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 BOOST_AUTO_TEST_CASE( test_filter_rewrite_1 )
  43 {
  44     try
  45     {
  46         std::cout << "Running non-xml config test case" << std::endl;
  47         mp::RouterChain router;
  48         mp::filter::HttpRewrite fhr;
  49
  50         std::string xmlconf =
  51             "<?xml version='1.0'?>\n"
  52             "<filter xmlns='http://indexdata.com/metaproxy'\n"
  53             "        id='rewrite1' type='http_rewrite'>\n"
  54             " <request verbose=\"1\">\n"
  55             "  <rule name=\"null\"/>\n"
  56             "  <rule name=\"url\">\n"
  57             "     <rewrite from='"
  58     "(?&lt;proto>https?://)(?&lt;pxhost>[^ /?#]+)/(?&lt;pxpath>[^ /]+)"
  59     "/(?&lt;host>[^ /]+)(?&lt;path>[^ ]*)'\n"
  60             "            to='${proto}${host}${path}' />\n"
  61             "     <rewrite from='(?:Host: )(.*)'\n"
  62             "            to='Host: ${host}' />\n"
  63             "  </rule>\n"
  64             "  <content type=\"headers\">\n"
  65             "    <within header=\"link\" rule=\"null\"/>\n"
  66             "    <within reqline=\"1\" rule=\"url\"/>\n"
  67             "  </content>\n"
  68             " </request>\n"
  69             " <response verbose=\"1\">\n"
  70             "  <rule name=\"null\"/>\n"
  71             "  <rule name=\"url\">\n"
  72             "     <rewrite from='foo' to='bar'/>\n"
  73             "     <rewrite from='^cx' to='cy'/>\n"
  74             "     <rewrite from='"
  75     "(?&lt;proto>https?://)(?&lt;host>[^/?# &quot;&apos;>]+)/(?&lt;path>[^  &quot;&apos;>]+)'\n"
  76             "            to='${proto}${pxhost}/${pxpath}/${host}/${path}' />\n"
  77             "  </rule>\n"
  78             "  <content type=\"headers\">\n"
  79             "    <within header=\"link\" rule=\"url\"/>\n"
  80             "  </content>\n"
  81             "  <content type=\"html\" mime=\"text/xml|text/html\">\n"
  82             "    <within tag=\"body\" attr=\"background\" rule=\"null\"/>\n"
  83             "    <within tag=\"script\" attr=\"#text\" type=\"quoted-literal\" rule=\"url\"/>\n"
  84             "    <within tag=\"style\" attr=\"#text\" rule=\"url\"/>\n"
  85             "    <within attr=\"href|src\" rule=\"url\"/>\n"
  86             "    <within attr=\"onclick\" type=\"quoted-literal\" rule=\"url\"/>\n"
  87             "  </content>\n"
  88             "  <content type=\"quoted-literal\" mime=\".*javascript\">\n"
  89             "    <within rule=\"url\"/>\n"
  90             "  </content>\n"
  91             " </response>\n"
  92             "</filter>\n"
  93         ;
  94
  95         std::cout << xmlconf;
  96
  97         // reading and parsing XML conf
  98         xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
  99         BOOST_CHECK(doc);
 100         xmlNode *root_element = xmlDocGetRootElement(doc);
 101         fhr.configure(root_element, true, "");
 102         xmlFreeDoc(doc);
 103
 104         router.append(fhr);
 105
 106         // create an http request
 107         mp::Package pack;
 108
 109         mp::odr odr;
 110         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
 111         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
 112
 113         pack.request() = gdu_req;
 114
 115         //create the http response
 116
 117         const char *resp_buf =
 118             "HTTP/1.1 200 OK\r\n"
 119             "Content-Type: text/html\r\n"
 120             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 121             "Link: </dir/file.xml>; rel=relative\r\n"
 122             "\r\n"
 123             "<html><head><title>Hello proxy!</title>"
 124             "<style>"
 125             "body {"
 126             "  background-image:url('http://targetsite/images/bg.png');"
 127             "}"
 128             "</style>"
 129             "</head>"
 130             "<script>var jslink=\"http://targetsite/webservice.xml\";"
 131             "var some=\"foo\"; foo=1;"
 132             "</script>"
 133             "<body>"
 134             "<p>Welcome to our website. It doesn't make it easy to get pro"
 135             "xified"
 136             "<a href=\"http://targetsite/page2.html\">"
 137             "  An absolute link</a>"
 138             "<a target=_blank href=\"http://targetsite/page3.html\">"
 139             "  Another abs link</a>"
 140             "<a href=\"/docs/page4.html\" />"
 141             "<A href=\"cxcx\" />"
 142             "<a HREF=\"cx \" onclick=\"foo(&quot;foo&quot;);\"/>"
 143             "</body></html>";
 144
 145         const char *resp_expected =
 146             "HTTP/1.1 200 OK\r\n"
