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fixed validation of attributes content of type NAME NAMES NMTOKEN and

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* valid.c: fixed validation of attributes content of type
  NAME NAMES NMTOKEN and NMTOKENS to accept internationalized
  values, very old bug. Fixes #67671
Daniel
This commit is contained in:
Daniel Veillard
2002-01-13 15:43:22 +00:00
parent 8107a22f96
commit d8224e0f7e
3 changed files with 197 additions and 147 deletions
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141
parserInternals.c
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@ -1391,68 +1391,69 @@ encoding_error:
*/
int
xmlStringCurrentChar(xmlParserCtxtPtr ctxt, const xmlChar *cur, int *len) {
xmlStringCurrentChar(xmlParserCtxtPtr ctxt, const xmlChar * cur, int *len)
{
if ((ctxt == NULL) || (ctxt->charset == XML_CHAR_ENCODING_UTF8)) {
/*
* We are supposed to handle UTF8, check it's valid
* From rfc2044: encoding of the Unicode values on UTF-8:
*
* UCS-4 range (hex.) UTF-8 octet sequence (binary)
* 0000 0000-0000 007F 0xxxxxxx
* 0000 0080-0000 07FF 110xxxxx 10xxxxxx
* 0000 0800-0000 FFFF 1110xxxx 10xxxxxx 10xxxxxx
*
* Check for the 0x110000 limit too
*/
unsigned char c;
unsigned int val;
/*
* We are supposed to handle UTF8, check it's valid
* From rfc2044: encoding of the Unicode values on UTF-8:
*
* UCS-4 range (hex.) UTF-8 octet sequence (binary)
* 0000 0000-0000 007F 0xxxxxxx
* 0000 0080-0000 07FF 110xxxxx 10xxxxxx
* 0000 0800-0000 FFFF 1110xxxx 10xxxxxx 10xxxxxx
*
* Check for the 0x110000 limit too
*/
unsigned char c;
unsigned int val;
c = *cur;
if (c & 0x80) {
if ((cur[1] & 0xc0) != 0x80)
goto encoding_error;
if ((c & 0xe0) == 0xe0) {
c = *cur;
if (c & 0x80) {
if ((cur[1] & 0xc0) != 0x80)
goto encoding_error;
if ((c & 0xe0) == 0xe0) {
if ((cur[2] & 0xc0) != 0x80)
goto encoding_error;
if ((c & 0xf0) == 0xf0) {
if (((c & 0xf8) != 0xf0) ||
((cur[3] & 0xc0) != 0x80))
goto encoding_error;
/* 4-byte code */
*len = 4;
val = (cur[0] & 0x7) << 18;
val |= (cur[1] & 0x3f) << 12;
val |= (cur[2] & 0x3f) << 6;
val |= cur[3] & 0x3f;
} else {
/* 3-byte code */
*len = 3;
val = (cur[0] & 0xf) << 12;
val |= (cur[1] & 0x3f) << 6;
val |= cur[2] & 0x3f;
}
} else {
/* 2-byte code */
*len = 2;
val = (cur[0] & 0x1f) << 6;
val |= cur[1] & 0x3f;
}
if (!IS_CHAR(val)) {
if ((ctxt->sax != NULL) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Char 0x%X out of allowed range\n", val);
ctxt->errNo = XML_ERR_INVALID_ENCODING;
ctxt->wellFormed = 0;
ctxt->disableSAX = 1;
}
return(val);
} else {
/* 1-byte code */
*len = 1;
return((int) *cur);
}
if ((cur[2] & 0xc0) != 0x80)
goto encoding_error;
if ((c & 0xf0) == 0xf0) {
if (((c & 0xf8) != 0xf0) || ((cur[3] & 0xc0) != 0x80))
goto encoding_error;
/* 4-byte code */
*len = 4;
val = (cur[0] & 0x7) << 18;
val |= (cur[1] & 0x3f) << 12;
val |= (cur[2] & 0x3f) << 6;
val |= cur[3] & 0x3f;
} else {
/* 3-byte code */
*len = 3;
val = (cur[0] & 0xf) << 12;
val |= (cur[1] & 0x3f) << 6;
val |= cur[2] & 0x3f;
}
} else {
/* 2-byte code */
*len = 2;
val = (cur[0] & 0x1f) << 6;
val |= cur[1] & 0x3f;
}
if (!IS_CHAR(val)) {
if ((ctxt != NULL) && (ctxt->sax != NULL) &&
(ctxt->sax->error != NULL))
ctxt->sax->error(ctxt->userData,
"Char 0x%X out of allowed range\n",
val);
ctxt->errNo = XML_ERR_INVALID_ENCODING;
ctxt->wellFormed = 0;
ctxt->disableSAX = 1;
}
return (val);
} else {
/* 1-byte code */
*len = 1;
return ((int) *cur);
}
}
/*
* Assume it's a fixed length encoding (1) with
@ -1460,8 +1461,9 @@ xmlStringCurrentChar(xmlParserCtxtPtr ctxt, const xmlChar *cur, int *len) {
* XML constructs only use < 128 chars
*/
*len = 1;
return((int) *cur);
return ((int) *cur);
encoding_error:
/*
* If we detect an UTF8 error that probably mean that the
* input encoding didn't get properly advertised in the
@ -1469,17 +1471,20 @@ encoding_error:
* to ISO-Latin-1 (if you don't like this policy, just declare the
* encoding !)
*/
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) {
ctxt->sax->error(ctxt->userData,
"Input is not proper UTF-8, indicate encoding !\n");
ctxt->sax->error(ctxt->userData, "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]);
if (ctxt != NULL) {
if ((ctxt->sax != NULL) && (ctxt->sax->error != NULL)) {
ctxt->sax->error(ctxt->userData,
"Input is not proper UTF-8, indicate encoding !\n");
ctxt->sax->error(ctxt->userData,
"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]);
}
ctxt->errNo = XML_ERR_INVALID_ENCODING;
}
ctxt->errNo = XML_ERR_INVALID_ENCODING;
*len = 1;
return((int) *cur);
return ((int) *cur);
}
/**