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 <metaproxy/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  * The global testconfig is commented out, as it won't even compile
  43  * on old Centos5 machines
  44 struct TestConfig {
  45     TestConfig()
  46     {
  47         std::cout << "global setup\n";
  48         yaz_log_init_level(YLOG_ALL);
  49     }
  50     ~TestConfig()
  51     {
  52         std::cout << "global teardown\n";
  53     }
  54 };
  55
  56 BOOST_GLOBAL_FIXTURE( TestConfig );
  57 */
  58
  59 BOOST_AUTO_TEST_CASE( test_filter_rewrite_1 )
  60 {
  61     try
  62     {
  63         std::cout << "Running non-xml config test case" << std::endl;
  64         mp::RouterChain router;
  65         mp::filter::HttpRewrite fhr;
  66
  67         std::string xmlconf =
  68             "<?xml version='1.0'?>\n"
  69             "<filter xmlns='http://indexdata.com/metaproxy'\n"
  70             "        id='rewrite1' type='http_rewrite'>\n"
  71             " <request>\n"
  72             "   <rewrite from='"
  73     "(?&lt;proto>https?://)(?&lt;pxhost>[^ /?#]+)/(?&lt;pxpath>[^ /]+)"
  74     "/(?&lt;host>[^ /]+)(?&lt;path>[^ ]*)'\n"
  75             "            to='${proto}${host}${path}' />\n"
  76             "   <rewrite from='(?:Host: )(.*)'\n"
  77             "            to='Host: ${host}' />\n"
  78             " </request>\n"
  79             " <response>\n"
  80             "   <rewrite from='"
  81     "(?&lt;proto>https?://)(?&lt;host>[^/?# &quot;&apos;>]+)/(?&lt;path>[^  &quot;&apos;>]+)'\n"
  82             "            to='${proto}${pxhost}/${pxpath}/${host}/${path}' />\n"
  83             " </response>\n"
  84             "</filter>\n"
  85         ;
  86
  87         std::cout << xmlconf;
  88
  89         // reading and parsing XML conf
  90         xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
  91         BOOST_CHECK(doc);
  92         xmlNode *root_element = xmlDocGetRootElement(doc);
  93         fhr.configure(root_element, true, "");
  94         xmlFreeDoc(doc);
  95
  96         router.append(fhr);
  97
  98         // create an http request
  99         mp::Package pack;
 100
 101         mp::odr odr;
 102         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
 103         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
 104
 105         pack.request() = gdu_req;
 106
 107         //create the http response
 108
 109         const char *resp_buf =
 110             "HTTP/1.1 200 OK\r\n"
 111             "Content-Length: 441\r\n"
 112             "Content-Type: text/html\r\n"
 113             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 114             "Link: </dir/file.xml>; rel=relative\r\n"
 115             "\r\n"
 116             "<html><head><title>Hello proxy!</title>"
 117             "<style>"
 118             "body {"
 119             "  background-image:url('http://targetsite/images/bg.png');"
 120             "}"
 121             "</style>"
 122             "</head>"
 123             "<script>var jslink=\"http://targetsite/webservice.xml\";</script>"
 124             "<body>"
 125             "<p>Welcome to our website. It doesn't make it easy to get pro"
 126             "xified"
 127             "<a href=\"http://targetsite/page2.html\">"
 128             "  An absolute link</a>"
 129             "<a target=_blank href='http://targetsite/page3.html\">"
 130             "  Another abs link</a>"
 131             "<a href=\"/docs/page4.html\" />"
 132             "</body></html>";
 133
 134         const char *resp_expected =
 135             "HTTP/1.1 200 OK\r\n"
 136             "Content-Length: 521\r\n"
 137             "Content-Type: text/html\r\n"
 138             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 139             "Link: </dir/file.xml>; rel=relative\r\n"
 140             "\r\n"
 141             "<html><head><title>Hello proxy!</title>"
 142             "<style>"
 143             "body {"
