X-Git-Url: http://git.indexdata.com/?p=yazproxy-moved-to-github.git;a=blobdiff_plain;f=src%2Fyaz-proxy.cpp;h=594435e44d8fc9060d4ff958bab40a1336241a1b;hp=e97946a12597b633f263d5c45d240a374a8a1158;hb=2faeba3f61ac423a9c71222e9a15377724d8f0fa;hpb=d6baec0e7369dd5d01a2998efb3667e3deff6db2 diff --git a/src/yaz-proxy.cpp b/src/yaz-proxy.cpp index e97946a..594435e 100644 --- a/src/yaz-proxy.cpp +++ b/src/yaz-proxy.cpp @@ -1,4 +1,4 @@ -/* $Id: yaz-proxy.cpp,v 1.20 2005-02-10 08:09:42 oleg Exp $ +/* $Id: yaz-proxy.cpp,v 1.26 2005-05-18 20:15:23 adam Exp $ Copyright (c) 1998-2005, Index Data. This file is part of the yaz-proxy. @@ -38,6 +38,7 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA #endif #include +#include #include #include @@ -116,9 +117,9 @@ Yaz_Proxy::Yaz_Proxy(IYaz_PDU_Observable *the_PDU_Observable, m_keepalive_limit_pdu = 1000; m_proxyTarget = 0; m_default_target = 0; - m_proxy_authentication = 0; m_proxy_negotiation_charset = 0; m_proxy_negotiation_lang = 0; + m_charset_converter = new Yaz_CharsetConverter; m_max_clients = 150; m_log_mask = 0; m_seed = time(0); @@ -140,7 +141,7 @@ Yaz_Proxy::Yaz_Proxy(IYaz_PDU_Observable *the_PDU_Observable, m_referenceId = 0; m_referenceId_mem = nmem_create(); m_config = 0; - m_marcxml_flag = 0; + m_marcxml_mode = none; m_stylesheet_xsp = 0; m_stylesheet_nprl = 0; m_s2z_stylesheet = 0; @@ -196,9 +197,9 @@ Yaz_Proxy::~Yaz_Proxy() xfree(m_proxyTarget); xfree(m_default_target); - xfree(m_proxy_authentication); xfree(m_proxy_negotiation_charset); xfree(m_proxy_negotiation_lang); + delete m_charset_converter; xfree(m_optimize); #if HAVE_XSLT @@ -222,6 +223,11 @@ Yaz_Proxy::~Yaz_Proxy() delete m_config; } +void Yaz_Proxy::set_debug_mode(int mode) +{ + m_debug_mode = mode; +} + int Yaz_Proxy::set_config(const char *config) { delete m_config; @@ -242,18 +248,11 @@ void Yaz_Proxy::set_default_target(const char *target) m_default_target = (char *) xstrdup (target); } -void Yaz_Proxy::set_proxy_authentication (const char *auth) -{ - xfree (m_proxy_authentication); - m_proxy_authentication = 0; - if (auth) - m_proxy_authentication = (char *) xstrdup (auth); -} void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang) { - yaz_log(YLOG_LOG, "%sSet the proxy negotiation: charset to '%s', - language to '%s'", m_session_str, (charset)?charset:"none", - (lang)?lang:"none"); + yaz_log(YLOG_LOG, "%sSet the proxy negotiation: charset to '%s', " + "language to '%s'", m_session_str, charset?charset:"none", + lang?lang:"none"); xfree (m_proxy_negotiation_charset); xfree (m_proxy_negotiation_lang); m_proxy_negotiation_charset = m_proxy_negotiation_lang = 0; @@ -262,6 +261,7 @@ void Yaz_Proxy::set_proxy_negotiation (const char *charset, const char *lang) if (lang) m_proxy_negotiation_lang = (char *) xstrdup (lang); } + Yaz_ProxyConfig *Yaz_Proxy::check_reconfigure() { if (m_parent) @@ -308,13 +308,12 @@ IYaz_PDU_Observer *Yaz_Proxy::sessionNotify(IYaz_PDU_Observable new_proxy->set_APDU_yazlog(1); else new_proxy->set_APDU_yazlog(0); - new_proxy->set_proxy_authentication(m_proxy_authentication); - new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset, - m_proxy_negotiation_lang); sprintf(new_proxy->m_session_str, "%ld:%d ", (long) time(0), m_session_no); m_session_no++; yaz_log (YLOG_LOG, "%sNew session %s", new_proxy->m_session_str, the_PDU_Observable->getpeername()); + new_proxy->set_proxy_negotiation(m_proxy_negotiation_charset, + m_proxy_negotiation_lang); return