-const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.9 2002/01/17 20:56:22 jongfoster Exp $";
+const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.88 2016/02/26 12:29:38 fabiankeil Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/cgiedit.c,v $
*
* Purpose : CGI-based actionsfile editor.
*
- * Functions declared include: cgi_edit_*
- *
* NOTE: The CGIs in this file use parameter names
* such as "f" and "s" which are really *BAD* choices.
* However, I'm trying to save bytes in the
*
* Stick to the short names in this file for consistency.
*
- * Copyright : Written by and Copyright (C) 2001 the SourceForge
- * IJBSWA team. http://ijbswa.sourceforge.net
+ * Copyright : Written by and Copyright (C) 2001-2014 the
+ * Privoxy team. http://www.privoxy.org/
*
* Based on the Internet Junkbuster originally written
* by and Copyright (C) 1997 Anonymous Coders and
* or write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
- * Revisions :
- * $Log: cgiedit.c,v $
- * Revision 1.9 2002/01/17 20:56:22 jongfoster
- * Replacing hard references to the URL of the config interface
- * with #defines from project.h
- *
- * Revision 1.8 2001/11/30 23:35:51 jongfoster
- * Renaming actionsfile to ijb.action
- *
- * Revision 1.7 2001/11/13 00:28:24 jongfoster
- * - Renaming parameters from edit-actions-for-url so that they only
- * contain legal JavaScript characters. If we wanted to write
- * JavaScript that worked with Netscape 4, this is nessacery.
- * (Note that at the moment the JavaScript doesn't actually work
- * with Netscape 4, but now this is purely a template issue, not
- * one affecting code).
- * - Adding new CGIs for use by non-JavaScript browsers:
- * edit-actions-url-form
- * edit-actions-add-url-form
- * edit-actions-remove-url-form
- * - Fixing || bug.
- *
- * Revision 1.6 2001/10/29 03:48:09 david__schmidt
- * OS/2 native needed a snprintf() routine. Added one to miscutil, brackedted
- * by and __OS2__ ifdef.
- *
- * Revision 1.5 2001/10/25 03:40:48 david__schmidt
- * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
- * threads to call select() simultaneously. So, it's time to do a real, live,
- * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
- * (native). Both versions will work, but using __OS2__ offers multi-threading.
- *
- * Revision 1.4 2001/10/23 21:48:19 jongfoster
- * Cleaning up error handling in CGI functions - they now send back
- * a HTML error page and should never cause a FATAL error. (Fixes one
- * potential source of "denial of service" attacks).
- *
- * CGI actions file editor that works and is actually useful.
- *
- * Ability to toggle JunkBuster remotely using a CGI call.
- *
- * You can turn off both the above features in the main configuration
- * file, e.g. if you are running a multi-user proxy.
- *
- * Revision 1.3 2001/10/14 22:12:49 jongfoster
- * New version of CGI-based actionsfile editor.
- * Major changes, including:
- * - Completely new file parser and file output routines
- * - edit-actions CGI renamed edit-actions-for-url
- * - All CGIs now need a filename parameter, except for...
- * - New CGI edit-actions which doesn't need a filename,
- * to allow you to start the editor up.
- * - edit-actions-submit now works, and now automatically
- * redirects you back to the main edit-actions-list handler.
- *
- * Revision 1.2 2001/09/16 17:05:14 jongfoster
- * Removing unused #include showarg.h
- *
- * Revision 1.1 2001/09/16 15:47:37 jongfoster
- * First version of CGI-based edit interface. This is very much a
- * work-in-progress, and you can't actually use it to edit anything
- * yet. You must #define FEATURE_CGI_EDIT_ACTIONS for these changes
- * to have any effect.
- *
- *
**********************************************************************/
-\f
+
#include "config.h"
#include <ctype.h>
#include <string.h>
#include <assert.h>
-#include <limits.h>
#include <sys/stat.h>
-#ifdef _WIN32
-#define snprintf _snprintf
-#endif /* def _WIN32 */
-
#include "project.h"
#include "cgi.h"
#include "cgiedit.h"
#include "miscutil.h"
#include "errlog.h"
#include "loaders.h"
+#ifdef FEATURE_TOGGLE
+/* loadcfg.h is for global_toggle_state only */
#include "loadcfg.h"
-/* loadcfg.h is for g_bToggleIJB only */
+#endif /* def FEATURE_TOGGLE */
#include "urlmatch.h"
const char cgiedit_h_rcs[] = CGIEDIT_H_VERSION;
#ifdef FEATURE_CGI_EDIT_ACTIONS
+/**
+ * A line in an editable_file.
+ */
struct file_line
{
+ /** Next entry in the linked list */
struct file_line * next;
+
+ /** The raw data, to write out if this line is unmodified. */
char * raw;
+
+ /** Comments and/or whitespace to put before this line if it's modified
+ and then written out. */
char * prefix;
+
+ /** The actual data, as a string. Line continuation and comment removal
+ are performed on the data read from file before it's stored here, so
+ it will be a single line of data. */
char * unprocessed;
+
+ /** The type of data on this line. One of the FILE_LINE_xxx constants. */
int type;
+ /** The actual data, processed into some sensible data type. */
union
{
+
+ /** An action specification. */
struct action_spec action[1];
+ /** A name=value pair. */
struct
{
- char * name;
- char * svalue;
- int ivalue;
- } setting;
-
- /* Add more data types here... e.g.
+ /** The name in the name=value pair. */
+ char * name;
- struct url_spec url[1];
+ /** The value in the name=value pair, as a string. */
+ char * svalue;
- struct
- {
- struct action_spec action[1];
- const char * name;
- } alias;
+ /** The value in the name=value pair, as an integer. */
+ int ivalue;
- */
+ } setting;
} data;
+
};
+/** This file_line has not been processed yet. */
#define FILE_LINE_UNPROCESSED 1
+
+/** This file_line is blank. Can only appear at the end of a file, due to
+ the way the parser works. */
#define FILE_LINE_BLANK 2
+
+/** This file_line says {{alias}}. */
#define FILE_LINE_ALIAS_HEADER 3
+
+/** This file_line defines an alias. */
#define FILE_LINE_ALIAS_ENTRY 4
+
+/** This file_line defines an {action}. */
#define FILE_LINE_ACTION 5
+
+/** This file_line specifies a URL pattern. */
#define FILE_LINE_URL 6
+
+/** This file_line says {{settings}}. */
#define FILE_LINE_SETTINGS_HEADER 7
+
+/** This file_line is in a {{settings}} block. */
#define FILE_LINE_SETTINGS_ENTRY 8
+
+/** This file_line says {{description}}. */
#define FILE_LINE_DESCRIPTION_HEADER 9
+
+/** This file_line is in a {{description}} block. */
#define FILE_LINE_DESCRIPTION_ENTRY 10
+/*
+ * Number of file modification time mismatches
+ * before the CGI editor gets turned off.
+ */
+#define ACCEPTABLE_TIMESTAMP_MISMATCHES 3
+/**
+ * A configuration file, in a format that can be edited and written back to
+ * disk.
+ */
struct editable_file
{
- struct file_line * lines;
- const char * filename; /* Full pathname - e.g. "/etc/junkbuster/wibble.action" */
- const char * identifier; /* Filename stub - e.g. "wibble". Use for CGI param. */
- /* Pre-encoded with url_encode() for ease of use. */
- const char * version_str; /* Last modification time, as a string. For CGI param */
- /* Can be used in URL without using url_param(). */
- unsigned version; /* Last modification time - prevents chaos with
- * the browser's "back" button. Note that this is a
- * time_t cast to an unsigned. When comparing, always
- * cast the time_t to an unsigned, and *NOT* vice-versa.
- * This may lose the top few bits, but they're not
- * significant anyway.
- */
- int newline; /* Newline convention - one of the NEWLINE_xxx constants.
- * Note that changing this after the file has been
- * read in will cause a mess.
- */
- struct file_line * parse_error; /* On parse error, this is the offending line. */
- const char * parse_error_text; /* On parse error, this is the problem.
- * (Statically allocated) */
+ struct file_line * lines; /**< The contents of the file. A linked list of lines. */
+ const char * filename; /**< Full pathname - e.g. "/etc/privoxy/wibble.action". */
+ unsigned identifier; /**< The file name's position in csp->config->actions_file[]. */
+ const char * version_str; /**< Last modification time, as a string. For CGI param. */
+ /**< Can be used in URL without using url_param(). */
+ unsigned version; /**< Last modification time - prevents chaos with
+ the browser's "back" button. Note that this is a
+ time_t cast to an unsigned. When comparing, always
+ cast the time_t to an unsigned, and *NOT* vice-versa.
+ This may lose the top few bits, but they're not
+ significant anyway. */
+ int newline; /**< Newline convention - one of the NEWLINE_xxx constants.
+ Note that changing this after the file has been
+ read in will cause a mess. */
+ struct file_line * parse_error; /**< On parse error, this is the offending line. */
+ const char * parse_error_text; /**< On parse error, this is the problem.
+ (Statically allocated) */
+};
+
+/**
+ * Information about the filter types.
+ * Used for macro replacement in cgi_edit_actions_for_url.
+ */
+struct filter_type_info
+{
+ const int multi_action_index; /**< The multi action index as defined in project.h */
+ const char *macro_name; /**< Name of the macro that has to be replaced
+ with the prepared templates.
