-const char cgi_rcs[] = "$Id: cgi.c,v 1.62 2002/04/10 19:59:46 jongfoster Exp $";
+const char cgi_rcs[] = "$Id: cgi.c,v 1.64 2002/04/24 02:17:21 oes Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/cgi.c,v $
*
* Revisions :
* $Log: cgi.c,v $
+ * Revision 1.64 2002/04/24 02:17:21 oes
+ * - Better descriptions for CGIs
+ * - Hide edit-actions, more shortcuts
+ * - Moved get_char_param, get_string_param and get_number_param here
+ * from cgiedit.c
+ *
+ * Revision 1.63 2002/04/15 19:06:43 jongfoster
+ * Typos
+ *
* Revision 1.62 2002/04/10 19:59:46 jongfoster
* Fixes to #include in templates:
* - Didn't close main file if loading an included template fails.
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
+#include <limits.h>
#include <assert.h>
#ifdef _WIN32
#endif
{ "show-status",
cgi_show_status,
- "Show information about the current configuration" },
+ "View & change the current configuration" },
{ "show-version",
cgi_show_version,
- "Show the source code version numbers" },
+ "View the source code version numbers" },
{ "show-request",
cgi_show_request,
- "Show the request headers." },
+ "View the request headers." },
{ "show-url-info",
cgi_show_url_info,
- "Show which actions apply to a URL and why" },
+ "Look up which actions apply to a URL and why" },
#ifdef FEATURE_CGI_EDIT_ACTIONS
{ "toggle",
cgi_toggle,
"Toggle Privoxy on or off" },
- { "edit-actions",
- cgi_edit_actions,
- "Edit the actions list" },
-
+ { "edit-actions", /* Edit the actions list */
+ cgi_edit_actions,
+ NULL },
{ "eaa", /* Shortcut for edit-actions-add-url-form */
cgi_edit_actions_add_url_form,
NULL },
{ "ear", /* Shortcut for edit-actions-remove-url-form */
cgi_edit_actions_remove_url_form,
NULL },
- { "eas", /* Shortcut for edit-actions-for-url */
+ { "eafu", /* Shortcut for edit-actions-for-url */
cgi_edit_actions_for_url,
NULL },
+ { "eas", /* Shortcut for edit-actions-submit */
+ cgi_edit_actions_submit,
+ NULL },
{ "easa", /* Shortcut for edit-actions-section-add */
cgi_edit_actions_section_add,
NULL },
}
+/*********************************************************************
+ *
+ * Function : get_char_param
+ *
+ * Description : Get a single-character parameter passed to a CGI
+ * function.
+ *
+ * Parameters :
+ * 1 : parameters = map of cgi parameters
+ * 2 : param_name = The name of the parameter to read
+ *
+ * Returns : Uppercase character on success, '\0' on error.
+ *
+ *********************************************************************/
+char get_char_param(const struct map *parameters,
+ const char *param_name)
+{
+ char ch;
+
+ assert(parameters);
+ assert(param_name);
+
+ ch = *(lookup(parameters, param_name));
+ if ((ch >= 'a') && (ch <= 'z'))
+ {
+ ch = ch - 'a' + 'A';
+ }
+
+ return ch;
+}
+
+
+/*********************************************************************
+ *
+ * Function : get_string_param
+ *
+ * Description : Get a string paramater, to be used as an
+ * ACTION_STRING or ACTION_MULTI paramater.
+ * Validates the input to prevent stupid/malicious
+ * users from corrupting their action file.
+ *
+ * Parameters :
+ * 1 : parameters = map of cgi parameters
+ * 2 : param_name = The name of the parameter to read
+ * 3 : pparam = destination for paramater. Allocated as
+ * part of the map "parameters", so don't free it.
+ * Set to NULL if not specified.
+ *
+ * Returns : JB_ERR_OK on success, or if the paramater
+ * was not specified.
+ * JB_ERR_MEMORY on out-of-memory.
+ * JB_ERR_CGI_PARAMS if the paramater is not valid.
+ *
+ *********************************************************************/
+jb_err get_string_param(const struct map *parameters,
+ const char *param_name,
+ const char **pparam)
+{
+ const char *param;
+ const char *s;
+ char ch;
+
+ assert(parameters);
+ assert(param_name);
+ assert(pparam);
+
+ *pparam = NULL;
+
+ param = lookup(parameters, param_name);
+ if (!*param)
+ {
+ return JB_ERR_OK;
+ }
+
+ if (strlen(param) >= CGI_PARAM_LEN_MAX)
+ {
+ /*
+ * Too long.
+ *
+ * Note that the length limit is arbitrary, it just seems
+ * sensible to limit it to *something*. There's no
+ * technical reason for any limit at all.
