X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=cgiedit.c;h=190c1a1914c9b05466a69af89fb5592c023b802f;hp=1547518f1d0ff08d3f48bd9c8a0f904f6ce650b6;hb=afca4c2f31f5acfe16849d6515bc8f6cfc8497a6;hpb=3bab8c3b9323bf1d4cd9dbdac2b50636e99fd379 diff --git a/cgiedit.c b/cgiedit.c index 1547518f..190c1a19 100644 --- a/cgiedit.c +++ b/cgiedit.c @@ -1,4 +1,4 @@ -const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.36 2002/04/26 21:53:30 jongfoster Exp $"; +const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.57 2007/10/27 13:32:23 fabiankeil Exp $"; /********************************************************************* * * File : $Source: /cvsroot/ijbswa/current/cgiedit.c,v $ @@ -15,7 +15,7 @@ const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.36 2002/04/26 21:53:30 jongfoster * * Stick to the short names in this file for consistency. * - * Copyright : Written by and Copyright (C) 2001 the SourceForge + * Copyright : Written by and Copyright (C) 2001-2007 the SourceForge * Privoxy team. http://www.privoxy.org/ * * Based on the Internet Junkbuster originally written @@ -42,6 +42,140 @@ const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.36 2002/04/26 21:53:30 jongfoster * * Revisions : * $Log: cgiedit.c,v $ + * Revision 1.57 2007/10/27 13:32:23 fabiankeil + * Plug minor 5-year-old memory leak. Spotted by + * Valgrind and triggered by Privoxy-Regression-Test. + * + * Revision 1.56 2007/08/05 13:47:03 fabiankeil + * #1763173 from Stefan Huehner: s@const static@static const@. + * + * Revision 1.55 2007/05/31 11:50:20 fabiankeil + * Re-enable support for old-school URLs like + * http://config.privoxy.org/edit-actions-list?f=default + * in the action editor. + * + * They are no longer used by the CGI pages, but make it easier + * to reach the editor directly, without knowing the requested + * file's index in csp->config->actions_file[]. + * + * Revision 1.54 2007/05/14 10:33:51 fabiankeil + * - Use strlcpy() and strlcat() instead of strcpy() and strcat(). + * + * Revision 1.53 2007/04/15 16:39:20 fabiankeil + * Introduce tags as alternative way to specify which + * actions apply to a request. At the moment tags can be + * created based on client and server headers. + * + * Revision 1.52 2007/04/12 10:41:23 fabiankeil + * - Don't mistake VC++'s _snprintf() for a snprintf() replacement. + * - Move some cgi_edit_actions_for_url() variables into structs. + * - Remove bogus comment. + * + * Revision 1.51 2007/04/08 13:21:05 fabiankeil + * Reference action files in CGI URLs by id instead + * of using the first part of the file name. + * Fixes BR 1694250 and BR 1590556. + * + * Revision 1.50 2007/03/29 11:40:34 fabiankeil + * Divide @filter-params@ into @client-header-filter-params@ + * @content-filter-params@ and @server-header-filter-params@. + * + * Revision 1.49 2007/03/20 15:16:34 fabiankeil + * Use dedicated header filter actions instead of abusing "filter". + * Replace "filter-client-headers" and "filter-client-headers" + * with "server-header-filter" and "client-header-filter". + * + * Revision 1.48 2007/02/13 14:35:25 fabiankeil + * Replace hash escaping code to prevent + * crashes, memory and file corruption. + * + * Revision 1.47 2006/12/28 18:04:25 fabiankeil + * Fixed gcc43 conversion warnings. + * + * Revision 1.46 2006/12/27 18:44:52 fabiankeil + * Stop shadowing string.h's index(). + * + * Revision 1.45 2006/12/21 12:57:48 fabiankeil + * Add config option "split-large-forms" + * to work around the browser bug reported + * in BR #1570678. + * + * Revision 1.44 2006/12/09 13:49:16 fabiankeil + * Fix configure option --disable-toggle. + * Thanks to Peter Thoenen for reporting this. + * + * Revision 1.43 2006/07/18 14:48:45 david__schmidt + * Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch) + * with what was really the latest development (the v_3_0_branch branch) + * + * Revision 1.41.2.12 2006/01/30 15:16:25 david__schmidt + * Remove a little residual debugging info + * + * Revision 1.41.2.11 2006/01/29 23:10:56 david__schmidt + * Multiple filter file support + * + * Revision 1.41.2.10 2005/07/04 03:13:43 david__schmidt + * Undo some damaging memory leak patches + * + * Revision 1.41.2.9 2005/07/04 00:31:04 david__schmidt + * Removing a double free + * + * Revision 1.41.2.8 2005/05/07 21:50:54 david__schmidt + * A few memory leaks plugged (mostly on error paths) + * + * Revision 1.41.2.7 2004/02/17 13:30:23 oes + * Moved cgi_error_disabled() from