+ For example "content-filter-params" */
+ const char *type; /**< Name of the filter type,
+ for example "server-header-filter". */
+ /* XXX: check if these two can be combined. */
+ const char *disable_all_option; /**< Name of the catch-all radio option that has
+ to be checked or unchecked for this filter type. */
+ const char *disable_all_param; /**< Name of the parameter that causes all filters of
+ this type to be disabled. */
+ const char *abbr_type; /**< Abbreviation of the filter type, usually the
+ first or second character capitalized */
+ const char *anchor; /**< Anchor for the User Manual link,
+ for example "SERVER-HEADER-FILTER" */
+};
+
+/* Accessed by index, keep the order in the way the FT_ macros are defined. */
+static const struct filter_type_info filter_type_info[] =
+{
+ {
+ ACTION_MULTI_FILTER,
+ "content-filter-params", "filter",
+ "filter-all", "filter_all",
+ "F", "FILTER"
+ },
+ {
+ ACTION_MULTI_CLIENT_HEADER_FILTER,
+ "client-header-filter-params", "client-header-filter",
+ "client-header-filter-all", "client_header_filter_all",
+ "C", "CLIENT-HEADER-FILTER"
+ },
+ {
+ ACTION_MULTI_SERVER_HEADER_FILTER,
+ "server-header-filter-params", "server-header-filter",
+ "server-header-filter-all", "server_header_filter_all",
+ "S", "SERVER-HEADER-FILTER"
+ },
+ {
+ ACTION_MULTI_CLIENT_HEADER_TAGGER,
+ "client-header-tagger-params", "client-header-tagger",
+ "client-header-tagger-all", "client_header_tagger_all",
+ "L", "CLIENT-HEADER-TAGGER"
+ },
+ {
+ ACTION_MULTI_SERVER_HEADER_TAGGER,
+ "server-header-tagger-params", "server-header-tagger",
+ "server-header-tagger-all", "server_header_tagger_all",
+ "E", "SERVER-HEADER-TAGGER"
+ },
+#ifdef FEATURE_EXTERNAL_FILTERS
+ {
+ ACTION_MULTI_EXTERNAL_FILTER,
+ "external-content-filter-params", "external-filter",
+ "external-content-filter-all", "external_content_filter_all",
+ "E", "EXTERNAL-CONTENT-FILTER"
+ },
+#endif
};
/* FIXME: Following non-static functions should be prototyped in .h or made static */
jb_err edit_read_file(struct client_state *csp,
const struct map *parameters,
int require_version,
- const char *suffix,
struct editable_file **pfile);
jb_err edit_write_file(struct editable_file * file);
void edit_free_file(struct editable_file * file);
jb_err cgi_error_file(struct client_state *csp,
struct http_response *rsp,
const char *filename);
-jb_err cgi_error_disabled(struct client_state *csp,
- struct http_response *rsp);
+jb_err cgi_error_file_read_only(struct client_state *csp,
+ struct http_response *rsp,
+ const char *filename);
/* Internal arbitrary config file support functions */
static jb_err edit_read_file_lines(FILE *fp, struct file_line ** pfile, int *newline);
static jb_err split_line_on_equals(const char * line, char ** pname, char ** pvalue);
/* Internal parameter parsing functions */
-static jb_err get_file_name_param(struct client_state *csp,
- const struct map *parameters,
- const char *param_name,
- const char *suffix,
- char **pfilename,
- const char **pparam);
-static jb_err get_number_param(struct client_state *csp,
- const struct map *parameters,
- char *name,
- unsigned *pvalue);
static jb_err get_url_spec_param(struct client_state *csp,
const struct map *parameters,
const char *name,
char **pvalue);
+
/* Internal actionsfile <==> HTML conversion functions */
static jb_err map_radio(struct map * exports,
const char * optionname,
const char * values,
- char value);
+ int value);
static jb_err actions_to_radio(struct map * exports,
const struct action_spec *action);
static jb_err actions_from_radio(const struct map * parameters,
static jb_err map_copy_parameter_html(struct map *out,
const struct map *in,
const char *name);
-static jb_err map_copy_parameter_url(struct map *out,
- const struct map *in,
- const char *name);
+static jb_err get_file_name_param(struct client_state *csp,
+ const struct map *parameters,
+ const char *param_name,
+ const char **pfilename);
+
+/* Internal convenience functions */
+static char *section_target(const unsigned sectionid);
/*********************************************************************
*
- * Function : map_copy_parameter_html
+ * Function : section_target
*
- * Description : Copy a CGI parameter from one map to another, HTML
- * encoding it.
+ * Description : Given an unsigned (section id) n, produce a dynamically
+ * allocated string of the form #l<n>, for use in link
+ * targets.
+ *
+ * XXX: The hash should be moved into the templates
+ * to make this function more generic and render
+ * stringify() obsolete.
*
* Parameters :
- * 1 : out = target map
- * 2 : in = source map
- * 3 : name = name of cgi parameter to copy
+ * 1 : sectionid = start line number of section
*
- * Returns : JB_ERR_OK on success
- * JB_ERR_MEMORY on out-of-memory
- * JB_ERR_CGI_PARAMS if the parameter doesn't exist
- * in the source map
+ * Returns : String with link target, or NULL if out of
+ * memory
*
*********************************************************************/
-static jb_err map_copy_parameter_html(struct map *out,
- const struct map *in,
- const char *name)
+static char *section_target(const unsigned sectionid)
{
- const char * value;
- jb_err err;
+ char buf[30];
- assert(out);
- assert(in);
- assert(name);
+ snprintf(buf, sizeof(buf), "#l%u", sectionid);
+ return(strdup(buf));
- value = lookup(in, name);
- err = map(out, name, 1, html_encode(value), 0);
+}
- if (err)
- {
- /* Out of memory */
- return err;
- }
- else if (*value == '\0')
- {
- return JB_ERR_CGI_PARAMS;
- }
- else
- {
- return JB_ERR_OK;
- }
+
+/*********************************************************************
+ *
+ * Function : stringify
+ *
+ * Description : Convert a number into a dynamically allocated string.
+ *
+ * Parameters :
+ * 1 : number = The number to convert.
+ *
+ * Returns : String with link target, or NULL if out of memory
+ *
+ *********************************************************************/
+static char *stringify(const unsigned number)
+{
+ char buf[6];
+
+ snprintf(buf, sizeof(buf), "%u", number);
+ return strdup(buf);
}
*
* Function : map_copy_parameter_html
*
- * Description : Copy a CGI parameter from one map to another, URL
+ * Description : Copy a CGI parameter from one map to another, HTML
* encoding it.
*
* Parameters :
- * 1 : out = target map
- * 2 : in = source map
- * 3 : name = name of cgi parameter to copy
+ * 1 : out = target map
+ * 2 : in = source map
+ * 3 : name = name of cgi parameter to copy
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
* in the source map
*
*********************************************************************/
-static jb_err map_copy_parameter_url(struct map *out,
- const struct map *in,
- const char *name)
+static jb_err map_copy_parameter_html(struct map *out,
+ const struct map *in,
+ const char *name)
{
const char * value;
jb_err err;
assert(name);
value = lookup(in, name);
- err = map(out, name, 1, url_encode(value), 0);
+ err = map(out, name, 1, html_encode(value), 0);
if (err)
{
* edit-actions-url
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters
- * f : (filename) Identifies the file to edit
+ * i : (action index) Identifies the file to edit
* v : (version) File's last-modified time
* p : (pattern) Line number of pattern to edit
*
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
+ unsigned section_start_line_number = 0;
jb_err err;
assert(csp);
for (line_number = 1; (cur_line != NULL) && (line_number < patternid); line_number++)
{
+ if (cur_line->type == FILE_LINE_ACTION)
+ {
+ section_start_line_number = line_number;
+ }
cur_line = cur_line->next;
}
if ( (cur_line == NULL)
|| (line_number != patternid)
- || (patternid < 1)
+ || (patternid < 1U)
|| (cur_line->type != FILE_LINE_URL))
{
/* Invalid "patternid" parameter */
return JB_ERR_MEMORY;
}
- err = map(exports, "f", 1, file->identifier, 1);
+ err = map(exports, "f", 1, stringify(file->identifier), 0);
if (!err) err = map(exports, "v", 1, file->version_str, 1);
if (!err) err = map(exports, "p", 1, url_encode(lookup(parameters, "p")), 0);
if (!err) err = map(exports, "u", 1, html_encode(cur_line->unprocessed), 0);
+ if (!err) err = map(exports, "jumptarget", 1, section_target(section_start_line_number), 0);
edit_free_file(file);
* edit-actions-url
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* f : (filename) Identifies the file to edit
* edit-actions-url
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters :
- * f : (filename) Identifies the file to edit
+ * f : (number) The action file identifier.
* v : (version) File's last-modified time
* p : (pattern) Line number of pattern to edit
*
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
+ unsigned section_start_line_number = 0;
jb_err err;
assert(csp);
for (line_number = 1; (cur_line != NULL) && (line_number < patternid); line_number++)
{
+ if (cur_line->type == FILE_LINE_ACTION)
+ {
+ section_start_line_number = line_number;
+ }
cur_line = cur_line->next;
}
if ( (cur_line == NULL)
|| (line_number != patternid)
- || (patternid < 1)
+ || (patternid < 1U)
|| (cur_line->type != FILE_LINE_URL))
{
/* Invalid "patternid" parameter */
return JB_ERR_MEMORY;
}
- err = map(exports, "f", 1, file->identifier, 1);
+ err = map(exports, "f", 1, stringify(file->identifier), 0);
if (!err) err = map(exports, "v", 1, file->version_str, 1);
- if (!err) err = map(exports, "s", 1, url_encode(lookup(parameters, "s")), 0);
+ if (!err) err = map(exports, "p", 1, url_encode(lookup(parameters, "p")), 0);
if (!err) err = map(exports, "u", 1, html_encode(cur_line->unprocessed), 0);
+ if (!err) err = map(exports, "jumptarget", 1, section_target(section_start_line_number), 0);
+ if (!err) err = map(exports, "actions-file", 1, html_encode(file->filename), 0);
edit_free_file(file);
* Description : Write a complete file to disk.
*
* Parameters :
- * 1 : filename = File to write to.
- * 2 : file = Data structure to write.
+ * 1 : file = File to write.
*
* Returns : JB_ERR_OK on success
* JB_ERR_FILE on error writing to file.
assert(file);
assert(file->filename);
- if (NULL == (fp = fopen(file->filename, "wt")))
+ if (NULL == (fp = fopen(file->filename, "wb")))
{
return JB_ERR_FILE;
}
}
if (cur_line->unprocessed)
{
- /* This should be a single line - sanity check. */
- assert(NULL == strchr(cur_line->unprocessed, '\r'));
- assert(NULL == strchr(cur_line->unprocessed, '\n'));
if (NULL != strchr(cur_line->unprocessed, '#'))
{
/* Must quote '#' characters */
int numhash = 0;
- int len;
+ size_t len;
char * src;
char * dest;
char * str;
assert(numhash > 0);
/* Allocate new memory for string */
- len = strlen(cur_line->unprocessed);
- if (NULL == (str = malloc(len + 1 + numhash)))
- {
- /* Uh oh, just trashed file! */
- fclose(fp);
- return JB_ERR_MEMORY;
- }
+ len = strlen(cur_line->unprocessed) + (size_t)numhash;
+ str = malloc_or_die(len + 1);
- /* Loop through string from end */
- src = cur_line->unprocessed + len;
- dest = str + len + numhash;
- for ( ; len >= 0; len--)
+ /* Copy string but quote hashes */
+ src = cur_line->unprocessed;
+ dest = str;
+ while (*src)
{
- if ((*dest-- = *src--) == '#')
+ if (*src == '#')
{
- *dest-- = '\\';
+ *dest++ = '\\';
numhash--;
assert(numhash >= 0);
}
+ *dest++ = *src++;
}
+ *dest = '\0';
+
assert(numhash == 0);
- assert(src + 1 == cur_line->unprocessed);
- assert(dest + 1 == str);
+ assert(strlen(str) == len);
+ assert(str == dest - len);
+ assert(src - len <= cur_line->unprocessed);
+
+ if ((strlen(str) != len) || (numhash != 0))
+ {
+ /*
+ * Escaping didn't work as expected, go spread the news.
