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(xdoc, xroot) = subsonic()
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results = new_child(xroot, "searchResult3")
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# TODO: Push the results so that we can see what download just started
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# push!(results, list)
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return subsonic_return(xdoc)
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end
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songCount = parse(Int, get(query, "songCount", "20"))
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# TODO:
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# artistCount No 20 Maximum number of artists to return.
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# artistOffset No 0 Search result offset for artists. Used for paging.
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# albumCount No 20 Maximum number of albums to return.
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# albumOffset No 0 Search result offset for albums. Used for paging.
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# songOffset No 0 Search result offset for songs. Used for paging.
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# musicFolderId No (Since 1.12.0) Only return results from music folder with the given ID. See getMusicFolders.
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(xdoc, xroot) = subsonic()
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results = new_child(xroot, "searchResult3")
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k = makequery(string(q))
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matchingartists = Beets.artists()
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filter!(a -> Base.match(k, lowercase(a.name)) !== nothing, matchingartists)
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albums = Beets.albums;
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matchingalbums = filter(a -> Base.match(k, lowercase(a.title)) !== nothing,
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albums)
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matchingsongs = Tuple{Beets.Song,Beets.Album}[]
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for album in albums, song in album.songs
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if Base.match(k, lowercase(song.title)) !== nothing
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push!(matchingsongs, (song, album))
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end
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end
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# Artists
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push!.(Ref(results), matchingartists)
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# # Albums
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push!.(Ref(results), matchingalbums)
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# Songs
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push!(results, matchingsongs)
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return subsonic_return(xdoc)
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end
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"Create (or update) a playlist" # WTF create can update?
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function createPlaylist(req)
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global user_playlists
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#=
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Parameter Required Default Comment
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playlistId Yes (if updating) The playlist ID.
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name Yes (if creating) The human-readable name of the playlist.
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songId No ID of a song in the playlist. Use one songId parameter for each song in the playlist.
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=#
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query = HTTP.URIs.queryparams(req[:query])
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playlistId = get(query, "playlistId", "")
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name = get(query, "name", "")
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songId = get(query, "songId", "")
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# Check required params
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isempty(songId) && return missing_parameter("songId")
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songs = Beets.songs();
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songn = findfirst(s -> s.uuid == songId, songs)
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songn === nothing && return not_found("songId")
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song = songs[songn]
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if !isempty(playlistId)
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if playlistId in keys(user_playlists)
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push!(playlist, song)
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else
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return not_found("playlistId")
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end
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elseif !isempty(name)
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playlist = Playlist(req[:login][:user].name,
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name = name # cover = ???
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)
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push!(playlist, song)
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@show "THERE"
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else
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return missing_parameter("either name or playlistId")
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end
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push!(user_playlists, playlist)
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# Return the playlist
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(xdoc, xroot) = subsonic()
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push!(xroot, playlist)
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saveplaylists()
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return subsonic_return(xdoc)
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end
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"Returns all playlists a user is allowed to play."
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function getPlaylists(req)
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global user_playlists
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# FIXME: add support for admin (ask other user's playlists, v 1.8.0)
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(xdoc, xroot) = subsonic(version = "1.0.0")
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playlistsXML = new_child(xroot, "playlists")
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for playlist in sort(filter(p -> canread(req[:login][:user], p),
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user_playlists),
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by = p -> p.name)
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push!(playlistsXML, playlist)
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end
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return subsonic_return(xdoc)
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end
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import Base.get
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function get(::Type{Playlist}, u::User, id::AbstractString)::Union{Nothing,Playlist}
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global user_playlists
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playlists = filter(p -> canread(u, p), user_playlists)
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m = findfirst(p -> p.uuid == id, playlists)
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m == nothing ? nothing : playlists[m]
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end
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"Returns a listing of files in a saved playlist."
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function getPlaylist(req)
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global user_playlists
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query = HTTP.URIs.queryparams(req[:query])
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id = get(query, "id", "")
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isempty(id) && return missing_parameter("id")
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playlist = get(Playlist, req[:login][:user], id)
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playlist == nothing && return not_found("id")
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(xdoc, xroot) = subsonic()
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append!(xroot, playlist)
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return subsonic_return(xroot)
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end
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"Updates a playlist. Only the owner of a playlist is allowed to update it."