+ */
+ return JB_ERR_CGI_PARAMS;
+ }
+
+ /* Check every character to see if it's legal */
+ s = param;
+ while ((ch = *s++) != '\0')
+ {
+ if ( ((unsigned char)ch < (unsigned char)' ')
+ || (ch == '}') )
+ {
+ /* Probable hack attempt, or user accidentally used '}'. */
+ return JB_ERR_CGI_PARAMS;
+ }
+ }
+
+ /* Success */
+ *pparam = param;
+
+ return JB_ERR_OK;
+}
+
+
+/*********************************************************************
+ *
+ * Function : get_number_param
+ *
+ * Description : Get a non-negative integer from the parameters
+ * passed to a CGI function.
+ *
+ * Parameters :
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : parameters = map of cgi parameters
+ * 3 : name = Name of CGI parameter to read
+ * 4 : pvalue = destination for value.
+ * Set to -1 on error.
+ *
+ * Returns : JB_ERR_OK on success
+ * JB_ERR_MEMORY on out-of-memory
+ * JB_ERR_CGI_PARAMS if the parameter was not specified
+ * or is not valid.
+ *
+ *********************************************************************/
+jb_err get_number_param(struct client_state *csp,
+ const struct map *parameters,
+ char *name,
+ unsigned *pvalue)
+{
+ const char *param;
+ char ch;
+ unsigned value;
+
+ assert(csp);
+ assert(parameters);
+ assert(name);
+ assert(pvalue);
+
+ *pvalue = 0;
+
+ param = lookup(parameters, name);
+ if (!*param)
+ {
+ return JB_ERR_CGI_PARAMS;
+ }
+
+ /* We don't use atoi because I want to check this carefully... */
+
+ value = 0;
+ while ((ch = *param++) != '\0')
+ {
+ if ((ch < '0') || (ch > '9'))
+ {
+ return JB_ERR_CGI_PARAMS;
+ }
+
+ ch -= '0';
+
+ /* Note:
+ *
+ * <limits.h> defines UINT_MAX
+ *
+ * (UINT_MAX - ch) / 10 is the largest number that
+ * can be safely multiplied by 10 then have ch added.
+ */
+ if (value > ((UINT_MAX - (unsigned)ch) / 10U))
+ {
+ return JB_ERR_CGI_PARAMS;
+ }
+
+ value = value * 10 + ch;
+ }
+
+ /* Success */
+ *pvalue = value;
+
+ return JB_ERR_OK;
+
+}
+
+
/*********************************************************************
*
* Function : error_response
}
+/*********************************************************************
+ *
+ * Function : add_help_link
+ *
+ * Description : Produce a copy of the string given as item,
+ * embedded in an HTML link to its corresponding
+ * section (item name in uppercase) in the configuration
+ * chapter of the user manual, (whose URL is given in
+ * the config and defaults to our web site).
+ *
+ * Parameters :
+ * 1 : item = item (will NOT be free()d.)
+ * It is assumed to be HTML-safe.
+ *
+ * Returns : String with item embedded in link, or NULL on
+ * out-of-memory
+ *
+ *********************************************************************/
+char *add_help_link(const char *item,
+ struct configuration_spec *config)
+{
+ char *result = strdup("");
+
+ if (!item) return NULL;
+
+ string_append(&result, "<a href=\"");
+ string_append(&result, config->usermanual);
+ string_append(&result, HELP_LINK_PREFIX);
+ string_join (&result, string_toupper(item));
+ string_append(&result, "\">");
+ string_append(&result, item);
+ string_append(&result, "</a> ");
+
+ return result;
+}
+
+
/*********************************************************************
*
* Function : get_http_time
if (!err) err = map(exports, "default-cgi", 1, html_encode(CGI_PREFIX), 0);
if (!err) err = map(exports, "menu", 1, make_menu(caller), 0);
if (!err) err = map(exports, "code-status", 1, CODE_STATUS, 1);
+ if (!err) err = map(exports, "user-manual", 1, csp->config->usermanual ,1);
+ if (!err) err = map(exports, "helplink", 1, HELP_LINK_PREFIX ,1);
if (!err) err = map_conditional(exports, "enabled-display", g_bToggleIJB);
snprintf(buf, 20, "%d", csp->config->hport);
* Function : make_menu
*
* Description : Returns an HTML-formatted menu of the available
- * unhidden CGIs, excluding the one given in <self>.
+ * unhidden CGIs, excluding the one given in <self>
*
- * Parameters : self = name of CGI to leave out, can be NULL
+ * Parameters : self = name of CGI to leave out, can be NULL for
+ * complete listing.
*
* Returns : menu string, or NULL on out-of-memory error.
*
*
* Function : dump_map
*
- * Description : HTML-dump a map for debugging
+ * Description : HTML-dump a map for debugging (as table)
*
* Parameters :
* 1 : the_map = map to dump
projects / privoxy.git / blobdiff