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i2psnark: Audio playlist support

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Add HTML5 player for single-file torrents
This commit is contained in:
zzz
2019-11-12 12:20:19 +00:00
parent eda91af7c7
commit e8bf2ee30d
3 changed files with 197 additions and 2 deletions
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184
apps/i2psnark/java/src/org/klomp/snark/web/I2PSnarkServlet.java
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@ -235,6 +235,18 @@ public class I2PSnarkServlet extends BasicServlet {
File resource = getResource(pathInContext);
if (resource == null) {
resp.sendError(404);
} else if (req.getParameter("playlist") != null) {
String base = addPaths(req.getRequestURI(), "/");
String listing = getPlaylist(req.getRequestURL().toString(), base, req.getParameter("sort"));
if (listing != null) {
setHTMLHeaders(resp);
// TODO custom name
resp.setContentType("audio/mpegurl; charset=UTF-8; name=\"playlist.m3u\"");
resp.addHeader("Content-Disposition", "attachment; filename=\"playlist.m3u\"");
resp.getWriter().write(listing);
} else {
resp.sendError(404);
}
} else {
String base = addPaths(req.getRequestURI(), "/");
String listing = getListHTML(resource, base, true, method.equals("POST") ? req.getParameterMap() : null,
@ -3333,6 +3345,26 @@ public class I2PSnarkServlet extends BasicServlet {
if (ls == null) {
// We are only showing the torrent info section
// unless audio or video...
if (storage != null && storage.complete()) {
String mime = getMimeType(r.getName());
boolean isAudio = mime != null && (mime.startsWith("audio/") || mime.equals("application/ogg"));
boolean isVideo = mime != null && mime.startsWith("video/");
if (isAudio || isVideo) {
// HTML5
if (isAudio)
buf.append("<audio controls>");
else
buf.append("<video controls>");
// strip trailing slash
String path = base.substring(0, base.length() - 1);
buf.append("<source src=\"").append(path).append("\" type=\"").append(mime).append("\">");
if (isAudio)
buf.append("</audio>");
else
buf.append("</video>");
}
}
if (er || ec)
displayComments(snark, er, ec, esc, buf);
if (includeForm)
@ -3356,7 +3388,7 @@ public class I2PSnarkServlet extends BasicServlet {
sort = Integer.parseInt(sortParam);
} catch (NumberFormatException nfe) {}
}
Collections.sort(fileList, Sorters.getFileComparator(sort, this));
DataHelper.sort(fileList, Sorters.getFileComparator(sort, this));
}
// second table - dir info
@ -3436,6 +3468,16 @@ public class I2PSnarkServlet extends BasicServlet {
.append(_t("Up to higher level directory"))
.append("</A></td></tr>\n");
// playlist button
if (hasCompleteAudio(fileList, storage, remainingArray)) {
buf.append("<tr><td colspan=\"" + (showPriority ? '5' : '4') + "\" class=\"ParentDir\">" +
"<a href=\"").append(base).append("?playlist");
if (sortParam != null && !"0".equals(sortParam) && !"1".equals(sortParam))
buf.append("&amp;sort=").append(sortParam);
buf.append("\">");
buf.append(toImg("music"));
buf.append(' ').append(_t("Audio Playlist")).append("</a></td></tr>\n");
}
boolean showSaveButton = false;
boolean rowEven = true;
@ -3609,6 +3651,146 @@ public class I2PSnarkServlet extends BasicServlet {
return buf.toString();
}
/**
* Is there at least one complete audio file in this directory or below?
* Recursive.
