src/test_filter_rewrite.cpp

   1 /* This file is part of Metaproxy.
   2    Copyright (C) 2005-2013 Index Data
   3
   4 Metaproxy is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 2, or (at your option) any later
   7 version.
   8
   9 Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17 */
  18
  19 #include "config.hpp"
  20 #include <iostream>
  21 #include <stdexcept>
  22
  23 #include "filter_http_client.hpp"
  24 #include "filter_http_rewrite.hpp"
  25 #include <metaproxy/util.hpp>
  26 #include "router_chain.hpp"
  27 #include <metaproxy/package.hpp>
  28
  29 #include <boost/regex.hpp>
  30 #include <boost/lexical_cast.hpp>
  31
  32 #include <yaz/log.h>
  33
  34 #define BOOST_AUTO_TEST_MAIN
  35 #define BOOST_TEST_DYN_LINK
  36
  37 #include <boost/test/auto_unit_test.hpp>
  38
  39 using namespace boost::unit_test;
  40 namespace mp = metaproxy_1;
  41
  42 struct TestConfig {
  43     TestConfig()
  44     {
  45         std::cout << "global setup\n";
  46         yaz_log_init_level(YLOG_ALL);
  47     }
  48     ~TestConfig()
  49     {
  50         std::cout << "global teardown\n";
  51     }
  52 };
  53
  54 BOOST_GLOBAL_FIXTURE( TestConfig );
  55
  56 BOOST_AUTO_TEST_CASE( test_filter_rewrite_1 )
  57 {
  58     try
  59     {
  60         std::cout << "Running non-xml config test case" << std::endl;
  61         mp::RouterChain router;
  62         mp::filter::HttpRewrite fhr;
  63
  64         //configure the filter
  65         mp::filter::HttpRewrite::spair_vec vec_req;
  66         vec_req.push_back(std::make_pair(
  67         "(?<proto>http\\:\\/\\/s?)(?<pxhost>[^\\/?#]+)\\/(?<pxpath>[^\\/]+)"
  68         "\\/(?<host>[^\\/]+)(?<path>.*)",
  69         "${proto}${host}${path}"
  70         ));
  71         vec_req.push_back(std::make_pair(
  72         "(?:Host\\: )(.*)",
  73         "Host: ${host}"
  74         ));
  75
  76         mp::filter::HttpRewrite::spair_vec vec_res;
  77         vec_res.push_back(std::make_pair(
  78         "(?<proto>http\\:\\/\\/s?)(?<host>[^\\/?# \"'>]+)\\/(?<path>[^ \"'>]+)",
  79         "${proto}${pxhost}/${pxpath}/${host}/${path}"
  80         ));
  81
  82         fhr.configure(vec_req, vec_res);
  83
  84         router.append(fhr);
  85
  86         // create an http request
  87         mp::Package pack;
  88
  89         mp::odr odr;
  90         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
  91         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
  92
  93         pack.request() = gdu_req;
  94
  95         //create the http response
  96
  97         /* response, content  */
  98         const char *resp_buf =
  99             /*123456789012345678 */
 100             "HTTP/1.1 200 OK\r\n"
 101             "Content-Length: 50\r\n"
 102             "Content-Type: text/html\r\n"
 103             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 104             "Link: </dir/file.xml>; rel=relative\r\n"
 105             "\r\n"
 106             "<html><head><title>Hello proxy!</title>"
 107             "<style>"
 108             "body {"
 109             "  background-image:url('http://targetsite/images/bg.png');"
 110             "}"
 111             "</style>"
 112             "</head>"
 113             "<script>var jslink=\"http://targetsite/webservice.xml\";</script>"
 114             "<body>"
 115             "<p>Welcome to our website. It doesn't make it easy to get pro"
 116             "xified"
 117             "<a href=\"http://targetsite/page2.html\">"
 118             "  An absolute link</a>"
 119             "<a target=_blank href='http://targetsite/page3.html\">"
 120             "  Another abs link</a>"
 121             "<a href=\"/docs/page4.html\" />"
 122             "</body></html>";
 123
 124         /* response, content  */
 125         const char *resp_result =
 126             /*123456789012345678 */
 127             "HTTP/1.1 200 OK\r\n"
 128             "Content-Length: 50\r\n"
 129             "Content-Type: text/html\r\n"
