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Revert "Print error messages for truncated UTF-8 sequences"

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This reverts commit 79c8a6b which caused a serious regression in
streaming mode.

Also reverts part of commit 52ceced "Fix infinite loops with push
parser in recovery mode".

Fixes bug 786554.
This commit is contained in:
Nick Wellnhofer 2017-08-30 14:16:01 +02:00
parent e29e50e54f
commit 69936b129f
14 changed files with 28 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
parser.c
View File

@ -4586,7 +4586,7 @@ xmlParseCharDataComplex(xmlParserCtxtPtr ctxt, int cdata) {
}
}
}
if ((ctxt->input->cur < ctxt->input->end) && (!IS_CHAR(cur))) {
if ((cur != 0) && (!IS_CHAR(cur))) {
/* Generate the error and skip the offending character */
xmlFatalErrMsgInt(ctxt, XML_ERR_INVALID_CHAR,
"PCDATA invalid Char value %d\n",

55
parserInternals.c
View File

@ -700,6 +700,16 @@ xmlCurrentChar(xmlParserCtxtPtr ctxt, int *len) {
}
return((int) *ctxt->input->cur);
encoding_error:
/*
* An encoding problem may arise from a truncated input buffer
* splitting a character in the middle. In that case do not raise
* an error but return 0 to endicate an end of stream problem
*/
if (ctxt->input->end - ctxt->input->cur < 4) {
*len = 0;
return(0);
}
/*
* If we detect an UTF8 error that probably mean that the
* input encoding didn't get properly advertised in the
@ -710,21 +720,9 @@ encoding_error:
{
char buffer[150];
if (ctxt->input->cur[1] == 0) {
snprintf(&buffer[0], 149, "Bytes: 0x%02X EOF\n",
ctxt->input->cur[0]);
} else if (ctxt->input->cur[2] == 0) {
snprintf(&buffer[0], 149, "Bytes: 0x%02X 0x%02X EOF\n",
ctxt->input->cur[0], ctxt->input->cur[1]);
} else if (ctxt->input->cur[3] == 0) {
snprintf(&buffer[0], 149, "Bytes: 0x%02X 0x%02X 0x%02X EOF\n",
ctxt->input->cur[0], ctxt->input->cur[1],
ctxt->input->cur[2]);
} else {
snprintf(&buffer[0], 149, "Bytes: 0x%02X 0x%02X 0x%02X 0x%02X\n",
ctxt->input->cur[0], ctxt->input->cur[1],
ctxt->input->cur[2], ctxt->input->cur[3]);
}
snprintf(&buffer[0], 149, "Bytes: 0x%02X 0x%02X 0x%02X 0x%02X\n",
ctxt->input->cur[0], ctxt->input->cur[1],
ctxt->input->cur[2], ctxt->input->cur[3]);
__xmlErrEncoding(ctxt, XML_ERR_INVALID_CHAR,
"Input is not proper UTF-8, indicate encoding !\n%s",
BAD_CAST buffer, NULL);
@ -814,6 +812,17 @@ xmlStringCurrentChar(xmlParserCtxtPtr ctxt, const xmlChar * cur, int *len)
*len = 1;
return ((int) *cur);
encoding_error:
/*
* An encoding problem may arise from a truncated input buffer
* splitting a character in the middle. In that case do not raise
* an error but return 0 to endicate an end of stream problem
*/
if ((ctxt == NULL) || (ctxt->input == NULL) ||
(ctxt->input->end - ctxt->input->cur < 4)) {
*len = 0;
return(0);
}
/*
* If we detect an UTF8 error that probably mean that the
* input encoding didn't get properly advertised in the
@ -824,19 +833,9 @@ encoding_error:
{
char buffer[150];
if (cur[1] == 0) {
snprintf(&buffer[0], 149, "Bytes: 0x%02X EOF\n",
cur[0]);
} else if (cur[2] == 0) {
snprintf(&buffer[0], 149, "Bytes: 0x%02X 0x%02X EOF\n",
cur[0], cur[1]);
} else if (cur[3] == 0) {
snprintf(&buffer[0], 149, "Bytes: 0x%02X 0x%02X 0x%02X EOF\n",
cur[0], cur[1], cur[2]);
} else {
snprintf(&buffer[0], 149, "Bytes: 0x%02X 0x%02X 0x%02X 0x%02X\n",
cur[0], cur[1], cur[2], cur[3]);
}
snprintf(buffer, 149, "Bytes: 0x%02X 0x%02X 0x%02X 0x%02X\n",
ctxt->input->cur[0], ctxt->input->cur[1],
ctxt->input->cur[2], ctxt->input->cur[3]);
__xmlErrEncoding(ctxt, XML_ERR_INVALID_CHAR,
"Input is not proper UTF-8, indicate encoding !\n%s",
BAD_CAST buffer, NULL);

0
result/errors/partial_utf8_1.xml
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7
result/errors/partial_utf8_1.xml.err
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@ -1,7 +0,0 @@
./test/errors/partial_utf8_1.xml:1: parser error : Input is not proper UTF-8, indicate encoding !
Bytes: 0xC2 EOF
<a>Â
^
./test/errors/partial_utf8_1.xml:1: parser error : Premature end of data in tag a line 1
<a>Â
^

4
result/errors/partial_utf8_1.xml.str
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@ -1,4 +0,0 @@
./test/errors/partial_utf8_1.xml:1: parser error : Extra content at the end of the document
<a>Â
^
./test/errors/partial_utf8_1.xml : failed to parse

0
result/errors/partial_utf8_2.xml
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7
result/errors/partial_utf8_2.xml.err
View File

@ -1,7 +0,0 @@
./test/errors/partial_utf8_2.xml:1: parser error : Input is not proper UTF-8, indicate encoding !
Bytes: 0xE3 0xA0 EOF
<a>ã 
^
./test/errors/partial_utf8_2.xml:1: parser error : Premature end of data in tag a line 1
<a>ã 
^

5
result/errors/partial_utf8_2.xml.str
View File

@ -1,5 +0,0 @@
./test/errors/partial_utf8_2.xml:1: parser error : Input is not proper UTF-8, indicate encoding !
Bytes: 0xE3 0xA0 EOF
<a>ã 
^
./test/errors/partial_utf8_2.xml : failed to parse

0
result/errors/partial_utf8_3.xml
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7
result/errors/partial_utf8_3.xml.err
View File

@ -1,7 +0,0 @@
./test/errors/partial_utf8_3.xml:1: parser error : Input is not proper UTF-8, indicate encoding !
Bytes: 0xF2 0xA0 0xA0 EOF
<a>ò  
^
./test/errors/partial_utf8_3.xml:1: parser error : Premature end of data in tag a line 1
<a>ò  
^

5
result/errors/partial_utf8_3.xml.str
View File

@ -1,5 +0,0 @@
./test/errors/partial_utf8_3.xml:1: parser error : Input is not proper UTF-8, indicate encoding !
Bytes: 0xF2 0xA0 0xA0 EOF
<a>ò  
^
./test/errors/partial_utf8_3.xml : failed to parse

1
test/errors/partial_utf8_1.xml
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@ -1 +0,0 @@
<a>Â

1
test/errors/partial_utf8_2.xml
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@ -1 +0,0 @@
<a>ã 

1
test/errors/partial_utf8_3.xml
View File

@ -1 +0,0 @@
<a>ò