+ * Only reached in non-debugging builds.
+ */
+ log_error(LOG_LEVEL_ERROR,
+ "Looks like hash escaping failed. %s might be corrupted now.",
+ file->filename);
+ }
if (fputs(str, fp) < 0)
{
/* Correct file->version_str */
freez(file->version_str);
- snprintf(version_buf, 22, "%u", file->version);
- version_buf[21] = '\0';
- file->version_str = strdup(version_buf);
- if (version_buf == NULL)
- {
- return JB_ERR_MEMORY;
- }
+ snprintf(version_buf, sizeof(version_buf), "%u", file->version);
+ version_buf[sizeof(version_buf)-1] = '\0';
+ file->version_str = strdup_or_die(version_buf);
return JB_ERR_OK;
}
}
edit_free_file_lines(file->lines);
- freez(file->filename);
- freez(file->identifier);
freez(file->version_str);
file->version = 0;
file->parse_error_text = NULL; /* Statically allocated */
/*********************************************************************
*
- * Function : edit_free_file
+ * Function : edit_free_file_lines
*
* Description : Free an entire linked list of file lines.
*
* Description : Match an actions file {{header}} line
*
* Parameters :
- * 1 : line - String from file
- * 2 : name - Header to match against
+ * 1 : line = String from file
+ * 2 : name = Header to match against
*
* Returns : 0 iff they match.
*
*********************************************************************/
static int match_actions_file_header_line(const char * line, const char * name)
{
- int len;
+ size_t len;
assert(line);
assert(name);
line += 2;
/* Look for optional whitespace */
- while ( (*line == ' ') || (*line == '\t') )
+ while ((*line == ' ') || (*line == '\t'))
{
line++;
}
line += len;
/* Look for optional whitespace */
- while ( (*line == ' ') || (*line == '\t') )
+ while ((*line == ' ') || (*line == '\t'))
{
line++;
}
* Description : Match an actions file {{header}} line
*
* Parameters :
- * 1 : line - String from file. Must not start with
+ * 1 : line = String from file. Must not start with
* whitespace (else infinite loop!)
- * 2 : name - Destination for name
- * 2 : name - Destination for value
+ * 2 : pname = Destination for name
+ * 2 : pvalue = Destination for value
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
{
const char * name_end;
const char * value_start;
- int name_len;
+ size_t name_len;
assert(line);
assert(pname);
name_end--;
}
- name_len = name_end - line + 1; /* Length excluding \0 */
- if (NULL == (*pname = (char *) malloc(name_len + 1)))
- {
- return JB_ERR_MEMORY;
- }
+ name_len = (size_t)(name_end - line) + 1; /* Length excluding \0 */
+ *pname = malloc_or_die(name_len + 1);
strncpy(*pname, line, name_len);
(*pname)[name_len] = '\0';
jb_err edit_parse_actions_file(struct editable_file * file)
{
struct file_line * cur_line;
- int len;
+ size_t len;
const char * text; /* Text from a line */
char * name; /* For lines of the form name=value */
char * value; /* For lines of the form name=value */
/* Skip leading blanks. Should only happen if file is
* empty (which is valid, but pointless).
*/
- while ( (cur_line != NULL)
- && (cur_line->unprocessed[0] == '\0') )
+ while ((cur_line != NULL)
+ && (cur_line->unprocessed[0] == '\0'))
{
/* Blank line */
cur_line->type = FILE_LINE_BLANK;
cur_line = cur_line->next;
}
- if ( (cur_line != NULL)
- && (cur_line->unprocessed[0] != '{') )
+ if ((cur_line != NULL)
+ && (cur_line->unprocessed[0] != '{'))
{
/* File doesn't start with a header */
file->parse_error = cur_line;
return JB_ERR_PARSE;
}
- if ( (cur_line != NULL) && (0 ==
- match_actions_file_header_line(cur_line->unprocessed, "settings") ) )
+ if ((cur_line != NULL) && (0 ==
+ match_actions_file_header_line(cur_line->unprocessed, "settings")))
{
cur_line->type = FILE_LINE_SETTINGS_HEADER;
}
}
- if ( (cur_line != NULL) && (0 ==
- match_actions_file_header_line(cur_line->unprocessed, "description") ) )
+ if ((cur_line != NULL) && (0 ==
+ match_actions_file_header_line(cur_line->unprocessed, "description")))
{
cur_line->type = FILE_LINE_DESCRIPTION_HEADER;
}
}
- if ( (cur_line != NULL) && (0 ==
- match_actions_file_header_line(cur_line->unprocessed, "alias") ) )
+ if ((cur_line != NULL) && (0 ==
+ match_actions_file_header_line(cur_line->unprocessed, "alias")))
{
cur_line->type = FILE_LINE_ALIAS_HEADER;
err = split_line_on_equals(cur_line->unprocessed, &name, &value);
if (err == JB_ERR_MEMORY)
{
+ free_alias_list(alias_list);
return err;
}
else if (err != JB_ERR_OK)
/* Line does not contain a name=value pair */
file->parse_error = cur_line;
file->parse_error_text = "Expected a name=value pair on this {{alias}} line, but couldn't find one.";
+ free_alias_list(alias_list);
return JB_ERR_PARSE;
}
- if ((new_alias = zalloc(sizeof(*new_alias))) == NULL)
- {
- /* Out of memory */
- free(name);
- free(value);
- free_alias_list(alias_list);
- return JB_ERR_MEMORY;
- }
+ new_alias = zalloc_or_die(sizeof(*new_alias));
err = get_actions(value, alias_list, new_alias->action);
if (err)
return JB_ERR_PARSE;
}
- while ( (*text == ' ') || (*text == '\t') )
+ while ((*text == ' ') || (*text == '\t'))
{
text++;
len--;
}
- while ( (len > 0)
- && ( (text[len - 1] == ' ')
- || (text[len - 1] == '\t') ) )
+ while ((len > (size_t)0)
+ && ((text[len - 1] == ' ')
+ || (text[len - 1] == '\t')))
{
len--;
}
cur_line->type = FILE_LINE_ACTION;
/* Remove {} and make copy */
- if (NULL == (value = (char *) malloc(len + 1)))
- {
- /* Out of memory */
- free_alias_list(alias_list);
- return JB_ERR_MEMORY;
- }
+ value = malloc_or_die(len + 1);
strncpy(value, text, len);
value[len] = '\0';
* at EOF but it will not have been closed.
* 2 : pfile = Destination for a linked list of file_lines.
* Will be set to NULL on error.
+ * 3 : newline = How to handle newlines.
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
*pfile = NULL;
- cur_line = first_line = zalloc(sizeof(struct file_line));
- if (cur_line == NULL)
- {
- return JB_ERR_MEMORY;
- }
+ cur_line = first_line = zalloc_or_die(sizeof(struct file_line));
cur_line->type = FILE_LINE_UNPROCESSED;
if (rval)
{
/* Out of memory or empty file. */
- /* Note that empty file is not an error we propogate up */
+ /* Note that empty file is not an error we propagate up */
free(cur_line);
return ((rval == JB_ERR_FILE) ? JB_ERR_OK : rval);
}
do
{
prev_line = cur_line;
- cur_line = prev_line->next = zalloc(sizeof(struct file_line));
- if (cur_line == NULL)
- {
- /* Out of memory */
- edit_free_file_lines(first_line);
- return JB_ERR_MEMORY;
- }
+ cur_line = prev_line->next = zalloc_or_die(sizeof(struct file_line));
cur_line->type = FILE_LINE_UNPROCESSED;
* 1 : csp = Current client state (buffers, headers, etc...)
* 2 : parameters = map of cgi parameters.
* 3 : require_version = true to check "ver" parameter.
- * 4 : suffix = File extension, e.g. ".action".
- * 5 : pfile = Destination for the file. Will be set
+ * 4 : pfile = Destination for the file. Will be set
* to NULL on error.
*
* CGI Parameters :
- * filename : The name of the file to read, without the
- * path or ".action" extension.
+ * f : The action file identifier.
* ver : (Only if require_version is nonzero)
* Timestamp of the actions file. If wrong, this
* function fails with JB_ERR_MODIFIED.
jb_err edit_read_file(struct client_state *csp,
const struct map *parameters,
int require_version,
- const char *suffix,
struct editable_file **pfile)
{
struct file_line * lines;
FILE * fp;
jb_err err;
- char * filename;
- const char * identifier;
+ const char *filename = NULL;
struct editable_file * file;
unsigned version = 0;
struct stat statbuf[1];
char version_buf[22];
int newline = NEWLINE_UNKNOWN;
+ unsigned i;
assert(csp);
assert(parameters);
*pfile = NULL;
- err = get_file_name_param(csp, parameters, "f", suffix,
- &filename, &identifier);
- if (err)
+ err = get_number_param(csp, parameters, "f", &i);
+ if ((JB_ERR_OK == err) && (i < MAX_AF_FILES) && (NULL != csp->config->actions_file[i]))
{
- return err;
+ filename = csp->config->actions_file[i];
+ }
+ else if (JB_ERR_CGI_PARAMS == err)
+ {
+ /*
+ * Probably an old-school URL like
+ * http://config.privoxy.org/edit-actions-list?f=default
+ */
+ get_file_name_param(csp, parameters, "f", &filename);
}
- if (stat(filename, statbuf) < 0)
+ if (NULL == filename || stat(filename, statbuf) < 0)
{
/* Error, probably file not found. */
- free(filename);
return JB_ERR_FILE;
}
version = (unsigned) statbuf->st_mtime;
err = get_number_param(csp, parameters, "v", &specified_version);
if (err)
{
- free(filename);
return err;
}
}
}
- if (NULL == (fp = fopen(filename,"rt")))
+ if (NULL == (fp = fopen(filename,"rb")))
{
- free(filename);
return JB_ERR_FILE;
}
if (err)
{
- free(filename);
return err;
}
- file = (struct editable_file *) zalloc(sizeof(*file));
- if (err)
- {
- free(filename);
- edit_free_file_lines(lines);
- return err;
- }
+ file = zalloc_or_die(sizeof(*file));
file->lines = lines;
file->newline = newline;
file->filename = filename;
file->version = version;
- file->identifier = url_encode(identifier);
-
- if (file->identifier == NULL)
- {
- edit_free_file(file);
- return JB_ERR_MEMORY;
- }
+ file->identifier = i;
/* Correct file->version_str */
freez(file->version_str);
- snprintf(version_buf, 22, "%u", file->version);
- version_buf[21] = '\0';
- file->version_str = strdup(version_buf);
- if (version_buf == NULL)
- {
- edit_free_file(file);
- return JB_ERR_MEMORY;
- }
+ snprintf(version_buf, sizeof(version_buf), "%u", file->version);
+ version_buf[sizeof(version_buf)-1] = '\0';
+ file->version_str = strdup_or_die(version_buf);
*pfile = file;
return JB_ERR_OK;
* to NULL on error.
