In the current code there are 3 main issues:
1. nsFileStream is not really thread-safe. There is nothing to protect the
internal members and we see crashes.
2. nsPipeInputStream doesn't implement ::Seek() method and that caused issues
in devtools when a nsHttpChannel sends POST data using a pipe. In order to fix
this, bug 1494176 added a check in nsHttpChannel: if the stream doesn't
implement ::Seek(), let's clone it. This was an hack around nsPipeInputStream,
and it's bad.
3. When nsHttpChannel sends POST data using a file stream, nsFileStream does
I/O on main-thread because of the issue 2. Plus, ::Seek() is called on the
main-thread causing issue 1.
Note that nsPipeInputStream implements only ::Tell(), of the nsISeekableStream
methods. It doesn't implement ::Seek() and it doesn't implement ::SetEOF().
With this patch I want to fix point 2 and point 3 (and consequentially issue 1
- but we need a separate fix for it - follow up). The patch does:
1. it splits nsISeekableStream in 2 interfaces: nsITellableStream and
nsISeekableStream.
2. nsPipeInputStream implements only nsITellableStream. Doing this, we don't
need the ::Seek() check for point 2 in nsHttpChannel: a simple QI check is
enough.
3. Because we don't call ::Seek() in nsHttpChannel, nsFileStream doesn't do I/O
on the main-thread, and we don't crash doing so.
The sandbox blocks GetTempFileName's prior response, causing the system to end up searching a number of (inaccessible) folders to use as a replacement for the temp folder. This patch provides a path to a new folder on the command line for the plugin process. This new temp folder, specific to this plugin process instance, is then communicated to the system via the TEMP/TMP environment variables. This is similar to what is done for the content process but avoids nsDirectoryService, which doesn't exist in plugin processes.
Differential Revision: https://phabricator.services.mozilla.com/D7532
--HG--
extra : moz-landing-system : lando
The sandbox blocks GetTempFileName's prior response, causing the system to end up searching a number of (inaccessible) folders to use as a replacement for the temp folder. This patch provides a path to a new folder on the command line for the plugin process. This new temp folder, specific to this plugin process instance, is then communicated to the system via the TEMP/TMP environment variables. This is similar to what is done for the content process but avoids nsDirectoryService, which doesn't exist in plugin processes.
Differential Revision: https://phabricator.services.mozilla.com/D7532
--HG--
extra : moz-landing-system : lando
The sandbox blocks GetTempFileName's prior response, causing the system to end up searching a number of (inaccessible) folders to use as a replacement for the temp folder. This patch provides a path to a new folder on the command line for the plugin process. This new temp folder, specific to this plugin process instance, is then communicated to the system via the TEMP/TMP environment variables. This is similar to what is done for the content process but avoids nsDirectoryService, which doesn't exist in plugin processes.
Differential Revision: https://phabricator.services.mozilla.com/D7532
--HG--
extra : moz-landing-system : lando
This removes the rarely used and somewhat odd
`iterator& BeginWriting/EndWriting(iterator&)` functions that take an iterator
as an in/out param and then return it.
--HG--
extra : rebase_source : 92066f996595e9b7df9642813c08592cee47c630
This switches over the few remaining usages of the deprecated
BeginWriting/EndWriting(iterator&) functions to the more standard
BeginWriting/EndWriting() functions.
--HG--
extra : rebase_source : 3c54621d4921eb45157ec4edce0b693bdd7f02d5
Also rewrote some code around the actual problem to be more obviously correct
and comprehensible.
MozReview-Commit-ID: FF2hSjQ4U1x
Differential Revision: https://phabricator.services.mozilla.com/D5154
--HG--
extra : moz-landing-system : lando
There are surprisingly many of them.
(Plus a couple of unnecessary checks after `new` calls that were nearby.)
--HG--
extra : rebase_source : 47b6d5d7c5c99b1b50b396daf7a3b67abfd74fc1
This allows JS callers to automatically get the correct types during
interation, without having to explicitly specify them.
