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 verbose=\"1\">\n"
  72             "   <rule name=\"null\"/>\n"
  73             "   <rule name=\"url\">\n"
  74             "     <rewrite from='"
  75     "(?&lt;proto>https?://)(?&lt;pxhost>[^ /?#]+)/(?&lt;pxpath>[^ /]+)"
  76     "/(?&lt;host>[^ /]+)(?&lt;path>[^ ]*)'\n"
  77             "            to='${proto}${host}${path}' />\n"
  78             "     <rewrite from='(?:Host: )(.*)'\n"
  79             "            to='Host: ${host}' />\n"
  80             "   </rule>\n"
  81             "  <within header=\"link\" rule=\"null\"/>\n"
  82             "  <within reqline=\"1\" rule=\"url\"/>\n"
  83             " </request>\n"
  84             " <response verbose=\"1\">\n"
  85             "   <rule name=\"null\"/>\n"
  86             "   <rule name=\"url\">\n"
  87             "     <rewrite from='foo' to='bar'/>\n"
  88             "     <rewrite from='"
  89     "(?&lt;proto>https?://)(?&lt;host>[^/?# &quot;&apos;>]+)/(?&lt;path>[^  &quot;&apos;>]+)'\n"
  90             "            to='${proto}${pxhost}/${pxpath}/${host}/${path}' />\n"
  91             "  </rule>\n"
  92             "  <within header=\"link\" rule=\"url\"/>\n"
  93             "  <within tag=\"body\" attr=\"background\" rule=\"null\"/>\n"
  94             "  <within tag=\"script\" attr=\"#text\" rule=\"url\"/>\n"
  95             "  <within tag=\"style\" attr=\"#text\" rule=\"url\"/>\n"
  96             "  <within attr=\"href,src\" rule=\"url\"/>\n"
  97             " </response>\n"
  98             "</filter>\n"
  99         ;
 100
 101         std::cout << xmlconf;
 102
 103         // reading and parsing XML conf
 104         xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
 105         BOOST_CHECK(doc);
 106         xmlNode *root_element = xmlDocGetRootElement(doc);
 107         fhr.configure(root_element, true, "");
 108         xmlFreeDoc(doc);
 109
 110         router.append(fhr);
 111
 112         // create an http request
 113         mp::Package pack;
 114
 115         mp::odr odr;
 116         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
 117         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
 118
 119         pack.request() = gdu_req;
 120
 121         //create the http response
 122
 123         const char *resp_buf =
 124             "HTTP/1.1 200 OK\r\n"
 125             "Content-Length: 441\r\n"
 126             "Content-Type: text/html\r\n"
 127             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 128             "Link: </dir/file.xml>; rel=relative\r\n"
 129             "\r\n"
 130             "<html><head><title>Hello proxy!</title>"
 131             "<style>"
 132             "body {"
 133             "  background-image:url('http://targetsite/images/bg.png');"
 134             "}"
 135             "</style>"
 136             "</head>"
 137             "<script>var jslink=\"http://targetsite/webservice.xml\";"
 138             "var some=foo;"
 139             "</script>"
 140             "<body>"
 141             "<p>Welcome to our website. It doesn't make it easy to get pro"
 142             "xified"
 143             "<a href=\"http://targetsite/page2.html\">"
 144             "  An absolute link</a>"
 145             "<a target=_blank href=\"http://targetsite/page3.html\">"
 146             "  Another abs link</a>"
 147             "<a href=\"/docs/page4.html\" />"
 148             "</body></html>";
 149
 150         const char *resp_expected =
 151             "HTTP/1.1 200 OK\r\n"
 152             "Content-Length: 533\r\n"
 153             "Content-Type: text/html\r\n"
 154             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 155             "Link: </dir/file.xml>; rel=relative\r\n"
 156             "\r\n"
 157             "<html><head><title>Hello proxy!</title>"
 158             "<style>"
 159             "body {"
 160             "  background-image:url('http://proxyhost/proxypath/targetsite/images/bg.png');"
 161             "}"
 162             "</style>"
 163             "</head>"
 164             "<script>var jslink=\"http://proxyhost/proxypath/targetsite/webservice.xml\";"
 165             "var some=bar;"
 166             "</script>"
 167             "<body>"
 168             "<p>Welcome to our website. It doesn't make it easy to get pro"
 169             "xified"
 170             "<a href=\"http://proxyhost/proxypath/targetsite/page2.html\">"
 171             "  An absolute link</a>"
 172             "<a target=_blank href=\"http://proxyhost/proxypath/targetsite/page3.html\">"
 173             "  Another abs link</a>"
 174             "<a href=\"/docs/page4.html\"/>"
 175             "</body></html>";
 176
 177         int r;
 178         Z_GDU *gdu_res;
 179         ODR dec = odr_createmem(ODR_DECODE);
 180         odr_setbuf(dec, (char *) resp_buf, strlen(resp_buf), 0);
 181         r = z_GDU(dec, &gdu_res, 0, 0);
 182
 183         BOOST_CHECK(r);
 184         if (r)
 185         {
 186             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 187         }
 188
 189         pack.response() = gdu_res;
 190
 191         //feed to the router
 192         pack.router(router).move();
 193
 194         //analyze the response
 195         Z_GDU *gdu_res_rew = pack.response().get();
 196         BOOST_CHECK(gdu_res_rew);
 197         BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 198
 199         Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 200         BOOST_CHECK(hres);
 201
 202         //compare buffers
 203         std::cout << "Expected result:\n" << resp_expected << std::endl;
 204
 205         ODR enc = odr_createmem(ODR_ENCODE);
 206         z_GDU(enc, &gdu_res_rew, 0, 0);
 207         char *resp_result;
 208         int resp_result_len;
 209         resp_result = odr_getbuf(enc, &resp_result_len, 0);
 210
 211         BOOST_CHECK(resp_result);
 212         BOOST_CHECK_EQUAL((size_t) resp_result_len, strlen(resp_expected));
 213
 214         std::cout << "Rewritten result:\n" << std::endl;
 215         fflush(stdout);
 216         fwrite(resp_result, 1, resp_result_len, stdout);
 217         fflush(stdout);
 218         std::cout << "\nRewritten result buf len: " << resp_result_len
 219             << std::endl;
 220
 221         BOOST_CHECK(memcmp(resp_result, resp_expected, resp_result_len) == 0);
 222
 223         odr_destroy(dec);
 224         odr_destroy(enc);
 225     }
 226     catch (std::exception & e) {
 227         std::cout << e.what();
 228         std::cout << std::endl;
 229         BOOST_CHECK (false);
 230     }
 231 }
 232
 233
 234 /*
 235  * Local variables:
 236  * c-basic-offset: 4
 237  * c-file-style: "Stroustrup"
 238  * indent-tabs-mode: nil
 239  * End:
 240  * vim: shiftwidth=4 tabstop=8 expandtab
 241  */
 242