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Bug 521258 - Catch exceptions in template ChannelListener class to avoid hangs, r=jwalden

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This commit is contained in:
Jason Duell 2009-11-14 20:54:52 -08:00
parent b6bf90ea7a
commit 805435bdcf
1 changed files with 51 additions and 36 deletions
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87
netwerk/test/unit/head_channels.js
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@ -60,49 +60,64 @@ ChannelListener.prototype = {
},
onStartRequest: function(request, context) {
if (this._got_onstartrequest)
do_throw("Got second onStartRequest event!");
this._got_onstartrequest = true;
try {
if (this._got_onstartrequest)
do_throw("Got second onStartRequest event!");
this._got_onstartrequest = true;
request.QueryInterface(Components.interfaces.nsIChannel);
this._contentLen = request.contentLength;
if (this._contentLen == -1)
do_throw("Content length is unknown in onStartRequest!");
request.QueryInterface(Components.interfaces.nsIChannel);
this._contentLen = request.contentLength;
if (this._contentLen == -1)
do_throw("Content length is unknown in onStartRequest!");
} catch (ex) {
do_throw("Error in onStartRequest: " + ex);
}
},
onDataAvailable: function(request, context, stream, offset, count) {
if (!this._got_onstartrequest)
do_throw("onDataAvailable without onStartRequest event!");
if (this._got_onstoprequest)
do_throw("onDataAvailable after onStopRequest event!");
if (!request.isPending())
do_throw("request reports itself as not pending from onDataAvailable!");
if (this._flags & CL_EXPECT_FAILURE)
do_throw("Got data despite expecting a failure");
try {
if (!this._got_onstartrequest)
do_throw("onDataAvailable without onStartRequest event!");
if (this._got_onstoprequest)
do_throw("onDataAvailable after onStopRequest event!");
if (!request.isPending())
do_throw("request reports itself as not pending from onDataAvailable!");
if (this._flags & CL_EXPECT_FAILURE)
do_throw("Got data despite expecting a failure");
this._buffer = this._buffer.concat(read_stream(stream, count));
this._buffer = this._buffer.concat(read_stream(stream, count));
} catch (ex) {
do_throw("Error in onDataAvailable: " + ex);
}
},
onStopRequest: function(request, context, status) {
if (!this._got_onstartrequest)
do_throw("onStopRequest without onStartRequest event!");
if (this._got_onstoprequest)
do_throw("Got second onStopRequest event!");
this._got_onstoprequest = true;
var success = Components.isSuccessCode(status);
if ((this._flags & CL_EXPECT_FAILURE) && success)
do_throw("Should have failed to load URL (status is " + status.toString(16) + ")");
else if (!(this._flags & CL_EXPECT_FAILURE) && !success)
do_throw("Failed to load URL: " + status.toString(16));
if (status != request.status)
do_throw("request.status does not match status arg to onStopRequest!");
if (request.isPending())
do_throw("request reports itself as pending from onStopRequest!");
if (!(this._flags & CL_EXPECT_FAILURE) &&
!(this._flags & CL_EXPECT_GZIP) &&
this._contentLen != -1)
do_check_eq(this._buffer.length, this._contentLen)
this._closure(request, this._buffer, this._closurectx);
try {
if (!this._got_onstartrequest)
do_throw("onStopRequest without onStartRequest event!");
if (this._got_onstoprequest)
do_throw("Got second onStopRequest event!");
this._got_onstoprequest = true;
var success = Components.isSuccessCode(status);
if ((this._flags & CL_EXPECT_FAILURE) && success)
do_throw("Should have failed to load URL (status is " + status.toString(16) + ")");
else if (!(this._flags & CL_EXPECT_FAILURE) && !success)
do_throw("Failed to load URL: " + status.toString(16));
if (status != request.status)
do_throw("request.status does not match status arg to onStopRequest!");
if (request.isPending())
do_throw("request reports itself as pending from onStopRequest!");
if (!(this._flags & CL_EXPECT_FAILURE) &&
!(this._flags & CL_EXPECT_GZIP) &&
this._contentLen != -1)
do_check_eq(this._buffer.length, this._contentLen)
} catch (ex) {
do_throw("Error in onStopRequest: " + ex);
}
try {
this._closure(request, this._buffer, this._closurectx);
} catch (ex) {
do_throw("Error in closure function: " + ex);
}
}
};