X-Git-Url: https://git.octo.it/?p=collection4.git;a=blobdiff_plain;f=src%2Futils_cgi.c;h=785191422c9e449a2d85995581a53675dbf3f26a;hp=ed4c4468861e89dcac5a75cfe1a08f8448f59868;hb=1ca9e6ca7959d20780bb3bc336404549156415c7;hpb=5369fa3b5dc021e9b0bb58dd79f40d41a5f85c6c

diff --git a/src/utils_cgi.c b/src/utils_cgi.c
index ed4c446..7851914 100644
--- a/src/utils_cgi.c
+++ b/src/utils_cgi.c
@@ -1,3 +1,26 @@
+/**
+ * collection4 - utils_cgi.c
+ * Copyright (C) 2010  Florian octo Forster
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301  USA
+ *
+ * Authors:
+ *   Florian octo Forster <ff at octo.it>
+ **/
+
 #include "config.h"
 
 #include <stdlib.h>
@@ -81,6 +104,7 @@ static char *uri_unescape_copy (char *dest, const char *src, size_t n) /* {{{ */
       *dest_ptr = *src_ptr;
     }
 
+    n--;
     src_ptr++;
     dest_ptr++;
     *dest_ptr = 0;
@@ -88,7 +112,7 @@ static char *uri_unescape_copy (char *dest, const char *src, size_t n) /* {{{ */
 
   assert (*dest_ptr == 0);
   return (dest);
-} /* }}} char *uri_unescape */
+} /* }}} char *uri_unescape_copy */
 
 static char *uri_unescape (const char *string) /* {{{ */
 {
@@ -408,6 +432,7 @@ char *uri_escape_copy (char *dest, const char *src, size_t n) /* {{{ */
       return (dest);
     }
     else if ((((unsigned char) src[in]) < 32)
+        || (src[in] == ' ')
         || (src[in] == '&')
         || (src[in] == ';')
         || (src[in] == '?')
@@ -438,6 +463,16 @@ char *uri_escape_copy (char *dest, const char *src, size_t n) /* {{{ */
   return (dest);
 } /* }}} char *uri_escape_copy */
 
+char *uri_escape_buffer (char *buffer, size_t buffer_size) /* {{{ */
+{
+  char temp[buffer_size];
+
+  uri_escape_copy (temp, buffer, buffer_size);
+  memcpy (buffer, temp, buffer_size);
+
+  return (&buffer[0]);
+} /* }}} char *uri_escape_buffer */
+
 char *uri_escape (const char *string) /* {{{ */
 {
   char buffer[4096];
@@ -450,6 +485,89 @@ char *uri_escape (const char *string) /* {{{ */
   return (strdup (buffer));
 } /* }}} char *uri_escape */
 