*
* CGI Parameters :
- * filename : The name of the actions file to read, without the
- * path or ".action" extension.
+ * f : The actions file identifier.
* ver : (Only if require_version is nonzero)
* Timestamp of the actions file. If wrong, this
* function fails with JB_ERR_MODIFIED.
{
jb_err err;
struct editable_file *file;
+ static int acceptable_failures = ACCEPTABLE_TIMESTAMP_MISMATCHES - 1;
assert(csp);
assert(parameters);
*pfile = NULL;
- err = edit_read_file(csp, parameters, require_version, ".action", &file);
+ err = edit_read_file(csp, parameters, require_version, &file);
if (err)
{
/* Try to handle if possible */
}
else if (err == JB_ERR_MODIFIED)
{
+ assert(require_version);
err = cgi_error_modified(csp, rsp, lookup(parameters, "f"));
+ log_error(LOG_LEVEL_ERROR,
+ "Blocking CGI edit request due to modification time mismatch.");
+ if (acceptable_failures > 0)
+ {
+ log_error(LOG_LEVEL_INFO,
+ "The CGI editor will be turned off after another %d mismatche(s).",
+ acceptable_failures);
+ acceptable_failures--;
+ }
+ else
+ {
+ log_error(LOG_LEVEL_INFO,
+ "Timestamp mismatch limit reached, turning CGI editor off. "
+ "Reload the configuration file to re-enable it.");
+ csp->config->feature_flags &= ~RUNTIME_FEATURE_CGI_EDIT_ACTIONS;
+ }
}
if (err == JB_ERR_OK)
{
* Function : get_file_name_param
*
* Description : Get the name of the file to edit from the parameters
- * passed to a CGI function. This function handles
- * security checks such as blocking urls containing
- * "/" or ".", prepending the config file directory,
- * and adding the specified suffix.
- *
- * (This is an essential security check, otherwise
- * users may be able to pass "../../../etc/passwd"
- * and overwrite the password file [linux], "prn:"
- * and print random data [Windows], etc...)
- *
- * This function only allows filenames contining the
- * characters '-', '_', 'A'-'Z', 'a'-'z', and '0'-'9'.
- * That's probably too restrictive but at least it's
- * secure.
+ * passed to a CGI function using the old syntax.
+ * This function handles security checks and only
+ * accepts files that Privoxy already knows.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : parameters = map of cgi parameters
- * 3 : param_name = The name of the parameter to read
- * 4 : suffix = File extension, e.g. ".actions"
- * 5 : pfilename = destination for full filename. Caller
- * free()s. Set to NULL on error.
- * 6 : pparam = destination for partial filename,
- * suitable for use in another URL. Allocated as part
- * of the map "parameters", so don't free it.
- * Set to NULL if not specified.
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : parameters = map of cgi parameters
+ * 3 : param_name = The name of the parameter to read
+ * 4 : pfilename = pointer to the filename in
+ * csp->config->actions_file[] if found. Set to NULL on error.
*
* Returns : JB_ERR_OK on success
* JB_ERR_MEMORY on out-of-memory
static jb_err get_file_name_param(struct client_state *csp,
const struct map *parameters,
const char *param_name,
- const char *suffix,
- char **pfilename,
- const char **pparam)
+ const char **pfilename)
{
const char *param;
+ const char suffix[] = ".action";
const char *s;
char *name;
char *fullpath;
char ch;
- int len;
+ size_t len;
+ size_t name_size;
+ int i;
assert(csp);
assert(parameters);
- assert(suffix);
assert(pfilename);
- assert(pparam);
*pfilename = NULL;
- *pparam = NULL;
param = lookup(parameters, param_name);
if (!*param)
return JB_ERR_CGI_PARAMS;
}
- *pparam = param;
-
len = strlen(param);
if (len >= FILENAME_MAX)
{
return JB_ERR_CGI_PARAMS;
}
- /* Check every character to see if it's legal */
+ /*
+ * Check every character to see if it's legal.
+ * Totally unnecessary but we do it anyway.
+ */
s = param;
while ((ch = *s++) != '\0')
{
&& ((ch < 'a') || (ch > 'z'))
&& ((ch < '0') || (ch > '9'))
&& (ch != '-')
- && (ch != '_') )
+ && (ch != '_'))
{
/* Probable hack attempt. */
return JB_ERR_CGI_PARAMS;
}
/* Append extension */
- name = malloc(len + strlen(suffix) + 1);
- if (name == NULL)
- {
- return JB_ERR_MEMORY;
- }
- strcpy(name, param);
- strcpy(name + len, suffix);
+ name_size = len + strlen(suffix) + 1;
+ name = malloc_or_die(name_size);
+ strlcpy(name, param, name_size);
+ strlcat(name, suffix, name_size);
/* Prepend path */
fullpath = make_path(csp->config->confdir, name);
free(name);
+
if (fullpath == NULL)
{
return JB_ERR_MEMORY;
}
- /* Success */
- *pfilename = fullpath;
-
- 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.
- *
- *********************************************************************/
-static 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 = -1;
-
- 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')
+ /* Check if the file is known */
+ for (i = 0; i < MAX_AF_FILES; i++)
{
- if ((ch < '0') || (ch > '9'))
+ if (NULL != csp->config->actions_file[i] &&
+ !strcmp(fullpath, csp->config->actions_file[i]))
{
- return JB_ERR_CGI_PARAMS;
- }
+ /* Success */
+ *pfilename = csp->config->actions_file[i];
+ freez(fullpath);
- 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;
+ return JB_ERR_OK;
}
-
- value = value * 10 + ch;
}
+ freez(fullpath);
- /* Success */
- *pvalue = value;
-
- return JB_ERR_OK;
+ return JB_ERR_CGI_PARAMS;
}
* spaces and validates it.
*
* 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. Will be malloc()'d.
+ * 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. Will be malloc()'d.
* Set to NULL on error.
*
* Returns : JB_ERR_OK on success
const char *orig_param;
char *param;
char *s;
- struct url_spec compiled[1];
+ struct pattern_spec compiled[1];
jb_err err;
assert(csp);
free(param);
return JB_ERR_MEMORY;
}
- err = create_url_spec(compiled, s);
+ err = create_pattern_spec(compiled, s);
free(s);
if (err)
{
free(param);
return (err == JB_ERR_MEMORY) ? JB_ERR_MEMORY : JB_ERR_CGI_PARAMS;
}
- free_url_spec(compiled);
+ free_pattern_spec(compiled);
if (param[strlen(param) - 1] == '\\')
{
free(param);
return JB_ERR_MEMORY;
}
- err = create_url_spec(compiled, s);
+ err = create_pattern_spec(compiled, s);
free(s);
if (err)
{
free(param);
return (err == JB_ERR_MEMORY) ? JB_ERR_MEMORY : JB_ERR_CGI_PARAMS;
}
- free_url_spec(compiled);
+ free_pattern_spec(compiled);
}
*pvalue = param;
* Where 'sel' is 'a', 'b', or 'c'.
*
* Parameters :
- * 1 : exports = Exports map to modify.
- * 2 : optionname = name for map
- * 3 : values = null-terminated list of values;
- * 4 : value = Selected value.
+ * 1 : exports = Exports map to modify.
+ * 2 : optionname = name for map
+ * 3 : values = null-terminated list of values;
+ * 4 : value = Selected value.
*
* CGI Parameters : None
*
static jb_err map_radio(struct map * exports,
const char * optionname,
const char * values,
- char value)
+ int value)
{
- int len;
char * buf;
char * p;
char c;
+ const size_t len = strlen(optionname);
+ const size_t buf_size = len + 3;
assert(exports);
assert(optionname);
assert(values);
- len = strlen(optionname);
- buf = malloc(len + 3);
- if (buf == NULL)
- {
- return JB_ERR_MEMORY;
- }
+ buf = malloc_or_die(buf_size);
+
+ strlcpy(buf, optionname, buf_size);
- strcpy(buf, optionname);
+ /* XXX: this looks ... interesting */
p = buf + len;
*p++ = '-';
p[1] = '\0';
*p = c;
if (map(exports, buf, 1, "", 1))
{
- free(buf);
return JB_ERR_MEMORY;
}
}
}
- *p = value;
- if (map(exports, buf, 0, "checked", 1))
- {
- free(buf);
- return JB_ERR_MEMORY;
- }
-
- return JB_ERR_OK;
+ *p = (char)value;
+ return map(exports, buf, 0, "checked", 1);
}
* outside the CGI editor.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : filename = The file that was modified.
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : filename = The file that was modified.
*
* CGI Parameters : none
*
* be parsed by the CGI editor.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : file = The file that was modified.
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : file = The file that was modified.
*
* CGI Parameters : none
*
return JB_ERR_MEMORY;
}
- err = map(exports, "f", 1, file->identifier, 1);
+ err = map(exports, "f", 1, stringify(file->identifier), 0);
if (!err) err = map(exports, "parse-error", 1, html_encode(file->parse_error_text), 0);
cur_line = file->parse_error;
* opened by the CGI editor.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : filename = The file that was modified.
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : filename = The file that was modified.
*
* CGI Parameters : none
*
/*********************************************************************
*
- * Function : cgi_error_bad_param
+ * Function : cgi_error_file_read_only
*
- * Description : CGI function that is called if the parameters
- * (query string) for a CGI were wrong.
+ * Description : CGI function that is called when a file cannot be
+ * opened for writing by the CGI editor.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : filename = The file that we can't write to
*
* CGI Parameters : none
*
* JB_ERR_MEMORY on out-of-memory error.
*
*********************************************************************/
-jb_err cgi_error_disabled(struct client_state *csp,
- struct http_response *rsp)
+jb_err cgi_error_file_read_only(struct client_state *csp,
+ struct http_response *rsp,
+ const char *filename)
{
struct map *exports;
+ jb_err err;
assert(csp);
assert(rsp);
+ assert(filename);
if (NULL == (exports = default_exports(csp, NULL)))
{
return JB_ERR_MEMORY;
}
- return template_fill_for_cgi(csp, "cgi-error-disabled", exports, rsp);
+ err = map(exports, "f", 1, html_encode(filename), 0);
+ if (err)
+ {
+ free_map(exports);
+ return err;
+ }
+
+ return template_fill_for_cgi(csp, "cgi-error-file-read-only", exports, rsp);
}
* actions file to edit.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
struct http_response *rsp,
const struct map *parameters)
{
+ (void)parameters;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
}
/* FIXME: Incomplete */
- rsp->status = strdup("302 Local Redirect from Junkbuster");
- if (rsp->status == NULL)
- {
- return JB_ERR_MEMORY;
- }
- if (enlist_unique_header(rsp->headers, "Location",
- CGI_PREFIX "edit-actions-list?f=ijb"))
- {
- free(rsp->status);
- rsp->status = NULL;
- return JB_ERR_MEMORY;
- }
- return JB_ERR_OK;
+ return cgi_redirect(rsp, CGI_PREFIX "edit-actions-list?f=default");
+
}
* FIXME: This function shouldn't FATAL ever.
