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up2k-hook-ytid: add mp4/webm/mkv metadata scanner
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@ -2,29 +2,140 @@
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// assumes all files dropped into the uploader have a youtube-id somewhere in the filename,
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// locates the youtube-ids and passes them to an API which returns a list of IDs which should be uploaded
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//
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// also tries to find the youtube-id in the embedded metadata
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//
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// assumes copyparty is behind nginx as /ytq is a standalone service which must be rproxied in place
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function up2k_namefilter(good_files, nil_files, bad_files, hooks) {
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var filenames = [],
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file_lists = [good_files, nil_files, bad_files];
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var passthru = up2k.uc.fsearch;
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if (passthru)
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return hooks[0](good_files, nil_files, bad_files, hooks.slice(1));
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for (var lst of file_lists)
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for (var ent of lst)
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filenames.push(ent[1]);
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a_up2k_namefilter(good_files, nil_files, bad_files, hooks).then(() => { });
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}
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function bstrpos(buf, ptn) {
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var ofs = 0,
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ch0 = ptn[0],
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sz = buf.byteLength;
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var yt_ids = new Set();
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for (var lst of file_lists)
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for (var ent of lst) {
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var m, name = ent[1];
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while (true) {
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ofs = buf.indexOf(ch0, ofs);
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if (ofs < 0 || ofs >= sz)
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return -1;
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for (var a = 1; a < ptn.length; a++)
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if (buf[ofs + a] !== ptn[a])
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break;
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if (a === ptn.length)
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return ofs;
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++ofs;
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}
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}
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async function a_up2k_namefilter(good_files, nil_files, bad_files, hooks) {
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var t0 = Date.now(),
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yt_ids = new Set(),
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textdec = new TextDecoder('latin1'),
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md_ptn = new TextEncoder().encode('youtube.com/watch?v='),
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file_ids = [], // all IDs found for each good_files
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mofs = 0,
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mnchk = 0,
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mfile = '';
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for (var a = 0; a < good_files.length; a++) {
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var [fobj, name] = good_files[a],
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sz = fobj.size,
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ids = [],
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id_ok = false,
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m;
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// all IDs found in this file
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file_ids.push(ids);
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// look for ID in filename; reduce the
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// metadata-scan intensity if the id looks safe
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m = /[\[(-]([\w-]{11})[\])]?\.(?:mp4|webm|mkv)$/i.exec(name);
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id_ok = !!m;
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while (true) {
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// fuzzy catch-all;
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// some ytdl fork did %(title)-%(id).%(ext) ...
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m = /(?:^|[^\w])([\w-]{11})(?:$|[^\w-])/.exec(name);
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if (!m)
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break;
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yt_ids.add(m[1]);
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name = name.replace(m[1], '');
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yt_ids.add(m[1]);
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ids.push(m[1]);
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}
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// look for IDs in video metadata,
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if (/\.(mp4|webm|mkv)$/i.exec(name)) {
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toast.show('inf r', 0, `analyzing file ${a + 1} / ${good_files.length} :\n${name}\n\nhave analysed ${++mnchk} files in ${(Date.now() - t0) / 1000} seconds, ${humantime((good_files.length - (a + 1)) * (((Date.now() - t0) / 1000) / mnchk))} remaining,\n\nbiggest offset so far is ${mofs}, in this file:\n\n${mfile}`);
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// check first and last 128 MiB;
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// pWxOroN5WCo.mkv @ 6edb98 (6.92M)
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// Nf-nN1wF5Xo.mp4 @ 4a98034 (74.6M)
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var chunksz = 1024 * 1024 * 2, // byte
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aspan = id_ok ? 128 : 512; // MiB
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aspan = parseInt(Math.min(sz / 2, aspan * 1024 * 1024) / chunksz) * chunksz;
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for (var side = 0; side < 2; side++) {
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var ofs = side ? Math.max(0, sz - aspan) : 0,
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nchunks = aspan / chunksz;
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for (var chunk = 0; chunk < nchunks; chunk++) {
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var bchunk = await fobj.slice(ofs, ofs + chunksz + 16).arrayBuffer(),
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uchunk = new Uint8Array(bchunk, 0, bchunk.byteLength),
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bofs = bstrpos(uchunk, md_ptn),
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absofs = Math.min(ofs + bofs, (sz - ofs) + bofs),
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txt = bofs < 0 ? '' : textdec.decode(uchunk.subarray(bofs)),
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m;
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//console.log(`side ${ side }, chunk ${ chunk }, ofs ${ ofs }, bchunk ${ bchunk.byteLength }, txt ${ txt.length }`);
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while (true) {
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// mkv/webm have [a-z] immediately after url
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m = /(youtube\.com\/watch\?v=[\w-]{11})/.exec(txt);
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if (!m)
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break;
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txt = txt.replace(m[1], '');
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m = m[1].slice(-11);
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console.log(`found ${m} @${bofs}, ${name} `);
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yt_ids.add(m);
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if (!has(ids, m))
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ids.push(m);
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// bail after next iteration
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chunk = nchunks - 1;
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side = 9;
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if (mofs < absofs) {
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mofs = absofs;
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mfile = name;
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}
