[sr-dev] git:master: xhttp: added transformation to break a URL into "path" and " querystring"

Module: sip-router Branch: master Commit: 378bd71de3b035b497469f89a640931d0792ce4f URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=378bd71… Author: Peter Dunkley &lt;peter.dunkley(a)crocodilertc.net&gt; Committer: Peter Dunkley &lt;peter.dunkley(a)crocodilertc.net&gt; Date: Wed Sep 25 16:12:50 2013 +0100 xhttp: added transformation to break a URL into "path" and "querystring" --- modules/xhttp/xhttp_mod.c | 13 +++++ modules/xhttp/xhttp_trans.c | 125 +++++++++++++++++++++++++++++++++++++++++++ modules/xhttp/xhttp_trans.h | 30 ++++++++++ 3 files changed, 168 insertions(+), 0 deletions(-) diff --git a/modules/xhttp/xhttp_mod.c b/modules/xhttp/xhttp_mod.c index 23ac3c4..9848892 100644 --- a/modules/xhttp/xhttp_mod.c +++ b/modules/xhttp/xhttp_mod.c @@ -45,6 +45,7 @@ #include "../../pvar.h" #include "api.h" +#include "xhttp_trans.h" MODULE_VERSION @@ -106,6 +107,13 @@ struct module_exports exports= { 0 /* per-child init function */ }; +static tr_export_t mod_trans[] = { + { {"url", sizeof("url")-1}, + xhttp_tr_parse_url }, + + { { 0, 0 }, 0 } +}; + /** * */ @@ -162,6 +170,11 @@ static int mod_init(void) return 0; } +int mod_register(char *path, int *dlflags, void *p1, void *p2) +{ + return register_trans_mod(path, mod_trans); +} + /** * */ diff --git a/modules/xhttp/xhttp_trans.c b/modules/xhttp/xhttp_trans.c new file mode 100644 index 0000000..35c1609 --- /dev/null +++ b/modules/xhttp/xhttp_trans.c @@ -0,0 +1,125 @@ +/* + * $Id$ + * + * Copyright (C) 2013 Crocodile RCS Ltd + * + * This file is part of Kamailio, a free SIP server. + * + * Kamailio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version + * + * Kamailio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include "../../pvar.h" +#include "../../str.h" +#include "../../trim.h" +#include "xhttp_trans.h" + +enum _tr_xhttp_type { TR_XHTTP_NONE = 0, TR_XHTTPURL, TR_XHTTPURLQUERYSTRING }; +enum _tr_xhttpurl_subtype { TR_XHTTPURL_NONE = 0, TR_XHTTPURL_PATH, + TR_XHTTPURL_QUERYSTRING}; +enum _tr_xhttpquerystring_subtype { TR_XHTTPUTLQUERYSTRING_NONE = 0, + TR_XHTTPURLQUERYSTRING_VALUE}; + +int xhttp_tr_eval_xhttpurl(struct sip_msg *msg, tr_param_t *tp, int subtype, + pv_value_t *val) +{ + int pos = 0; + + if (val == NULL || val->flags & PV_VAL_NULL) + return -1; + + if (!(val->flags & PV_VAL_STR)) + { + val->rs.s = int2str(val->ri, &val->rs.len); + val->flags = PV_VAL_STR; + } + + switch (subtype) + { + case TR_XHTTPURL_PATH: + while (val->rs.s[pos] != '?' && pos < val->rs.len) + pos++; + + val->rs.len = pos; + break; + + case TR_XHTTPURL_QUERYSTRING: + while (val->rs.s[pos] != '?' && pos < val->rs.len) + pos++; + + if (pos >= val->rs.len) + { + val->rs.s[0] = '\0'; + val->rs.len = 0; + break; + } + + val->rs.s = &val->rs.s[pos + 1]; + val->rs.len = val->rs.len - pos - 1; + break; + + default: + LM_ERR("unknown subtype %d\n", subtype); + return -1; + } + + return 0; +} + +char *xhttp_tr_parse_url(str *in, trans_t *t) +{ + char *p; + str name; + + if (in == NULL || in->s == NULL || t == NULL) + return NULL; + + p = in->s; + name.s = in->s; + t->type = TR_XHTTPURL; + t->trf = xhttp_tr_eval_xhttpurl; + + /* find next token */ + while (is_in_str(p, in) && *p != TR_PARAM_MARKER && *p != TR_RBRACKET) + { + p++; + } + + if (*p == '\0') + { + LM_ERR("invalid transformation: %.*s\n", in->len, in->s); + goto error; + } + name.len = p - name.s; + trim(&name); + + if (name.len == 4 && strncasecmp(name.s, "path", 4) == 0) + { + t->subtype = TR_XHTTPURL_PATH; + goto done; + } + else if (name.len == 11 && strncasecmp(name.s, "querystring", 11) == 0) + { + t->subtype = TR_XHTTPURL_QUERYSTRING; + goto done; + } + + LM_ERR("unknown transformation: %.*s/%.*s/%d!\n", in->len, in->s, + name.len, name.s, name.len); +error: + return NULL; + +done: + t->name = name; + return p; +} diff --git a/modules/xhttp/xhttp_trans.h b/modules/xhttp/xhttp_trans.h new file mode 100644 index 0000000..0f27ca8 --- /dev/null +++ b/modules/xhttp/xhttp_trans.h @@ -0,0 +1,30 @@ +/* + * $Id$ + * + * Copyright (C) 2013 Crocodile RCS Ltd + * + * This file is part of Kamailio, a free SIP server. + * + * Kamailio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version + * + * Kamailio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef XHTTP_TRANS_H_ +#define XHTTP_TRANS_H_ + +#include "../../pvar.h" +#include "../../str.h" + +char *xhttp_tr_parse_url(str *in, trans_t *t); + +#endif /* XHTTP_TRANS_H_ */