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Use Meson summary() function.
2021-07-27, Elliott Sales de Andrade
cb640ea0f315
Use Meson summary() function.
Now that we require at least 0.52, we can use Meson's builtin summary printing to display the results of configuration.
Testing Done:
Configured with defaults, and with pixmaps disabled to trigger the warning: https://asciinema.org/a/mV2oxOoVCJNdmrPwgqqUJ3mkU?t=17
Reviewed at https://reviews.imfreedom.org/r/848/
/*
* purple - Jabber XML parser stuff
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
*/
#include
<glib/gi18n-lib.h>
#include
<libxml/parser.h>
#include
<purple.h>
#include
"jabber.h"
#include
"parser.h"
static
void
jabber_parser_element_start_libxml
(
void
*
user_data
,
const
xmlChar
*
element_name
,
const
xmlChar
*
prefix
,
const
xmlChar
*
namespace
,
int
nb_namespaces
,
const
xmlChar
**
namespaces
,
int
nb_attributes
,
int
nb_defaulted
,
const
xmlChar
**
attributes
)
{
JabberStream
*
js
=
user_data
;
PurpleXmlNode
*
node
;
int
i
,
j
;
if
(
!
element_name
)
{
return
;
}
else
if
(
js
->
stream_id
==
NULL
)
{
/* Sanity checking! */
if
(
0
!=
xmlStrcmp
(
element_name
,
(
xmlChar
*
)
"stream"
)
||
0
!=
xmlStrcmp
(
namespace
,
(
xmlChar
*
)
NS_XMPP_STREAMS
))
{
/* We were expecting a <stream:stream/> opening stanza, but
* didn't get it. Bad!
*/
purple_debug_error
(
"jabber"
,
"Expecting stream header, got %s with "
"xmlns %s
\n
"
,
element_name
,
namespace
);
purple_connection_error
(
js
->
gc
,
PURPLE_CONNECTION_ERROR_AUTHENTICATION_IMPOSSIBLE
,
_
(
"XMPP stream header missing"
));
return
;
}
js
->
protocol_version
.
major
=
0
;
js
->
protocol_version
.
minor
=
9
;
for
(
i
=
0
;
i
<
nb_attributes
*
5
;
i
+=
5
)
{
int
attrib_len
=
attributes
[
i
+
4
]
-
attributes
[
i
+
3
];
char
*
attrib
=
g_strndup
((
gchar
*
)
attributes
[
i
+
3
],
attrib_len
);
if
(
!
xmlStrcmp
(
attributes
[
i
],
(
xmlChar
*
)
"version"
))
{
const
char
*
dot
=
strchr
(
attrib
,
'.'
);
js
->
protocol_version
.
major
=
atoi
(
attrib
);
js
->
protocol_version
.
minor
=
dot
?
atoi
(
dot
+
1
)
:
0
;
if
(
js
->
protocol_version
.
major
>
1
)
{
/* TODO: Send <unsupported-version/> error */
purple_connection_error
(
js
->
gc
,
PURPLE_CONNECTION_ERROR_AUTHENTICATION_IMPOSSIBLE
,
_
(
"XMPP Version Mismatch"
));
g_free
(
attrib
);
return
;
}
if
(
js
->
protocol_version
.
major
==
0
&&
js
->
protocol_version
.
minor
!=
9
)
{
purple_debug_warning
(
"jabber"
,
"Treating version %s as 0.9 for backward "
"compatibility
\n
"
,
attrib
);
}
g_free
(
attrib
);
}
else
if
(
!
xmlStrcmp
(
attributes
[
i
],
(
xmlChar
*
)
"id"
))
{
g_free
(
js
->
stream_id
);
js
->
stream_id
=
attrib
;
}
else
{
g_free
(
attrib
);
}
}
if
(
js
->
stream_id
==
NULL
)
{
/* Let's make up a placeholder stream ID, which we need to do
* because we flag on it being NULL as a special case in this
* parsing code.
*/
js
->
stream_id
=
g_strdup
(
""
);
purple_debug_info
(
"jabber"
,
"Server failed to specify a stream "
"ID (underspecified in rfc3920, but intended "
"to be a MUST; digest legacy auth may fail.
