From: Adam Dickmeiss Date: Wed, 15 Mar 2006 14:55:17 +0000 (+0000) Subject: *** empty log message *** X-Git-Tag: METAPROXY.0.9~7 X-Git-Url: http://lists.indexdata.dk/?a=commitdiff_plain;h=872baf038ffe10f670ba45082c6911201e2ac4cb;p=metaproxy-moved-to-github.git *** empty log message *** --- diff --git a/configure.ac b/configure.ac index 8a2173a..9d5223d 100644 --- a/configure.ac +++ b/configure.ac @@ -110,10 +110,7 @@ if test "$xsltdir" != "no"; then [Define to 1 if you have libxslt installed]) else AC_MSG_RESULT(Not found) - if test "$xsltdir" = "default"; then - AC_MSG_WARN([Libxslt development libraries not found.]) - else - AC_MSG_ERROR([libxslt development libraries not found.]) fi + AC_MSG_ERROR([libxslt required.]) fi fi diff --git a/etc/config5.xml b/etc/config5.xml new file mode 100644 index 0000000..19a3f97 --- /dev/null +++ b/etc/config5.xml @@ -0,0 +1,26 @@ + + + + + + + @:9000 + + + + + + + F + + + pqf2pqf.xsl + + + B + + + + + + diff --git a/etc/pqf2pqf.xsl b/etc/pqf2pqf.xsl new file mode 100644 index 0000000..021117b --- /dev/null +++ b/etc/pqf2pqf.xsl @@ -0,0 +1,183 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/src/factory_static.cpp b/src/factory_static.cpp index 41bd521..b4e0aed 100644 --- a/src/factory_static.cpp +++ b/src/factory_static.cpp @@ -1,4 +1,4 @@ -/* $Id: factory_static.cpp,v 1.7 2006-01-19 21:43:51 adam Exp $ +/* $Id: factory_static.cpp,v 1.8 2006-03-15 14:55:17 adam Exp $ Copyright (c) 2005, Index Data. %LICENSE% @@ -21,6 +21,7 @@ #include "filter_http_file.hpp" #include "filter_log.hpp" #include "filter_multi.hpp" +#include "filter_query_rewrite.hpp" #include "filter_session_shared.hpp" #include "filter_template.hpp" #include "filter_virt_db.hpp" @@ -35,6 +36,7 @@ yp2::FactoryStatic::FactoryStatic() &yp2_filter_http_file, &yp2_filter_log, &yp2_filter_multi, + &yp2_filter_query_rewrite, &yp2_filter_session_shared, &yp2_filter_template, &yp2_filter_virt_db, diff --git a/src/filter_query_rewrite.cpp b/src/filter_query_rewrite.cpp index 159fbb9..b030fac 100644 --- a/src/filter_query_rewrite.cpp +++ b/src/filter_query_rewrite.cpp @@ -1,4 +1,4 @@ -/* $Id: filter_query_rewrite.cpp,v 1.3 2006-01-22 00:05:51 marc Exp $ +/* $Id: filter_query_rewrite.cpp,v 1.4 2006-03-15 14:55:17 adam Exp $ Copyright (c) 2005, Index Data. %LICENSE% @@ -16,23 +16,38 @@ #include "filter_query_rewrite.hpp" #include +#include +#include + +#include +#include namespace yf = yp2::filter; namespace yp2 { namespace filter { class QueryRewrite::Rep { - //friend class QueryRewrite; public: + Rep(); + ~Rep(); void process(yp2::Package &package) const; void configure(const xmlNode * ptr); private: - void rewriteRegex(Z_Query *query) const; + xsltStylesheetPtr m_stylesheet; }; } } -// Class QueryRewrite frowarding to class QueryRewrite::Rep +yf::QueryRewrite::Rep::Rep() +{ + m_stylesheet = 0; +} + +yf::QueryRewrite::Rep::~Rep() +{ + if (m_stylesheet) + xsltFreeStylesheet(m_stylesheet); +} yf::QueryRewrite::QueryRewrite() : m_p(new Rep) { @@ -52,165 +67,94 @@ void yp2::filter::QueryRewrite::configure(const xmlNode *ptr) m_p->configure(ptr); } - -// Class QueryRewrite::Rep implementation - void yf::QueryRewrite::Rep::process(yp2::Package &package) const { - if (package.session().is_closed()) - { - //std::cout << "Got Close.