#include <stdexcept>
#include "filter_http_client.hpp"
+#include "filter_http_rewrite.hpp"
#include <metaproxy/util.hpp>
#include "router_chain.hpp"
#include <metaproxy/package.hpp>
#include <boost/regex.hpp>
#include <boost/lexical_cast.hpp>
+#include <yaz/log.h>
+
#define BOOST_AUTO_TEST_MAIN
#define BOOST_TEST_DYN_LINK
using namespace boost::unit_test;
namespace mp = metaproxy_1;
-class FilterHeaderRewrite: public mp::filter::Base {
-public:
- void process(mp::Package & package) const {
- Z_GDU *gdu = package.request().get();
- //map of request/response vars
- std::map<std::string, std::string> vars;
- //we have an http req
- if (gdu && gdu->which == Z_GDU_HTTP_Request)
- {
- Z_HTTP_Request *hreq = gdu->u.HTTP_Request;
- mp::odr o;
- //rewrite the request line
- std::string path;
- if (strstr(hreq->path, "http://") == hreq->path)
- {
- std::cout << "Path in the method line is absolute, "
- "possibly a proxy request\n";
- path += hreq->path;
- }
- else
- {
- path += z_HTTP_header_lookup(hreq->headers, "Host");
- path += hreq->path;
- }
- std::cout << "Proxy request URL is " << path << std::endl;
- std::string npath =
- search_replace(vars, path, req_uri_rx, req_uri_pat);
- std::cout << "Resp request URL is " << npath << std::endl;
- if (!npath.empty())
- hreq->path = odr_strdup(o, npath.c_str());
- std::cout << ">> Request headers" << std::endl;
- //iterate headers
- for (Z_HTTP_Header *header = hreq->headers;
- header != 0;
- header = header->next)
- {
- std::cout << header->name << ": " << header->value << std::endl;
- std::string out = search_replace(vars,
- std::string(header->value),
- req_uri_rx, req_uri_pat);
- if (!out.empty())
- header->value = odr_strdup(o, out.c_str());
- }
- package.request() = gdu;
- }
- package.move();
- gdu = package.response().get();
- if (gdu && gdu->which == Z_GDU_HTTP_Response)
- {
- std::cout << "<< Respose headers" << std::endl;
- Z_HTTP_Response *hr = gdu->u.HTTP_Response;
- mp::odr o;
- //iterate headers
- for (Z_HTTP_Header *header = hr->headers;
- header != 0;
- header = header->next)
- {
- std::cout << header->name << ": " << header->value << std::endl;
- std::string out = search_replace(vars,
- std::string(header->value),
- resp_uri_rx, resp_uri_pat);
- if (!out.empty())
- header->value = odr_strdup(o, out.c_str());
- }
- package.response() = gdu;
- }
- };
-
- void configure(const xmlNode* ptr, bool test_only, const char *path) {};
-
- const std::string search_replace(
- std::map<std::string, std::string> & vars,
- const std::string txt,
- const std::string & uri_re,
- const std::string & uri_pat) const
- {
- //exec regex against value
- boost::regex re(uri_re);
- boost::smatch what;
- std::string::const_iterator start, end;
- start = txt.begin();
- end = txt.end();
- std::string out;
- while (regex_search(start, end, what, re)) //find next full match
- {
- unsigned i;
- for (i = 1; i < what.size(); ++i)
- {
- //check if the group is named
- std::map<int, std::string>::const_iterator it
- = groups_by_num.find(i);
- if (it != groups_by_num.end())
- { //it is
- std::string name = it->second;
- vars[name] = what[i];
- }
-
- }
- //prepare replacement string
- std::string rvalue = sub_vars(uri_pat, vars);
