/*
- * Copyright (c) 1995-2002, Index Data
+ * Copyright (c) 1995-2003, Index Data
* See the file LICENSE for details.
*
- * $Id: seshigh.c,v 1.132 2002-09-25 12:37:07 adam Exp $
+ * $Id: seshigh.c,v 1.136 2003-02-17 14:35:42 adam Exp $
*/
/*
#include <stdlib.h>
#include <stdio.h>
+#include <sys/types.h>
#ifdef WIN32
+#include <io.h>
+#define S_ISREG(x) (x & _S_IFREG)
#include <process.h>
#else
+#include <sys/stat.h>
#include <unistd.h>
#endif
#include <assert.h>
#include <yaz/diagbib1.h>
#include <yaz/charneg.h>
#include <yaz/otherinfo.h>
+#include <yaz/yaz-util.h>
+#include <yaz/srw.h>
#include <yaz/backend.h>
-static int process_request(association *assoc, request *req, char **msg);
+static void process_gdu_request(association *assoc, request *req);
+static int process_z_request(association *assoc, request *req, char **msg);
void backend_response(IOCHAN i, int event);
-static int process_response(association *assoc, request *req, Z_APDU *res);
+static int process_gdu_response(association *assoc, request *req, Z_GDU *res);
+static int process_z_response(association *assoc, request *req, Z_APDU *res);
static Z_APDU *process_initRequest(association *assoc, request *reqb);
static Z_APDU *process_searchRequest(association *assoc, request *reqb,
int *fd);
static FILE *apduf = 0; /* for use in static mode */
static statserv_options_block *control_block = 0;
-/* Chas: Added in from DALI */
static Z_APDU *process_ESRequest(association *assoc, request *reqb, int *fd);
-/* Chas: End of addition from DALI */
/*
* Create and initialize a new association-handle.
apdu.u.close = cls;
*cls->closeReason = reason;
cls->diagnosticInformation = message;
- process_response(a, req, &apdu);
+ process_z_response(a, req, &apdu);
iochan_settimeout(a->client_chan, 60);
}
else
iochan_setevent(h, EVENT_INPUT);
/* we got a complete PDU. Let's decode it */
- yaz_log(LOG_DEBUG, "Got PDU, %d bytes", res);
+ yaz_log(LOG_DEBUG, "Got PDU, %d bytes: lead=%02X %02X %02X", res,
+ assoc->input_buffer[0] & 0xff,
+ assoc->input_buffer[1] & 0xff,
+ assoc->input_buffer[2] & 0xff);
req = request_get(&assoc->incoming); /* get a new request structure */
odr_reset(assoc->decode);
odr_setbuf(assoc->decode, assoc->input_buffer, res, 0);
- if (!z_APDU(assoc->decode, &req->apdu_request, 0, 0))
+ if (!z_GDU(assoc->decode, &req->gdu_request, 0, 0))
{
yaz_log(LOG_LOG, "ODR error on incoming PDU: %s [near byte %d] ",
odr_errmsg(odr_geterror(assoc->decode)),
odr_offset(assoc->decode));
- yaz_log(LOG_LOG, "PDU dump:");
- odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
- do_close(assoc, Z_Close_protocolError, "Malformed package");
+ if (assoc->decode->error != OHTTP)
+ {
+ yaz_log(LOG_LOG, "PDU dump:");
+ odr_dumpBER(yaz_log_file(), assoc->input_buffer, res);
+ do_close(assoc, Z_Close_protocolError, "Malformed package");
+ }
+ else
+ {
+ Z_GDU *p = z_get_HTTP_Response(assoc->encode, 400);
+ assoc->state = ASSOC_DEAD;
+ process_gdu_response(assoc, req, p);
+ }
return;
}
req->request_mem = odr_extract_mem(assoc->decode);
