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             "   <rule name=\"url\">\n"
  73             "     <rewrite from='"
  74     "(?&lt;proto>https?://)(?&lt;pxhost>[^ /?#]+)/(?&lt;pxpath>[^ /]+)"
  75     "/(?&lt;host>[^ /]+)(?&lt;path>[^ ]*)'\n"
  76             "            to='${proto}${host}${path}' />\n"
  77             "     <rewrite from='(?:Host: )(.*)'\n"
  78             "            to='Host: ${host}' />\n"
  79             "   </rule>\n"
  80             "   <within rule=\"url\"/>\n"
  81             " </request>\n"
  82             " <response>\n"
  83             "   <rule name=\"url\">\n"
  84             "     <rewrite from='"
  85     "(?&lt;proto>https?://)(?&lt;host>[^/?# &quot;&apos;>]+)/(?&lt;path>[^  &quot;&apos;>]+)'\n"
  86             "            to='${proto}${pxhost}/${pxpath}/${host}/${path}' />\n"
  87             "  </rule>\n"
  88             "  <within rule=\"url\"/>\n"
  89             " </response>\n"
  90             "</filter>\n"
  91         ;
  92
  93         std::cout << xmlconf;
  94
  95         // reading and parsing XML conf
  96         xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
  97         BOOST_CHECK(doc);
  98         xmlNode *root_element = xmlDocGetRootElement(doc);
  99         fhr.configure(root_element, true, "");
 100         xmlFreeDoc(doc);
 101
 102         router.append(fhr);
 103
 104         // create an http request
 105         mp::Package pack;
 106
 107         mp::odr odr;
 108         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
 109         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
 110
 111         pack.request() = gdu_req;
 112
 113         //create the http response
 114
 115         const char *resp_buf =
 116             "HTTP/1.1 200 OK\r\n"
 117             "Content-Length: 441\r\n"
 118             "Content-Type: text/html\r\n"
 119             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 120             "Link: </dir/file.xml>; rel=relative\r\n"
 121             "\r\n"
 122             "<html><head><title>Hello proxy!</title>"
 123             "<style>"
 124             "body {"
 125             "  background-image:url('http://targetsite/images/bg.png');"
 126             "}"
 127             "</style>"
 128             "</head>"
 129             "<script>var jslink=\"http://targetsite/webservice.xml\";</script>"
 130             "<body>"
 131             "<p>Welcome to our website. It doesn't make it easy to get pro"
 132             "xified"
 133             "<a href=\"http://targetsite/page2.html\">"
 134             "  An absolute link</a>"
 135             "<a target=_blank href='http://targetsite/page3.html\">"
 136             "  Another abs link</a>"
 137             "<a href=\"/docs/page4.html\" />"
 138             "</body></html>";
 139
 140         const char *resp_expected =
 141             "HTTP/1.1 200 OK\r\n"
 142             "Content-Length: 521\r\n"
 143             "Content-Type: text/html\r\n"
 144             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 145             "Link: </dir/file.xml>; rel=relative\r\n"
 146             "\r\n"
 147             "<html><head><title>Hello proxy!</title>"
 148             "<style>"
 149             "body {"
 150             "  background-image:url('http://proxyhost/proxypath/targetsite/images/bg.png');"
 151             "}"
 152             "</style>"
 153             "</head>"
 154             "<script>var jslink=\"http://proxyhost/proxypath/targetsite/webservice.xml\";</script>"
 155             "<body>"
 156             "<p>Welcome to our website. It doesn't make it easy to get pro"
 157             "xified"
 158             "<a href=\"http://proxyhost/proxypath/targetsite/page2.html\">"
 159             "  An absolute link</a>"
 160             "<a target=_blank href='http://proxyhost/proxypath/targetsite/page3.html\">"
 161             "  Another abs link</a>"
 162             "<a href=\"/docs/page4.html\" />"
 163             "</body></html>";
 164
 165         int r;
 166         Z_GDU *gdu_res;
 167         ODR dec = odr_createmem(ODR_DECODE);
 168         odr_setbuf(dec, (char *) resp_buf, strlen(resp_buf), 0);
 169         r = z_GDU(dec, &gdu_res, 0, 0);
 170
 171         BOOST_CHECK(r);
 172         if (r)
 173         {
 174             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 175         }
 176
 177         pack.response() = gdu_res;
 178
 179         //feed to the router
 180         pack.router(router).move();
 181
 182         //analyze the response
 183         Z_GDU *gdu_res_rew = pack.response().get();
 184         BOOST_CHECK(gdu_res_rew);
 185         BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 186
 187         Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 188         BOOST_CHECK(hres);
 189
 190         //compare buffers
 191         std::cout << "Expected result:\n" << resp_expected << std::endl;
 192
 193         ODR enc = odr_createmem(ODR_ENCODE);
 194         z_GDU(enc, &gdu_res_rew, 0, 0);
 195         char *resp_result;
 196         int resp_result_len;
 197         resp_result = odr_getbuf(enc, &resp_result_len, 0);
 198
 199         BOOST_CHECK(resp_result);
 200         BOOST_CHECK_EQUAL((size_t) resp_result_len, strlen(resp_expected));
 201
 202         std::cout << "Rewriten result:\n" << resp_result << std::endl;
 203         std::cout << "Rewriten result buf len: " << resp_result_len
 204             << std::endl;
 205
 206         BOOST_CHECK(memcmp(resp_result, resp_expected, resp_result_len) == 0);
 207
 208         odr_destroy(dec);
 209         odr_destroy(enc);
 210     }