- //rewrite value
- std::string rhvalue = what.prefix().str()
- + rvalue + what.suffix().str();
- std::cout << "! Rewritten '"+what.str(0)+"' to '"+rvalue+"'\n";
- out += rhvalue;
- start = what[0].second; //move search forward
- }
- return out;
- };
-
- static void parse_groups(const std::string & str,
- std::map<int, std::string> & groups_bynum,
- std::map<std::string, int> & groups_byname)
+struct TestConfig {
+ TestConfig()
{
- int gnum = 0;
- bool esc = false;
- for (int i = 0; i < str.size(); ++i)
- {
- if (!esc && str[i] == '\\')
- {
- esc = true;
- continue;
- }
- if (!esc && str[i] == '(') //group starts
- {
- gnum++;
- if (i+1 < str.size() && str[i+1] == '?') //group with attrs
- {
- i++;
- if (i+1 < str.size() && str[i+1] == ':') //non-capturing
- {
- if (gnum > 0) gnum--;
- i++;
- continue;
- }
- if (i+1 < str.size() && str[i+1] == 'P') //optional, python
- i++;
- if (i+1 < str.size() && str[i+1] == '<') //named
- {
- i++;
- std::string gname;
- bool term = false;
- while (++i < str.size())
- {
- if (str[i] == '>') { term = true; break; }
- if (!isalnum(str[i]))
- throw mp::filter::FilterException
- ("Only alphanumeric chars allowed, found "
- " in '"
- + str
- + "' at "
- + boost::lexical_cast<std::string>(i));
- gname += str[i];
- }
- if (!term)
- throw mp::filter::FilterException
- ("Unterminated group name '" + gname
- + " in '" + str +"'");
- groups_bynum[gnum] = gname;
- groups_byname[gname] = gnum;
- std::cout << "Found named group '" << gname
- << "' at $" << gnum << std::endl;
- }
- }
- }
- esc = false;
- }
+ std::cout << "global setup\n";
+ yaz_log_init_level(YLOG_ALL);
}
-
- static std::string sub_vars (const std::string & in,
- const std::map<std::string, std::string> & vars)
- {
- std::string out;
- bool esc = false;
- for (int i = 0; i < in.size(); ++i)
- {
- if (!esc && in[i] == '\\')
- {
- esc = true;
- continue;
- }
- if (!esc && in[i] == '$') //var
- {
- if (i+1 < in.size() && in[i+1] == '{') //ref prefix
- {
- ++i;
- std::string name;
- bool term = false;
- while (++i < in.size())
- {
- if (in[i] == '}') { term = true; break; }
- name += in[i];
- }
- if (!term) throw mp::filter::FilterException
- ("Unterminated var ref in '"+in+"' at "
- + boost::lexical_cast<std::string>(i));
- std::map<std::string, std::string>::const_iterator it
- = vars.find(name);
- if (it != vars.end())
- out += it->second;
- }
- else
- {
- throw mp::filter::FilterException
- ("Malformed or trimmed var ref in '"
- +in+"' at "+boost::lexical_cast<std::string>(i));
- }
- continue;
- }
- //passthru
- out += in[i];
- esc = false;
- }
- return out;
+ ~TestConfig()
+ {
+ std::cout << "global teardown\n";
}
-
- void configure(
- const std::string & req_uri_rx,
- const std::string & req_uri_pat,
- const std::string & resp_uri_rx,
- const std::string & resp_uri_pat)
- {
- this->req_uri_rx = req_uri_rx;
- this->req_uri_pat = req_uri_pat;
- //pick up names
- parse_groups(req_uri_rx, groups_by_num, groups_by_name);
- this->resp_uri_rx = resp_uri_rx;
- this->resp_uri_pat = resp_uri_pat;
- };
-
-private:
- std::map<std::string, std::string> vars;
- std::string req_uri_rx;
- std::string resp_uri_rx;
- std::string req_uri_pat;