+#define COPY_ENTITY(e) do {    \
+  size_t len = strlen (e);     \
+  if (dest_size < (len + 1))   \
+    break;                     \
+  strcpy (dest_ptr, (e));      \
+  dest_ptr += len;             \
+  dest_size -= len;            \
+} while (0)
+
+char *json_escape_copy (char *dest, const char *src, size_t n) /* {{{ */
+{
+  char *dest_ptr;
+  size_t dest_size;
+  size_t pos;
+
+  dest[0] = 0;
+  dest_ptr = dest;
+  dest_size = n;
+  for (pos = 0; src[pos] != 0; pos++)
+  {
+    if (src[pos] == '"')
+      COPY_ENTITY ("\\\"");
+    else if (src[pos] == '\\')
+      COPY_ENTITY ("\\\\");
+    else if (((uint8_t) src[pos]) < 32)
+    {
+      if (src[pos] == '\n')
+        COPY_ENTITY ("\\n");
+      else if (src[pos] == '\r')
+        COPY_ENTITY ("\\r");
+      else if (src[pos] == '\t')
+        COPY_ENTITY ("\\t");
+      else if (src[pos] == '\b')
+        COPY_ENTITY ("\\b");
+      else if (src[pos] == '\f')
+        COPY_ENTITY ("\\f");
+      else
+      {
+        char buffer[8];
+        sprintf (buffer, "\\u%04"PRIx8, (uint8_t) src[pos]);
+        buffer[sizeof (buffer) - 1] = 0;
+        COPY_ENTITY (buffer);
+      }
+    }
+    else
+    {
+      *dest_ptr = src[pos];
+      dest_ptr++;
+      dest_size--;
+      *dest_ptr = 0;
+    }
+
+    if (dest_size <= 1)
+      break;
+  }
+
+  return (dest);
+} /* }}} char *json_escape_copy */
+
+#undef COPY_ENTITY
+
+char *json_escape_buffer (char *buffer, size_t buffer_size)
+{
+  char temp[buffer_size];
+
+  json_escape_copy (temp, buffer, buffer_size);
+  memcpy (buffer, temp, buffer_size);
+
+  return (buffer);
+} /* }}} char *json_escape_buffer */
+
+char *json_escape (const char *string) /* {{{ */
+{
+  char buffer[4096];
+
+  if (string == NULL)
+    return (NULL);
+
+  json_escape_copy (buffer, string, sizeof (buffer));
+
+  return (strdup (buffer));
+} /* }}} char *json_escape */
+
 const char *script_name (void) /* {{{ */
 {
   char *ret;
@@ -481,11 +599,11 @@ int time_to_rfc1123 (time_t t, char *buffer, size_t buffer_size) /* {{{ */
 
 #define COPY_ENTITY(e) do {    \
   size_t len = strlen (e);     \
-  if (dest_size < (len + 1)) \
+  if (dest_size < (len + 1))   \
     break;                     \
-  strcpy (dest_ptr, (e));    \
-  dest_ptr += len;           \
-  dest_size -= len;          \
+  strcpy (dest_ptr, (e));      \
+  dest_ptr += len;             \
+  dest_size -= len;            \
 } while (0)
 
 char *html_escape_copy (char *dest, const char *src, size_t n) /* {{{ */
@@ -556,7 +674,7 @@ int html_print_page (const char *title, /* {{{ */
       "\n\n");
 
   if (title == NULL)
-    title = "c4: collection4 graph interface";
+    title = "C&#x2084;: collection4 graph interface";
 
   title_html = html_escape (title);
 
@@ -620,6 +738,7 @@ int html_print_page (const char *title, /* {{{ */
   printf ("</td>\n"
       "      </tr>\n"
       "    </table>\n"
+      "    <div class=\"footer\">"PACKAGE_STRING"</div>\n"
       "  </body>\n"
       "</html>\n");
 
@@ -630,7 +749,7 @@ int html_print_page (const char *title, /* {{{ */
 int html_print_logo (__attribute__((unused)) void *user_data) /* {{{ */
 {
   printf ("<a href=\"%s?action=list_graphs\" id=\"logo-canvas\">\n"
-      "  <h1>c<sup>4</sup></h1>\n"
+      "  <h1>C<sub>4</sub></h1>\n"
       "  <div id=\"logo-subscript\">collection&nbsp;4</div>\n"
       "</a>\n");
 
@@ -644,7 +763,7 @@ int html_print_search_box (__attribute__((unused)) void *user_data) /* {{{ */
   term_html = html_escape (param ("q"));
 
   printf ("<form action=\"%s\" method=\"get\" id=\"search-form\">\n"
-      "  <input type=\"hidden\" name=\"action\" value=\"list_graphs\" />\n"
+      "  <input type=\"hidden\" name=\"action\" value=\"search\" />\n"
       "  <input type=\"text\" name=\"q\" value=\"%s\" id=\"search-input\" />\n"
       "  <input type=\"submit\" name=\"button\" value=\"Search\" />\n"
       "</form>\n",