\n
"
);
}
}
else
{
if
(
js
->
current
)
node
=
purple_xmlnode_new_child
(
js
->
current
,
(
const
char
*
)
element_name
);
else
node
=
purple_xmlnode_new
((
const
char
*
)
element_name
);
purple_xmlnode_set_namespace
(
node
,
(
const
char
*
)
namespace
);
purple_xmlnode_set_prefix
(
node
,
(
const
char
*
)
prefix
);
if
(
nb_namespaces
!=
0
)
{
node
->
namespace_map
=
g_hash_table_new_full
(
g_str_hash
,
g_str_equal
,
g_free
,
g_free
);
for
(
i
=
0
,
j
=
0
;
i
<
nb_namespaces
;
i
++
,
j
+=
2
)
{
const
char
*
key
=
(
const
char
*
)
namespaces
[
j
];
const
char
*
val
=
(
const
char
*
)
namespaces
[
j
+
1
];
g_hash_table_insert
(
node
->
namespace_map
,
g_strdup
(
key
?
key
:
""
),
g_strdup
(
val
?
val
:
""
));
}
}
for
(
i
=
0
;
i
<
nb_attributes
*
5
;
i
+=
5
)
{
const
char
*
name
=
(
const
char
*
)
attributes
[
i
];
const
char
*
prefix
=
(
const
char
*
)
attributes
[
i
+
1
];
const
char
*
attrib_ns
=
(
const
char
*
)
attributes
[
i
+
2
];
char
*
txt
;
int
attrib_len
=
attributes
[
i
+
4
]
-
attributes
[
i
+
3
];
char
*
attrib
=
g_strndup
((
gchar
*
)
attributes
[
i
+
3
],
attrib_len
);
txt
=
attrib
;
attrib
=
purple_unescape_text
(
txt
);
g_free
(
txt
);
purple_xmlnode_set_attrib_full
(
node
,
name
,
attrib_ns
,
prefix
,
attrib
);
g_free
(
attrib
);
}
js
->
current
=
node
;
}
}
static
void
jabber_parser_element_end_libxml
(
void
*
user_data
,
const
xmlChar
*
element_name
,
const
xmlChar
*
prefix
,
const
xmlChar
*
namespace
)
{
JabberStream
*
js
=
user_data
;
if
(
!
js
->
current
)
return
;
if
(
js
->
current
->
parent
)
{
if
(
!
xmlStrcmp
((
xmlChar
*
)
js
->
current
->
name
,
element_name
))
js
->
current
=
js
->
current
->
parent
;
}
else
{
PurpleXmlNode
*
packet
=
js
->
current
;
js
->
current
=
NULL
;
jabber_process_packet
(
js
,
&
packet
);
if
(
packet
!=
NULL
)
purple_xmlnode_free
(
packet
);
}
}
static
void
jabber_parser_element_text_libxml
(
void
*
user_data
,
const
xmlChar
*
text
,
int
text_len
)
{
JabberStream
*
js
=
user_data
;
if
(
!
js
->
current
)
return
;
if
(
!
text
||
!
text_len
)
return
;
purple_xmlnode_insert_data
(
js
->
current
,
(
const
char
*
)
text
,
text_len
);
}
static
void
jabber_parser_structured_error_handler
(
void
*
user_data
,
xmlErrorPtr
error
)
{
JabberStream
*
js
=
user_data
;
if
(
error
->
level
==
XML_ERR_WARNING
&&
purple_strequal
(
error
->
message
,
"xmlns: URI vcard-temp is not absolute
\n
"
))
/*
* This message happens when parsing vcards, and is normal, so don't
* bother logging it because people scare easily.
*/
return
;
if
(
error
->
level
==
XML_ERR_FATAL
&&
error
->
code
==
XML_ERR_DOCUMENT_END
)
/*
* This is probably more annoying than the vcard-temp error; it occurs
* because we disconnect in most cases without waiting for the receiving
* </stream:stream> (limitations of libpurple)
*/
return
;
purple_debug_error
(
"jabber"
,
"XML parser error for JabberStream %p: "
"Domain %i, code %i, level %i: %s"
,
js
,
error
->
domain
,
error
->
code
,
error
->
level
,
(
error
->
message
?