- std::string resp_uri_pat;
- std::map<int, std::string> groups_by_num;
- std::map<std::string, int> groups_by_name;
-
};
+BOOST_GLOBAL_FIXTURE( TestConfig );
BOOST_AUTO_TEST_CASE( test_filter_rewrite_1 )
{
try
{
- FilterHeaderRewrite fhr;
+ mp::filter::HttpRewrite fhr;
}
catch ( ... ) {
BOOST_CHECK (false);
{
mp::RouterChain router;
- FilterHeaderRewrite fhr;
- fhr.configure(
- "(?:http\\:\\/\\/s?)?(?<host>[A-Za-z.]+):(?<port>\\d+)",
- "http://${host}:${port}/somepath",
- //rewrite connection close
- "close",
- "open for ${host}");
+ mp::filter::HttpRewrite fhr;
+
+ mp::filter::HttpRewrite::spair_vec vec_req;
+ vec_req.push_back(std::make_pair(
+ "(?<proto>http\\:\\/\\/s?)(?<pxhost>[^\\/?#]+)\\/(?<pxpath>[^\\/]+)"
+ "\\/(?<host>[^\\/]+)(?<path>.*)",
+ "${proto}${host}${path}"
+ ));
+ vec_req.push_back(std::make_pair(
+ "(?:Host\\: )(.*)",
+ "Host: localhost"
+ ));
+
+ mp::filter::HttpRewrite::spair_vec vec_res;
+ vec_res.push_back(std::make_pair(
+ "(?<proto>http\\:\\/\\/s?)(?<host>[^\\/?#]+)\\/(?<path>[^ >]+)",
+ "THAT WAS MATCHED"
+ ));
+
+ fhr.configure(vec_req, vec_res);
+
+ mp::filter::HTTPClient hc;
+
+ router.append(fhr);
+ router.append(hc);
+
+ // create an http request
+ mp::Package pack;
+
+ mp::odr odr;
+ Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
+ "http://proxyhost/proxypath/localhost:80/~jakub/targetsite.php", 0, 1);
+
+ pack.request() = gdu_req;
+
+ //feed to the router
+ pack.router(router).move();
+
+ //analyze the response
+ Z_GDU *gdu_res = pack.response().get();
+ BOOST_CHECK(gdu_res);
+ BOOST_CHECK_EQUAL(gdu_res->which, Z_GDU_HTTP_Response);
+
+ Z_HTTP_Response *hres = gdu_res->u.HTTP_Response;
+ BOOST_CHECK(hres);
+
+ }
+ catch (std::exception & e) {
+ std::cout << e.what();
+ std::cout << std::endl;
+ BOOST_CHECK (false);
+ }
+}
+
+BOOST_AUTO_TEST_CASE( test_filter_rewrite_3 )
+{
+ try
+ {
+ std::string xmlconf =
+ "<?xml version='1.0'?>\n"
+ "<filter xmlns='http://indexdata.com/metaproxy'\n"
+ " id='rewrite1' type='http_rewrite'>\n"
+ " <request>\n"
+ " <rewrite from='"
+ "(?<proto>http\\:\\/\\/s?)(?<pxhost>[^\\/?#]+)\\/(?<pxpath>[^\\/]+)"
+ "\\/(?<host>[^\\/]+)(?<path>.*)'\n"
+ " to='${proto}${host}${path}' />\n"
+ " <rewrite from='(?:Host\\: )(.*)'\n"
+ " to='Host: localhost' />\n"
+ " </request>\n"
+ " <response>\n"
+ " <rewrite from='"
+ "(?<proto>http\\:\\/\\/s?)(?<host>[^\\/?#]+)\\/(?<path>[^ >]+)'\n"
+ " to='THAT WAS MATCHED' />\n"
+ " </response>\n"
+ "</filter>\n"
+ ;
+
+ std::cout << xmlconf;
+
+ // reading and parsing XML conf
+ xmlDocPtr doc = xmlParseMemory(xmlconf.c_str(), xmlconf.size());
+ BOOST_CHECK(doc);
+ xmlNode *root_element = xmlDocGetRootElement(doc);
+ mp::filter::HttpRewrite fhr;
+ fhr.configure(root_element, true, "");
+ xmlFreeDoc(doc);
mp::filter::HTTPClient hc;
+ mp::RouterChain router;
router.append(fhr);
router.append(hc);
mp::odr odr;
Z_GDU *gdu_req = z_get_HTTP_Request_uri(odr,
- "http://localhost:80/~jakub/targetsite.php", 0, 1);
+ "http://proxyhost/proxypath/localhost:80/~jakub/targetsite.php", 0, 1);
pack.request() = gdu_req;
}
catch (std::exception & e) {
std::cout << e.what();
+ std::cout << std::endl;
BOOST_CHECK (false);
}
}
projects / metaproxy-moved-to-github.git / blobdiff