cgiedit.c to + * cgi.c to re-enable build with --disable-editor. + * Fixes Bug #892744. Thanks to Matthew Fischer + * for spotting. + * + * Revision 1.41.2.6 2003/12/18 08:13:48 oes + * One line lost in last commit + * + * Revision 1.41.2.5 2003/12/17 16:33:47 oes + * - All edit functions that redirect back to the list page + * now use cgi_redirect + * - All redirects now contain useless parameter "foo", whose + * value are raw seconds since epoch, in order to force + * Opera and Konqueror to properly reload the list. Closes + * bug #859993 + * + * Revision 1.41.2.4 2003/03/11 11:53:59 oes + * Cosmetic: Renamed cryptic variable + * + * Revision 1.41.2.3 2002/11/12 15:01:41 oes + * Fix: Don't free uninitialized struct editable_file + * + * Revision 1.41.2.2 2002/08/05 20:02:59 oes + * Bugfix: "Insert new section at top" did not work properly if first non-comment line in file was of type FILE_LINE_ACTION + * + * Revision 1.41.2.1 2002/08/02 12:43:14 oes + * Fixed bug #588514: first_time now set on a per-string basis in actions_from_radio; javascriptify now called on copies + * + * Revision 1.41 2002/05/21 19:09:45 oes + * - Made Add/Edit/Remove URL Submit and Cancel + * buttons jump back to relevant section in eal + * - Bugfix: remove-url-form needs p export + * + * Revision 1.40 2002/05/19 11:34:35 jongfoster + * Handling read-only actions files better - report the actual + * error, not "Out of memory"! + * + * Bug report: + * http://sourceforge.net/tracker/index.php?func=detail + * &aid=557905&group_id=11118&atid=111118 + * + * Revision 1.39 2002/05/12 21:39:15 jongfoster + * - Adding Doxygen-style comments to structures and #defines. + * - Correcting function comments + * + * Revision 1.38 2002/05/03 23:00:38 jongfoster + * Support for templates for "standard actions" buttons. + * See bug #549871 + * + * Revision 1.37 2002/04/30 11:14:52 oes + * Made csp the first parameter in *action_to_html + * * Revision 1.36 2002/04/26 21:53:30 jongfoster * Fixing a memory leak. (Near, but not caused by, my earlier commit). * @@ -247,10 +381,6 @@ const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.36 2002/04/26 21:53:30 jongfoster #include #include -#ifdef _WIN32 -#define snprintf _snprintf -#endif /* def _WIN32 */ - #include "project.h" #include "cgi.h" #include "cgiedit.h" @@ -261,8 +391,10 @@ const char cgiedit_rcs[] = "$Id: cgiedit.c,v 1.36 2002/04/26 21:53:30 jongfoster #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; @@ -270,23 +402,49 @@ 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 { + + /** The name in the name=value pair. */ char * name; + + /** The value in the name=value pair, as a string. */ char * svalue; + + /** The value in the name=value pair, as an integer. */ int ivalue; + } setting; /* Add more data types here... e.g. @@ -303,42 +461,112 @@ struct file_line */ } 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 +/** + * 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/privoxy/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". */ + 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", + "F", "FILTER" + }, + { + ACTION_MULTI_CLIENT_HEADER_FILTER, + "client-header-filter-params", "client-header-filter", + "C", "CLIENT-HEADER-FILTER" + }, + { + ACTION_MULTI_SERVER_HEADER_FILTER, + "server-header-filter-params", "server-header-filter", + "S", "SERVER-HEADER-FILTER" + }, + { + ACTION_MULTI_CLIENT_HEADER_TAGGER, + "client-header-tagger-params", "client-header-tagger", + "L", "CLIENT-HEADER-TAGGER" + }, + { + ACTION_MULTI_SERVER_HEADER_TAGGER, + "server-header-tagger-params", "server-header-tagger", + "E", "SERVER-HEADER-TAGGER" + }, }; /* FIXME: Following non-static functions should be prototyped in .h or made static */ @@ -347,7 +575,6 @@ struct editable_file 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); @@ -370,8 +597,9 @@ jb_err cgi_error_parse(struct client_state *csp, 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); @@ -382,13 +610,6 @@ static int match_actions_file_header_line(const char * line, const char * name); 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_url_spec_param(struct client_state *csp, const struct map *parameters, const char *name, @@ -415,6 +636,64 @@ static jb_err map_copy_parameter_url(struct map *out, const char *name); #endif /* unused function */ +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 : section_target + * + * Description : Given an unsigned (section id) n, produce a