* FIXME: This function doesn't check the retval of map()
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters : filename
*
char * url_template;
char * sections;
char * urls;
- char buf[50];
+ char buf[150];
char * s;
struct map * exports;
struct map * section_exports;
struct file_line * cur_line;
unsigned line_number = 0;
unsigned prev_section_line_number = ((unsigned) (-1));
- int url_1_2;
+ int i, url_1_2;
+ struct file_list * fl;
+ struct url_actions * b;
+ char * buttons = NULL;
jb_err err;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
return cgi_error_disabled(csp, rsp);
}
+ if (NULL == (exports = default_exports(csp, NULL)))
+ {
+ return JB_ERR_MEMORY;
+ }
+
+ /* Load actions file */
err = edit_read_actions_file(csp, rsp, parameters, 0, &file);
if (err)
{
/* No filename specified, can't read file, or out of memory. */
+ free_map(exports);
return (err == JB_ERR_FILE ? JB_ERR_OK : err);
}
- if (NULL == (exports = default_exports(csp, NULL)))
+ /* Find start of actions in file */
+ cur_line = file->lines;
+ line_number = 1;
+ while ((cur_line != NULL) && (cur_line->type != FILE_LINE_ACTION))
{
- edit_free_file(file);
- return JB_ERR_MEMORY;
+ cur_line = cur_line->next;
+ line_number++;
}
- err = map(exports, "f", 1, file->identifier, 1);
+ /*
+ * Conventional actions files should have a match all block
+ * at the start:
+ * cur_line = {...global actions...}
+ * cur_line->next = /
+ * cur_line->next->next = {...actions...} or EOF
+ */
+ if ( (cur_line != NULL)
+ && (cur_line->type == FILE_LINE_ACTION)
+ && (cur_line->next != NULL)
+ && (cur_line->next->type == FILE_LINE_URL)
+ && (0 == strcmp(cur_line->next->unprocessed, "/"))
+ && ( (cur_line->next->next == NULL)
+ || (cur_line->next->next->type != FILE_LINE_URL)
+ ) )
+ {
+ /*
+ * Generate string with buttons to set actions for "/" to
+ * any predefined set of actions (named standard.*, probably
+ * residing in standard.action).
+ */
+
+ err = template_load(csp, §ion_template, "edit-actions-list-button", 0);
+ if (err)
+ {
+ edit_free_file(file);
+ free_map(exports);
+ if (err == JB_ERR_FILE)
+ {
+ return cgi_error_no_template(csp, rsp, "edit-actions-list-button");
+ }
+ return err;
+ }
+
+ err = template_fill(§ion_template, exports);
+ if (err)
+ {
+ edit_free_file(file);
+ free_map(exports);
+ return err;
+ }
+
+ buttons = strdup("");
+ for (i = 0; i < MAX_AF_FILES; i++)
+ {
+ if (((fl = csp->actions_list[i]) != NULL) && ((b = fl->f) != NULL))
+ {
+ for (b = b->next; NULL != b; b = b->next)
+ {
+ if (!strncmp(b->url->spec, "standard.", 9) && *(b->url->spec + 9) != '\0')
+ {
+ if (err)
+ {
+ freez(buttons);
+ free(section_template);
+ edit_free_file(file);
+ free_map(exports);
+ return JB_ERR_MEMORY;
+ }
+
+ section_exports = new_map();
+ err = map(section_exports, "button-name", 1, b->url->spec + 9, 1);
+
+ if (err || (NULL == (s = strdup(section_template))))
+ {
+ free_map(section_exports);
+ freez(buttons);
+ free(section_template);
+ edit_free_file(file);
+ free_map(exports);
+ return JB_ERR_MEMORY;
+ }
+
+ if (!err) err = template_fill(&s, section_exports);
+ free_map(section_exports);
+ if (!err) err = string_join(&buttons, s);
+ }
+ }
+ }
+ }
+ freez(section_template);
+ if (!err) err = map(exports, "all-urls-buttons", 1, buttons, 0);
+
+ /*
+ * Conventional actions file, supply extra editing help.
+ * (e.g. don't allow them to make it an unconventional one).
+ */
+ if (!err) err = map_conditional(exports, "all-urls-present", 1);
+
+ snprintf(buf, sizeof(buf), "%u", line_number);
+ if (!err) err = map(exports, "all-urls-s", 1, buf, 1);
+ snprintf(buf, sizeof(buf), "%u", line_number + 2);
+ if (!err) err = map(exports, "all-urls-s-next", 1, buf, 1);
+ if (!err) err = map(exports, "all-urls-actions", 1,
+ actions_to_html(csp, cur_line->data.action), 0);
+
+ /* Skip the 2 lines */
+ cur_line = cur_line->next->next;
+ line_number += 2;
+
+ /*
+ * Note that prev_section_line_number is NOT set here.
+ * This is deliberate and not a bug. It stops a "Move up"
+ * option appearing on the next section. Clicking "Move
+ * up" would make the actions file unconventional, which
+ * we don't want, so we hide this option.
+ */
+ }
+ else
+ {
+ /*
+ * Non-standard actions file - does not begin with
+ * the "All URLs" section.
+ */
+ if (!err) err = map_conditional(exports, "all-urls-present", 0);
+ }
+
+ /* Set up global exports */
+
+ if (!err) err = map(exports, "actions-file", 1, html_encode(file->filename), 0);
+ if (!err) err = map(exports, "f", 1, stringify(file->identifier), 0);
if (!err) err = map(exports, "v", 1, file->version_str, 1);
+ /* Discourage private additions to default.action */
+
+ if (!err) err = map_conditional(exports, "default-action",
+ (strstr("default.action", file->filename) != NULL));
if (err)
{
edit_free_file(file);
/* Should do all global exports above this point */
- err = template_load(csp, §ion_template, "edit-actions-list-section");
+ /* Load templates */
+
+ err = template_load(csp, §ion_template, "edit-actions-list-section", 0);
if (err)
{
edit_free_file(file);
return err;
}
- err = template_load(csp, &url_template, "edit-actions-list-url");
+ err = template_load(csp, &url_template, "edit-actions-list-url", 0);
if (err)
{
free(section_template);
free(url_template);
edit_free_file(file);
free_map(exports);
- free(url_template);
return err;
}
return err;
}
- /* Find start of actions in file */
- cur_line = file->lines;
- line_number = 1;
- while ((cur_line != NULL) && (cur_line->type != FILE_LINE_ACTION))
- {
- cur_line = cur_line->next;
- line_number++;
- }
-
if (NULL == (sections = strdup("")))
{
free(section_template);
while ((cur_line != NULL) && (cur_line->type == FILE_LINE_ACTION))
{
- if (NULL == (section_exports = new_map()))
- {
- free(sections);
- free(section_template);
- free(url_template);
- edit_free_file(file);
- free_map(exports);
- return JB_ERR_MEMORY;
- }
+ section_exports = new_map();
- snprintf(buf, 50, "%d", line_number);
+ snprintf(buf, sizeof(buf), "%u", line_number);
err = map(section_exports, "s", 1, buf, 1);
if (!err) err = map(section_exports, "actions", 1,
- actions_to_html(cur_line->data.action), 0);
+ actions_to_html(csp, cur_line->data.action), 0);
- if ( (!err)
+ if ((!err)
&& (cur_line->next != NULL)
&& (cur_line->next->type == FILE_LINE_URL))
{
if (prev_section_line_number != ((unsigned)(-1)))
{
/* Not last section */
- snprintf(buf, 50, "%d", prev_section_line_number);
+ snprintf(buf, sizeof(buf), "%u", prev_section_line_number);
if (!err) err = map(section_exports, "s-prev", 1, buf, 1);
if (!err) err = map_block_keep(section_exports, "s-prev-exists");
}
while ((cur_line != NULL) && (cur_line->type == FILE_LINE_URL))
{
- if (NULL == (url_exports = new_map()))
- {
- free(urls);
- free(sections);
- free(section_template);
- free(url_template);
- edit_free_file(file);
- free_map(exports);
- free_map(section_exports);
- return JB_ERR_MEMORY;
- }
+ url_exports = new_map();
- snprintf(buf, 50, "%d", line_number);
+ snprintf(buf, sizeof(buf), "%u", line_number);
err = map(url_exports, "p", 1, buf, 1);
- snprintf(buf, 50, "%d", url_1_2);
+ snprintf(buf, sizeof(buf), "%d", url_1_2);
if (!err) err = map(url_exports, "url-1-2", 1, buf, 1);
if (!err) err = map(url_exports, "url-html", 1,
/* Could also do section-specific exports here, but it wouldn't be as fast */
- if ( (cur_line != NULL)
- && (cur_line->type == FILE_LINE_ACTION))
+ snprintf(buf, sizeof(buf), "%u", line_number);
+ if (!err) err = map(section_exports, "s-next", 1, buf, 1);
+
+ if ((cur_line != NULL)
+ && (cur_line->type == FILE_LINE_ACTION))
{
/* Not last section */
- snprintf(buf, 50, "%d", line_number);
- if (!err) err = map(section_exports, "s-next", 1, buf, 1);
if (!err) err = map_block_keep(section_exports, "s-next-exists");
}
else
/*********************************************************************
*
- * Function : cgi_edit_actions
+ * Function : cgi_edit_actions_for_url
*
* Description : CGI function that edits the Actions list.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
struct file_line * cur_line;
unsigned line_number;
jb_err err;
+ struct re_filterfile_spec *filter_group;
+ int i, have_filters = 0;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
return JB_ERR_MEMORY;
}
- err = map(exports, "f", 1, file->identifier, 1);
+ err = map(exports, "f", 1, stringify(file->identifier), 0);
if (!err) err = map(exports, "v", 1, file->version_str, 1);
if (!err) err = map(exports, "s", 1, url_encode(lookup(parameters, "s")), 0);
if (!err) err = actions_to_radio(exports, cur_line->data.action);
+ /*
+ * XXX: Some browsers (at least IE6 and IE7) have an artificial URL
+ * length limitation and ignore clicks on the Submit buttons if
+ * the resulting GET URL would be longer than their limit.