 130             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 131             "Link: </dir/file.xml>; rel=relative\r\n"
 132             "\r\n"
 133             "<html><head><title>Hello proxy!</title>"
 134             "<style>"
 135             "body {"
 136             "  background-image:url('http://proxyhost/proxypath/targetsite/images/bg.png');"
 137             "}"
 138             "</style>"
 139             "</head>"
 140             "<script>var jslink=\"http://proxyhost/proxypath/targetsite/webservice.xml\";</script>"
 141             "<body>"
 142             "<p>Welcome to our website. It doesn't make it easy to get pro"
 143             "xified"
 144             "<a href=\"http://proxyhost/proxypath/targetsite/page.html\">"
 145             "  An absolute link</a>"
 146             "<a target=_blank href='http://proxyhost/proxypath/targetsite/page3.html\">"
 147             "  Another abs link</a>"
 148             "<a href=\"/docs/page2.html\" />"
 149             "</body></html>";
 150
 151         int r;
 152         Z_GDU *gdu_res;
 153         ODR dec = odr_createmem(ODR_DECODE);
 154         odr_setbuf(dec, (char *) resp_buf, strlen(resp_buf), 0);
 155         r = z_GDU(dec, &gdu_res, 0, 0);
 156
 157         BOOST_CHECK(r == 0);
 158         if (r)
 159         {
 160             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 161         }
 162
 163         pack.response() = gdu_res;
 164
 165         //feed to the router
 166         pack.router(router).move();
 167
 168         //analyze the response
 169         Z_GDU *gdu_res_rew = pack.response().get();
 170         BOOST_CHECK(gdu_res_rew);
 171         BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 172
 173         Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 174         BOOST_CHECK(hres);
 175
 176         //how to compare the buffers:
 177         ODR enc = odr_createmem(ODR_ENCODE);
 178         Z_GDU *zgdu;
 179         Z_GDU(enc, &zgdu, 0, 0);
 180         char *resp_result;
 181         int resp_result_len;
 182         resp_result = odr_getbuf(enc, &resp_result_len, 0);
 183
 184         BOOST_CHECK(memcmp(resp_result, resp_expected, resp_result_len));
 185
 186         odr_destroy(dec);
 187     }
 188     catch (std::exception & e) {
 189         std::cout << e.what();
 190         std::cout << std::endl;
 191         BOOST_CHECK (false);
 192     }
 193 }
 194
 195 BOOST_AUTO_TEST_CASE( test_filter_rewrite_2 )
 196 {
 197     try
 198     {
 199         std::cout << "Running xml config test case" << std::endl;
 200         mp::RouterChain router;
 201         mp::filter::HttpRewrite fhr;
 202
 203         std::string xmlconf =
 204             "<?xml version='1.0'?>\n"
 205             "<filter xmlns='http://indexdata.com/metaproxy'\n"
 206             "        id='rewrite1' type='http_rewrite'>\n"
 207             " <request>\n"
 208             "   <rewrite from='"
 209     "(?&lt;proto>https?://)(?&lt;pxhost>[^ /?#]+)/(?&lt;pxpath>[^ /]+)"
 210     "/(?&lt;host>[^ /]+)(?&lt;path>[^ ]*)'\n"
 211             "            to='${proto}${host}${path}' />\n"
 212             "   <rewrite from='(?:Host: )(.*)'\n"
 213             "            to='Host: ${host}' />\n"
 214             " </request>\n"
 215             " <response>\n"
 216             "   <rewrite from='"
 217     "(?&lt;proto>https?://)(?&lt;host>[^/?# &quot;&apos;>]+)/(?&lt;path>[^  &quot;&apos;>]+)'\n"
 218             "            to='${proto}${pxhost}/${pxpath}/${host}/${path}' />\n"
 219             " </response>\n"
 220             "</filter>\n"
 221         ;
 222
 223         std::cout << xmlconf;
 224
 225         // reading and parsing XML conf
 226         xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
 227         BOOST_CHECK(doc);
 228         xmlNode *root_element = xmlDocGetRootElement(doc);
 229         fhr.configure(root_element, true, "");
 230         xmlFreeDoc(doc);
 231
 232         router.append(fhr);
 233
 234         // create an http request