 144             "  background-image:url('http://proxyhost/proxypath/targetsite/images/bg.png');"
 145             "}"
 146             "</style>"
 147             "</head>"
 148             "<script>var jslink=\"http://proxyhost/proxypath/targetsite/webservice.xml\";</script>"
 149             "<body>"
 150             "<p>Welcome to our website. It doesn't make it easy to get pro"
 151             "xified"
 152             "<a href=\"http://proxyhost/proxypath/targetsite/page2.html\">"
 153             "  An absolute link</a>"
 154             "<a target=_blank href='http://proxyhost/proxypath/targetsite/page3.html\">"
 155             "  Another abs link</a>"
 156             "<a href=\"/docs/page4.html\" />"
 157             "</body></html>";
 158
 159         int r;
 160         Z_GDU *gdu_res;
 161         ODR dec = odr_createmem(ODR_DECODE);
 162         odr_setbuf(dec, (char *) resp_buf, strlen(resp_buf), 0);
 163         r = z_GDU(dec, &gdu_res, 0, 0);
 164
 165         BOOST_CHECK(r);
 166         if (r)
 167         {
 168             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 169         }
 170
 171         pack.response() = gdu_res;
 172
 173         //feed to the router
 174         pack.router(router).move();
 175
 176         //analyze the response
 177         Z_GDU *gdu_res_rew = pack.response().get();
 178         BOOST_CHECK(gdu_res_rew);
 179         BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 180
 181         Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 182         BOOST_CHECK(hres);
 183
 184         //compare buffers
 185         std::cout << "Expected result:\n" << resp_expected << std::endl;
 186
 187         ODR enc = odr_createmem(ODR_ENCODE);
 188         z_GDU(enc, &gdu_res_rew, 0, 0);
 189         char *resp_result;
 190         int resp_result_len;
 191         resp_result = odr_getbuf(enc, &resp_result_len, 0);
 192
 193         BOOST_CHECK(resp_result);
 194         BOOST_CHECK_EQUAL(resp_result_len, strlen(resp_expected));
 195
 196         std::cout << "Rewriten result:\n" << resp_result << std::endl;
 197         std::cout << "Rewriten result buf len: " << resp_result_len
 198             << std::endl;
 199
 200         BOOST_CHECK(memcmp(resp_result, resp_expected, resp_result_len) == 0);
 201
 202         odr_destroy(dec);
 203         odr_destroy(enc);
 204     }
 205     catch (std::exception & e) {
 206         std::cout << e.what();
 207         std::cout << std::endl;
 208         BOOST_CHECK (false);
 209     }
 210 }
 211
 212 /*
 213 BOOST_AUTO_TEST_CASE( test_filter_rewrite_2 )
 214 {
 215     try
 216     {
 217         std::cout << "Running xml config test case" << std::endl;
 218         mp::RouterChain router;
 219         mp::filter::HttpRewrite fhr;
 220
 221         std::string xmlconf =
 222             "<?xml version='1.0'?>\n"
 223             "<filter xmlns='http://indexdata.com/metaproxy'\n"
 224             "        id='rewrite1' type='http_rewrite'>\n"
 225             " <request>\n"
 226             "   <rewrite from='"
 227     "(?&lt;proto>https?://)(?&lt;pxhost>[^ /?#]+)/(?&lt;pxpath>[^ /]+)"
 228     "/(?&lt;host>[^ /]+)(?&lt;path>[^ ]*)'\n"
 229             "            to='${proto}${host}${path}' />\n"
 230             "   <rewrite from='(?:Host: )(.*)'\n"
 231             "            to='Host: ${host}' />\n"
 232             " </request>\n"
 233             " <response>\n"
 234             "   <rewrite from='"
 235     "(?&lt;proto>https?://)(?&lt;host>[^/?# &quot;&apos;>]+)/(?&lt;path>[^  &quot;&apos;>]+)'\n"
 236             "            to='${proto}${pxhost}/${pxpath}/${host}/${path}' />\n"
 237             " </response>\n"
 238             "</filter>\n"
 239         ;
 240
 241         std::cout << xmlconf;
 242
 243         // reading and parsing XML conf
 244         xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
 245         BOOST_CHECK(doc);
 246         xmlNode *root_element = xmlDocGetRootElement(doc);
 247         fhr.configure(root_element, true, "");