\n"; - } - Z_GDU *gdu = package.request().get(); - if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which == - Z_APDU_initRequest) - { - //std::cout << "Got Z3950 Init PDU\n"; - //Z_InitRequest *req = gdu->u.z3950->u.initRequest; - //package.request() = gdu; - } - else if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which == - Z_APDU_searchRequest) + if (gdu && gdu->which == Z_GDU_Z3950) { - //std::cout << "Got Z3950 Search PDU\n"; - Z_SearchRequest *req = gdu->u.z3950->u.searchRequest; - - // applying regex query rewriting - rewriteRegex(req->query); + Z_APDU *apdu_req = gdu->u.z3950; + if (apdu_req->which == Z_APDU_searchRequest) + { + int error_code = 0; + const char *addinfo = 0; + yp2::odr odr; + Z_SearchRequest *req = apdu_req->u.searchRequest; - // fold new query structure into gdu package .. - // yp2::util::pqf(odr, gdu->u.z3950, query_out); - // question: which odr structure to use in this call ?? - // memory alignment has to be correct, this is a little tricky ... - // I'd rather like to alter the gdu and pack it back using: - package.request() = gdu; - } - else if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which == - Z_APDU_scanRequest) - { - std::cout << "Got Z3950 Scan PDU\n"; - //Z_ScanRequest *req = gdu->u.z3950->u.scanRequest; - //package.request() = gdu; - } + xmlDocPtr doc_input = 0; + yaz_query2xml(req->query, &doc_input); + + if (!doc_input) + { + error_code = YAZ_BIB1_MALFORMED_QUERY; + addinfo = "converion from Query to XML failed"; + } + else + { + if (m_stylesheet) + { + xmlDocPtr doc_res = xsltApplyStylesheet(m_stylesheet, + doc_input, 0); + if (!doc_res) + { + error_code = YAZ_BIB1_MALFORMED_QUERY; + addinfo = "XSLT transform failed for query"; + } + else + { + const xmlNode *root_element = xmlDocGetRootElement(doc_res); + yaz_xml2query(root_element, &req->query, odr, + &error_code, &addinfo); + xmlFreeDoc(doc_res); + } + } + xmlFreeDoc(doc_input); + } + package.request() = gdu; + if (error_code) + { + Z_APDU *f_apdu = + odr.create_searchResponse(apdu_req, error_code, addinfo); + package.response() = f_apdu; + return; + } + } + } package.move(); } - -void yf::QueryRewrite::Rep::rewriteRegex(Z_Query *query) const +void yp2::filter::QueryRewrite::Rep::configure(const xmlNode *ptr) { - std::string query_in = yp2::util::zQueryToString(query); - //std::cout << "QUERY IN '" << query_in << "'\n"; - - std::string query_out; - - boost::regex rgx; - try{ - // make regular expression replacement here - std::string expression("@attr 1=4"); - std::string format("@attr 1=4 @attr 4=3"); - //std::string expression("the"); - //std::string format("else"); - //std::string expression("(<)|(>)|\\r"); - //std::string format("(?1<)(?2>)"); - - //std::cout << "EXPRESSION '" << expression << "'\n"; - //std::cout << "FORMAT '" << format << "'\n"; - - rgx.assign(expression.c_str()); - - bool match(false); - bool search(false); - - // other flags - // see http://www.boost.org/libs/regex/doc/match_flag_type.html - //boost::match_flag_type flags = boost::match_default; - // boost::format_default - // boost::format_perl - // boost::format_literal - // boost::format_all - // boost::format_no_copy - // boost::format_first_only - - boost::match_flag_type flags - = boost::match_default | boost::format_all; - - match = regex_match(query_in, rgx, flags); - search = regex_search(query_in, rgx, flags); - query_out = boost::regex_replace(query_in, rgx, format, flags); - //std::cout << "MATCH '" << match << "'\n"; - //std::cout << "SEARCH '" << search << "'\n"; - //std::cout << "QUERY OUT '" << query_out << "'\n"; - - } - catch(boost::regex_error &e) + for (ptr = ptr->children; ptr; ptr = ptr->next) { - std::cout << "REGEX Error code=" << e.code() - << " position=" << e.position() << "\n"; - } - - //std::cout << "QUERY OUT '" << query_out << "'\n"; - // still need to fold this new rpn query string into Z_Query structure... -} - - - -void yp2::filter::QueryRewrite::Rep::configure(const xmlNode *filter) -{ - - //std::cout << "XML node '" << filter->name << "'\n"; - yp2::xml::check_element_yp2(filter, "filter"); - - const xmlNode* regex - = yp2::xml::jump_to_children(filter, XML_ELEMENT_NODE); - - while (regex){ - //std::cout << "XML node '" << regex->name << "'\n"; - yp2::xml::check_element_yp2(regex, "regex"); - - // parsing action -// const xmlNode* action -// = yp2::xml::jump_to_children(regex, XML_ATTRIBUTE_NODE); -// if (action){ -// std::cout << "XML node '" << action->name << "' '"; -// std::cout << yp2::xml::get_text(action) << "'\n"; -// //yp2::xml::check_element_yp2(expression, "expression"); -// } - - // parsing regex expression - std::string expr; - const xmlNode* expression - = yp2::xml::jump_to_children(regex, XML_ELEMENT_NODE); - if (expression){ - yp2::xml::check_element_yp2(expression, "expression"); - expr = yp2::xml::get_text(expression); - //std::cout << "XML node '" << expression->name << "' '"; - //std::cout << yp2::xml::get_text(expression) << "'\n"; - } - - // parsing regex format - std::string form; - const xmlNode* format - = yp2::xml::jump_to_next(expression, XML_ELEMENT_NODE); - if (format){ - yp2::xml::check_element_yp2(format, "format"); - form = yp2::xml::get_text(format); - //std::cout << "XML node '" << format->name << "' '"; - //std::cout << yp2::xml::get_text(format) << "'\n"; + if (ptr->type != XML_ELEMENT_NODE) + continue; + if (!strcmp((const char *) ptr->name, "xslt")) + { + if (m_stylesheet) + { + throw yp2::filter::FilterException + ("Only one xslt element allowed in query_rewrite filter"); + } + + std::string fname = yp2::xml::get_text(ptr); + m_stylesheet = xsltParseStylesheetFile(BAD_CAST fname.c_str()); + if (!m_stylesheet) + { + throw yp2::filter::FilterException + ("Failed to read stylesheet " + + fname + + " in query_rewrite filter"); + } } - - // adding configuration - if (expr.size() && form.size()){ - //std::cout << "adding regular expression\n"; + else + { + throw yp2::filter::FilterException + ("Bad element " + + std::string((const char *) ptr->name) + + " in query_rewrite filter"); } - - // moving forward to next regex - regex = yp2::xml::jump_to_next(regex, XML_ELEMENT_NODE); } - - // done parsing XML config - } static yp2::filter::Base* filter_creator() @@ -226,11 +170,6 @@ extern "C" { }; } -extern "C" { - extern struct yp2_filter_struct yp2_filter_query_rewrite; -} - - /* * Local variables: * c-basic-offset: 4 diff --git a/src/filter_query_rewrite.hpp b/src/filter_query_rewrite.hpp index 34f5eba..7fea8f7 100644 --- a/src/filter_query_rewrite.hpp +++ b/src/filter_query_rewrite.hpp @@ -1,4 +1,4 @@ -/* $Id: filter_query_rewrite.hpp,v 1.2 2006-01-22 00:05:51 marc Exp $ +/* $Id: filter_query_rewrite.hpp,v 1.3 2006-03-15 14:55:17 adam Exp $ Copyright (c) 2005, Index Data. %LICENSE% @@ -27,7 +27,7 @@ namespace yp2 { } extern "C" { - extern struct yp2_filter_struct yp2_filter_queryRewrite; + extern struct yp2_filter_struct yp2_filter_query_rewrite; } #endif