+ *
+ * In Privoxy 3.0.5 beta the standard edit-actions-for-url template
+ * reached this limit and action editing stopped working in these
+ * browsers (BR #1570678).
+ *
+ * The config option split-large-forms works around this browser
+ * bug (HTTP has no URL length limitation) by deviding the action
+ * list form into multiple smaller ones. It means the URLs are shorter
+ * and work in broken browsers as well, but the user can no longer change
+ * all actions with one submit.
+ *
+ * A better solution would be to switch to POST requests,
+ * but this will do for now.
+ */
+ if (!err && (csp->config->feature_flags & RUNTIME_FEATURE_SPLIT_LARGE_FORMS))
+ {
+ /* Generate multiple smaller form by killing the big one. */
+ err = map_block_killer(exports, "one-form-only");
+ }
+ else
+ {
+ /* Default: Generate one large form by killing the smaller ones. */
+ err = map_block_killer(exports, "multiple-forms");
+ }
+
+ for (i = 0; i < MAX_AF_FILES; i++)
+ {
+ if ((csp->rlist[i] != NULL) && (csp->rlist[i]->f != NULL))
+ {
+ if (!err) err = map_conditional(exports, "any-filters-defined", 1);
+ have_filters = 1;
+ break;
+ }
+ }
+
+#ifndef FEATURE_EXTERNAL_FILTERS
+ if (!err) err = map_block_killer(exports, "external-content-filters");
+#endif
+
+ if (err)
+ {
+ edit_free_file(file);
+ free_map(exports);
+ return err;
+ }
+
+ if (0 == have_filters)
+ {
+ err = map(exports, "filter-params", 1, "", 1);
+ }
+ else
+ {
+ /*
+ * List available filters and their settings.
+ */
+ char *filter_template;
+ int filter_identifier = 0;
+ char *prepared_templates[MAX_FILTER_TYPES];
+
+ for (i = 0; i < MAX_FILTER_TYPES; i++)
+ {
+ prepared_templates[i] = strdup("");
+ }
+
+ err = template_load(csp, &filter_template, "edit-actions-for-url-filter", 0);
+ if (err)
+ {
+ edit_free_file(file);
+ free_map(exports);
+ if (err == JB_ERR_FILE)
+ {
+ return cgi_error_no_template(csp, rsp, "edit-actions-for-url-filter");
+ }
+ return err;
+ }
+
+ err = template_fill(&filter_template, exports);
+
+ for (i = 0; i < MAX_AF_FILES; i++)
+ {
+ if ((csp->rlist[i] != NULL) && (csp->rlist[i]->f != NULL))
+ {
+ filter_group = csp->rlist[i]->f;
+ for (;(!err) && (filter_group != NULL); filter_group = filter_group->next)
+ {
+ char current_mode = 'x';
+ char number[20];
+ struct list_entry *filter_name;
+ struct map *line_exports;
+ const int type = filter_group->type;
+ const int multi_action_index = filter_type_info[type].multi_action_index;
+
+ assert(type < MAX_FILTER_TYPES);
+
+ filter_name = cur_line->data.action->multi_add[multi_action_index]->first;
+ while ((filter_name != NULL)
+ && (0 != strcmp(filter_group->name, filter_name->str)))
+ {
+ filter_name = filter_name->next;
+ }
+
+ if (filter_name != NULL)
+ {
+ current_mode = 'y';
+ }
+ else
+ {
+ filter_name = cur_line->data.action->multi_remove[multi_action_index]->first;
+ while ((filter_name != NULL)
+ && (0 != strcmp(filter_group->name, filter_name->str)))
+ {
+ filter_name = filter_name->next;
+ }
+ if (filter_name != NULL)
+ {
+ current_mode = 'n';
+ }
+ }
+
+ /* Generate a unique serial number */
+ snprintf(number, sizeof(number), "%x", filter_identifier++);
+ number[sizeof(number) - 1] = '\0';
+
+ line_exports = new_map();
+ if (line_exports == NULL)
+ {
+ err = JB_ERR_MEMORY;
+ }
+ else
+ {
+ char *filter_line;
+
+ if (!err) err = map(line_exports, "index", 1, number, 1);
+ if (!err) err = map(line_exports, "name", 1, filter_group->name, 1);
+ if (!err) err = map(line_exports, "description", 1, filter_group->description, 1);
+ if (!err) err = map_radio(line_exports, "this-filter", "ynx", current_mode);
+ if (!err) err = map(line_exports, "filter-type", 1, filter_type_info[type].type, 1);
+ if (!err) err = map(line_exports, "abbr-filter-type", 1, filter_type_info[type].abbr_type, 1);
+ if (!err) err = map(line_exports, "anchor", 1, filter_type_info[type].anchor, 1);
+
+ if (!err)
+ {
+ filter_line = strdup(filter_template);
+ if (filter_line == NULL) err = JB_ERR_MEMORY;
+ }
+ if (!err) err = template_fill(&filter_line, line_exports);
+ string_join(&prepared_templates[type], filter_line);
+
+ free_map(line_exports);
+ }
+ }
+ }
+ }
+ freez(filter_template);
+
+ /* Replace all filter macros with the aggregated templates */
+ for (i = 0; i < MAX_FILTER_TYPES; i++)
+ {
+ if (err) break;
+ err = map(exports, filter_type_info[i].macro_name, 1, prepared_templates[i], 0);
+ }
+
+ if (err)
+ {
+ /* Free aggregated templates */
+ for (i = 0; i < MAX_FILTER_TYPES; i++)
+ {
+ freez(prepared_templates[i]);
+ }
+ }
+ }
+
+ /* Check or uncheck the "disable all of this type" radio buttons. */
+ for (i = 0; i < MAX_FILTER_TYPES; i++)
+ {
+ const int a = filter_type_info[i].multi_action_index;
+ const int disable_all = cur_line->data.action->multi_remove_all[a];
+ if (err) break;
+ err = map_radio(exports, filter_type_info[i].disable_all_option, "nx", (disable_all ? 'n' : 'x'));
+ }
+
edit_free_file(file);
if (err)
* Description : CGI function that actually edits the Actions list.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters : None
*
unsigned sectionid;
char * actiontext;
char * newtext;
- int len;
+ size_t newtext_size;
+ size_t len;
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
- char * target;
+ char target[1024];
jb_err err;
+ int filter_identifier;
+ int i;
+ const char * action_set_name;
+ struct file_list * fl;
+ struct url_actions * b;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
return JB_ERR_CGI_PARAMS;
}
- err = actions_from_radio(parameters, cur_line->data.action);
- if(err)
+ get_string_param(parameters, "p", &action_set_name);
+ if (action_set_name != NULL)
+ {
+ for (filter_identifier = 0; filter_identifier < MAX_AF_FILES; filter_identifier++)
+ {
+ if (((fl = csp->actions_list[filter_identifier]) != NULL) && ((b = fl->f) != NULL))
+ {
+ for (b = b->next; NULL != b; b = b->next)
+ {
+ if (!strncmp(b->url->spec, "standard.", 9) && !strcmp(b->url->spec + 9, action_set_name))
+ {
+ copy_action(cur_line->data.action, b->action);
+ goto found;
+ }
+ }
+ }
+ }
+ edit_free_file(file);
+ return JB_ERR_CGI_PARAMS;
+
+ found: ;
+ }
+ else
+ {
+ err = actions_from_radio(parameters, cur_line->data.action);
+ }
+
+ if (err)
+ {
+ /* Out of memory */
+ edit_free_file(file);
+ return err;
+ }
+
+ /* Check the "disable all of this type" parameters. */
+ for (i = 0; i < MAX_FILTER_TYPES; i++)
+ {
+ const int multi_action_index = filter_type_info[i].multi_action_index;
+ const char ch = get_char_param(parameters, filter_type_info[i].disable_all_param);
+
+ if (ch == 'N')
+ {
+ list_remove_all(cur_line->data.action->multi_add[multi_action_index]);
+ list_remove_all(cur_line->data.action->multi_remove[multi_action_index]);
+ cur_line->data.action->multi_remove_all[multi_action_index] = 1;
+ }
+ else if (ch == 'X')
+ {
+ cur_line->data.action->multi_remove_all[multi_action_index] = 0;
+ }
+ }
+
+ for (filter_identifier = 0; !err; filter_identifier++)
+ {
+ char key_value[30];
+ char key_name[30];
+ char key_type[30];
+ const char *name;
+ char value; /*
+ * Filter state. Valid states are: 'Y' (active),
+ * 'N' (inactive) and 'X' (no change).
+ * XXX: bad name.
+ */
+ char type; /*
+ * Abbreviated filter type. Valid types are: 'F' (content filter),
+ * 'S' (server-header filter) and 'C' (client-header filter).
