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Clean up ffprobe error reporting 

The error messages were a bit difficult for users to understand due to a
combination of including useless technical information and lacking
userful user information.  The error messages are more verbose now and
give a better indication of what went wrong.
This commit is contained in:
calzoneman 2016-05-19 20:51:39 -07:00
parent fe37cb198e
commit b35b2a6e7e
2 changed files with 60 additions and 19 deletions
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77
src/ffmpeg.js
View File

@ -46,15 +46,41 @@ function fixRedirectIfNeeded(urldata, redirect) {
return redirect;
}
function translateStatusCode(statusCode) {
switch (statusCode) {
case 400:
return "The request for the audio/video link was rejected as invalid. " +
"Contact support for troubleshooting assistance.";
case 401:
case 403:
return "Access to the link was denied. Contact the owner of the " +
"website hosting the audio/video file to grant permission for " +
"the file to be downloaded.";
case 404:
return "The requested link could not be found (404).";
case 500:
case 503:
return "The website hosting the audio/video link encountered an error " +
"and was unable to process the request. Try again in a few minutes, " +
"and if the issue persists, contact the owner of the website hosting " +
"the link.";
default:
return "An unknown issue occurred when requesting the audio/video link. " +
"Contact support for troubleshooting assistance.";
}
}
function testUrl(url, cb, redirCount) {
if (!redirCount) redirCount = 0;
var data = urlparse.parse(url);
if (!/https?:/.test(data.protocol)) {
return cb("Video links must start with http:// or https://");
return cb("Only links starting with 'http://' or 'https://' are supported " +
"for raw audio/video support");
}
if (!data.hostname) {
return cb("Invalid link");
return cb("The link to the file is missing the website address and can't " +
"be processed.");
}
var transport = (data.protocol === "https:") ? https : http;
@ -64,29 +90,33 @@ function testUrl(url, cb, redirCount) {
if (res.statusCode === 301 || res.statusCode === 302) {
if (redirCount > 2) {
return cb("Too many redirects. Please provide a direct link to the " +
"file");
return cb("The request for the audio/video file has been redirected " +
"more than twice. This could indicate a misconfiguration " +
"on the website hosting the link. For best results, use " +
"a direct link.");
}
return testUrl(fixRedirectIfNeeded(data, res.headers["location"]), cb,
redirCount + 1);
}
if (res.statusCode !== 200) {
var message = res.statusMessage;
if (!message) message = "";
return cb("HTTP " + res.statusCode + " " + message);
return cb(translateStatusCode(res.statusCode));
}
if (!/^audio|^video/.test(res.headers["content-type"])) {
return cb("Server did not return an audio or video file, or sent the " +
"wrong Content-Type");
return cb("Expected a content-type starting with 'audio' or 'video', but " +
"got '" + res.headers["content-type"] + "'. Only direct links " +
"to video and audio files are accepted, and the website hosting " +
"the file must be configured to send the correct MIME type.");
}
cb();
});
req.on("error", function (err) {
cb(err);
cb("An unexpected error occurred while trying to process the link. " +
"Try again, and contact support for further troubleshooting if the " +
"problem continues." + (!!err.code ? (" Error code: " + err.code) : ""));
});
req.end();
@ -215,7 +245,9 @@ exports.ffprobe = function ffprobe(filename, cb) {
Logger.errlog.log("Possible runaway ffprobe process for file " + filename);
fflog("Killing ffprobe for " + filename + " after " + (TIMEOUT/1000) + " seconds");
childErr = new Error("File query exceeded time limit of " + (TIMEOUT/1000) +
" seconds");
" seconds. To avoid this issue, encode your videos " +
"using the 'faststart' option: " +
"https://trac.ffmpeg.org/wiki/Encode/H.264#faststartforwebvideo");
child.kill("SIGKILL");
}, TIMEOUT);
@ -231,7 +263,9 @@ exports.ffprobe = function ffprobe(filename, cb) {
stderr += data;
if (stderr.match(/the tls connection was non-properly terminated/i)) {
fflog("Killing ffprobe for " + filename + " due to TLS error");
childErr = new Error("Remote server closed connection unexpectedly");
childErr = new Error("The connection was closed unexpectedly. " +
"If the problem continues, contact support " +
"for troubleshooting assistance.");
child.kill("SIGKILL");
}
});
@ -281,7 +315,7 @@ exports.query = function (filename, cb) {
if (!filename.match(/^https?:\/\//)) {
return cb("Raw file playback is only supported for links accessible via HTTP " +
"or HTTPS");
"or HTTPS. Ensure that the link begins with 'http://' or 'https://'");
}
testUrl(filename, function (err) {
@ -299,10 +333,11 @@ exports.query = function (filename, cb) {
} else if (err.message) {
if (err.message.match(/protocol not found/i))
return cb("Link uses a protocol unsupported by this server's " +
"version of ffmpeg");
"version of ffmpeg. Some older versions of " +
"ffprobe/avprobe do not support HTTPS.");
if (err.message.match(/exceeded time limit/) ||
err.message.match(/remote server closed/i)) {
err.message.match(/closed unexpectedly/i)) {
return cb(err.message);
}
@ -310,11 +345,15 @@ exports.query = function (filename, cb) {
// indicate a problem with the remote file, not with this code.
if (!/(av|ff)probe/.test(String(err)))
Logger.errlog.log(err.stack || err);
return cb("Unable to query file data with ffmpeg");
return cb("An unexpected error occurred while trying to process " +
"the link. Contact support for troubleshooting " +
"assistance.");
} else {
if (!/(av|ff)probe/.test(String(err)))
Logger.errlog.log(err.stack || err);
return cb("Unable to query file data with ffmpeg");
return cb("An unexpected error occurred while trying to process " +
"the link. Contact support for troubleshooting " +
"assistance.");
}
}
@ -322,7 +361,9 @@ exports.query = function (filename, cb) {
data = reformatData(data);
} catch (e) {
Logger.errlog.log(e.stack || e);
return cb("Unable to query file data with ffmpeg");
return cb("An unexpected error occurred while trying to process " +
"the link. Contact support for troubleshooting " +
"assistance.");
}
if (data.medium === "video") {

2
www/js/util.js
View File

@ -2070,7 +2070,7 @@ function queueMessage(data, type) {
}
var newAlert = makeAlert(title, text, type)
.addClass("linewrap qfalert qf-" + type)
.appendTo($("#queuefail"));
.prependTo($("#queuefail"));
newAlert.find(".alert").data("reason", data.msg);
}