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Reject creation of http(s) urls without hosts.

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This commit is contained in:
Michael Drake 2014-02-11 11:34:10 +00:00
parent 2f66b6f6e2
commit 42be1ffa7b
1 changed files with 53 additions and 25 deletions
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78
utils/nsurl.c
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@ -1221,6 +1221,39 @@ static void nsurl_calc_hash(nsurl *url)
}
/**
* Destroy components
*
* \param c url components
*/
static void nsurl_destroy_components(struct nsurl_components *c)
{
if (c->scheme)
lwc_string_unref(c->scheme);
if (c->username)
lwc_string_unref(c->username);
if (c->password)
lwc_string_unref(c->password);
if (c->host)
lwc_string_unref(c->host);
if (c->port)
lwc_string_unref(c->port);
if (c->path)
lwc_string_unref(c->path);
if (c->query)
lwc_string_unref(c->query);
if (c->fragment)
lwc_string_unref(c->fragment);
}
#ifdef NSURL_DEBUG
/**
* Dump a NetSurf URL's internal components
@ -1272,6 +1305,7 @@ nserror nsurl_create(const char * const url_s, nsurl **url)
struct nsurl_component_lengths str_len = { 0, 0, 0, 0, 0, 0, 0, 0 };
enum nsurl_string_flags str_flags = 0;
nserror e = NSERROR_OK;
bool match;
assert(url_s != NULL);
@ -1300,8 +1334,22 @@ nserror nsurl_create(const char * const url_s, nsurl **url)
/* Finished with buffer */
free(buff);
if (e != NSERROR_OK)
if (e != NSERROR_OK) {
nsurl_destroy_components(&c);
return NSERROR_NOMEM;
}
/* Validate URL */
if ((lwc_string_isequal(c.scheme, corestring_lwc_http,
&match) == lwc_error_ok && match == true) ||
(lwc_string_isequal(c.scheme, corestring_lwc_https,
&match) == lwc_error_ok && match == true)) {
/* http, https must have host */
if (c.host == NULL) {
nsurl_destroy_components(&c);
return NSERROR_BAD_URL;
}
}
/* Get the string length and find which parts of url are present */
nsurl__get_string_data(&c, NSURL_WITH_FRAGMENT, &length,
@ -1309,8 +1357,10 @@ nserror nsurl_create(const char * const url_s, nsurl **url)
/* Create NetSurf URL object */
*url = malloc(sizeof(nsurl) + length + 1); /* Add 1 for \0 */
if (*url == NULL)
if (*url == NULL) {
nsurl_destroy_components(&c);
return NSERROR_NOMEM;
}
(*url)->components = c;
(*url)->length = length;
@ -1353,29 +1403,7 @@ void nsurl_unref(nsurl *url)
#endif
/* Release lwc strings */
if (url->components.scheme)
lwc_string_unref(url->components.scheme);
if (url->components.username)
lwc_string_unref(url->components.username);
if (url->components.password)
lwc_string_unref(url->components.password);
if (url->components.host)
lwc_string_unref(url->components.host);
if (url->components.port)
lwc_string_unref(url->components.port);
if (url->components.path)
lwc_string_unref(url->components.path);
if (url->components.query)
lwc_string_unref(url->components.query);
if (url->components.fragment)
lwc_string_unref(url->components.fragment);
nsurl_destroy_components(&url->components);
/* Free the NetSurf URL */
free(url);