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function updatePlaylist(req)
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global user_playlists
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query = HTTP.URIs.queryparams(req[:query])
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playlistId = get(query, "playlistId", "")
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isempty(playlistId) && return missing_parameter("playlistId")
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playlist = get(Playlist, req[:login][:user], playlistId)
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playlist == nothing && return not_found("playlistId")
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# Check ownership (if not allowed, should not even reach this (canread is false))
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canedit(req[:login][:user], playlist) || return unuthorized()
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# Want to make public. Is allowed?
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wantpublic = try
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parse(Bool,get(query, "public", string(playlist.public)))
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catch e
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isa(e, ArgumentError) ? false : @error e
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end
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if wantpublic
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canmakepublic(req[:login][:user]) || return unuthorized()
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playlist.public = true
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else
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playlist.public = false
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end
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playlist.name = get(query, "name", playlist.name)
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playlist.comment = get(query, "comment", playlist.comment)
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songIdAdd = get(query, "songIdToAdd", "")
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# WTF by the index!?
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IndexToRemove = get(query, "songIndexToRemove", "")
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songIndexToRemove = isempty(IndexToRemove) ? -1 : parse(Int,IndexToRemove) + 1
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# TODO: Support multiple (repeated) parameter
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if !isempty(songIdAdd)
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songs = Beets.songs();
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songn = findfirst(s -> s.uuid == songIdAdd, songs)
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songn === nothing && return not_found("songIdToAdd")
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song = songs[songn]
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push!(playlist, song)
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end
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# TODO: Support multiple (repeated) parameter
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if songIndexToRemove > 0 && songIndexToRemove <= length(playlist.songs)
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deleteat!(playlist.songs, songIndexToRemove)
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end
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saveplaylists()
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@subsonic(nothing)
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end
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"Deletes a saved playlist."
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function deletePlaylist(req)
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global user_playlists
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query = HTTP.URIs.queryparams(req[:query])
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id = get(query, "id", "")
|
|
isempty(id) && return missing_parameter("id")
|
|
m = findfirst(p -> p.uuid == id, user_playlists)
|
|
m === nothing && return not_found("id")
|
|
if !canedit(req[:login][:user], user_playlists[m])
|
|
return unuthorized()
|
|
end
|
|
|
|
deleteat!(user_playlists, m)
|
|
|
|
saveplaylists()
|
|
@subsonic(nothing)
|
|
end
|
|
|
|
function getUser(req)
|
|
(xdoc, xroot) = subsonic()
|
|
push!(xroot, User(req[:login][:name]))
|
|
return subsonic_return(xroot)
|
|
end
|
|
|
|
const cover_cache = Dict{String, Vector{UInt8}}()
|
|
const song_cache = Dict{Tuple{String,Int,String}, Vector{UInt8}}()
|
|
|
|
# Media retriveal
|
|
"Returns a cover art image."