+ */
+ int multi_action_index = 0;
+
+ /* Generate the keys */
+ snprintf(key_value, sizeof(key_value), "filter_r%x", filter_identifier);
+ key_value[sizeof(key_value) - 1] = '\0'; /* XXX: Why? */
+ snprintf(key_name, sizeof(key_name), "filter_n%x", filter_identifier);
+ key_name[sizeof(key_name) - 1] = '\0'; /* XXX: Why? */
+ snprintf(key_type, sizeof(key_type), "filter_t%x", filter_identifier);
+
+ err = get_string_param(parameters, key_name, &name);
+ if (err) break;
+
+ if (name == NULL)
+ {
+ /* End of list */
+ break;
+ }
+
+ type = get_char_param(parameters, key_type);
+ switch (type)
+ {
+ case 'F':
+ multi_action_index = ACTION_MULTI_FILTER;
+ break;
+ case 'S':
+ multi_action_index = ACTION_MULTI_SERVER_HEADER_FILTER;
+ break;
+ case 'C':
+ multi_action_index = ACTION_MULTI_CLIENT_HEADER_FILTER;
+ break;
+ case 'L':
+ multi_action_index = ACTION_MULTI_CLIENT_HEADER_TAGGER;
+ break;
+ case 'E':
+ multi_action_index = ACTION_MULTI_SERVER_HEADER_TAGGER;
+ break;
+ default:
+ log_error(LOG_LEVEL_ERROR,
+ "Unknown filter type: %c for filter %s. Filter ignored.", type, name);
+ continue;
+ }
+ assert(multi_action_index);
+
+ value = get_char_param(parameters, key_value);
+ if (value == 'Y')
+ {
+ list_remove_item(cur_line->data.action->multi_add[multi_action_index], name);
+ if (!err) err = enlist(cur_line->data.action->multi_add[multi_action_index], name);
+ list_remove_item(cur_line->data.action->multi_remove[multi_action_index], name);
+ }
+ else if (value == 'N')
+ {
+ list_remove_item(cur_line->data.action->multi_add[multi_action_index], name);
+ if (!cur_line->data.action->multi_remove_all[multi_action_index])
+ {
+ list_remove_item(cur_line->data.action->multi_remove[multi_action_index], name);
+ if (!err) err = enlist(cur_line->data.action->multi_remove[multi_action_index], name);
+ }
+ }
+ else if (value == 'X')
+ {
+ list_remove_item(cur_line->data.action->multi_add[multi_action_index], name);
+ list_remove_item(cur_line->data.action->multi_remove[multi_action_index], name);
+ }
+ }
+
+ if (err)
{
/* Out of memory */
edit_free_file(file);
len = 1;
}
- if (NULL == (newtext = malloc(len + 2)))
- {
- /* Out of memory */
- free(actiontext);
- edit_free_file(file);
- return JB_ERR_MEMORY;
- }
- strcpy(newtext, actiontext);
+ newtext_size = len + 2;
+ newtext = malloc_or_die(newtext_size);
+ strlcpy(newtext, actiontext, newtext_size);
free(actiontext);
newtext[0] = '{';
newtext[len] = '}';
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->filename);
+ }
edit_free_file(file);
return err;
}
- target = strdup(CGI_PREFIX "edit-actions-list?f=");
- string_append(&target, file->identifier);
+ snprintf(target, sizeof(target), CGI_PREFIX "edit-actions-list?foo=%lu&f=%i#l%u",
+ (long) time(NULL), file->identifier, sectionid);
edit_free_file(file);
- if (target == NULL)
- {
- /* Out of memory */
- return JB_ERR_MEMORY;
- }
-
- rsp->status = strdup("302 Local Redirect from Junkbuster");
- if (rsp->status == NULL)
- {
- free(target);
- return JB_ERR_MEMORY;
- }
- err = enlist_unique_header(rsp->headers, "Location", target);
- free(target);
-
- return err;
+ return cgi_redirect(rsp, target);
}
* an actions file.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* filename : Identifies the file to edit
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
- char * target;
+ unsigned section_start_line_number = 0;
+ char target[1024];
jb_err err;
+ assert(csp);
+ assert(rsp);
+ assert(parameters);
+
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
{
return cgi_error_disabled(csp, rsp);
while ((cur_line != NULL) && (line_number < patternid))
{
+ if (cur_line->type == FILE_LINE_ACTION)
+ {
+ section_start_line_number = line_number;
+ }
cur_line = cur_line->next;
line_number++;
}
- if ( (cur_line == NULL)
- || (cur_line->type != FILE_LINE_URL))
+ if ((cur_line == NULL)
+ || (cur_line->type != FILE_LINE_URL))
{
/* Invalid "patternid" parameter */
free(new_pattern);
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->filename);
+ }
edit_free_file(file);
return err;
}
- target = strdup(CGI_PREFIX "edit-actions-list?f=");
- string_append(&target, file->identifier);
+ snprintf(target, sizeof(target), CGI_PREFIX "edit-actions-list?foo=%lu&f=%i#l%u",
+ (long) time(NULL), file->identifier, section_start_line_number);
edit_free_file(file);
- if (target == NULL)
- {
- /* Out of memory */
- return JB_ERR_MEMORY;
- }
-
- rsp->status = strdup("302 Local Redirect from Junkbuster");
- if (rsp->status == NULL)
- {
- free(target);
- return JB_ERR_MEMORY;
- }
- err = enlist_unique_header(rsp->headers, "Location", target);
- free(target);
-
- return err;
+ return cgi_redirect(rsp, target);
}
* an actions file.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* filename : Identifies the file to edit
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
- char * target;
+ char target[1024];
jb_err err;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
line_number++;
}
- if ( (cur_line == NULL)
- || (cur_line->type != FILE_LINE_ACTION))
+ if ((cur_line == NULL)
+ || (cur_line->type != FILE_LINE_ACTION))
{
/* Invalid "sectionid" parameter */
free(new_pattern);
/* At this point, the section header is in cur_line - add after this. */
/* Allocate the new line */
- new_line = (struct file_line *)zalloc(sizeof(*new_line));
- if (new_line == NULL)
- {
- free(new_pattern);
- edit_free_file(file);
- return JB_ERR_MEMORY;
- }
+ new_line = zalloc_or_die(sizeof(*new_line));
/* Fill in the data members of the new line */
new_line->raw = NULL;
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->filename);
+ }
edit_free_file(file);
return err;
}
- target = strdup(CGI_PREFIX "edit-actions-list?f=");
- string_append(&target, file->identifier);
+ snprintf(target, sizeof(target), CGI_PREFIX "edit-actions-list?foo=%lu&f=%i#l%u",
+ (long) time(NULL), file->identifier, sectionid);
edit_free_file(file);
- if (target == NULL)
- {
- /* Out of memory */
- return JB_ERR_MEMORY;
- }
-
- rsp->status = strdup("302 Local Redirect from Junkbuster");
- if (rsp->status == NULL)
- {
- free(target);
- return JB_ERR_MEMORY;
- }
- err = enlist_unique_header(rsp->headers, "Location", target);
- free(target);
-
- return err;
+ return cgi_redirect(rsp, target);
}
* the actions file.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* f : (filename) Identifies the file to edit
struct file_line * cur_line;
struct file_line * prev_line;
unsigned line_number;
- char * target;
+ unsigned section_start_line_number = 0;
+ char target[1024];
jb_err err;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
while ((cur_line != NULL) && (line_number < patternid))
{
+ if (cur_line->type == FILE_LINE_ACTION)
+ {
+ section_start_line_number = line_number;
+ }
prev_line = cur_line;
cur_line = cur_line->next;
line_number++;
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->filename);
+ }
edit_free_file(file);
return err;
}
- target = strdup(CGI_PREFIX "edit-actions-list?f=");
- string_append(&target, file->identifier);
+ snprintf(target, sizeof(target), CGI_PREFIX "edit-actions-list?foo=%lu&f=%u#l%u",
+ (long) time(NULL), file->identifier, section_start_line_number);
edit_free_file(file);
- if (target == NULL)
- {
- /* Out of memory */
- return JB_ERR_MEMORY;
- }
-
- rsp->status = strdup("302 Local Redirect from Junkbuster");
- if (rsp->status == NULL)
- {
- free(target);
- return JB_ERR_MEMORY;
- }
- err = enlist_unique_header(rsp->headers, "Location", target);
- free(target);
-
- return err;
+ return cgi_redirect(rsp, target);
}
* (else JB_ERR_CGI_PARAMS).
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* f : (filename) Identifies the file to edit
struct file_line * cur_line;
struct file_line * prev_line;
unsigned line_number;
- char * target;
+ char target[1024];
jb_err err;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
line_number++;
}
- if ( (cur_line == NULL)
- || (cur_line->type != FILE_LINE_ACTION) )
+ if ((cur_line == NULL)
+ || (cur_line->type != FILE_LINE_ACTION))
{
/* Invalid "sectionid" parameter */
edit_free_file(file);
return JB_ERR_CGI_PARAMS;
}
- if ( (cur_line->next != NULL)
- && (cur_line->next->type == FILE_LINE_URL) )
+ if ((cur_line->next != NULL)
+ && (cur_line->next->type == FILE_LINE_URL))
{
/* Section not empty. */
edit_free_file(file);
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->filename);
+ }
edit_free_file(file);
return err;
}
- target = strdup(CGI_PREFIX "edit-actions-list?f=");
- string_append(&target, file->identifier);
+ snprintf(target, sizeof(target), CGI_PREFIX "edit-actions-list?foo=%lu&f=%u",
+ (long) time(NULL), file->identifier);
edit_free_file(file);
- if (target == NULL)
- {
- /* Out of memory */
- return JB_ERR_MEMORY;
- }
-
- rsp->status = strdup("302 Local Redirect from Junkbuster");
- if (rsp->status == NULL)
- {
- free(target);
- return JB_ERR_MEMORY;
- }
- err = enlist_unique_header(rsp->headers, "Location", target);
- free(target);
-
- return err;
+ return cgi_redirect(rsp, target);
}
* an actions file.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* f : (filename) Identifies the file to edit
struct editable_file * file;
struct file_line * cur_line;
unsigned line_number;
- char * target;
+ char target[1024];
jb_err err;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
line_number = 1;
cur_line = file->lines;
- if (sectionid < 1U)
+ if (sectionid <= 1U)
{
/* Add to start of file */
- if (cur_line != NULL)
+ if (cur_line != NULL && cur_line->type != FILE_LINE_ACTION)
{
/* There's something in the file, find the line before the first
* action.
*/
- while ( (cur_line->next != NULL)
- && (cur_line->next->type != FILE_LINE_ACTION) )
+ while ((cur_line->next != NULL)
+ && (cur_line->next->type != FILE_LINE_ACTION))
{
cur_line = cur_line->next;
line_number++;
}
}
+ else
+ {
+ /* File starts with action line, so insert at top */
+ cur_line = NULL;
+ }
}
else
{
line_number++;
}
- if ( (cur_line == NULL)
- || (cur_line->type != FILE_LINE_ACTION))
+ if ((cur_line == NULL)
+ || (cur_line->type != FILE_LINE_ACTION))
{
/* Invalid "sectionid" parameter */
edit_free_file(file);
}
/* Skip through the section to find the last line in it. */
- while ( (cur_line->next != NULL)
- && (cur_line->next->type != FILE_LINE_ACTION) )
+ while ((cur_line->next != NULL)
+ && (cur_line->next->type != FILE_LINE_ACTION))
{
cur_line = cur_line->next;
line_number++;
}
/* Allocate the new line */
- new_line = (struct file_line *)zalloc(sizeof(*new_line));
- if (new_line == NULL)
- {
- free(new_text);
- edit_free_file(file);
- return JB_ERR_MEMORY;
- }
+ new_line = zalloc_or_die(sizeof(*new_line));
/* Fill in the data members of the new line */
new_line->raw = NULL;
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->filename);
+ }
edit_free_file(file);
return err;
}
- target = strdup(CGI_PREFIX "edit-actions-list?f=");
- string_append(&target, file->identifier);
+ snprintf(target, sizeof(target), CGI_PREFIX "edit-actions-list?foo=%lu&f=%u",
+ (long) time(NULL), file->identifier);
edit_free_file(file);
- if (target == NULL)
- {
- /* Out of memory */
- return JB_ERR_MEMORY;
- }
-
- rsp->status = strdup("302 Local Redirect from Junkbuster");
- if (rsp->status == NULL)
- {
- free(target);
- return JB_ERR_MEMORY;
- }
- err = enlist_unique_header(rsp->headers, "Location", target);
- free(target);
-
- return err;
+ return cgi_redirect(rsp, target);
}
* specified.