new_proxy; } @@ -413,20 +412,21 @@ Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie, Yaz_ProxyConfig *cfg = check_reconfigure(); if (proxy_host) { -#if 0 -/* only to be enabled for debugging... */ - if (!strcmp(proxy_host, "stop")) - exit(0); -#endif + if (parent && parent->m_debug_mode) + { + // only to be enabled for debugging... + if (!strcmp(proxy_host, "stop")) + exit(0); + } xfree(m_default_target); m_default_target = xstrdup(proxy_host); } proxy_host = m_default_target; int client_idletime = -1; const char *cql2rpn_fname = 0; - const char *authentication = 0; const char *negotiation_charset = 0; const char *negotiation_lang = 0; + const char *query_charset = 0; url[0] = m_default_target; url[1] = 0; if (cfg) @@ -440,9 +440,9 @@ Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie, &m_keepalive_limit_pdu, &pre_init, &cql2rpn_fname, - &authentication, &negotiation_charset, - &negotiation_lang); + &negotiation_lang, + &query_charset); } if (client_idletime != -1) { @@ -451,11 +451,12 @@ Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie, } if (cql2rpn_fname) m_cql2rpn.set_pqf_file(cql2rpn_fname); - if (authentication) - set_proxy_authentication(authentication); if (negotiation_charset || negotiation_lang) + { set_proxy_negotiation(negotiation_charset, negotiation_lang); + } + m_charset_converter->set_target_query_charset(query_charset); if (!url[0]) { yaz_log(YLOG_LOG, "%sNo default target", m_session_str); @@ -559,23 +560,9 @@ Yaz_ProxyClient *Yaz_Proxy::get_client(Z_APDU *apdu, const char *cookie, } Z_InitRequest *initRequest = apdu->u.initRequest; - if (!initRequest->idAuthentication) - { - if (m_proxy_authentication) - { - initRequest->idAuthentication = - (Z_IdAuthentication *) - odr_malloc (odr_encode(), - sizeof(*initRequest->idAuthentication)); - initRequest->idAuthentication->which = - Z_IdAuthentication_open; - initRequest->idAuthentication->u.open = - odr_strdup (odr_encode(), m_proxy_authentication); - } - } - else + if (initRequest->idAuthentication) { - // the client use authentication. We set the keepalive PDU + // the client uses authentication. We set the keepalive PDU // to 0 so we don't cache it in releaseClient m_keepalive_limit_pdu = 0; } @@ -842,6 +829,7 @@ void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p) continue; } #endif +/* HAVE_USEMARCON */ npr->u.databaseRecord = z_ext_record(odr_encode(), m_frontend_type, @@ -853,6 +841,74 @@ void Yaz_Proxy::convert_to_frontend_type(Z_NamePlusRecordList *p) } } +void Yaz_Proxy::convert_records_charset(Z_NamePlusRecordList *p, + const char *backend_charset) +{ + yaz_log(YLOG_LOG, "%sconvert_to_marc", m_session_str); + int sel = m_charset_converter->get_client_charset_selected(); + const char *client_record_charset = + m_charset_converter->get_client_query_charset(); + if (sel && backend_charset && client_record_charset && + strcmp(backend_charset, client_record_charset)) + { + int i; + yaz_iconv_t cd = yaz_iconv_open(client_record_charset, + backend_charset); + yaz_marc_t mt = yaz_marc_create(); + yaz_marc_xml(mt, YAZ_MARC_ISO2709); + yaz_marc_iconv(mt, cd); + for (i = 0; i < p->num_records; i++) + { + Z_NamePlusRecord *npr = p->records[i]; + if (npr->which == Z_NamePlusRecord_databaseRecord) + { + Z_External *r = npr->u.databaseRecord; + oident *ent = oid_getentbyoid(r->direct_reference); + if (!ent || ent->value == VAL_NONE) + continue; + + if (ent->value == VAL_SUTRS) + { + WRBUF w = wrbuf_alloc(); + + wrbuf_iconv_write(w, cd, (char*) r->u.octet_aligned->buf, + r->u.octet_aligned->len); + npr->u.databaseRecord = + z_ext_record(odr_encode(), ent->value, wrbuf_buf(w), + wrbuf_len(w)); + wrbuf_free(w, 1); + } + else if (ent->value == VAL_TEXT_XML) + { + ; + } + else if (r->which == Z_External_octet) + { + int rlen; + char *result; + if (yaz_marc_decode_buf(mt, + (char*) r->u.octet_aligned->buf, + r->u.octet_aligned->len, + &result, &rlen)) + { + npr->u.databaseRecord = + z_ext_record(odr_encode(), ent->value, result, rlen); + yaz_log(YLOG_LOG, "%sRecoding MARC record", + m_session_str); + } + } + } + } + if (cd) + yaz_iconv_close(cd); + yaz_marc_destroy(mt); + } + else + { + yaz_log(YLOG_LOG, "%sSkipping marc convert", m_session_str); + } +} + void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p, const char *backend_charset) { @@ -869,7 +925,18 @@ void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p, if (npr->which == Z_NamePlusRecord_databaseRecord) { Z_External *r = npr->u.databaseRecord; - if (r->which == Z_External_octet) + if (r->which == Z_External_OPAC) + { + WRBUF w = wrbuf_alloc(); + + yaz_display_OPAC(w, r->u.opac, 0); + npr->u.databaseRecord = z_ext_record( + odr_encode(), VAL_TEXT_XML, + wrbuf_buf(w), wrbuf_len(w) + ); + wrbuf_free(w, 1); + } + else if (r->which == Z_External_octet) { int rlen; char *result; @@ -877,9 +944,8 @@ void Yaz_Proxy::convert_to_marcxml(Z_NamePlusRecordList *p, r->u.octet_aligned->len, &result, &rlen)) { - npr->u.databaseRecord = z_ext_record(odr_encode(), - VAL_TEXT_XML, - result, rlen); + npr->u.databaseRecord = + z_ext_record(odr_encode(), VAL_TEXT_XML, result, rlen); } } } @@ -1198,9 +1264,12 @@ int Yaz_Proxy::send_to_client(Z_APDU *apdu) #endif ) convert_to_frontend_type(p->u.databaseOrSurDiagnostics); - if (m_marcxml_flag) + if (m_marcxml_mode == marcxml) convert_to_marcxml(p->u.databaseOrSurDiagnostics, m_backend_charset); + else + convert_records_charset(p->u.databaseOrSurDiagnostics, + m_backend_charset); if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu)) return 0; @@ -1243,9 +1312,12 @@ int Yaz_Proxy::send_to_client(Z_APDU *apdu) #endif ) convert_to_frontend_type(p->u.databaseOrSurDiagnostics); - if (m_marcxml_flag) + if (m_marcxml_mode == marcxml) convert_to_marcxml(p->u.databaseOrSurDiagnostics, m_backend_charset); + else + convert_records_charset(p->u.databaseOrSurDiagnostics, + m_backend_charset); if (convert_xsl(p->u.databaseOrSurDiagnostics, apdu)) return 0; } @@ -1636,11 +1708,13 @@ void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu) { if (apdu->which == Z_APDU_initRequest) { + yaz_log(YLOG_LOG, "%shandle_charset_lang_negotiation", + m_session_str); if (m_initRequest_options && !ODR_MASK_GET(m_initRequest_options, Z_Options_negotiationModel) && (m_proxy_negotiation_charset || m_proxy_negotiation_lang)) { - // There is not negotiation proposal from + // There is no negotiation proposal from // client's side. OK. The proxy negotiation // in use, only. Z_InitRequest *initRequest = apdu->u.initRequest; @@ -1662,12 +1736,71 @@ void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu) 1); } } + else if (m_initRequest_options && + ODR_MASK_GET(m_initRequest_options, + Z_Options_negotiationModel) && + m_charset_converter->get_target_query_charset()) + { + yaz_log(YLOG_LOG, "%sManaged charset negotiation: charset=%s", + m_session_str, + m_charset_converter->get_target_query_charset()); + Z_InitRequest *initRequest = apdu->u.initRequest; + Z_CharSetandLanguageNegotiation *negotiation = + yaz_get_charneg_record (initRequest->otherInfo); + if (negotiation && + negotiation->which == Z_CharSetandLanguageNegotiation_proposal) + { + NMEM nmem = nmem_create(); + char **charsets = 0; + int num_charsets = 0; + char **langs = 0; + int num_langs = 0; + int selected = 0; + yaz_get_proposal_charneg (nmem, negotiation, + &charsets, &num_charsets, + &langs, &num_langs, &selected); + int i; + for (i = 0; iget_target_query_charset(); + // sweep through charsets and pick the first supported + // conversion + for (i = 0; iset_client_query_charset(c_charset); + m_charset_converter->set_client_charset_selected(selected); + } + nmem_destroy(nmem); + ODR_MASK_CLEAR(m_initRequest_options, + Z_Options_negotiationModel); + yaz_del_charneg_record(&initRequest->otherInfo); + } + else + { + yaz_log(YLOG_WARN, "%sUnable to decode charset package", + m_session_str); + } + } } else if (apdu->which == Z_APDU_initResponse) { Z_InitResponse *initResponse = apdu->u.initResponse; Z_OtherInformation **otherInfo; - Z_OtherInformationUnit *oi; if (ODR_MASK_GET(initResponse->options, Z_Options_negotiationModel)) { @@ -1710,35 +1843,42 @@ void Yaz_Proxy::handle_charset_lang_negotiation(Z_APDU *apdu) ODR_MASK_CLEAR(initResponse->options, Z_Options_negotiationModel); // Delete negotiation (charneg-3) entry. - Z_OtherInformation *p = *otherInfo; - for (int i=0; inum_elements; i++) + yaz_del_charneg_record(otherInfo); + } + } + else + { + if (m_proxy_negotiation_charset || m_proxy_negotiation_lang) + { + yaz_log(YLOG_LOG, "%sTarget did not honor negotiation", + m_session_str); + } + else if (m_charset_converter->get_client_query_charset()) + { + Z_OtherInformation **otherInfo; + Z_OtherInformationUnit *oi; + get_otherInfoAPDU(apdu, &otherInfo); + oi = update_otherInformation(otherInfo, 1, NULL, 0, 0); + if (oi) { - if (p->list[i]->which == Z_OtherInfo_externallyDefinedInfo) - { - Z_External *pext = - p->list[i]->information.externallyDefinedInfo; - struct oident *e = oid_getentbyoid(pext->direct_reference); - - if (e && e->value == VAL_CHARNEG3 && e->oclass == CLASS_NEGOT && - pext->which == Z_External_charSetandLanguageNegotiation) - { - (p->num_elements)--; - if(p->num_elements == 0) - { - *otherInfo = 0; - } - else - { - for (int j=i; jnum_elements;j++) - p->list[j] = p->list[j+1]; - } - } - } - } + ODR_MASK_SET(initResponse->options, + Z_Options_negotiationModel); + ODR_MASK_SET(m_initRequest_options, + Z_Options_negotiationModel); + + oi->which = Z_OtherInfo_externallyDefinedInfo; + oi->information.externallyDefinedInfo = + yaz_set_response_charneg( + odr_encode(), + m_charset_converter->get_client_query_charset(), + 0 /* no lang */, + m_charset_converter->get_client_charset_selected()); + } } } } } + Z_Records *Yaz_Proxy::create_nonSurrogateDiagnostics(ODR odr, int error, const char *addinfo) @@ -1807,6 +1947,24 @@ Z_APDU *Yaz_Proxy::handle_query_transformation(Z_APDU *apdu) return apdu; } +Z_APDU *Yaz_Proxy::handle_target_charset_conversion(Z_APDU *apdu) +{ + if (apdu->which == Z_APDU_searchRequest && + apdu->u.searchRequest->query) + { + if (apdu->u.searchRequest->query->which == Z_Query_type_1 + || apdu->u.searchRequest->query->which == Z_Query_type_101) + { + if (m_http_version) + m_charset_converter->set_client_query_charset("UTF-8"); + Z_RPNQuery *rpnquery = apdu->u.searchRequest->query->u.type_1; + m_charset_converter->convert_type_1(rpnquery, odr_encode()); + } + } + return