- if (assoc->print && !z_APDU(assoc->print, &req->apdu_request, 0, 0))
+ if (assoc->print && !z_GDU(assoc->print, &req->gdu_request, 0, 0))
{
yaz_log(LOG_WARN, "ODR print error: %s",
odr_errmsg(odr_geterror(assoc->print)));
req = request_head(&assoc->incoming);
if (req->state == REQUEST_IDLE)
{
- char *msg;
request_deq(&assoc->incoming);
- if (process_request(assoc, req, &msg) < 0)
- do_close_req(assoc, Z_Close_systemProblem, msg, req);
+ process_gdu_request(assoc, req);
}
}
if (event & assoc->cs_put_mask)
assoc->cs_put_mask = 0;
yaz_log(LOG_DEBUG, "ir_session (output)");
- req->state = REQUEST_PENDING;
+ req->state = REQUEST_PENDING;
switch (res = cs_put(conn, req->response, req->len_response))
{
case -1:
break;
case 0: /* all sent - release the request structure */
yaz_log(LOG_DEBUG, "Wrote PDU, %d bytes", req->len_response);
+#if 0
+ yaz_log(LOG_DEBUG, "HTTP out:\n%.*s", req->len_response,
+ req->response);
+#endif
nmem_destroy(req->request_mem);
request_deq(&assoc->outgoing);
request_release(req);
{ /* restore mask for cs_get operation ... */
iochan_clearflag(h, EVENT_OUTPUT|EVENT_INPUT);
iochan_setflag(h, assoc->cs_get_mask);
+ yaz_log(LOG_LOG, "queue empty mask=%d", assoc->cs_get_mask);
+ if (assoc->state == ASSOC_DEAD)
+ iochan_setevent(assoc->client_chan, EVENT_TIMEOUT);
}
else
+ {
assoc->cs_put_mask = EVENT_OUTPUT;
+ yaz_log(LOG_LOG, "queue not empty");
+ }
break;
default:
if (conn->io_pending & CS_WANT_WRITE)
}
}
+static int process_z_request(association *assoc, request *req, char **msg);
+
+static int srw_bend_init(association *assoc)
+{
+ bend_initresult *binitres;
+ statserv_options_block *cb = statserv_getcontrol();
+
+ assoc->init = (bend_initrequest *) xmalloc (sizeof(*assoc->init));
+
+ assoc->init->stream = assoc->encode;
+ assoc->init->print = assoc->print;
+ assoc->init->auth = 0;
+ assoc->init->referenceId = 0;
+ assoc->init->implementation_version = 0;
+ assoc->init->implementation_id = 0;
+ assoc->init->implementation_name = 0;
+ assoc->init->bend_sort = NULL;
+ assoc->init->bend_search = NULL;
+ assoc->init->bend_present = NULL;
+ assoc->init->bend_esrequest = NULL;
+ assoc->init->bend_delete = NULL;
+ assoc->init->bend_scan = NULL;
+ assoc->init->bend_segment = NULL;
+ assoc->init->bend_fetch = NULL;
+ assoc->init->charneg_request = NULL;
+ assoc->init->charneg_response = NULL;
+ assoc->init->decode = assoc->decode;
+
+ assoc->init->peer_name =
+ odr_strdup (assoc->encode, cs_addrstr(assoc->client_link));
+ if (!(binitres = (*cb->bend_init)(assoc->init)))
+ {
+ yaz_log(LOG_WARN, "Bad response from backend.");
+ return 0;
+ }
+ assoc->backend = binitres->handle;
+ return 1;
+}
+
+static void srw_bend_fetch(association *assoc, int pos,
+ Z_SRW_searchRetrieveRequest *srw_req,
+ Z_SRW_record *record)
+{
+ bend_fetch_rr rr;
+ ODR o = assoc->encode;
+
+ rr.setname = "default";
+ rr.number = pos;
+ rr.referenceId = 0;
+ rr.request_format = VAL_TEXT_XML;
+ rr.request_format_raw = yaz_oidval_to_z3950oid(assoc->decode,
+ CLASS_TRANSYN,
+ VAL_TEXT_XML);