*
* @since 0.9.44
*/
private boolean hasCompleteAudio(List<Sorters.FileAndIndex> fileList,
Storage storage, long[] remainingArray) {
for (Sorters.FileAndIndex fai : fileList) {
if (fai.isDirectory) {
// recurse
File[] ls = fai.file.listFiles();
if (ls != null && ls.length > 0) {
List<Sorters.FileAndIndex> fl2 = new ArrayList<Sorters.FileAndIndex>(ls.length);
for (int i = 0; i < ls.length; i++) {
fl2.add(new Sorters.FileAndIndex(ls[i], storage, remainingArray));
}
if (hasCompleteAudio(fl2, storage, remainingArray))
return true;
}
continue;
}
if (fai.remaining != 0)
continue;
String name = fai.file.getName();
String mime = getMimeType(name);
if (mime != null && (mime.startsWith("audio/") || mime.equals("application/ogg")))
return true;
}
return false;
}
/**
* Get the audio files in the resource list as a m3u playlist.
* https://en.wikipedia.org/wiki/M3U
*
* @param base The encoded base URL
* @param sortParam may be null
* @return String of HTML or null if no files or on error
* @since 0.9.44
*/
private String getPlaylist(String reqURL, String base, String sortParam) throws IOException {
String decodedBase = decodePath(base);
String title = decodedBase;
String cpath = _contextPath + '/';
if (title.startsWith(cpath))
title = title.substring(cpath.length());
// Get the snark associated with this directory
String torrentName;
String pathInTorrent;
int slash = title.indexOf('/');
if (slash > 0) {
torrentName = title.substring(0, slash);
pathInTorrent = title.substring(slash);
} else {
torrentName = title;
pathInTorrent = "/";
}
Snark snark = _manager.getTorrentByBaseName(torrentName);
if (snark == null)
return null;
Storage storage = snark.getStorage();
if (storage == null)
return null;
File sbase = storage.getBase();
File r;
if (pathInTorrent.equals("/"))
r = sbase;
else
r = new File(sbase, pathInTorrent);
if (!r.isDirectory())
return null;
File[] ls = r.listFiles();
if (ls == null)
return null;
List<Sorters.FileAndIndex> fileList = new ArrayList<Sorters.FileAndIndex>(ls.length);
// precompute remaining for all files for efficiency
long[] remainingArray = (storage != null) ? storage.remaining() : null;
for (int i = 0; i < ls.length; i++) {
fileList.add(new Sorters.FileAndIndex(ls[i], storage, remainingArray));
}
boolean showSort = fileList.size() > 1;
int sort = 0;
if (showSort) {
if (sortParam != null) {
try {
sort = Integer.parseInt(sortParam);
} catch (NumberFormatException nfe) {}
}
DataHelper.sort(fileList, Sorters.getFileComparator(sort, this));
}
StringBuilder buf = new StringBuilder(512);
getPlaylist(buf, fileList, reqURL, sort, storage, remainingArray);
String rv = buf.toString();
if (rv.length() <= 0)
return null;
return rv;
}
/**
* Append playlist entries in m3u format to buf.
* Recursive.
*
* @param buf out parameter
* @param reqURL encoded, WITH trailing slash
* @since 0.9.44
*/
private void getPlaylist(StringBuilder buf, List<Sorters.FileAndIndex> fileList,
String reqURL, int sort,
Storage storage, long[] remainingArray) {
for (Sorters.FileAndIndex fai : fileList) {
if (fai.isDirectory) {
// recurse
File[] ls = fai.file.listFiles();
if (ls != null && ls.length > 0) {
List<Sorters.FileAndIndex> fl2 = new ArrayList<Sorters.FileAndIndex>(ls.length);
for (int i = 0; i < ls.length; i++) {
fl2.add(new Sorters.FileAndIndex(ls[i], storage, remainingArray));
}
if (ls.length > 1)
DataHelper.sort(fl2, Sorters.getFileComparator(sort, this));
String name = fai.file.getName();
String url2 = reqURL + encodePath(name) + '/';
getPlaylist(buf, fl2, url2, sort, storage, remainingArray);
}
continue;
}
if (fai.remaining != 0)
continue;
String name = fai.file.getName();
String mime = getMimeType(name);
if (mime != null && (mime.startsWith("audio/") || mime.equals("application/ogg"))) {
// TODO Extended M3U
buf.append(reqURL).append(encodePath(name)).append('\n');
}
}
}
/**
* @param er ratings enabled globally
* @param ec comments enabled globally