dynamically + * allocated string of the form #l, 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 : sectionid = start line number of section + * + * Returns : String with link target, or NULL if out of + * memory + * + *********************************************************************/ +static char *section_target(const unsigned sectionid) +{ + char buf[30]; + + snprintf(buf, 30, "#l%d", sectionid); + return(strdup(buf)); + +} + + +/********************************************************************* + * + * 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), "%i", number); + return strdup(buf); +} + + /********************************************************************* * * Function : map_copy_parameter_html @@ -512,6 +791,7 @@ static jb_err map_copy_parameter_url(struct map *out, } #endif /* 0 - unused function */ + /********************************************************************* * * Function : cgi_edit_actions_url_form @@ -525,7 +805,7 @@ static jb_err map_copy_parameter_url(struct map *out, * 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 * @@ -544,6 +824,7 @@ jb_err cgi_edit_actions_url_form(struct client_state *csp, struct editable_file * file; struct file_line * cur_line; unsigned line_number; + unsigned section_start_line_number = 0; jb_err err; assert(csp); @@ -572,6 +853,10 @@ jb_err cgi_edit_actions_url_form(struct client_state *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; } @@ -591,10 +876,11 @@ jb_err cgi_edit_actions_url_form(struct client_state *csp, 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); @@ -679,7 +965,7 @@ jb_err cgi_edit_actions_add_url_form(struct client_state *csp, * 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 * @@ -698,6 +984,7 @@ jb_err cgi_edit_actions_remove_url_form(struct client_state *csp, struct editable_file * file; struct file_line * cur_line; unsigned line_number; + unsigned section_start_line_number = 0; jb_err err; assert(csp); @@ -726,6 +1013,10 @@ jb_err cgi_edit_actions_remove_url_form(struct client_state *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; } @@ -745,10 +1036,12 @@ jb_err cgi_edit_actions_remove_url_form(struct client_state *csp, 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); @@ -769,8 +1062,7 @@ jb_err cgi_edit_actions_remove_url_form(struct client_state *csp, * 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. @@ -823,7 +1115,7 @@ jb_err edit_write_file(struct editable_file * file) { /* Must quote '#' characters */ int numhash = 0; - int len; + size_t len; char * src; char * dest; char * str; @@ -838,29 +1130,44 @@ jb_err edit_write_file(struct editable_file * file) assert(numhash > 0); /* Allocate new memory for string */ - len = strlen(cur_line->unprocessed); - if (NULL == (str = malloc((size_t) len + 1 + numhash))) + len = strlen(cur_line->unprocessed) + (size_t)numhash; + if (NULL == (str = malloc(len + 1))) { /* Uh oh, just trashed file! */ fclose(fp); return JB_ERR_MEMORY; } - /* 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) { @@ -943,8 +1250,6 @@ void edit_free_file(struct editable_file * file) } 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 */ @@ -1078,8 +1383,8 @@ static int match_actions_file_header_line(const char * line, const char * name) * Parameters : * 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 @@ -1121,7 +1426,7 @@ static jb_err split_line_on_equals(const char * line, char ** pname, char ** pva name_end--; } - name_len = name_end - line + 1; /* Length excluding \0 */ + name_len = (size_t)(name_end - line) + 1; /* Length excluding \0 */ if (NULL == (*pname = (char *) malloc(name_len + 1))) { return JB_ERR_MEMORY; @@ -1457,6 +1762,7 @@ jb_err edit_parse_actions_file(struct editable_file * file) * 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 @@ -1538,13 +1844,11 @@ jb_err edit_read_file_lines(FILE *fp, struct file_line ** pfile, int *newline) * 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. @@ -1563,19 +1867,18 @@ jb_err edit_read_file_lines(FILE *fp, struct file_line ** pfile, int *newline) 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); @@ -1583,17 +1886,23 @@ jb_err edit_read_file(struct client_state *csp, *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 + */ + err = 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; @@ -1604,7 +1913,6 @@ jb_err edit_read_file(struct client_state *csp, err = get_number_param(csp, parameters, "v", &specified_version); if (err) { - free(filename); return err; } @@ -1616,7 +1924,6 @@ jb_err edit_read_file(struct client_state *csp, if (NULL == (fp = fopen(filename,"rb"))) { - free(filename); return JB_ERR_FILE; } @@ -1626,14 +1933,12 @@ jb_err edit_read_file(struct client_state *csp, if (err) { - free(filename); return err; } file = (struct editable_file *) zalloc(sizeof(*file)); if (err) { - free(filename); edit_free_file_lines(lines); return err; } @@ -1642,13 +1947,7 @@ jb_err edit_read_file(struct client_state *csp, 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); @@ -1688,8 +1987,7 @@ jb_err edit_read_file(struct client_state *csp, * 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. @@ -1719,7 +2017,7 @@ jb_err edit_read_actions_file(struct client_state *csp, *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 */ @@ -1771,32 +2069,16 @@ jb_err edit_read_actions_file(struct client_state *csp, * 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. + * 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 @@ -1807,25 +2089,23 @@ jb_err edit_read_actions_file(struct client_state *csp, 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) @@ -1833,8 +2113,6 @@ static jb_err get_file_name_param(struct client_state *csp, return JB_ERR_CGI_PARAMS; } - *pparam = param; - len = strlen(param); if (len >= FILENAME_MAX) { @@ -1842,7 +2120,10 @@ static jb_err get_file_name_param(struct client_state *csp, 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') { @@ -1858,13 +2139,14 @@ static jb_err get_file_name_param(struct client_state *csp, } /* Append extension */ - name = malloc(len + strlen(suffix) + 1); + name_size = len + strlen(suffix) + 1; + name = malloc(name_size); if (name == NULL) { return JB_ERR_MEMORY; } - strcpy(name, param); - strcpy(name + len, suffix); + strlcpy(name, param, name_size); + strlcat(name, suffix, name_size); /* Prepend path */ fullpath = make_path(csp->config->confdir, name); @@ -1875,10 +2157,22 @@ static jb_err get_file_name_param(struct client_state *csp, return JB_ERR_MEMORY; } - /* Success */ - *pfilename = fullpath; + /* Check if the file is known */ + for (i = 0; i < MAX_AF_FILES; i++) + { + if (NULL != csp->config->actions_file[i] && + !strcmp(fullpath, csp->config->actions_file[i])) + { + /* Success */ + *pfilename = csp->config->actions_file[i]; + freez(fullpath); - return JB_ERR_OK; + return JB_ERR_OK; + } + } + freez(fullpath); + + return JB_ERR_CGI_PARAMS; } @@ -2040,23 +2334,25 @@ static jb_err map_radio(struct map * exports, const char * values, int value) { - size_t 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); + buf = malloc(buf_size); if (buf == NULL) { return JB_ERR_MEMORY; } - strcpy(buf, optionname); + strlcpy(buf, optionname, buf_size); + + /* XXX: this looks ... interesting */ p = buf + len; *p++ = '-'; p[1] = '\0'; @@ -2073,7 +2369,7 @@ static jb_err map_radio(struct map * exports, } } - *p = value; + *p = (char)value; return map(exports, buf, 0, "checked", 1); } @@ -2158,7 +2454,7 @@ jb_err cgi_error_parse(struct client_state *csp, 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; @@ -2224,14 +2520,15 @@ jb_err cgi_error_file(struct client_state *csp, /********************************************************************* * - * Function : cgi_error_disabled + * Function : cgi_error_file_read_only * - * Description : CGI function that is called if the actions editor - * is called although it's disabled in config + * 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 + * 3 : filename = The file that we can't write to * * CGI Parameters : none * @@ -2239,20 +2536,30 @@ jb_err cgi_error_file(struct client_state *csp, * 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); } @@ -2285,20 +2592,9 @@ jb_err cgi_edit_actions(struct client_state *csp, } /* FIXME: Incomplete */ - rsp->status = strdup("302 Local Redirect from Privoxy"); - if (rsp->status == NULL) - { - return JB_ERR_MEMORY; - } - if (enlist_unique_header(rsp->headers, "Location", - CGI_PREFIX "edit-actions-list?f=default")) - { - 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"); + } @@ -2354,7 +2650,6 @@ jb_err cgi_edit_actions_list(struct client_state *csp, if (NULL == (exports = default_exports(csp, NULL))) { - edit_free_file(file); return JB_ERR_MEMORY; } @@ -2363,6 +2658,7 @@ jb_err cgi_edit_actions_list(struct client_state *csp, 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); } @@ -2393,13 +2689,32 @@ jb_err cgi_edit_actions_list(struct client_state *csp, { /* * Generate string with buttons to set actions for "/" to - * any predefined set of actions (named standard.*, propably + * any predefined set of actions (named standard.*, probably * residing in standard.action). - * FIXME: Shouldn't include hardwired HTML here, use line template instead! */ - buttons = strdup(" "); - for (i = 0; i < MAX_ACTION_FILES; i++) + 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)) { @@ -2407,20 +2722,42 @@ jb_err cgi_edit_actions_list(struct client_state *csp, { if (!strncmp(b->url->spec, "standard.", 9) && *(b->url->spec + 9) != '\0') { - snprintf(buf, 150, "