 248         xmlFreeDoc(doc);
 249
 250         router.append(fhr);
 251
 252         // create an http request
 253         mp::Package pack;
 254
 255         mp::odr odr;
 256         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
 257         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
 258
 259         pack.request() = gdu_req;
 260
 261         //create the http response
 262
 263         const char *resp_buf =
 264             "HTTP/1.1 200 OK\r\n"
 265             "Content-Length: 50\r\n"
 266             "Content-Type: text/html\r\n"
 267             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 268             "Link: </dir/file.xml>; rel=relative\r\n"
 269             "\r\n"
 270             "<html><head><title>Hello proxy!</title>"
 271             "<style>"
 272             "body {"
 273             "  background-image:url('http://targetsite/images/bg.png');"
 274             "}"
 275             "</style>"
 276             "</head>"
 277             "<script>var jslink=\"http://targetsite/webservice.xml\";</script>"
 278             "<body>"
 279             "<p>Welcome to our website. It doesn't make it easy to get pro"
 280             "xified"
 281             "<a href=\"http://targetsite/page2.html\">"
 282             "  An absolute link</a>"
 283             "<a target=_blank href='http://targetsite/page3.html\">"
 284             "  Another abs link</a>"
 285             "<a href=\"/docs/page4.html\" />"
 286             "</body></html>";
 287
 288         const char *resp_buf_rew =
 289             "HTTP/1.1 200 OK\r\n"
 290             "Content-Length: 50\r\n"
 291             "Content-Type: text/html\r\n"
 292             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 293             "Link: </dir/file.xml>; rel=relative\r\n"
 294             "\r\n"
 295             "<html><head><title>Hello proxy!</title>"
 296             "<style>"
 297             "body {"
 298             "  background-image:url('http://proxyhost/proxypath/targetsite/images/bg.png');"
 299             "}"
 300             "</style>"
 301             "</head>"
 302             "<script>var jslink=\"http://proxyhost/proxypath/targetsite/webservice.xml\";</script>"
 303             "<body>"
 304             "<p>Welcome to our website. It doesn't make it easy to get pro"
 305             "xified"
 306             "<a href=\"http://proxyhost/proxypath/targetsite/page.html\">"
 307             "  An absolute link</a>"
 308             "<a target=_blank href='http://proxyhost/proxypath/targetsite/anotherpage.html\">"
 309             "  Another abs link</a>"
 310             "<a href=\"/docs/page2.html\" />"
 311             "</body></html>";
 312
 313         int r;
 314         Z_GDU *gdu_res;
 315         ODR odr2 = odr_createmem(ODR_DECODE);
 316         odr_setbuf(odr2, (char *) resp_buf, strlen(resp_buf), 0);
 317         r = z_GDU(odr2, &gdu_res, 0, 0);
 318
 319         BOOST_CHECK(r == 0);
 320         if (r)
 321         {
 322             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 323         }
 324
 325         pack.response() = gdu_res;
 326
 327         //feed to the router
 328         pack.router(router).move();
 329
 330         //analyze the response
 331         Z_GDU *gdu_res_rew = pack.response().get();
 332         BOOST_CHECK(gdu_res_rew);
 333         BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 334
 335         Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 336         BOOST_CHECK(hres);
 337
 338         //how to compare the buffers:
 339
 340         odr_destroy(odr2);
 341     }
 342     catch (std::exception & e) {
 343         std::cout << e.what();
 344         std::cout << std::endl;
 345         BOOST_CHECK (false);
 346     }
 347 }
 348 */
 349
 350 /*
 351  * Local variables:
 352  * c-basic-offset: 4
 353  * c-file-style: "Stroustrup"
 354  * indent-tabs-mode: nil
 355  * End:
 356  * vim: shiftwidth=4 tabstop=8 expandtab
 357  */
 358