error
->
message
:
"(null)
\n
"
));
}
static
xmlSAXHandler
jabber_parser_libxml
=
{
NULL
,
/*internalSubset*/
NULL
,
/*isStandalone*/
NULL
,
/*hasInternalSubset*/
NULL
,
/*hasExternalSubset*/
NULL
,
/*resolveEntity*/
NULL
,
/*getEntity*/
NULL
,
/*entityDecl*/
NULL
,
/*notationDecl*/
NULL
,
/*attributeDecl*/
NULL
,
/*elementDecl*/
NULL
,
/*unparsedEntityDecl*/
NULL
,
/*setDocumentLocator*/
NULL
,
/*startDocument*/
NULL
,
/*endDocument*/
NULL
,
/*startElement*/
NULL
,
/*endElement*/
NULL
,
/*reference*/
jabber_parser_element_text_libxml
,
/*characters*/
NULL
,
/*ignorableWhitespace*/
NULL
,
/*processingInstruction*/
NULL
,
/*comment*/
NULL
,
/*warning*/
NULL
,
/*error*/
NULL
,
/*fatalError*/
NULL
,
/*getParameterEntity*/
NULL
,
/*cdataBlock*/
NULL
,
/*externalSubset*/
XML_SAX2_MAGIC
,
/*initialized*/
NULL
,
/*_private*/
jabber_parser_element_start_libxml
,
/*startElementNs*/
jabber_parser_element_end_libxml
,
/*endElementNs*/
jabber_parser_structured_error_handler
/*serror*/
};
void
jabber_parser_setup
(
JabberStream
*
js
)
{
/* This seems backwards, but it makes sense. The libxml code creates
* the parser context when you try to use it (this way, it can figure
* out the encoding at creation time. So, setting up the parser is
* just a matter of destroying any current parser. */
jabber_parser_free
(
js
);
}
void
jabber_parser_free
(
JabberStream
*
js
)
{
if
(
js
->
context
)
{
xmlParseChunk
(
js
->
context
,
NULL
,
0
,
1
);
xmlFreeParserCtxt
(
js
->
context
);
js
->
context
=
NULL
;
}
}
void
jabber_parser_process
(
JabberStream
*
js
,
const
char
*
buf
,
int
len
)
{
int
ret
;
if
(
js
->
context
==
NULL
)
{
/* libxml inconsistently starts parsing on creating the
* parser, so do a ParseChunk right afterwards to force it. */
js
->
context
=
xmlCreatePushParserCtxt
(
&
jabber_parser_libxml
,
js
,
buf
,
len
,
NULL
);
xmlParseChunk
(
js
->
context
,
""
,
0
,
0
);
}
else
if
((
ret
=
xmlParseChunk
(
js
->
context
,
buf
,
len
,
0
))
!=
XML_ERR_OK
)
{
xmlError
*
err
=
xmlCtxtGetLastError
(
js
->
context
);
/*
* libxml2 uses a global setting to determine whether or not to store
* warnings. Other libraries may set this, which causes err to be
* NULL. See #8136 for details.
*/
xmlErrorLevel
level
=
XML_ERR_WARNING
;
if
(
err
)
level
=
err
->
level
;
switch
(
level
)
{
case
XML_ERR_NONE
:
purple_debug_info
(
"jabber"
,
"xmlParseChunk returned info %i
\n
"
,
ret
);
break
;
case
XML_ERR_WARNING
:
purple_debug_warning
(
"jabber"
,
"xmlParseChunk returned warning %i
\n
"
,
ret
);
break
;
case
XML_ERR_ERROR
:
purple_debug_error
(
"jabber"
,
"xmlParseChunk returned error %i
\n
"
,
ret
);
break
;
case
XML_ERR_FATAL
:
purple_debug_error
(
"jabber"
,
"xmlParseChunk returned fatal %i
\n
"
,
ret
);
purple_connection_error
(
js
->
gc
,
PURPLE_CONNECTION_ERROR_NETWORK_ERROR
,
_
(
"XML Parse error"
));
break
;
}
}
if
(
js
->
protocol_version
.
major
==
0
&&
js
->
protocol_version
.
minor
==
9
&&
!
purple_connection_get_error_info
(
js
->
gc
)
&&
(
js
->
state
==
JABBER_STREAM_INITIALIZING
||
js
->
state
==
JABBER_STREAM_INITIALIZING_ENCRYPTION
))
{
/*
* Legacy servers don't advertise features, so if we've just gotten
* the opening <stream:stream> and there was no version, we need to
* immediately start legacy IQ auth.
*/
jabber_stream_set_state
(
js
,
JABBER_STREAM_AUTHENTICATING
);
jabber_auth_start_old
(
js
);
}
}