Set" - " to %s

", b->url->spec + 9, b->url->spec + 9); - if (!err) err = string_append(&buttons, buf); + if (err || (NULL == (section_exports = new_map()))) + { + freez(buttons); + free(section_template); + edit_free_file(file); + free_map(exports); + return JB_ERR_MEMORY; + } + + 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). */ - err = map_conditional(exports, "all-urls-present", 1); + if (!err) err = map_conditional(exports, "all-urls-present", 1); snprintf(buf, 150, "%d", line_number); if (!err) err = map(exports, "all-urls-s", 1, buf, 1); @@ -2447,18 +2784,19 @@ jb_err cgi_edit_actions_list(struct client_state *csp, * Non-standard actions file - does not begin with * the "All URLs" section. */ - err = map_conditional(exports, "all-urls-present", 0); + if (!err) err = map_conditional(exports, "all-urls-present", 0); } /* Set up global exports */ - err = map(exports, "f", 1, file->identifier, 1); + 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", - (strcmp("default", lookup(parameters, "f")) == 0)); + (strstr("default.action", file->filename) != NULL)); if (err) { edit_free_file(file); @@ -2501,7 +2839,6 @@ jb_err cgi_edit_actions_list(struct client_state *csp, free(url_template); edit_free_file(file); free_map(exports); - free(url_template); return err; } @@ -2675,12 +3012,13 @@ jb_err cgi_edit_actions_list(struct client_state *csp, /* Could also do section-specific exports here, but it wouldn't be as fast */ + snprintf(buf, 150, "%d", 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, 150, "%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 @@ -2774,8 +3112,8 @@ jb_err cgi_edit_actions_for_url(struct client_state *csp, struct file_line * cur_line; unsigned line_number; jb_err err; - struct file_list *filter_file; struct re_filterfile_spec *filter_group; + int i, have_filters = 0; if (0 == (csp->config->feature_flags & RUNTIME_FEATURE_CGI_EDIT_ACTIONS)) { @@ -2818,16 +3156,50 @@ jb_err cgi_edit_actions_for_url(struct client_state *csp, 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); - filter_file = csp->rlist; - filter_group = ((filter_file != NULL) ? filter_file->f : NULL); + /* + * XXX: Some browsers (at least IE6 and IE7) have an artifical 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 lenght 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"); + } - if (!err) err = map_conditional(exports, "any-filters-defined", (filter_group != NULL)); + 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; + } + } if (err) { @@ -2836,16 +3208,23 @@ jb_err cgi_edit_actions_for_url(struct client_state *csp, return err; } - if (filter_group == NULL) + if (0 == have_filters) { err = map(exports, "filter-params", 1, "", 1); } else { - /* We have some entries in the filter list */ - char * result; - int index = 0; - char * filter_template; + /* + * 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) @@ -2861,80 +3240,97 @@ jb_err cgi_edit_actions_for_url(struct client_state *csp, err = template_fill(&filter_template, exports); - result = strdup(""); - - for (;(!err) && (filter_group != NULL); filter_group = filter_group->next) + for (i = 0; i < MAX_AF_FILES; i++) { - char current_mode = 'x'; - struct list_entry *filter_name; - char * this_line; - struct map *line_exports; - char number[20]; - - filter_name = cur_line->data.action->multi_add[ACTION_MULTI_FILTER]->first; - while ((filter_name != NULL) - && (0 != strcmp(filter_group->name, filter_name->str))) + if ((csp->rlist[i] != NULL) && (csp->rlist[i]->f != NULL)) { - filter_name = filter_name->next; - } - - if (filter_name != NULL) - { - current_mode = 'y'; - } - else - { - filter_name = cur_line->data.action->multi_remove[ACTION_MULTI_FILTER]->first; - while ((filter_name != NULL) - && (0 != strcmp(filter_group->name, filter_name->str))) + filter_group = csp->rlist[i]->f; + for (;(!err) && (filter_group != NULL); filter_group = filter_group->next) { - filter_name = filter_name->next; - } - if (filter_name != NULL) - { - current_mode = 'n'; - } - } + 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; + } - /* Generate a unique serial number */ - snprintf(number, sizeof(number), "%x", index++); - number[sizeof(number) - 1] = '\0'; + 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'; + } + } - line_exports = new_map(); - if (line_exports == NULL) - { - err = JB_ERR_MEMORY; - freez(result); - } - else - { - 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); + /* Generate a unique serial number */ + snprintf(number, sizeof(number), "%x", filter_identifier++); + number[sizeof(number) - 1] = '\0'; - this_line = NULL; - if (!err) - { - this_line = strdup(filter_template); - if (this_line == NULL) err = JB_ERR_MEMORY; - } - if (!err) err = template_fill(&this_line, line_exports); - string_join(&result, this_line); + 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); + free_map(line_exports); + } + } } } - freez(filter_template); - if (!err) + /* Replace all filter macros with the aggregated templates */ + for (i = 0; i < MAX_FILTER_TYPES; i++) { - err = map(exports, "filter-params", 1, result, 0); + if (err) break; + err = map(exports, filter_type_info[i].macro_name, 1, prepared_templates[i], 0); } - else + + if (err) { - freez(result); + /* Free aggregated templates */ + for (i = 0; i < MAX_FILTER_TYPES; i++) + { + freez(prepared_templates[i]); + } } } @@ -2979,13 +3375,14 @@ jb_err cgi_edit_actions_submit(struct client_state *csp, unsigned sectionid; char * actiontext; char * newtext; + 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 index; + int filter_identifier; const char * action_set_name; char ch; struct file_list * fl; @@ -3029,9 +3426,9 @@ jb_err cgi_edit_actions_submit(struct client_state *csp, get_string_param(parameters, "p", &action_set_name); if (action_set_name != NULL) { - for (index = 0; index < MAX_ACTION_FILES; index++) + for (filter_identifier = 0; filter_identifier < MAX_AF_FILES; filter_identifier++) { - if (((fl = csp->actions_list[index]) != NULL) && ((b = fl->f) != NULL)) + if (((fl = csp->actions_list[filter_identifier]) != NULL) && ((b = fl->f) != NULL)) { for (b = b->next; NULL != b; b = b->next) { @@ -3072,18 +3469,29 @@ jb_err cgi_edit_actions_submit(struct client_state *csp, cur_line->data.action->multi_remove_all[ACTION_MULTI_FILTER] = 0; } - for (index = 0; !err; index++) + for (filter_identifier = 0; !err; filter_identifier++) { char key_value[30]; char key_name[30]; + char key_type[30]; const char *name; - char value; + 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", index); - key_value[sizeof(key_value) - 1] = '\0'; - snprintf(key_name, sizeof(key_name), "filter_n%x", index); - key_name[sizeof(key_name) - 1] = '\0'; + 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; @@ -3094,26 +3502,51 @@ jb_err cgi_edit_actions_submit(struct client_state *csp, 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[ACTION_MULTI_FILTER], name); - if (!err) err = enlist(cur_line->data.action->multi_add[ACTION_MULTI_FILTER], name); - list_remove_item(cur_line->data.action->multi_remove[ACTION_MULTI_FILTER], name); + 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[ACTION_MULTI_FILTER], name); - if (!cur_line->data.action->multi_remove_all[ACTION_MULTI_FILTER]) + 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[ACTION_MULTI_FILTER], name); - if (!err) err = enlist(cur_line->data.action->multi_remove[ACTION_MULTI_FILTER], name); + 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[ACTION_MULTI_FILTER], name); - list_remove_item(cur_line->data.action->multi_remove[ACTION_MULTI_FILTER], name); + 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); } } @@ -3141,14 +3574,15 @@ jb_err cgi_edit_actions_submit(struct client_state *csp, len = 1; } - if (NULL == (newtext = malloc(len + 2))) + newtext_size = len + 2; + if (NULL == (newtext = malloc(newtext_size))) { /* Out of memory */ free(actiontext); edit_free_file(file); return JB_ERR_MEMORY; } - strcpy(newtext, actiontext); + strlcpy(newtext, actiontext, newtext_size); free(actiontext); newtext[0] = '{'; newtext[len] = '}'; @@ -3162,31 +3596,21 @@ jb_err cgi_edit_actions_submit(struct client_state *csp, 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%d", + (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 Privoxy"); - 