+ rr.comp = (Z_RecordComposition *)
+ odr_malloc(assoc->decode, sizeof(*rr.comp));
+ rr.comp->which = Z_RecordComp_complex;
+ rr.comp->u.complex = (Z_CompSpec *)
+ odr_malloc(assoc->decode, sizeof(Z_CompSpec));
+ rr.comp->u.complex->selectAlternativeSyntax = (bool_t *)
+ odr_malloc(assoc->encode, sizeof(bool_t));
+ *rr.comp->u.complex->selectAlternativeSyntax = 0;
+ rr.comp->u.complex->num_dbSpecific = 0;
+ rr.comp->u.complex->dbSpecific = 0;
+ rr.comp->u.complex->num_recordSyntax = 0;
+ rr.comp->u.complex->recordSyntax = 0;
+
+ rr.comp->u.complex->generic = (Z_Specification *)
+ odr_malloc(assoc->decode, sizeof(Z_Specification));
+ rr.comp->u.complex->generic->which = Z_Specification_uri;
+ rr.comp->u.complex->generic->u.uri = srw_req->recordSchema;
+ rr.comp->u.complex->generic->elementSpec = 0;
+
+ rr.stream = assoc->encode;
+ rr.print = assoc->print;
+
+ rr.basename = 0;
+ rr.len = 0;
+ rr.record = 0;
+ rr.last_in_set = 0;
+ rr.output_format = VAL_TEXT_XML;
+ rr.output_format_raw = 0;
+ rr.errcode = 0;
+ rr.errstring = 0;
+ rr.surrogate_flag = 0;
+
+ (*assoc->init->bend_fetch)(assoc->backend, &rr);
+
+ if (rr.len >= 0)
+ {
+ record->recordData_buf = rr.record;
+ record->recordData_len = rr.len;
+ record->recordPosition = odr_intdup(o, pos);
+ record->recordSchema = 0;
+ if (srw_req->recordSchema)
+ record->recordSchema = odr_strdup(o, srw_req->recordSchema);
+ }
+}
+
+static void srw_bend_search(association *assoc, request *req,
+ Z_SRW_searchRetrieveRequest *srw_req,
+ Z_SRW_searchRetrieveResponse *srw_res)
+{
+ char *base = "Default";
+ bend_search_rr rr;
+ Z_External *ext;
+
+ if (!assoc->init)
+ srw_bend_init(assoc);
+
+ rr.setname = "default";
+ rr.replace_set = 1;
+ rr.num_bases = 1;
+ rr.basenames = &srw_req->database;
+ rr.referenceId = 0;
+
+ ext = (Z_External *) odr_malloc(assoc->decode, sizeof(*ext));
+ ext->direct_reference = odr_getoidbystr(assoc->decode,
+ "1.2.840.10003.16.2");
+ ext->indirect_reference = 0;
+ ext->descriptor = 0;
+ ext->which = Z_External_CQL;
+ if (srw_req->query)
+ ext->u.cql = srw_req->query;
+ else
+ ext->u.cql = "noterm";
+
+ rr.query = (Z_Query *) odr_malloc (assoc->decode, sizeof(*rr.query));
+ rr.query->which = Z_Query_type_104;
+ rr.query->u.type_104 = ext;
+
+ rr.stream = assoc->encode;
+ rr.decode = assoc->decode;
+ rr.print = assoc->print;
+ rr.request = req;
+ rr.association = assoc;
+ rr.fd = 0;
+ rr.hits = 0;
+ rr.errcode = 0;
+ rr.errstring = 0;
+ rr.search_info = 0;
+ yaz_log_zquery(rr.query);
+ (assoc->init->bend_search)(assoc->backend, &rr);
+ srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
+ if (rr.errcode)
+ {
+ srw_res->num_diagnostics = 1;
+ srw_res->diagnostics = (Z_SRW_diagnostic *)
+ odr_malloc(assoc->encode, sizeof(*srw_res->diagnostics));
+ srw_res->diagnostics[0].code =
+ odr_intdup(assoc->encode, rr.errcode);
+ srw_res->diagnostics[0].details = rr.errstring;
+ }
+ else
+ {
+ srw_res->numberOfRecords = odr_intdup(assoc->encode, rr.hits);
+ if (srw_req->maximumRecords && *srw_req->maximumRecords > 0)
+ {
