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mothra: bruteforce image src= attribute

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This commit is contained in:
cinap_lenrek 2012-08-16 09:03:57 +02:00
parent 2dd17995f1
commit 81954dbf25
1 changed files with 20 additions and 0 deletions
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20
sys/src/cmd/mothra/rdhtml.c
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@ -264,6 +264,8 @@ int entchar(int c){
/* return url if text token looks like a hyperlink */
char *linkify(char *s){
if(s == 0 && s[0] == 0)
return 0;
if(!cistrncmp(s, "http://", 7))
return strdup(s);
if(!cistrncmp(s, "https://", 8))
@ -701,6 +703,24 @@ void plrdhtml(char *name, int fd, Www *dst){
case Tag_img:
if(str=pl_getattr(g.attr, "src"))
nstrcpy(g.state->image, str, sizeof(g.state->image));
else {
Pair *a;
/*
* hack to emulate javascript that rewrites some attribute
* into src= after page got loaded. just look for some
* attribute that looks like a url.
*/
for(a = g.attr; a->name; a++){
if(strcmp(a->name, "longdesc") == 0)
continue;
if(str = linkify(a->value)){
nstrcpy(g.state->image, str, sizeof(g.state->image));
free(str);
break;
}
}
}
g.state->ismap=pl_hasattr(g.attr, "ismap");
if(str=pl_getattr(g.attr, "width"))
g.state->width=strtolength(&g, HORIZ, str);