X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/5b708e0cac7e269355f5b38480ad0256e5831a0d..dde24f58aaec900461e43e21e5e4597fa139d419:/lib/cgi.c

diff --git a/lib/cgi.c b/lib/cgi.c
index 9b4762f..42d599f 100644
--- a/lib/cgi.c
+++ b/lib/cgi.c
@@ -2,34 +2,27 @@
  * This file is part of DisOrder.
  * Copyright (C) 2004, 2005, 2007, 2008 Richard Kettlewell
  *
- * This program is free software; you can redistribute it and/or modify
+ * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 /** @file lib/cgi.c
  * @brief CGI tools
  */
 
-#include <config.h>
-#include "types.h"
+#include "common.h"
 
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
 #include <unistd.h>
 #include <errno.h>
-#include <stdio.h>
 
 #include "cgi.h"
 #include "mem.h"
@@ -207,6 +200,17 @@ const char *cgi_get(const char *name) {
   return v ? *v : NULL;
 }
 
+/** @brief Set a CGI argument */
+void cgi_set(const char *name, const char *value) {
+  value = xstrdup(value);
+  hash_add(cgi_args, name, &value, HASH_INSERT_OR_REPLACE);
+}
+
+/** @brief Clear CGI arguments */
+void cgi_clear(void) {
+  cgi_args = hash_new(sizeof (char *));
+}
+
 /** @brief Add SGML-style quoting
  * @param src String to quote (UTF-8)
  * @return Quoted string
@@ -252,54 +256,6 @@ char *cgi_sgmlquote(const char *src) {
   return d->vec;
 }
 
-/** @brief Write a CGI attribute
- * @param output Where to send output
- * @param name Attribute name
- * @param value Attribute value
- */
-void cgi_attr(struct sink *output, const char *name, const char *value) {
-  /* Try to avoid needless quoting */
-  if(!value[strspn(value, "abcdefghijklmnopqrstuvwxyz"
-		   "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-		   "0123456789")])
-    sink_printf(output, "%s=%s", name, value);
-  else
-    sink_printf(output, "%s=\"%s\"", name, cgi_sgmlquote(value));
-}
-
-/** @brief Write an open tag
- * @param output Where to send output
- * @param name Element name
- * @param ... Attribute name/value pairs
- *
- * The name/value pair list is terminated by a single (char *)0.
- */
-void cgi_opentag(struct sink *output, const char *name, ...) {
-  va_list ap;
-  const char *n, *v;
-   
-  sink_printf(output, "<%s", name);
-  va_start(ap, name);
-  while((n = va_arg(ap, const char *))) {
-    sink_printf(output, " ");
-    v = va_arg(ap, const char *);
-    if(v)
-      cgi_attr(output, n, v);
-    else
-      sink_printf(output, n);
-  }
-  va_end(ap);
-  sink_printf(output, ">");
-}
-
-/** @brief Write a close tag
- * @param output Where to send output
- * @param name Element name
- */
-void cgi_closetag(struct sink *output, const char *name) {
-  sink_printf(output, "</%s>", name);
-}
-
 /** @brief Construct a URL
  * @param url Base URL
  * @param ... Name/value pairs for constructed query string
@@ -333,6 +289,27 @@ char *cgi_makeurl(const char *url, ...) {
   return d.vec;
 }
 
+/** @brief Construct a URL from current parameters
+ * @param url Base URL
+ * @return Constructed URL
+ */
+char *cgi_thisurl(const char *url) {
+  struct dynstr d[1];
+  char **keys = hash_keys(cgi_args);
+  int n;
+
+  dynstr_init(d);
+  dynstr_append_string(d, url);
+  for(n = 0; keys[n]; ++n) {
+    dynstr_append(d, n ? '&' : '?');
+    dynstr_append_string(d, urlencodestring(keys[n]));
+    dynstr_append(d, '=');
+    dynstr_append_string(d, urlencodestring(cgi_get(keys[n])));
+  }
+  dynstr_terminate(d);
+  return d->vec;
+}
+
 /*
 Local Variables:
 c-basic-offset:2