--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/plugins/postgresql/service.c Sat Sep 24 16:26:10 2022 +0200
@@ -0,0 +1,113 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2022 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "service.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include "resource.h"
+
+int pg_query(pblock *pb, Session *sn, Request *rq) {
+ char *respool = pblock_findval("resource", pb);
+ char *query = pblock_findval("query", pb);
+
+ if(!respool) {
+ log_ereport(LOG_MISCONFIG, "pg-query: missing resource parameter");
+ return REQ_ABORTED;
+ }
+ if(!query) {
+ log_ereport(LOG_MISCONFIG, "pg-query: missing query parameter");
+ return REQ_ABORTED;
+ }
+
+ // Get the named resource and check if the PG connection works
+ ResourceData *res = resourcepool_lookup(sn, rq, respool, 0);
+ if(!res) {
+ log_ereport(LOG_FAILURE, "pg-query: cannot get resource '%s'", respool);
+ return REQ_ABORTED;
+ }
+
+ PGconn *connection = res->data;
+ if(pg_check_connection(LOG_FAILURE, respool, connection)) {
+ return REQ_ABORTED;
+ }
+
+ // execute query
+ PGresult *result = PQexec(connection, query);
+ if(!result) return REQ_ABORTED;
+
+ // start response
+ pblock_remove("content-type", rq->srvhdrs);
+ pblock_nvinsert("content-type", "text/html", rq->srvhdrs);
+
+ protocol_status(sn, rq, 200, NULL);
+ http_start_response(sn, rq);
+
+ // (html) header
+ net_printf(sn->csd, "%s", "<!DOCTYPE html>\n<html><head></head><body>\n");
+
+ int nfields = PQnfields(result);
+ if(nfields > 0) {
+ net_printf(sn->csd, "<table>\n<tr>\n");
+ for(int i=0;i<nfields;i++) {
+ char *fieldName = PQfname(result, i);
+ char *fieldNameEscaped = util_html_escape(fieldName);
+ if(fieldNameEscaped) {
+ net_printf(sn->csd, "<th>%s</th>\n", fieldNameEscaped);
+ FREE(fieldNameEscaped);
+ }
+ }
+ net_printf(sn->csd, "</tr>\n");
+
+ int nrows = PQntuples(result);
+ for(int r=0;r<nrows;r++) {
+ net_printf(sn->csd, "<tr>\n");
+ for(int c=0;c<nfields;c++) {
+ char *fieldValue = PQgetvalue(result, r, c);
+ char *fieldValueEscaped = util_html_escape(fieldValue);
+ if(fieldValueEscaped) {
+ net_printf(sn->csd, "<td>%s</td>\n", fieldValueEscaped);
+ FREE(fieldValueEscaped);
+ }
+ }
+ net_printf(sn->csd, "</tr>\n");
+ }
+
+
+ net_printf(sn->csd, "</table>\n");
+ } else {
+ net_printf(sn->csd, "<p>%s</p>\n", PQresStatus(PQresultStatus(result)));
+ }
+
+ net_printf(sn->csd, "%s", "</body></html>\n");
+
+ PQclear(result);
+
+ return REQ_PROCEED;
+}