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add_html_to_string: Encode only known unsafe or non-ASCII characters.

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In particular, do not encode '%' and '/', which are common in URIs.
This commit is contained in:
Kalle Olavi Niemitalo 2007-03-18 11:10:33 +02:00 committed by Kalle Olavi Niemitalo
parent 3ee04479d4
commit 36dd1fa267
1 changed files with 5 additions and 9 deletions
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14
src/util/conv.c
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@ -274,22 +274,18 @@ add_string_replace(struct string *string, unsigned char *src, int len,
struct string * struct string *
add_html_to_string(struct string *string, const unsigned char *src, int len) add_html_to_string(struct string *string, const unsigned char *src, int len)
{ {
#define isalphanum(q) (isalnum(q) || (q) == '-' || (q) == '_')
for (; len; len--, src++) { for (; len; len--, src++) {
if (isalphanum(*src) || *src == ' ' if (*src < 0x20 || *src >= 0x7F
|| *src == '.' || *src == ':' || *src == ';') { || *src == '<' || *src == '>' || *src == '&'
add_bytes_to_string(string, src, 1); || *src == '\"' || *src == '\'') {
} else {
add_bytes_to_string(string, "&#", 2); add_bytes_to_string(string, "&#", 2);
add_long_to_string(string, (long) *src); add_long_to_string(string, (long) *src);
add_char_to_string(string, ';'); add_char_to_string(string, ';');
} else {
add_char_to_string(string, *src);
} }
} }
#undef isalphanum
return string; return string;
} }