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); } @@ -3224,9 +3648,14 @@ jb_err cgi_edit_actions_url(struct client_state *csp, 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); @@ -3261,6 +3690,10 @@ jb_err cgi_edit_actions_url(struct client_state *csp, 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++; } @@ -3284,31 +3717,21 @@ jb_err cgi_edit_actions_url(struct client_state *csp, 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%d", + (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 Privoxy"); - 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); } @@ -3346,7 +3769,7 @@ jb_err cgi_edit_actions_add_url(struct client_state *csp, 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)) @@ -3423,31 +3846,21 @@ jb_err cgi_edit_actions_add_url(struct client_state *csp, 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%d", + (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 Privoxy"); - 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); } @@ -3483,7 +3896,8 @@ jb_err cgi_edit_actions_remove_url(struct client_state *csp, 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)) @@ -3510,6 +3924,10 @@ jb_err cgi_edit_actions_remove_url(struct client_state *csp, 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++; @@ -3539,31 +3957,21 @@ jb_err cgi_edit_actions_remove_url(struct client_state *csp, 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%d", + (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 Privoxy"); - 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); } @@ -3600,7 +4008,7 @@ jb_err cgi_edit_actions_section_remove(struct client_state *csp, 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)) @@ -3671,31 +4079,21 @@ jb_err cgi_edit_actions_section_remove(struct client_state *csp, 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", + (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 Privoxy"); - 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); } @@ -3733,7 +4131,7 @@ jb_err cgi_edit_actions_section_add(struct client_state *csp, 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)) @@ -3757,10 +4155,10 @@ jb_err cgi_edit_actions_section_add(struct client_state *csp, 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. @@ -3772,6 +4170,11 @@ jb_err cgi_edit_actions_section_add(struct client_state *csp, line_number++; } } + else + { + /* File starts with action line, so insert at top */ + cur_line = NULL; + } } else { @@ -3845,31 +4248,21 @@ jb_err cgi_edit_actions_section_add(struct client_state *csp, 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", + (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 Privoxy"); - 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); } @@ -3918,7 +4311,7 @@ jb_err cgi_edit_actions_section_swap(struct client_state *csp, 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)) @@ -4043,35 +4436,25 @@ jb_err cgi_edit_actions_section_swap(struct client_state *csp, 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=%i", + (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 Privoxy"); - 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); } - +#ifdef FEATURE_TOGGLE /********************************************************************* * * Function : cgi_toggle @@ -4115,17 +4498,17 @@ jb_err cgi_toggle(struct client_state *csp, if (mode == 'E') { /* Enable */ - g_bToggleIJB = 1; + global_toggle_state = 1; } else if (mode == 'D') { /* Disable */ - g_bToggleIJB = 0; + global_toggle_state = 0; } else if (mode == 'T') { /* Toggle */ - g_bToggleIJB = !g_bToggleIJB; + global_toggle_state = !global_toggle_state; } if (NULL == (exports = default_exports(csp, "toggle"))) @@ -4139,7 +4522,7 @@ jb_err cgi_toggle(struct client_state *csp, return template_fill_for_cgi(csp, template_name, exports, rsp); } - +#endif /* def FEATURE_TOGGLE */ /********************************************************************* * @@ -4328,7 +4711,6 @@ static jb_err actions_to_radio(struct map * exports, static jb_err actions_from_radio(const struct map * parameters, struct action_spec *action) { - static int first_time = 1; const char * param; char * param_dup; char ch; @@ -4342,16 +4724,22 @@ static jb_err actions_from_radio(const struct map * parameters, * 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) \ @@ -4447,8 +4835,6 @@ static jb_err actions_from_radio(const struct map * parameters, #undef DEFINE_ACTION_ALIAS #undef JAVASCRIPTIFY - first_time = 0; - return err; }