 211     catch (std::exception & e) {
 212         std::cout << e.what();
 213         std::cout << std::endl;
 214         BOOST_CHECK (false);
 215     }
 216 }
 217
 218 /*
 219 BOOST_AUTO_TEST_CASE( test_filter_rewrite_2 )
 220 {
 221     try
 222     {
 223         std::cout << "Running xml config test case" << std::endl;
 224         mp::RouterChain router;
 225         mp::filter::HttpRewrite fhr;
 226
 227         std::string xmlconf =
 228             "<?xml version='1.0'?>\n"
 229             "<filter xmlns='http://indexdata.com/metaproxy'\n"
 230             "        id='rewrite1' type='http_rewrite'>\n"
 231             " <request>\n"
 232             "   <rewrite from='"
 233     "(?&lt;proto>https?://)(?&lt;pxhost>[^ /?#]+)/(?&lt;pxpath>[^ /]+)"
 234     "/(?&lt;host>[^ /]+)(?&lt;path>[^ ]*)'\n"
 235             "            to='${proto}${host}${path}' />\n"
 236             "   <rewrite from='(?:Host: )(.*)'\n"
 237             "            to='Host: ${host}' />\n"
 238             " </request>\n"
 239             " <response>\n"
 240             "   <rewrite from='"
 241     "(?&lt;proto>https?://)(?&lt;host>[^/?# &quot;&apos;>]+)/(?&lt;path>[^  &quot;&apos;>]+)'\n"
 242             "            to='${proto}${pxhost}/${pxpath}/${host}/${path}' />\n"
 243             " </response>\n"
 244             "</filter>\n"
 245         ;
 246
 247         std::cout << xmlconf;
 248
 249         // reading and parsing XML conf
 250         xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
 251         BOOST_CHECK(doc);
 252         xmlNode *root_element = xmlDocGetRootElement(doc);
 253         fhr.configure(root_element, true, "");
 254         xmlFreeDoc(doc);
 255
 256         router.append(fhr);
 257
 258         // create an http request
 259         mp::Package pack;
 260
 261         mp::odr odr;
 262         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
 263         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
 264
 265         pack.request() = gdu_req;
 266
 267         //create the http response
 268
 269         const char *resp_buf =
 270             "HTTP/1.1 200 OK\r\n"
 271             "Content-Length: 50\r\n"
 272             "Content-Type: text/html\r\n"
 273             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 274             "Link: </dir/file.xml>; rel=relative\r\n"
 275             "\r\n"
 276             "<html><head><title>Hello proxy!</title>"
 277             "<style>"
 278             "body {"
 279             "  background-image:url('http://targetsite/images/bg.png');"
 280             "}"
 281             "</style>"
 282             "</head>"
 283             "<script>var jslink=\"http://targetsite/webservice.xml\";</script>"
 284             "<body>"
 285             "<p>Welcome to our website. It doesn't make it easy to get pro"
 286             "xified"
 287             "<a href=\"http://targetsite/page2.html\">"
 288             "  An absolute link</a>"
 289             "<a target=_blank href='http://targetsite/page3.html\">"
 290             "  Another abs link</a>"
 291             "<a href=\"/docs/page4.html\" />"
 292             "</body></html>";
 293
 294         const char *resp_buf_rew =
 295             "HTTP/1.1 200 OK\r\n"
 296             "Content-Length: 50\r\n"
 297             "Content-Type: text/html\r\n"
 298             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 299             "Link: </dir/file.xml>; rel=relative\r\n"
 300             "\r\n"
 301             "<html><head><title>Hello proxy!</title>"
 302             "<style>"
 303             "body {"
 304             "  background-image:url('http://proxyhost/proxypath/targetsite/images/bg.png');"
 305             "}"
 306             "</style>"
 307             "</head>"
 308             "<script>var jslink=\"http://proxyhost/proxypath/targetsite/webservice.xml\";</script>"
 309             "<body>"
 310             "<p>Welcome to our website. It doesn't make it easy to get pro"
 311             "xified"
 312             "<a href=\"http://proxyhost/proxypath/targetsite/page.html\">"
 313             "  An absolute link</a>"
 314             "<a target=_blank href='http://proxyhost/proxypath/targetsite/anotherpage.html\">"
 315             "  Another abs link</a>"
 316             "<a href=\"/docs/page2.html\" />"
 317             "</body></html>";
 318
 319         int r;
 320         Z_GDU *gdu_res;
 321         ODR odr2 = odr_createmem(ODR_DECODE);
 322         odr_setbuf(odr2, (char *) resp_buf, strlen(resp_buf), 0);
 323         r = z_GDU(odr2, &gdu_res, 0, 0);
 324
 325         BOOST_CHECK(r == 0);
 326         if (r)
 327         {
 328             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 329         }
 330
 331         pack.response() = gdu_res;
 332
 333         //feed to the router
 334         pack.router(router).move();
 335
 336         //analyze the response
 337         Z_GDU *gdu_res_rew = pack.response().get();
 338         BOOST_CHECK(gdu_res_rew);
 339         BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 340
 341         Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 342         BOOST_CHECK(hres);
 343
 344         //how to compare the buffers:
 345
 346         odr_destroy(odr2);
 347     }
 348     catch (std::exception & e) {
 349         std::cout << e.what();
 350         std::cout << std::endl;
 351         BOOST_CHECK (false);
 352     }
 353 }
 354 */
 355
 356 /*
 357  * Local variables:
 358  * c-basic-offset: 4
 359  * c-file-style: "Stroustrup"
 360  * indent-tabs-mode: nil
 361  * End:
 362  * vim: shiftwidth=4 tabstop=8 expandtab
 363  */
 364