1 files changed, 169 insertions, 0 deletions
diff --git a/server/opensubtitles.lua b/server/opensubtitles.lua
new file mode 100644
index 0000000..9a5def4
--- /dev/null
+++ b/server/opensubtitles.lua
@@ -0,0 +1,169 @@
+#!/usr/bin/env lua
+
+local curl = require 'lib/curl'
+local util = require 'lib/util'
+
+-- [[ languages supported by opensubtitles ]] --
+local languages = {
+	['english'] = 'eng',
+	['abkhazian'] = 'abk',
+	['afrikaans'] = 'afr',
+	['albanian'] = 'alb',
+	['arabic'] = 'ara',
+	['aragonese'] = 'arg',
+	['armenian'] = 'arm',
+	['assamese'] = 'asm',
+	['asturian'] = 'ast',
+	['azerbaijani'] = 'aze',
+	['basque'] = 'baq',
+	['belarusian'] = 'bel',
+	['bengali'] = 'ben',
+	['bosnian'] = 'bos',
+	['breton'] = 'bre',
+	['bulgarian'] = 'bul',
+	['burmese'] = 'bur',
+	['catalan'] = 'cat',
+	['chinese (simplified)'] = 'chi',
+	['chinese (traditional)'] = 'zht',
+	['chinese bilingual'] = 'zhe',
+	['croatian'] = 'hrv',
+	['czech'] = 'cze',
+	['danish'] = 'dan',
+	['dari'] = 'prs',
+	['dutch'] = 'dut',
+	['esperanto'] = 'epo',
+	['estonian'] = 'est',
+	['extremaduran'] = 'ext',
+	['finnish'] = 'fin',
+	['french'] = 'fre',
+	['gaelic'] = 'gla',
+	['galician'] = 'glg',
+	['georgian'] = 'geo',
+	['german'] = 'ger',
+	['greek'] = 'ell',
+	['hebrew'] = 'heb',
+	['hindi'] = 'hin',
+	['hungarian'] = 'hun',
+	['icelandic'] = 'ice',
+	['igbo'] = 'ibo',
+	['indonesian'] = 'ind',
+	['interlingua'] = 'ina',
+	['irish'] = 'gle',
+	['italian'] = 'ita',
+	['japanese'] = 'jpn',
+	['kannada'] = 'kan',
+	['kazakh'] = 'kaz',
+	['khmer'] = 'khm',
+	['korean'] = 'kor',
+	['kurdish'] = 'kur',
+	['latvian'] = 'lav',
+	['lithuanian'] = 'lit',
+	['luxembourgish'] = 'ltz',
+	['macedonian'] = 'mac',
+	['malay'] = 'may',
+	['malayalam'] = 'mal',
+	['manipuri'] = 'mni',
+	['marathi'] = 'mar',
+	['mongolian'] = 'mon',
+	['montenegrin'] = 'mne',
+	['navajo'] = 'nav',
+	['nepali'] = 'nep',
+	['northern sami'] = 'sme',
+	['norwegian'] = 'nor',
+	['occitan'] = 'oci',
+	['odia'] = 'ori',
+	['persian'] = 'per',
+	['polish'] = 'pol',
+	['portuguese'] = 'por',
+	['portuguese (br)'] = 'pob',
+	['portuguese (mz)'] = 'pom',
+	['pushto'] = 'pus',
+	['romanian'] = 'rum',
+	['russian'] = 'rus',
+	['santali'] = 'sat',
+	['serbian'] = 'scc',
+	['sindhi'] = 'snd',
+	['sinhalese'] = 'sin',
+	['slovak'] = 'slo',
+	['slovenian'] = 'slv',
+	['somali'] = 'som',
+	['spanish'] = 'spa',
+	['spanish (eu)'] = 'spn',
+	['spanish (la)'] = 'spl',
+	['swahili'] = 'swa',
+	['swedish'] = 'swe',
+	['syriac'] = 'syr',
+	['tagalog'] = 'tgl',
+	['tamil'] = 'tam',
+	['tatar'] = 'tat',
+	['telugu'] = 'tel',
+	['thai'] = 'tha',
+	['toki pona'] = 'tok',
+	['turkish'] = 'tur',
+	['turkmen'] = 'tuk',
+	['ukrainian'] = 'ukr',
+	['urdu'] = 'urd',
+	['uzbek'] = 'uzb',
+	['vietnamese'] = 'vie',
+	['welsh'] = 'wel',
+}
+
+
+local language = 'english'
+local domain = 'https://www.opensubtitles.org'
+local retries = 10
+
+local search_ohash = function (ohash)
+	local fetch, tries, hcode, url, id
+
+	url = domain .. '/en' .. '/search/sublanguageid-' ..
+	      languages[language] .. '/moviehash-' .. ohash
+	tries = 0
+	repeat
+		fetch, hcode = curl.get(url, nil, nil)
+		tries = tries + 1
+	until hcode == 200 or tries > retries
+
+	id = fetch:match('/en/subtitleserve/sub/[^\n]*\n[^\n]*iduser%-0')
+	if id then
+		id = id:match('/en/subtitleserve/sub/%d*')
+	end
+
+	if id then
+		return domain .. id
+	end
+end
+
+local sub_fetch = function(link, out)
+	local tries, hcode, zip, zcode
+
+	tries = 0
+	zip = os.tmpname()
+
+	repeat
+		_, hcode = curl.get(link, nil, '-o ' .. zip)
+		tries = tries + 1
+	until hcode == 200 or tries > retries
+
+	if hcode == 200 then
+		zcode = util.zip_ext_first(zip, out)
+	end
+	os.remove(zip)
+
+	return (hcode == 200) and zcode
+end
+
+local search = function (path, out)
+	local ohash, link
+
+	ohash = util.opensubtitles_hash(path)
+	link = search_ohash(ohash)
+	if link then
+		return sub_fetch(link, out)
+	end
+end
+
+return {
+	search_ohash = search_ohash,
+	search = search
+}