*
* Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
*
* CGI Parameters :
* f : (filename) Identifies the file to edit
struct file_line * line_end_section2;
struct file_line * line_after_section2;
unsigned line_number;
- char * target;
+ char target[1024];
jb_err err;
if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS))
line_number++;
}
- if ( (cur_line == NULL)
- || (cur_line->type != FILE_LINE_ACTION) )
+ if ((cur_line == NULL)
+ || (cur_line->type != FILE_LINE_ACTION))
{
/* Invalid "section1" parameter */
edit_free_file(file);
line_number++;
}
- if ( (cur_line == NULL)
- || (cur_line->type != FILE_LINE_ACTION) )
+ if ((cur_line == NULL)
+ || (cur_line->type != FILE_LINE_ACTION))
{
/* Invalid "section2" parameter */
edit_free_file(file);
if (err)
{
/* Error writing file */
+ if (err == JB_ERR_FILE)
+ {
+ /* Read-only file. */
+ err = cgi_error_file_read_only(csp, rsp, file->filename);
+ }
edit_free_file(file);
return err;
}
} /* END if (section1 != section2) */
- target = strdup(CGI_PREFIX "edit-actions-list?f=");
- string_append(&target, file->identifier);
+ snprintf(target, sizeof(target), CGI_PREFIX "edit-actions-list?foo=%lu&f=%u",
+ (long) time(NULL), file->identifier);
edit_free_file(file);
- if (target == NULL)
- {
- /* Out of memory */
- return JB_ERR_MEMORY;
- }
-
- rsp->status = strdup("302 Local Redirect from Junkbuster");
- if (rsp->status == NULL)
- {
- free(target);
- return JB_ERR_MEMORY;
- }
- err = enlist_unique_header(rsp->headers, "Location", target);
- free(target);
-
- return err;
+ return cgi_redirect(rsp, target);
}
/*********************************************************************
*
- * Function : cgi_toggle
+ * Function : javascriptify
*
- * Description : CGI function that adds a new empty section to
- * an actions file.
+ * Description : Converts a string into a form JavaScript will like.
*
- * Parameters :
- * 1 : csp = Current client state (buffers, headers, etc...)
- * 2 : rsp = http_response data structure for output
- * 3 : parameters = map of cgi parameters
+ * Netscape 4's JavaScript sucks - it doesn't use
+ * "id" parameters, so you have to set the "name"
+ * used to submit a form element to something JavaScript
+ * will like. (Or access the elements by index in an
+ * array. That array contains >60 elements and will
+ * be changed whenever we add a new action to the
+ * editor, so I'm NOT going to use indexes that have
+ * to be figured out by hand.)
*
- * CGI Parameters :
- * set : If present, how to change toggle setting:
- * "enable", "disable", "toggle", or none (default).
- * mini : If present, use mini reply template.
+ * Currently the only thing we have to worry about
+ * is "-" ==> "_" conversion.
*
- * Returns : JB_ERR_OK on success
- * JB_ERR_MEMORY on out-of-memory
+ * This is a length-preserving operation so it is
+ * carried out in-place, no memory is allocated
+ * or freed.
+ *
+ * Parameters :
+ * 1 : identifier = String to make JavaScript-friendly.
+ *
+ * Returns : N/A
*
*********************************************************************/
-jb_err cgi_toggle(struct client_state *csp,
- struct http_response *rsp,
- const struct map *parameters)
+static void javascriptify(char * identifier)
{
- struct map *exports;
- char mode;
- const char *template_name;
- jb_err err;
-
- assert(csp);
- assert(rsp);
- assert(parameters);
-
- if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_TOGGLE))
- {
- return cgi_error_disabled(csp, rsp);
- }
-
- if (NULL == (exports = default_exports(csp, "toggle")))
- {
- return JB_ERR_MEMORY;
- }
-
- mode = *(lookup(parameters, "set"));
-
- if (mode == 'e')
- {
- /* Enable */
- g_bToggleIJB = 1;
- }
- else if (mode == 'd')
- {
- /* Disable */
- g_bToggleIJB = 0;
- }
- else if (mode == 't')
- {
- /* Toggle */
- g_bToggleIJB = !g_bToggleIJB;
- }
-
- err = map_conditional(exports, "enabled", g_bToggleIJB);
- if (err)
+ char * p = identifier;
+ while (NULL != (p = strchr(p, '-')))
{
- free_map(exports);
- return err;
+ *p++ = '_';
}
-
- template_name = (*(lookup(parameters, "mini"))
- ? "toggle-mini"
- : "toggle");
-
- return template_fill_for_cgi(csp, template_name, exports, rsp);
}
static jb_err actions_to_radio(struct map * exports,
const struct action_spec *action)
{
- unsigned mask = action->mask;
- unsigned add = action->add;
+ unsigned long mask;
+ unsigned long add;
int mapped_param;
int checked;
char current_mode;
}
-/*********************************************************************
- *
- * Function : javascriptify
- *
- * Description : Converts a string into a form JavaScript will like.
- *
- * Netscape 4's JavaScript sucks - it doesn't use
- * "id" parameters, so you have to set the "name"
- * used to submit a form element to something JavaScript
- * will like. (Or access the elements by index in an
- * array. That array contains >60 elements and will
- * be changed whenever we add a new action to the
- * editor, so I'm NOT going to use indexes that have
- * to be figured out by hand.)
- *
- * Currently the only thing we have to worry about
- * is "-" ==> "_" conversion.
- *
- * This is a length-preserving operation so it is
- * carried out in-place, no memory is allocated
- * or freed.
- *
- * Parameters :
- * 1 : identifier = String to make JavaScript-friendly.
- *
- * Returns : N/A
- *
- *********************************************************************/
-static void javascriptify(char * identifier)
-{
- char * p = identifier;
- while (NULL != (p = strchr(p, '-')))
- {
- *p++ = '_';
- }
-}
-
-
/*********************************************************************
*
* Function : actions_from_radio
*
*********************************************************************/
static jb_err actions_from_radio(const struct map * parameters,
- struct action_spec *action)
+ struct action_spec *action)
{
- static int first_time = 1;
const char * param;
char * param_dup;
char ch;
const char * js_name;
+ jb_err err = JB_ERR_OK;
assert(parameters);
assert(action);
* but in this case we're safe and don't need semaphores.
* Be careful if you modify this function.
* - Jon
+ * The js_name_arr's are never free()d, but this is no
+ * problem, since they will only be created once and
+ * used by all threads thereafter. -oes
*/
#define JAVASCRIPTIFY(dest_var, string) \
{ \
- static char js_name_arr[] = string; \
+ static int first_time = 1; \
+ static char *js_name_arr; \
if (first_time) \
{ \
+ js_name_arr = strdup(string); \
javascriptify(js_name_arr); \
} \
dest_var = js_name_arr; \
+ first_time = 0; \
} \
#define DEFINE_ACTION_BOOL(name, bit) \
JAVASCRIPTIFY(js_name, name); \
- param = lookup(parameters, js_name); \
- ch = ijb_toupper(param[0]); \
+ ch = get_char_param(parameters, js_name); \
if (ch == 'Y') \
{ \
action->add |= bit; \
#define DEFINE_ACTION_STRING(name, bit, index) \
JAVASCRIPTIFY(js_name, name); \
- param = lookup(parameters, js_name); \
- ch = ijb_toupper(param[0]); \
+ ch = get_char_param(parameters, js_name); \
if (ch == 'Y') \
{ \
+ param = NULL; \
JAVASCRIPTIFY(js_name, name "-mode"); \
- param = lookup(parameters, js_name); \
- if ((*param == '\0') || (0 == strcmp(param, "CUSTOM"))) \
- { \
- JAVASCRIPTIFY(js_name, name "-param"); \
- param = lookup(parameters, js_name); \
+ if (!err) err = get_string_param(parameters, js_name, ¶m); \
+ if ((param == NULL) || (0 == strcmp(param, "CUSTOM"))) \
+ { \
+ JAVASCRIPTIFY(js_name, name "-param"); \
+ if (!err) err = get_string_param(parameters, js_name, ¶m); \
} \
- if (*param != '\0') \
+ if (param != NULL) \
{ \
if (NULL == (param_dup = strdup(param))) \
{ \
#define DEFINE_ACTION_MULTI(name, index) \
JAVASCRIPTIFY(js_name, name); \
- param = lookup(parameters, js_name); \
- ch = ijb_toupper((int)param[0]); \
+ ch = get_char_param(parameters, js_name); \
if (ch == 'Y') \
{ \
/* FIXME */ \
#undef DEFINE_ACTION_ALIAS
#undef JAVASCRIPTIFY
- first_time = 0;
-
- return JB_ERR_OK;
+ return err;
}
+#endif /* def FEATURE_CGI_EDIT_ACTIONS */
-#endif /* def FEATURE_CGI_EDIT_ACTIONS */
+#ifdef FEATURE_TOGGLE
+/*********************************************************************
+ *
+ * Function : cgi_toggle
+ *
+ * Description : CGI function that adds a new empty section to
+ * an actions file.
+ *
+ * Parameters :
+ * 1 : csp = Current client state (buffers, headers, etc...)
+ * 2 : rsp = http_response data structure for output
+ * 3 : parameters = map of cgi parameters
+ *
+ * CGI Parameters :
+ * set : If present, how to change toggle setting:
+ * "enable", "disable", "toggle", or none (default).
+ * mini : If present, use mini reply template.
+ *
+ * Returns : JB_ERR_OK on success
+ * JB_ERR_MEMORY on out-of-memory
+ *
+ *********************************************************************/
+jb_err cgi_toggle(struct client_state *csp,
+ struct http_response *rsp,
+ const struct map *parameters)
+{
+ struct map *exports;
+ char mode;
+ const char *template_name;
+
+ assert(csp);
+ assert(rsp);
+ assert(parameters);
+
+ if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_TOGGLE))
+ {
+ return cgi_error_disabled(csp, rsp);
+ }
+
+ mode = get_char_param(parameters, "set");
+
+ if (mode == 'E')
+ {
+ /* Enable */
+ global_toggle_state = 1;
+ }
+ else if (mode == 'D')
+ {
+ /* Disable */
+ global_toggle_state = 0;
+ }
+ else if (mode == 'T')
+ {
+ /* Toggle */
+ global_toggle_state = !global_toggle_state;
+ }
+
+ log_error(LOG_LEVEL_INFO, "Now toggled %s.", global_toggle_state ? "ON" : "OFF");
+
+ if (NULL == (exports = default_exports(csp, "toggle")))
+ {
+ return JB_ERR_MEMORY;
+ }
+
+ template_name = (get_char_param(parameters, "mini")
+ ? "toggle-mini"
+ : "toggle");
+
+ return template_fill_for_cgi(csp, template_name, exports, rsp);
+}
+#endif /* def FEATURE_TOGGLE */
/*
projects / privoxy.git / blobdiff