Fix #51903: simplexml_load_file() doesn't use HTTP headers
The `encoding` attribute of the XML declaration is optional; it is good
practice to use external encoding information where available if it is
missing. Thus, we check for `charset` info of `Content-Type` headers,
and see whether the encoding is supported.
We cater to trailing parameters and quoted-strings, but not to escaped
backslashes and quotes in quoted-strings, since no known character
encoding contains these anyway.
Co-authored-by: Michael Wallner <mike@php.net>
Closes GH-6747.
Fix #78719: http wrapper silently ignores long Location headers
When opening HTTP streams, and reading the headers, we currently
discard header lines longer than `HTTP_HEADER_BLOCK_SIZE` (1024 bytes).
While this is not generally forbidden by RFC 7230, section 3.2.5, it
is not generally allowed either, since that may change the "message
framing or response semantics".
We thus fix this by allowing arbitrarily long header lines.
Fix #80751: Comma in recipient name breaks email delivery
So far, `SendText()` simply separates potential email address lists at
any comma, disregarding that commas inside a quoted-string do not
delimit addresses. We fix that by introducing an own variant of
`strtok_r()` which caters to quoted-strings.
We also make `FormatEmailAddress()` aware of quoted strings.
We do not cater to email address comments, and potentially other quirks
of RFC 5322 email addresses, but catering to quoted-strings is supposed
to solve almost all practical use cases.
The lack of such a check leads to false-passes of tests on Windows
which expect no output, but produce a segfault or similar issue. I
discovered this a while ago due to bad tests in an extension I maintain.
Dylan K. Taylor [Mon, 22 Feb 2021 23:56:11 +0000 (23:56 +0000)]
run-tests: fixed exit code not being set on BORKED tests
When no test paths are specified this shows up when 'make test' is used on a PECL extension without specifying tests to run (or in php-src too, I guess...)
Fix #75776: Flushing streams with compression filter is broken
First, the `bzip2.compress` filter has the same issue as `zlib.deflate`
so we port the respective fix[1] to ext/bz2.
Second, there is still an issue, if a stream with an attached
compression filter is flushed before it is closed, without any writes
in between. In that case, the compression is never finalized. We fix
this by enforcing a `_php_stream_flush()` with the `closing` flag set
in `_php_stream_free()`, whenever a write filter is attached. This
call is superfluous for most write filters, but does not hurt, even
when it is unnecessary.
Since we do no longer URL decode cookie names[1], we must not URL
encode the session name. We need to prevent broken Set-Cookie headers,
by rejecting names which contain invalid characters.
Nikita Popov [Mon, 22 Feb 2021 08:33:23 +0000 (09:33 +0100)]
Fixed bug #80781
zend_find_array_dim_slow() may throw, make sure to handle this.
This backports the code we already use for this on PHP-8.0,
and also backports an exception check that makes this easier to
catch.
Dylan T [Tue, 16 Feb 2021 18:40:26 +0000 (18:40 +0000)]
Remove generated zend_jit_x86.c on `make clean`
Not removing this causes build failure when reconfiguring and rebuilding after a `make clean`, e.g. enabling/disabling ZTS.
This makes https://bugs.php.net/bug.php?id=80561 more bearable. Ideally it would be rebuilt automatically on configuration change if necessary, but I have no idea how to implement this.
Nikita Popov [Tue, 16 Feb 2021 14:26:31 +0000 (15:26 +0100)]
Handle incomplete result set metadata more gracefully
Rather than segfaulting because sname is missing lateron, report
a FAIL here. As this indicates a server bug, the errors is reported
as an out of band warning, rather than a client error.
Nikita Popov [Tue, 16 Feb 2021 13:20:45 +0000 (14:20 +0100)]
Mark resource-like objects as non-comparable
As these hold on to some internal resource, there can't be two
"equal" objects with different identity. Make sure the lack of
public properties doesn't result in these being treated as always
equal.
Nikita Popov [Mon, 15 Feb 2021 14:54:49 +0000 (15:54 +0100)]
Suppress OpenSSL error on missing optional config
openssl_pkey_new() fetches various options from the config file --
most of these are optional, and not specifying them is not an error
condition from the perspective of the user. Unfortunately, the
CONF_get_string() API pushes an error when accessing a key that
doesn't exist (_CONF_get_string does not, but that is presumably a
private API). This commit adds a helper php_openssl_conf_get_string()
that automatically clears the error in this case. I've found that
OpenSSL occasionally does the same thing internally:
https://github.com/openssl/openssl/blob/22040fb790c854cefb04bed98ed38ea6357daf83/apps/req.c#L515-L517
libcurl 7.75.0 finally adds support for `gophers://`, i.e. gopher over
TLS. The protocol is neither standardized, nor is the protocol
registered with IANA, but well, it is there and the test case should
cater to that.
Nikita Popov [Mon, 15 Feb 2021 13:52:38 +0000 (14:52 +0100)]
Fix symtable cache being used while cleaning symtable
We need to first clean the symtable and then check whether a cache
slot is available for it. Otherwise, it may happen that a destructor
runs while cleaning the table and uses up all the remaining slots
in the cache.
This is particularly insidious because once we overflow the cache,
the first pointer we modify is symtable_cache_ptr, making it hard
to understand what happened after the fact.