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}
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ofs += chunksz;
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if (ofs >= sz)
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break;
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}
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}
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}
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}
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if (false) {
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var msg = `finished analysing ${mnchk} files in ${(Date.now() - t0) / 1000} seconds,\n\nbiggest offset was ${mofs} in this file:\n\n${mfile}`,
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mfun = function () { toast.ok(0, msg); };
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mfun();
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setTimeout(mfun, 200);
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return hooks[0]([], [], [], hooks.slice(1));
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}
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toast.inf(5, `running query for ${yt_ids.size} videos...`);
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@ -36,46 +147,63 @@ function up2k_namefilter(good_files, nil_files, bad_files, hooks) {
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if (this.status != 200)
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return toast.err(0, `sorry, database query failed; _; \n\nplease let us know so we can look at it, thx!!\n\nerror ${this.status}: ${(this.response && this.response.err) || this.responseText} `);
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var new_lists = [],
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ptn = new RegExp(this.responseText.trim().split('\n').join('|') || '\n'),
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nothing_to_do = true,
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n_skip = 0;
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process_id_list(this.responseText);
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};
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xhr.send(Array.from(yt_ids).join('\n'));
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for (var lst of file_lists) {
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var keep = [];
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new_lists.push(keep);
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setTimeout(function () { process_id_list('Nf-nN1wF5Xo\n'); }, 500);
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for (var ent of lst)
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if (ptn.exec(ent[1]))
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keep.push(ent);
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else
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n_skip++;
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function process_id_list(txt) {
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var wanted_ids = new Set(txt.trim().split('\n')),
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wanted_names = new Set(), // basenames with a wanted ID
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wanted_files = new Set(); // filedrops
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if (keep.length)
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nothing_to_do = false;
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for (var a = 0; a < good_files.length; a++) {
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var name = good_files[a][1];
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for (var b = 0; b < file_ids[a].length; b++)
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if (wanted_ids.has(file_ids[a][b])) {
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wanted_files.add(good_files[a]);
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var m = /(.*)\.(mp4|webm|mkv)$/i.exec(name);
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if (m)
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wanted_names.add(m[1]);
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break;
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}
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}
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// add all files with the same basename as each explicitly wanted file
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// (infojson/chatlog/etc when ID was discovered from metadata)
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for (var a = 0; a < good_files.length; a++) {
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var name = good_files[a][1];
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for (var b = 0; b < 3; b++) {
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name = name.replace(/\.[^\.]+$/, '');
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if (wanted_names.has(name)) {
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wanted_files.add(good_files[a]);
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break;
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}
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}
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}
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function upload_filtered() {
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if (nothing_to_do)
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if (!wanted_files.size)
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return modal.alert('Good news -- turns out we already have all those.\n\nBut thank you for checking in!');
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[good_files, nil_files, bad_files] = new_lists;
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hooks[0](good_files, nil_files, bad_files, hooks.slice(1));
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hooks[0](Array.from(wanted_files), nil_files, bad_files, hooks.slice(1));
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}
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function upload_all() {
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hooks[0](good_files, nil_files, bad_files, hooks.slice(1));
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}
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var msg = `you added ${good_files.length} files; ${n_skip} of them were skipped --\neither because we already have them,\nor because there is no youtube-ID in your filename.\n\n<code>OK</code> / <code>Enter</code> = continue uploading the ${new_lists[0].length} files we definitely need\n\n<code>Cancel</code> / <code>ESC</code> = override the filter; upload ALL the files you added`;
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var n_skip = good_files.length - wanted_files.size,
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msg = `you added ${good_files.length} files; ${n_skip} of them were skipped --\neither because we already have them,\nor because there is no youtube-ID in your filename.\n\n<code>OK</code> / <code>Enter</code> = continue uploading just the ${wanted_files.size} files we definitely need\n\n<code>Cancel</code> / <code>ESC</code> = override the filter; upload ALL the files you added`;
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if (!n_skip)
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upload_filtered();
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else
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modal.confirm(msg, upload_filtered, upload_all);
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};
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xhr.send(Array.from(yt_ids).join('\n'));
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}
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up2k_hooks.push(function () {
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@ -132,7 +132,7 @@ class Up2k(object):
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self.mem_cur = None
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self.sqlite_ver = None
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self.no_expr_idx = False
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self.timeout = int(max(self.args.srch_time, 5) * 1.2)
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self.timeout = int(max(self.args.srch_time, 5) * 1.2) + 1
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self.spools: set[tempfile.SpooledTemporaryFile[bytes]] = set()
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if HAVE_SQLITE3:
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# mojibake detector
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@ -1178,6 +1178,7 @@ class Up2k(object):
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params: tuple[Any, ...],
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flt: int,
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) -> tuple[tempfile.SpooledTemporaryFile[bytes], int]:
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"""mutex me"""
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n = 0
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c2 = cur.connection.cursor()
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tf = tempfile.SpooledTemporaryFile(1024 * 1024 * 8, "w+b", prefix="cpp-tq-")
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