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Support differences in rule syntax and refactor the URL parser

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Apparently some lists use a different syntax than what is
recommended, so we take that into account.
This commit is contained in:
Alexander Butenko 2009-11-26 23:45:38 +01:00 committed by Christian Dywan
parent ffee6e3850
commit ce1013e622
1 changed files with 69 additions and 59 deletions
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128
extensions/adblock.c
View file

@ -95,9 +95,6 @@ adblock_fixup_regexp (gchar* src)
case '|':
*s++ = '\\';
break;
case '/':
*s++ = '\\';
break;
/* FIXME: We actually need to match :[0-9]+ or '/'. Sign means
"here could be port number or nothing". So bla.com^ will match
bla.com/ or bla.com:8080/ but not bla.com.au/ */
@ -557,11 +554,13 @@ adblock_is_matched (const gchar* opts,
{
gchar* patt;
patt = g_strdup (data->uri);
/* TODO: To figure out
if (g_regex_match_simple ("type=fulluri,", opts, G_REGEX_UNGREEDY, G_REGEX_MATCH_NOTEMPTY))
patt = g_strdup (data->uri);
else
patt = g_strdup (data->query);
*/
if (g_regex_match_full (regex, patt, -1, 0, 0, NULL, NULL))
{
if (g_regex_match_simple (",third-party", opts,
@ -766,6 +765,47 @@ adblock_compile_regexp (GHashTable* tbl,
}
}
static void
adblock_add_url_pattern (gchar* format,
gchar* type,
gchar* line)
{
gchar** data;
gchar* patt;
gchar* fixed_patt;
gchar* format_patt;
gchar* opts;
data = g_strsplit (line, "$", -1);
if (data && data[0] && data[1] && data[2])
{
patt = g_strdup_printf ("%s%s", data[0], data[1]);
opts = g_strdup_printf ("type=%s,regexp=%s,%s", type, patt, data[2]);
}
else if (data && data[0] && data[1])
{
patt = g_strdup (data[0]);
opts = g_strdup_printf ("type=%s,regexp=%s,%s", type, patt, data[1]);
}
else
{
patt = g_strdup (data[0]);
opts = g_strdup_printf ("type=%s,regexp=%s", type, patt);
}
fixed_patt = adblock_fixup_regexp (patt);
format_patt = g_strdup_printf (format, fixed_patt);
/* g_debug ("got: %s opts %s", format_patt, opts); */
adblock_compile_regexp (pattern, format_patt, opts);
g_strfreev (data);
g_free (patt);
g_free (fixed_patt);
g_free (format_patt);
g_free (opts);
}
static void
adblock_frame_add (gchar* line)
{
@ -778,11 +818,12 @@ adblock_frame_add (gchar* line)
}
static void
adblock_frame_add_private (gchar* line)
adblock_frame_add_private (const gchar* line,
const gchar* sep)
{
gchar* new_blockcss;
gchar** data;
data = g_strsplit (line, "##", 2);
data = g_strsplit (line, sep, 2);
if (strstr (data[0],","))
{
@ -807,56 +848,6 @@ adblock_frame_add_private (gchar* line)
g_strfreev (data);
}
static void
adblock_add_url_pattern (gchar* line)
{
gchar* opts;
gchar** data;
gchar* patt;
gchar* parsed;
if (line[0] == '|' && line[1] == '|' )
{
(void)*line++;
(void)*line++;
data = g_strsplit (line, "$", 2);
parsed = adblock_fixup_regexp (data[0]);
patt = g_strdup_printf ("^https?://([a-z0-9\\.]+)?%s", parsed);
if (data[1])
opts = g_strdup_printf ("type=fulluri,regexp=%s,%s", patt, data[1]);
else
opts = g_strdup_printf ("type=fulluri,regexp=%s", patt);
g_strfreev (data);
g_free (parsed);
}
else if (line[0] == '|')
{
(void)*line++;
data = g_strsplit (line, "$", 2);
parsed = adblock_fixup_regexp (data[0]);
patt = g_strdup_printf ("^%s", parsed);
if (data[1])
opts = g_strdup_printf ("type=fulluri,regexp=%s,%s", patt, data[1]);
else
opts = g_strdup_printf ("type=fulluri,regexp=%s", patt);
g_strfreev (data);
g_free (parsed);
}
else
{
patt = adblock_fixup_regexp (line);
opts = g_strdup_printf ("regexp=%s", patt);
}
/* g_debug ("got: %s opts %s", patt, opts); */
adblock_compile_regexp (pattern, patt, opts);
g_free (patt);
}
static gchar*
adblock_parse_line (gchar* line)
{
@ -879,19 +870,38 @@ adblock_parse_line (gchar* line)
adblock_frame_add (line);
return NULL;
}
/* Some crazy lists do this */
/* Got CSS block hider. Workaround */
if (line[0] == '#')
return NULL;
/* Got per domain CSS hider rule */
if (strstr (line,"##"))
{
adblock_frame_add_private (line);
adblock_frame_add_private (line,"##");
return NULL;
}
/* Got per domain CSS hider rule. Workaround */
if (strstr (line,"#"))
{
adblock_frame_add_private (line,"#");
return NULL;
}
/* Got URL blocker rule */
adblock_add_url_pattern (line);
if (line[0] == '|' && line[1] == '|' )
{
(void)*line++;
(void)*line++;
adblock_add_url_pattern ("^https?://([a-z0-9\\.]+)?%s", "fulluri", line);
return NULL;
}
if (line[0] == '|')
{
(void)*line++;
adblock_add_url_pattern ("^%s", "fulluri", line);
return NULL;
}
adblock_add_url_pattern ("%s", "uri", line);
return line;
}