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