apdu; +} + + Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu) { if (apdu->which == Z_APDU_searchRequest) @@ -1836,9 +1994,47 @@ Z_APDU *Yaz_Proxy::handle_query_validation(Z_APDU *apdu) return apdu; } +int Yaz_Proxy::handle_authentication(Z_APDU *apdu) +{ + if (apdu->which != Z_APDU_initRequest) + return 1; // pass if no init request + Z_InitRequest *req = apdu->u.initRequest; + + Yaz_ProxyConfig *cfg = check_reconfigure(); + if (!cfg) + return 1; // pass if no config + + int ret; + if (req->idAuthentication == 0) + { + ret = cfg->client_authentication(m_default_target, 0, 0, 0); + } + else if (req->idAuthentication->which == Z_IdAuthentication_idPass) + { + ret = cfg->client_authentication(m_default_target, + req->idAuthentication->u.idPass->userId, + req->idAuthentication->u.idPass->groupId, + req->idAuthentication->u.idPass->password); + } + else if (req->idAuthentication->which == Z_IdAuthentication_open) + { + char user[64], pass[64]; + *user = '\0'; + *pass = '\0'; + sscanf(req->idAuthentication->u.open, "%63[^/]/%63s", user, pass); + ret = cfg->client_authentication(m_default_target, user, 0, pass); + } + else + ret = cfg->client_authentication(m_default_target, 0, 0, 0); + + cfg->target_authentication(m_default_target, odr_encode(), req); + + return ret; +} + Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu) { - m_marcxml_flag = 0; + m_marcxml_mode = none; if (apdu->which == Z_APDU_searchRequest) { Z_SearchRequest *sr = apdu->u.searchRequest; @@ -1891,6 +2087,7 @@ Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu) { sr->smallSetElementSetNames = 0; sr->mediumSetElementSetNames = 0; + m_marcxml_mode = marcxml; if (m_backend_type) { @@ -1902,7 +2099,6 @@ Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu) sr->preferredRecordSyntax = yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN, VAL_USMARC); - m_marcxml_flag = 1; } else if (err) { @@ -1967,6 +2163,7 @@ Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu) if (err == -1) { pr->recordComposition = 0; + m_marcxml_mode = marcxml; if (m_backend_type) { @@ -1978,7 +2175,6 @@ Z_APDU *Yaz_Proxy::handle_syntax_validation(Z_APDU *apdu) pr->preferredRecordSyntax = yaz_oidval_to_z3950oid(odr_encode(), CLASS_RECSYN, VAL_USMARC); - m_marcxml_flag = 1; } else if (err) { @@ -2036,7 +2232,6 @@ void Yaz_Proxy::srw_get_client(const char *db, const char **backend_db) int Yaz_Proxy::file_access(Z_HTTP_Request *hreq) { struct stat sbuf; - yaz_log(YLOG_LOG, "file_access"); if (strcmp(hreq->method, "GET")) return 0; if (hreq->path[0] != '/') @@ -2563,6 +2758,17 @@ void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu) } m_client->m_init_flag = 1; } + + if (!handle_authentication(apdu)) + { + Z_APDU *apdu_reject = zget_APDU(odr_encode(), Z_APDU_initResponse); + *apdu_reject->u.initResponse->result = 0; + send_to_client(apdu_reject); + + shutdown(); + return; + } + handle_max_record_retrieve(apdu); if (apdu) @@ -2572,10 +2778,14 @@ void Yaz_Proxy::handle_incoming_Z_PDU(Z_APDU *apdu) apdu = handle_query_transformation(apdu); if (apdu) + apdu = handle_target_charset_conversion(apdu); + + if (apdu) apdu = handle_query_validation(apdu); if (apdu) apdu = result_set_optimize(apdu); + if (!apdu) { m_client->timeout(m_target_idletime); // mark it active even @@ -2790,7 +3000,8 @@ void Yaz_Proxy::pre_init() &cql2rpn, &authentication, &negotiation_charset, - &negotiation_lang) ; i++) + &negotiation_lang, + 0) ; i++) { if (pre_init) {