[mod_rewrite] Implement rewrite action without regex
parent
4980987578
commit
048c66938c
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@ -25,7 +25,7 @@
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* rewrite.debug = <true|false>;
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* - if set, debug information is written to the log
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* Actions:
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* rewrite "/new/path"; (not implemented yet)
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* rewrite "/new/path";
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* - sets request.path to "/new/path", substituting all placeholders. $0..$9 get replaced by empty strings.
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* rewrite "regex" => "/new/path";
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* - sets request.path to "/new/path" if "regex" matched the original req.path.
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@ -47,7 +47,6 @@
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* For example "^foo\\dbar$" will end up as "^foo\dbar$" as regex input, which would match things like "foo3bar".
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*
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* Todo:
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* - rewrite rule without regex, just overwriting the path/query
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* - implement rewrite_optimized which reorders rules according to hitcount
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* - implement rewrite_raw which uses the raw uri
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*
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@ -229,24 +228,32 @@ static gboolean rewrite_internal(liVRequest *vr, GString *dest_path, GString *de
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guint i;
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GString *str;
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gchar *path;
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GMatchInfo *match_info;
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gint start_pos, end_pos;
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gboolean encoded;
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GString *dest = dest_path;
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GMatchInfo *match_info = NULL;
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if (raw)
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path = vr->request.uri.raw->str;
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else
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path = vr->request.uri.path->str;
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if (!g_regex_match(regex, path, 0, &match_info))
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if (regex && !g_regex_match(regex, path, 0, &match_info)) {
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if (match_info)
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g_match_info_free(match_info);
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return FALSE;
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}
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g_string_truncate(dest_path, 0);
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g_string_truncate(dest_query, 0);
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if (!parts->len)
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if (!parts->len) {
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if (match_info)
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g_match_info_free(match_info);
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return TRUE;
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}
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for (i = 0; i < parts->len; i++) {
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rewrite_part *rp = &g_array_index(parts, rewrite_part, i);
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@ -255,7 +262,7 @@ static gboolean rewrite_internal(liVRequest *vr, GString *dest_path, GString *de
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switch (rp->type) {
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case REWRITE_PART_STRING: g_string_append_len(dest, GSTR_LEN(rp->data.str)); break;
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case REWRITE_PART_CAPTURED:
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if (g_match_info_fetch_pos(match_info, rp->data.ndx, &start_pos, &end_pos) && start_pos != -1)
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if (regex && g_match_info_fetch_pos(match_info, rp->data.ndx, &start_pos, &end_pos) && start_pos != -1)
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g_string_append_len(dest, path + start_pos, end_pos - start_pos);
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break;
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@ -325,8 +332,12 @@ static liHandlerResult rewrite(liVRequest *vr, gpointer param, gpointer *context
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if (rewrite_internal(vr, vr->wrk->tmp_str, g_ptr_array_index(rpd->tmp_strings, vr->wrk->ndx), rule->regex, rule->parts, FALSE)) {
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/* regex matched */
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if (debug)
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VR_DEBUG(vr, "rewrite: \"%s\" => \"%s\"", vr->request.uri.path->str, vr->wrk->tmp_str->str);
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if (debug) {
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VR_DEBUG(vr, "rewrite: path \"%s\" => \"%s\", query \"%s\" => \"%s\"",
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vr->request.uri.path->str, vr->wrk->tmp_str->str,
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vr->request.uri.query->str, ((GString*)g_ptr_array_index(rpd->tmp_strings, vr->wrk->ndx))->str
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);
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}
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g_string_truncate(vr->request.uri.path, 0);
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g_string_append_len(vr->request.uri.path, GSTR_LEN(vr->wrk->tmp_str));
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@ -354,7 +365,9 @@ static void rewrite_free(liServer *srv, gpointer param) {
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rewrite_rule *rule = &g_array_index(rd->rules, rewrite_rule, i);
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rewrite_parts_free(rule->parts);
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g_regex_unref(rule->regex);
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if (rule->regex)
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g_regex_unref(rule->regex);
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}
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g_array_free(rd->rules, TRUE);
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@ -373,8 +386,8 @@ static liAction* rewrite_create(liServer *srv, liPlugin* p, liValue *val) {
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UNUSED(srv);
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UNUSED(p);
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if (!val || val->type != LI_VALUE_LIST) {
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ERROR(srv, "%s", "rewrite expects a either a tuple of strings or a list of those");
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if (!val || !(val->type == LI_VALUE_STRING || val->type == LI_VALUE_LIST)) {
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ERROR(srv, "%s", "rewrite expects a either a string, a tuple of strings or a list of string tuples");
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return NULL;
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}
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@ -390,7 +403,20 @@ static liAction* rewrite_create(liServer *srv, liPlugin* p, liValue *val) {
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arr = val->data.list;
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if (arr->len == 2 && g_array_index(arr, liValue*, 0)->type == LI_VALUE_STRING && g_array_index(arr, liValue*, 1)->type == LI_VALUE_STRING) {
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if (val->type == LI_VALUE_STRING) {
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/* rewrite "/foo/bar"; */
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rule.has_querystring = FALSE;
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rule.parts = rewrite_parts_parse(val->data.string, &rule.has_querystring);
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rule.regex = NULL;
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if (!rule.parts) {
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rewrite_free(NULL, rd);
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ERROR(srv, "rewrite: error parsing rule \"%s\"", val->data.string->str);
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return NULL;
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}
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g_array_append_val(rd->rules, rule);
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} else if (arr->len == 2 && g_array_index(arr, liValue*, 0)->type == LI_VALUE_STRING && g_array_index(arr, liValue*, 1)->type == LI_VALUE_STRING) {
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/* only one rule */
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rule.has_querystring = FALSE;
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rule.parts = rewrite_parts_parse(g_array_index(arr, liValue*, 1)->data.string, &rule.has_querystring);
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