 235         mp::Package pack;
 236
 237         mp::odr odr;
 238         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
 239         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
 240
 241         pack.request() = gdu_req;
 242
 243         //create the http response
 244
 245         /* response, content  */
 246         const char *resp_buf =
 247             /*123456789012345678 */
 248             "HTTP/1.1 200 OK\r\n"
 249             "Content-Length: 50\r\n"
 250             "Content-Type: text/html\r\n"
 251             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 252             "Link: </dir/file.xml>; rel=relative\r\n"
 253             "\r\n"
 254             "<html><head><title>Hello proxy!</title>"
 255             "<style>"
 256             "body {"
 257             "  background-image:url('http://targetsite/images/bg.png');"
 258             "}"
 259             "</style>"
 260             "</head>"
 261             "<script>var jslink=\"http://targetsite/webservice.xml\";</script>"
 262             "<body>"
 263             "<p>Welcome to our website. It doesn't make it easy to get pro"
 264             "xified"
 265             "<a href=\"http://targetsite/page2.html\">"
 266             "  An absolute link</a>"
 267             "<a target=_blank href='http://targetsite/page3.html\">"
 268             "  Another abs link</a>"
 269             "<a href=\"/docs/page4.html\" />"
 270             "</body></html>";
 271
 272         /* response, content  */
 273         const char *resp_buf_rew =
 274             /*123456789012345678 */
 275             "HTTP/1.1 200 OK\r\n"
 276             "Content-Length: 50\r\n"
 277             "Content-Type: text/html\r\n"
 278             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 279             "Link: </dir/file.xml>; rel=relative\r\n"
 280             "\r\n"
 281             "<html><head><title>Hello proxy!</title>"
 282             "<style>"
 283             "body {"
 284             "  background-image:url('http://proxyhost/proxypath/targetsite/images/bg.png');"
 285             "}"
 286             "</style>"
 287             "</head>"
 288             "<script>var jslink=\"http://proxyhost/proxypath/targetsite/webservice.xml\";</script>"
 289             "<body>"
 290             "<p>Welcome to our website. It doesn't make it easy to get pro"
 291             "xified"
 292             "<a href=\"http://proxyhost/proxypath/targetsite/page.html\">"
 293             "  An absolute link</a>"
 294             "<a target=_blank href='http://proxyhost/proxypath/targetsite/anotherpage.html\">"
 295             "  Another abs link</a>"
 296             "<a href=\"/docs/page2.html\" />"
 297             "</body></html>";
 298
 299         int r;
 300         Z_GDU *gdu_res;
 301         ODR odr2 = odr_createmem(ODR_DECODE);
 302         odr_setbuf(odr2, (char *) resp_buf, strlen(resp_buf), 0);
 303         r = z_GDU(odr2, &gdu_res, 0, 0);
 304
 305         BOOST_CHECK(r == 0);
 306         if (r)
 307         {
 308             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 309         }
 310
 311         pack.response() = gdu_res;
 312
 313         //feed to the router
 314         pack.router(router).move();
 315
 316         //analyze the response
 317         Z_GDU *gdu_res_rew = pack.response().get();
 318         BOOST_CHECK(gdu_res_rew);
 319         BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 320
 321         Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 322         BOOST_CHECK(hres);
 323
 324         //how to compare the buffers:
 325
 326         odr_destroy(odr2);
 327     }
 328     catch (std::exception & e) {
 329         std::cout << e.what();
 330         std::cout << std::endl;
 331         BOOST_CHECK (false);
 332     }
 333 }
 334
 335
 336 /*
 337  * Local variables:
 338  * c-basic-offset: 4
 339  * c-file-style: "Stroustrup"
 340  * indent-tabs-mode: nil
 341  * End:
 342  * vim: shiftwidth=4 tabstop=8 expandtab
 343  */
 344