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