 147             "Content-Length: 605\r\n"
 148             "Content-Type: text/html\r\n"
 149             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 150             "Link: </dir/file.xml>; rel=relative\r\n"
 151             "\r\n"
 152             "<html><head><title>Hello proxy!</title>"
 153             "<style>"
 154             "body {"
 155             "  background-image:url('http://proxyhost/proxypath/targetsite/images/bg.png');"
 156             "}"
 157             "</style>"
 158             "</head>"
 159             "<script>var jslink=\"http://proxyhost/proxypath/targetsite/webservice.xml\";"
 160             "var some=\"bar\"; foo=1;"
 161             "</script>"
 162             "<body>"
 163             "<p>Welcome to our website. It doesn't make it easy to get pro"
 164             "xified"
 165             "<a href=\"http://proxyhost/proxypath/targetsite/page2.html\">"
 166             "  An absolute link</a>"
 167             "<a target=_blank href=\"http://proxyhost/proxypath/targetsite/page3.html\">"
 168             "  Another abs link</a>"
 169             "<a href=\"/docs/page4.html\"/>"
 170             "<A href=\"cycx\"/>"
 171             "<a HREF=\"cy \" onclick=\"foo(&quot;bar&quot;);\"/>"
 172             "</body></html>";
 173
 174         Z_GDU *gdu_res;
 175         mp::odr dec(ODR_DECODE);
 176         mp::odr enc(ODR_ENCODE);
 177         odr_setbuf(dec, (char *) resp_buf, strlen(resp_buf), 0);
 178         int r = z_GDU(dec, &gdu_res, 0, 0);
 179
 180         BOOST_CHECK(r);
 181         if (r)
 182         {
 183             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 184
 185             pack.response() = gdu_res;
 186
 187             //feed to the router
 188             pack.router(router).move();
 189
 190             //analyze the response
 191             Z_GDU *gdu_res_rew = pack.response().get();
 192             BOOST_CHECK(gdu_res_rew);
 193             BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 194
 195             Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 196             BOOST_CHECK(hres);
 197
 198             z_GDU(enc, &gdu_res_rew, 0, 0);
 199             char *resp_result;
 200             int resp_result_len;
 201             resp_result = odr_getbuf(enc, &resp_result_len, 0);
 202
 203             int equal = ((size_t) resp_result_len == strlen(resp_expected))
 204                 && !memcmp(resp_result, resp_expected, resp_result_len);
 205             BOOST_CHECK(equal);
 206
 207             if (!equal)
 208             {
 209                 //compare buffers
 210                 std::cout << "Expected result:\n" << resp_expected << "\n";
 211                 std::cout << "Got result:\n" << "\n";
 212                 fflush(stdout);
 213                 fwrite(resp_result, 1, resp_result_len, stdout);
 214                 fflush(stdout);
 215                 std::cout << "\nGot result buf len: " << resp_result_len
 216                           << "\n";
 217             }
 218         }
 219     }
 220     catch (std::exception & e) {
 221         std::cout << e.what();
 222         std::cout << std::endl;
 223         BOOST_CHECK (false);
 224     }
 225 }
 226
 227
 228 BOOST_AUTO_TEST_CASE( test_filter_rewrite_2 )
 229 {
 230     try
 231     {
 232         std::cout << "Running non-xml config test case" << std::endl;
 233         mp::RouterChain router;
 234         mp::filter::HttpRewrite fhr;
 235
 236         std::string xmlconf =
 237             "<?xml version='1.0'?>\n"
 238             "<filter xmlns='http://indexdata.com/metaproxy'\n"
 239             "        id='rewrite1' type='http_rewrite'>\n"
 240             " <request verbose=\"1\">\n"
 241             "  <rule name=\"null\"/>\n"
 242             "  <rule name=\"url\">\n"
 243             "     <rewrite from='"
 244     "(?&lt;proto>https?://)(?&lt;pxhost>[^ /?#]+)/(?&lt;pxpath>[^ /]+)"
 245     "/(?&lt;host>[^ /]+)(?&lt;path>[^ ]*)'\n"
 246             "            to='${proto}${host}${path}' />\n"
 247             "     <rewrite from='(?:Host: )(.*)'\n"
 248             "            to='Host: ${host}' />\n"
 249             "  </rule>\n"
 250             "  <content type=\"headers\">\n"
 251             "    <within header=\"link\" rule=\"null\"/>\n"
 252             "    <within reqline=\"1\" rule=\"url\"/>\n"
 253             "  </content>\n"
 254             " </request>\n"
 255             " <response verbose=\"1\">\n"
 256             "  <rule name=\"null\"/>\n"
 257             "  <rule name=\"url\">\n"
 258             "     <rewrite from='foo' to='bar'/>\n"
 259             "     <rewrite from='^cx' to='cy'/>\n"
 260             "     <rewrite from='"