+ int number = *srw_req->maximumRecords;
+ int start = 1;
+ int i;
+ if (srw_req->startRecord)
+ start = *srw_req->startRecord;
+ if (start <= rr.hits)
+ {
+ int j = 0;
+ if (start + number > rr.hits)
+ number = rr.hits - start + 1;
+ srw_res->records = (Z_SRW_record *)
+ odr_malloc(assoc->encode,
+ number * sizeof(*srw_res->records));
+ for (i = 0; i<number; i++)
+ {
+ srw_res->records[j].recordData_buf = 0;
+ srw_bend_fetch(assoc, i+start, srw_req,
+ srw_res->records + j);
+ if (srw_res->records[j].recordData_buf)
+ j++;
+ }
+ srw_res->num_records = j;
+ if (!j)
+ srw_res->records = 0;
+ yaz_log(LOG_LOG, "got %d records", j);
+ }
+ }
+ }
+}
+
+static void process_http_request(association *assoc, request *req)
+{
+ Z_HTTP_Request *hreq = req->gdu_request->u.HTTP_Request;
+ ODR o = assoc->encode;
+ Z_GDU *p = 0;
+ Z_HTTP_Response *hres = 0;
+ int keepalive = 1;
+
+ if (!strcmp(hreq->method, "GET"))
+ {
+#ifdef DOCDIR
+ if (strlen(hreq->path) >= 5 && strlen(hreq->path) < 80 &&
+ !memcmp(hreq->path, "/doc/", 5))
+ {
+ FILE *f;
+ char fpath[120];
+
+ strcpy(fpath, DOCDIR);
+ strcat(fpath, hreq->path+4);
+ f = fopen(fpath, "rb");
+ if (f) {
+ struct stat sbuf;
+ if (fstat(fileno(f), &sbuf) || !S_ISREG(sbuf.st_mode))
+ {
+ fclose(f);
+ f = 0;
+ }
+ }
+ if (f)
+ {
+ long sz;
+ fseek(f, 0L, SEEK_END);
+ sz = ftell(f);
+ if (sz >= 0 && sz < 500000)
+ {
+ const char *ctype = "application/octet-stream";
+ const char *cp;
+
+ p = z_get_HTTP_Response(o, 200);
+ hres = p->u.HTTP_Response;
+ hres->content_buf = (char *) odr_malloc(o, sz + 1);
+ hres->content_len = sz;
+ fseek(f, 0L, SEEK_SET);
+ fread(hres->content_buf, 1, sz, f);
+ if ((cp = strrchr(fpath, '.'))) {
+ cp++;
+ if (!strcmp(cp, "png"))
+ ctype = "image/png";
+ else if (!strcmp(cp, "gif"))
+ ctype = "image/gif";
+ else if (!strcmp(cp, "xml"))
+ ctype = "text/xml";
+ else if (!strcmp(cp, "html"))
+ ctype = "text/html";
+ }
+ z_HTTP_header_add(o, &hres->headers, "Content-Type", ctype);
+ yaz_log(LOG_LOG, "OK send page %s size=%ld", fpath, sz);
+ }
+ fclose(f);
+ }
+ }
+#endif
+ if (!strcmp(hreq->path, "/"))
+ {
+ struct stat sbuf;
+ const char *doclink = "";
+ p = z_get_HTTP_Response(o, 200);
+ hres = p->u.HTTP_Response;
+ hres->content_buf = (char *) odr_malloc(o, 400);
+#ifdef DOCDIR
+ if (stat(DOCDIR "/yaz.html", &sbuf) == 0 && S_ISREG(sbuf.st_mode))
+ doclink = "<P><A HREF=\"/doc/yaz.html\">Documentation</A></P>";
+#endif
+ sprintf (hres->content_buf,
+ "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n"
+ "<HTML>\n"
+ " <HEAD>\n"
+ " <TITLE>YAZ " YAZ_VERSION "</TITLE>\n"
+ " </HEAD>\n"
+ " <BODY>\n"
+ " <P><A HREF=\"http://www.indexdata.dk/yaz/\">YAZ</A> "
+ YAZ_VERSION "</P>\n"
+ "%s"
+ " </BODY>\n"
+ "</HTML>\n", doclink);
+ hres->content_len = strlen(hres->content_buf);
+ z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/html");
+ }
+ if (!p)
+ {
+ p = z_get_HTTP_Response(o, 404);
+ }
+ }
+ else if (!strcmp(hreq->method, "POST"))
+ {
+#if HAVE_XSLT
+ const char *content_type = z_HTTP_header_lookup(hreq->headers,