|
|
function getCoverArt(req::Dict)
|
|
global cover_cache
|
|
|
|
query = HTTP.URIs.queryparams(req[:query])
|
|
|
|
id = get(query, "id", "")
|
|
isempty(id) && return missing_parameter("id")
|
|
n = findfirst(a -> a.uuid == id, Beets.albums)
|
|
|
|
(n === nothing || isempty(Beets.albums[n].cover)) && return not_found("id")
|
|
|
|
if Beets.albums[n].cover in keys(cover_cache)
|
|
data = cover_cache[Beets.albums[n].cover]
|
|
else
|
|
io = IOBuffer()
|
|
p = run(pipeline(`convert $(Beets.albums[n].cover) -resize 200x200 png:-`,
|
|
stderr=devnull, stdout=io), wait = true)
|
|
data = take!(io)
|
|
cover_cache[Beets.albums[n].cover] = data
|
|
end
|
|
|
|
headers = Dict{String,String}()
|
|
headers = Dict{String,String}()
|
|
suffix = "png"
|
|
mime = suffix in keys(Mux.mimetypes) ? Mux.mimetypes[suffix] : "application/octet-stream"
|
|
headers["Content-Type"] = mime
|
|
headers["Content-Length"] = string(length(data))
|
|
return Dict(:body => data,
|
|
:headers => headers,
|
|
:file => join([split(basename(Beets.albums[n].cover), '.')[1:end-1], ".png"],""))
|
|
end
|
|
|
|
function giveconverted(file, bitrate, format)
|
|
global song_cache
|
|
k = (file, bitrate, format)
|
|
if k in keys(song_cache)
|
|
@info "Using cached"
|
|
data = song_cache[k]
|
|
else
|
|
@info "Adding song to cache"
|
|
iodata = convert(file, bitrate = bitrate, format = format)
|
|
data = take!(iodata)
|
|
try
|
|
song_cache[k] = data
|
|
catch e
|
|
@warn e
|
|
end
|
|
end
|
|
|
|
headers = Dict{String,String}()
|
|
suffix = format
|
|
mime = suffix in keys(Mux.mimetypes) ? Mux.mimetypes[suffix] :
|
|
"application/octet-stream"
|
|
headers["Content-Type"] = mime
|
|
headers["Content-Length"] = string(length(data))
|
|
# headers["Transfer-Encoding"] = "chunked"
|
|
return Dict(:body => data,
|
|
:headers => headers,
|
|
:file => join([split(basename(file), '.')[1:end-1],
|
|
".oga"],""))
|
|
end
|
|
|
|
function convert(infile; bitrate = 64, format = "oga")
|
|
global ffmpeg_threads
|
|
io = IOBuffer()
|
|
p = run(pipeline(`ffmpeg -i $infile -y -c:a libvorbis -b:a $(bitrate)k -threads $(ffmpeg_threads) -f $format pipe:1`,
|
|
stderr=devnull, stdout=io), wait = true)
|
|
io
|
|
end
|
|
|
|
canstream(u::User) = u.stream
|
|
"Streams a given media file."
|
|
function stream(req::Dict)
|
|
@show req
|
|
|
|
query = HTTP.URIs.queryparams(req[:query])
|
|
canstream(req[:login][:user]) || return unuthorized()
|
|
|
|
id = get(query, "id", "")
|
|
isempty(id) && return missing_parameter("id")
|
|
|
|
bitrate = try parse(Int, get(query, "maxBitRate", "0"))
|
|
catch e
|
|
isa(e, ArgumentError) && 0
|
|
@error e
|
|
end
|
|
# Ogg is not compativle with lower bitrates. Use something else?
|
|
bitrate = (bitrate != 0 && bitrate < 64) ? 64 : bitrate
|
|
format = get(query, "format", "oga")
|
|
|
|
songs = Beets.songs()
|
|
m = findfirst(x -> (x.uuid == id), songs)
|
|
m === nothing && return not_found("id")
|
|
|
|
output = (bitrate == 0) ? sendfile(songs[m].path) :
|
|
giveconverted(songs[m].path, bitrate, format)
|
|
return output
|
|
end
|
|
|
|
function sendfile(path; suffix = nothing)
|
|
isfile(path) || return Dict{String,String}(:body => "Not Found")
|
|
suffix = suffix == nothing ? lowercase(split(path, '.')[end]) : suffix
|
|
headers = Dict{String,String}()
|
|
mime = suffix in keys(Mux.mimetypes) ? Mux.mimetypes[suffix] :
|
|
"application/octet-stream"
|
|
headers["Content-Type"] = mime
|
|
headers["Content-Length"] = string(filesize(path))
|
|
return Dict(:body => read(path),
|
|
:file => basename(path),
|
|
:headers => headers)
|
|
end
|
|
|
|
canread(u::User, p::Playlist) = p.public ||
|
|
(u.admin || p.owner == u.name) ||
|
|
u in p.allowed
|
|
function canedit(u::User, p::Playlist)
|
|
@show p.owner
|
|
@show u.name
|
|
@show u.admin
|
|
(p.owner == u.name) || u.admin
|
|
end
|
|
canmakepublic(u::User) = u.playlist
|