 261     "(?&lt;proto>https?://)(?&lt;host>[^/?# &quot;&apos;>]+)/(?&lt;path>[^  &quot;&apos;>]+)'\n"
 262             "            to='${proto}${pxhost}/${pxpath}/${host}/${path}' />\n"
 263             "  </rule>\n"
 264             "  <content type=\"headers\">\n"
 265             "    <within header=\"link\" rule=\"url\"/>\n"
 266             "  </content>\n"
 267             "  <content type=\"quoted-literal\" mime=\".*javascript\">\n"
 268             "    <within rule=\"url\"/>\n"
 269             "  </content>\n"
 270             " </response>\n"
 271             "</filter>\n"
 272         ;
 273
 274         std::cout << xmlconf;
 275
 276         // reading and parsing XML conf
 277         xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
 278         BOOST_CHECK(doc);
 279         xmlNode *root_element = xmlDocGetRootElement(doc);
 280         fhr.configure(root_element, true, "");
 281         xmlFreeDoc(doc);
 282
 283         router.append(fhr);
 284
 285         // create an http request
 286         mp::Package pack;
 287
 288         mp::odr odr;
 289         Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
 290         "http://proxyhost/proxypath/targetsite/page1.html", 0, 1);
 291
 292         pack.request() = gdu_req;
 293
 294         //create the http response
 295
 296         const char *resp_buf =
 297             "HTTP/1.1 200 OK\r\n"
 298             "Content-Type: application/javascript\r\n"
 299             "Link: <http://targetsite/file.xml>; rel=absolute\r\n"
 300             "Link: </dir/file.xml>; rel=relative\r\n"
 301             "\r\n"
 302             "// \"\n"
 303             "my.location = 'http://targetsite/images/bg.png';\n"
 304             "my.other = \"http://targetsite/images/fg.png\";\n"
 305             "my.thrd = \"other\";\n"
 306             "// \"http://targetsite/images/bg.png\n";
 307
 308         const char *resp_expected =
 309             "HTTP/1.1 200 OK\r\n"
 310             "Content-Length: 195\r\n"
 311             "Content-Type: application/javascript\r\n"
 312             "Link: <http://proxyhost/proxypath/targetsite/file.xml>; rel=absolute\r\n"
 313             "Link: </dir/file.xml>; rel=relative\r\n"
 314             "\r\n"
 315             "// \"\n"
 316             "my.location = 'http://proxyhost/proxypath/targetsite/images/bg.png';\n"
 317             "my.other = \"http://proxyhost/proxypath/targetsite/images/fg.png\";\n"
 318             "my.thrd = \"other\";\n"
 319             "// \"http://targetsite/images/bg.png\n";
 320
 321         Z_GDU *gdu_res;
 322         mp::odr dec(ODR_DECODE);
 323         mp::odr enc(ODR_ENCODE);
 324         odr_setbuf(dec, (char *) resp_buf, strlen(resp_buf), 0);
 325         int r = z_GDU(dec, &gdu_res, 0, 0);
 326
 327         BOOST_CHECK(r);
 328         if (r)
 329         {
 330             BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
 331
 332             pack.response() = gdu_res;
 333
 334             //feed to the router
 335             pack.router(router).move();
 336
 337             //analyze the response
 338             Z_GDU *gdu_res_rew = pack.response().get();
 339             BOOST_CHECK(gdu_res_rew);
 340             BOOST_CHECK_EQUAL(gdu_res_rew->which, Z_GDU_HTTP_Response);
 341
 342             Z_HTTP_Response *hres = gdu_res_rew->u.HTTP_Response;
 343             BOOST_CHECK(hres);
 344
 345             z_GDU(enc, &gdu_res_rew, 0, 0);
 346             char *resp_result;
 347             int resp_result_len;
 348             resp_result = odr_getbuf(enc, &resp_result_len, 0);
 349
 350             int equal = ((size_t) resp_result_len == strlen(resp_expected))
 351                 && !memcmp(resp_result, resp_expected, resp_result_len);
 352             BOOST_CHECK(equal);
 353
 354             if (!equal)
 355             {
 356                 //compare buffers
 357                 std::cout << "Expected result:\n" << resp_expected << "\n";
 358                 std::cout << "Got result:\n" << "\n";
 359                 fflush(stdout);
 360                 fwrite(resp_result, 1, resp_result_len, stdout);
 361                 fflush(stdout);
 362                 std::cout << "\nGot result buf len: " << resp_result_len
 363                           << "\n";
 364             }
 365         }
 366     }
 367     catch (std::exception & e) {
 368         std::cout << e.what();
 369         std::cout << std::endl;
 370         BOOST_CHECK (false);
 371     }
 372 }
 373
 374 /*
 375  * Local variables:
 376  * c-basic-offset: 4
 377  * c-file-style: "Stroustrup"
 378  * indent-tabs-mode: nil
 379  * End:
 380  * vim: shiftwidth=4 tabstop=8 expandtab
 381  */
 382