Differential Revision: https://phabricator.services.mozilla.com/D3728
--HG--
extra : rebase_source : b708f382d8ea571d199c669bfed5b5a7ca9ffac4
extra : histedit_source : 7df6feb82088c8a5ca45dc28fe4d2b852c177fee
This patch adds simple stubs to convert between the nsISimpleEnumerator
iteration protocol and the JS iteration protocol.
Each iterable object is required to have an @@iterator method which returns an
object implementing the iterator protocol. The later objects, by convention,
also have such a method which returns the object itself.
This patch adds both a @@iterator() and entries() methods to
nsISimpleEnumerator. The former returns an iterator which returns plain
nsISupports objects. The latter accepts an IID and queries each element to
that IID before returning it. If any element fails to query, the error is
propagated to the caller.
Differential Revision: https://phabricator.services.mozilla.com/D3727
--HG--
extra : rebase_source : 340eb43a1c5e6d7ae69fa8ee486d66d31d079b14
extra : histedit_source : f3efc6c265851a563968ee410e4626e0540f55c0
The nsISimpleEnumerator contract specifies that GetNext() returns
NS_ERROR_FAILURE when iteration is complete. Several implementations, however,
either return NS_OK and a null result, or return some other error code, when
iteration is complete.
Since my initial implementation of the JS iteration stubs rely on the
contract-defined behavior of GetNext(), these need to be fixed before it can
land.
Differential Revision: https://phabricator.services.mozilla.com/D3726
--HG--
extra : rebase_source : aab0395df52e18ccff5b0a2489a983013bf484b1
extra : histedit_source : a5644f0a88799b4463af9dd01dfec33b373b1f58
In order to allow JS callers to use nsISimpleEnumerator instances with the JS
iteration protocol, we'll need to additional methods to every instance. Since
we currently have a large number of unrelated implementations, it would be
best if they could share the same implementation for the JS portion of the
protocol.
This patch adds a stub nsSimpleEnumerator base class, and updates all existing
implementations to inherit from it. A follow-up will add a new base interface
to this class, and implement the additional functionality required for JS
iteration.
Differential Revision: https://phabricator.services.mozilla.com/D3725
--HG--
extra : rebase_source : ad66d7b266856d5a750c772e4710679fab9434b1
extra : histedit_source : a83ebffbf2f0b191ba7de9007f73def6b9a955b8
Much like the component manager, many of the strings that we use for category
manager entries are statically allocated. There's no need to duplicate these
strings.
This patch changes the category manager APIs to take nsACStrings rather than
raw pointers, and to pass literal nsCStrings when we know we have a literal
string to begin with. When adding the category entry, it then skips making
copies of any strings with the LITERAL flag.
MozReview-Commit-ID: EJEcYSdNMWs
***
amend-catman
--HG--
extra : source : aa9a8f18e98f930a3d8359565eef02f3f6efc5f9
extra : absorb_source : 81a22ab26ee8017ac43321ff2c987d8096182d37
Much like the component manager, many of the strings that we use for category
manager entries are statically allocated. There's no need to duplicate these
strings.
This patch changes the category manager APIs to take nsACStrings rather than
raw pointers, and to pass literal nsCStrings when we know we have a literal
string to begin with. When adding the category entry, it then skips making
copies of any strings with the LITERAL flag.
MozReview-Commit-ID: EJEcYSdNMWs
***
amend-catman
--HG--
extra : rebase_source : 4f70e7b296ecf3b52a4892c92155c7c163d424d2
This patch is an automatic replacement of s/NS_NOTREACHED/MOZ_ASSERT_UNREACHABLE/. Reindenting long lines and whitespace fixups follow in patch 6b.
MozReview-Commit-ID: 5UQVHElSpCr
--HG--
extra : rebase_source : 4c1b2fc32b269342f07639266b64941e2270e9c4
extra : source : 907543f6eae716f23a6de52b1ffb1c82908d158a
This change makes nsEscape::T_EscapeURL not escape spaces when passed esc_OnlyNonASCII.
This fixes a web-compat issue for URLs such as "javascript: alert('hello');" and the fact that data: URIs with spaces around MIME type are rejected.
MozReview-Commit-ID: 91Qw9foW6Y3
--HG--
extra : rebase_source : 2da1b5f305ca2abcce2f9988cd6a5cbc12635c61