+ "Content-Type");
+ const char *soap_action = z_HTTP_header_lookup(hreq->headers,
+ "SOAPAction");
+ if (content_type && soap_action &&
+ !yaz_strcmp_del("text/xml", content_type, "; "))
+ {
+ Z_SOAP *soap_package = 0;
+ int ret;
+ int http_code = 500;
+
+ static Z_SOAP_Handler soap_handlers[2] = {
+ {"http://www.loc.gov/zing/srw/v1.0/", 0,
+ (Z_SOAP_fun) yaz_srw_codec},
+ {0, 0, 0}
+ };
+
+ ret = z_soap_codec(assoc->decode, &soap_package,
+ &hreq->content_buf, &hreq->content_len,
+ soap_handlers);
+
+ if (!ret && soap_package->which == Z_SOAP_generic &&
+ soap_package->u.generic->no == 0)
+ {
+ /* SRW package */
+ Z_SRW_searchRetrieve *sr = soap_package->u.generic->p;
+
+ if (sr->which == Z_SRW_searchRetrieve_request)
+ {
+ Z_SRW_searchRetrieve *res =
+ yaz_srw_get(assoc->encode,
+ Z_SRW_searchRetrieve_response);
+
+ if (!sr->u.request->database)
+ {
+ const char *p0 = hreq->path, *p1;
+ if (*p0 == '/')
+ p0++;
+ p1 = strchr(p0, '?');
+ if (!p1)
+ p1 = p0 + strlen(p0);
+ if (p1 != p0)
+ {
+ sr->u.request->database =
+ odr_malloc(assoc->decode, p1 - p0 + 1);
+ memcpy (sr->u.request->database, p0, p1 - p0);
+ sr->u.request->database[p1 - p0] = '\0';
+ }
+ else
+ sr->u.request->database = "Default";
+ }
+ srw_bend_search(assoc, req, sr->u.request,
+ res->u.response);
+
+ soap_package->u.generic->p = res;
+ http_code = 200;
+ }
+ }
+
+ p = z_get_HTTP_Response(o, 200);
+ hres = p->u.HTTP_Response;
+ ret = z_soap_codec(assoc->encode, &soap_package,
+ &hres->content_buf, &hres->content_len,
+ soap_handlers);
+ hres->code = http_code;
+ z_HTTP_header_add(o, &hres->headers, "Content-Type", "text/xml");
+ }
+#endif
+ if (!p) /* still no response ? */
+ p = z_get_HTTP_Response(o, 500);
+ }
+ else
+ {
+ p = z_get_HTTP_Response(o, 405);
+ hres = p->u.HTTP_Response;
+
+ z_HTTP_header_add(o, &hres->headers, "Allow", "GET, POST");
+ }
+ hres = p->u.HTTP_Response;
+ if (!strcmp(hreq->version, "1.0"))
+ {
+ const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
+ if (v && !strcmp(v, "Keep-Alive"))
+ keepalive = 1;
+ else
+ keepalive = 0;
+ hres->version = "1.0";
+ }
+ else
+ {
+ const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
+ if (v && !strcmp(v, "close"))
+ keepalive = 0;
+ else
+ keepalive = 1;
+ hres->version = "1.1";
+ }
+ if (!keepalive)
+ {
+ z_HTTP_header_add(o, &hres->headers, "Connection", "close");
+ assoc->state = ASSOC_DEAD;
+ }
+ else
+ {
+ z_HTTP_header_add(o, &hres->headers, "Connection", "Keep-Alive");
+ }
+ process_gdu_response(assoc, req, p);
+}
+
+static void process_gdu_request(association *assoc, request *req)
+{
+ if (req->gdu_request->which == Z_GDU_Z3950)
+ {
+ char *msg = 0;
+ req->apdu_request = req->gdu_request->u.z3950;
+ if (process_z_request(assoc, req, &msg) < 0)
+ do_close_req(assoc, Z_Close_systemProblem, msg, req);
+ }
+ else if (req->gdu_request->which == Z_GDU_HTTP_Request)
+ process_http_request(assoc, req);
+ else
+ {
+ do_close_req(assoc, Z_Close_systemProblem, "bad protocol packet", req);
+ }
+}
+
/*
* Initiate request processing.
