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mothra: bruteforce image src= attribute

--- a/sys/src/cmd/mothra/rdhtml.c

+++ b/sys/src/cmd/mothra/rdhtml.c

@@ -264,6 +264,8 @@

 /* 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 @@

 		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);

-- 

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