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When the libxml2 parser is fed data with an odd combination of invalid
input (triggering the parser to assume 2 or 4 byte encodings were in
play), I/O errors might occur. In that case, the parser context will
not have its internal error set, but the call to xmlParseChunk will
return the right error. The parse() method now uses the output of
xmlParseChunk directly instead of trying to obtain the error from the
parser context afterwards.
Encoding errors during parsing were emitted to stderr because the
default error handlers were still in place. These have been replaced
with custom handlers that suppress the output.
Test-Information:
Unit tests pass on Debian 9
Change-Id: Ie01db4be467e5197203c9d07d3356f5d44d8b9b4
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Test-information:
Unit tests pass on Windows 10 and Ubuntu 18.04.1 LTS.
Change-Id: Icea837d91f28f47f7b0a90bc620b26c5567c8421
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XML (Expat/LibXML) parsing modified to process prefix information.
Prefixes for attributes stored within attributes.
Prefixes for elements passed in additional callback
(only if prefix present).
Test-information:
Unit tests pass on Windows 10 and Ubuntu 18.04.1 LTS.
Change-Id: Ib6b5087feed758c31895f426df6a3c7ea975f248
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According to RFC 6120 if any disallowed XML feature is encountered,
we should close the stream with a <restricted-xml/>. The following
features of XML are prohibited in XMPP:
- processing instructions
- internal or external DTD subsets
- internal or external entity references
- comments
Test-information:
Unit tests pass on Windows 10 and Ubuntu 18.04.1 LTS
Change-Id: I475920c91b7f9da51ab37c106a4783a52f6e3cae
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Prior to calling handleStartElement, the ParserClient
handleNamespaceDeclaration will fire for each namespace declared on the
element.
Test-Information:
Unit tests pass on Debian 9 for both expat and libxml2
Change-Id: Ic42e83aee83edfbb2aa5c971997808eb6e133223
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XML parse now takes an optional boolean that will signal that with the
data that is fed into the parser, the document should now be complete.
This will allow the parser to reject partial documents.
Test-Information:
Updated unit tests pass.
Checked that default behaviour wasn't changed.
Tested with various partial and complete documents.
Change-Id: Ide7c2e47c49d5667f1febcb23da366e96d0dbc21
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Removed trailing spaces and whitespace on empty lines
in the process.
Changed CheckTabs.py tool to disallow hard tabs in source
files.
Test-Information:
Manually checked 30 random files that the conversion worked
as expected.
Change-Id: I874f99d617bd3d2bb55f02d58f22f58f9b094480
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Change-Id: I94ab4bbb68c603fe872abeb8090575de042f5cb4
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This works around a problem with broken servers relaying illegal
stanzas from broken clients. Obviously only works when using the
bundled Expat.
Note that the system OS X libXML also seems to behave this way.
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* swift-1.x:
Added fix for a billion laughs attack on Expat.
Conflicts:
Swiften/Parser/LibXMLParser.cpp
Swiften/Parser/UnitTest/XMLParserTest.cpp
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Resolves: #492
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Swift