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Fix the rel attribute handling for link tags

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This commit is contained in:
Tim Rühsen
2021-08-07 20:34:13 +02:00
parent d6e5641980
commit 10c5057a8a
1 changed files with 24 additions and 6 deletions
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30
libwget/html_url.c
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@ -222,18 +222,36 @@ static void html_get_url(void *context, int flags, const char *tag, const char *
if ((*tag|0x20) == 'l' && !wget_strcasecmp_ascii(tag, "link")) {
if (!wget_strcasecmp_ascii(attr, "rel")) {
if (!wget_strncasecmp_ascii(val, "shortcut icon", len)
|| !wget_strncasecmp_ascii(val, "stylesheet", len)
|| !wget_strncasecmp_ascii(val, "preload", len))
ctx->link_inline = 1;
else
ctx->link_inline = 0;
ctx->link_inline = 0;
// "rel" contains a space separated list of items.
// see https://html.spec.whatwg.org/multipage/semantics.html#attr-link-rel
// see https://html.spec.whatwg.org/multipage/links.html#linkTypes
while (len) {
const char *p;
for (p = val;len && !c_isspace(*val); val++, len--); // find end of item
if (p == val) { val++; len--; continue; } // found a delimiter
// Check for items that may be important to display the page.
if (!wget_strncasecmp_ascii(p, "icon", val - p)
|| !wget_strncasecmp_ascii(p, "manifest", val - p)
|| !wget_strncasecmp_ascii(p, "modulepreload", val - p)
|| !wget_strncasecmp_ascii(p, "stylesheet", val - p)
|| !wget_strncasecmp_ascii(p, "prefetch", val - p)
|| !wget_strncasecmp_ascii(p, "preload", val - p))
{
ctx->link_inline = 1;
break;
}
}
if (ctx->uri_index >= 0) {
// href= came before rel=
wget_html_parsed_url *url = wget_vector_get(res->uris, ctx->uri_index);
url->link_inline = ctx->link_inline;
}
return;
}
}