*/
-static int process_request(association *assoc, request *req, char **msg)
+static int process_z_request(association *assoc, request *req, char **msg)
{
int fd = -1;
Z_APDU *res;
if (res)
{
yaz_log(LOG_DEBUG, " result immediately available");
- retval = process_response(assoc, req, res);
+ retval = process_z_response(assoc, req, res);
}
else if (fd < 0)
{
yaz_log(LOG_WARN, "Serious programmer's lapse or bug");
abort();
}
- if ((res && process_response(assoc, req, res) < 0) || fd < 0)
+ if ((res && process_z_response(assoc, req, res) < 0) || fd < 0)
{
yaz_log(LOG_LOG, "Fatal error when talking to backend");
do_close(assoc, Z_Close_systemProblem, 0);
/*
* Encode response, and transfer the request structure to the outgoing queue.
*/
-static int process_response(association *assoc, request *req, Z_APDU *res)
+static int process_gdu_response(association *assoc, request *req, Z_GDU *res)
+{
+ odr_setbuf(assoc->encode, req->response, req->size_response, 1);
+
+ if (assoc->print && !z_GDU(assoc->print, &res, 0, 0))
+ {
+ yaz_log(LOG_WARN, "ODR print error: %s",
+ odr_errmsg(odr_geterror(assoc->print)));
+ odr_reset(assoc->print);
+ }
+ if (!z_GDU(assoc->encode, &res, 0, 0))
+ {
+ yaz_log(LOG_WARN, "ODR error when encoding response: %s",
+ odr_errmsg(odr_geterror(assoc->decode)));
+ return -1;
+ }
+ req->response = odr_getbuf(assoc->encode, &req->len_response,
+ &req->size_response);
+ odr_setbuf(assoc->encode, 0, 0, 0); /* don'txfree if we abort later */
+ odr_reset(assoc->encode);
+ req->state = REQUEST_IDLE;
+ request_enq(&assoc->outgoing, req);
+ /* turn the work over to the ir_session handler */
+ iochan_setflag(assoc->client_chan, EVENT_OUTPUT);
+ assoc->cs_put_mask = EVENT_OUTPUT;
+ /* Is there more work to be done? give that to the input handler too */
+#if 1
+ if (request_head(&assoc->incoming))
+ {
+ yaz_log (LOG_DEBUG, "more work to be done");
+ iochan_setevent(assoc->client_chan, EVENT_WORK);
+ }
+#endif
+ return 0;
+}
+
+/*
+ * Encode response, and transfer the request structure to the outgoing queue.
+ */
+static int process_z_response(association *assoc, request *req, Z_APDU *res)
{
odr_setbuf(assoc->encode, req->response, req->size_response, 1);
for (i = 0; i < req->num_databaseNames; i++)
yaz_log (LOG_LOG, "Database '%s'", req->databaseNames[i]);
}
- switch (req->query->which)
- {
- case Z_Query_type_1: case Z_Query_type_101:
- log_rpn_query (req->query->u.type_1);
- }
+ yaz_log_zquery(req->query);
+
if (assoc->init->bend_search)
{
bsrr->setname = req->resultSetName;
void bend_request_send (bend_association a, bend_request req, Z_APDU *res)
{
- process_response (a, req, res);
+ process_z_response (a, req, res);
}
bend_request bend_request_mk (bend_association a)
{
char *msg;
int r;
- r = process_request (a, req, &msg);
+ r = process_z_request (a, req, &msg);
if (r < 0)
- logf (LOG_WARN, "%s", msg);
+ yaz_log (LOG_WARN, "%s", msg);
return r;
}
{
bend_esrequest_rr esrequest;
- Z_ExtendedServicesRequest *req = reqb->apdu_request->u.extendedServicesRequest;
+ Z_ExtendedServicesRequest *req =
+ reqb->apdu_request->u.extendedServicesRequest;
Z_APDU *apdu = zget_APDU(assoc->encode, Z_APDU_extendedServicesResponse);
Z_ExtendedServicesResponse *resp = apdu->u.extendedServicesResponse;
yaz_log(LOG_DEBUG,"Send the result apdu");
return apdu;
}
+
projects / yaz-moved-to-github.git / blobdiff