#include "apr.h"
#include "apr_strings.h"
#include "apr_file_io.h"
#include "apr_lib.h"
#include "apr_want.h"
#include "ap_config.h"
#include "httpd.h"
#include "http_config.h"
#include "http_request.h"
#include "http_protocol.h"
#include "http_core.h"
#include "http_log.h"
#include "util_script.h"

Classes
struct	neg_dir_config

struct	accept_rec

struct	var_rec

struct	negotiation_state

Macros
#define	APR_WANT_STRFUNC

#define	MAP_FILE_MAGIC_TYPE "application/x-type-map"

#define	FLP_UNDEF 0 /* Same as FLP_DEFAULT, but base overrides */

#define	FLP_NONE 1 /* Return 406, HTTP_NOT_ACCEPTABLE */

#define	FLP_PREFER 2 /* Use language_priority rather than MC */

#define	FLP_FALLBACK 4 /* Use language_priority rather than NA */

#define	FLP_DEFAULT FLP_PREFER

#define	DISCARD_ALL_ENCODINGS 1 /* no-gzip */

#define	DISCARD_ALL_BUT_HTML 2 /* gzip-only-text/html */

Typedefs
typedef struct accept_rec	accept_rec

typedef struct var_rec	var_rec

Enumerations
enum	header_state { header_eof , header_seen , header_sep }

enum	algorithm_results { alg_choice = 1 , alg_list }

Functions
static void *	create_neg_dir_config (apr_pool_t p, char dummy)

static void *	merge_neg_dir_configs (apr_pool_t p, void basev, void *addv)

static const char *	set_language_priority (cmd_parms cmd, void n_, const char *lang)

static const char *	set_force_priority (cmd_parms cmd, void n_, const char *w)

static const char *	cache_negotiated_docs (cmd_parms cmd, void dummy, int arg)

static int	do_cache_negotiated_docs (server_rec *s)

static void	clean_var_rec (var_rec *mime_info)

static void	set_mime_fields (var_rec var, accept_rec mime_info)

static void	set_vlist_validator (request_rec r, request_rec vlistr)

static float	atoq (const char *string)

static const char *	get_entry (apr_pool_t p, accept_rec result, const char *accept_line)

static apr_array_header_t *	do_header_line (apr_pool_t p, const char accept_line)

static apr_array_header_t *	do_languages_line (apr_pool_t p, const char *lang_line)

static negotiation_state *	parse_accept_headers (request_rec *r)

static void	parse_negotiate_header (request_rec r, negotiation_state neg)

static void	maybe_add_default_accepts (negotiation_state *neg, int prefer_scripts)

static enum header_state	get_header_line (char buffer, int len, apr_file_t map)

static apr_off_t	get_body (char buffer, apr_size_t len, const char tag, apr_file_t map)

static void	strip_paren_comments (char *hdr)

static char *	lcase_header_name_return_body (char header, request_rec r)

static int	read_type_map (apr_file_t *map, negotiation_state neg, request_rec *rr)

static int	variantsortf (var_rec a, var_rec b)

static int	read_types_multi (negotiation_state *neg)

static int	mime_match (accept_rec accept_r, var_rec avail)

static int	level_cmp (var_rec var1, var_rec var2)

static int	find_lang_index (apr_array_header_t accept_langs, char lang)

static void	set_default_lang_quality (negotiation_state *neg)

static void	set_language_quality (negotiation_state neg, var_rec variant)

static apr_off_t	find_content_length (negotiation_state neg, var_rec variant)

static void	set_accept_quality (negotiation_state neg, var_rec variant)

static void	set_charset_quality (negotiation_state neg, var_rec variant)

static int	is_identity_encoding (const char *enc)

static void	set_encoding_quality (negotiation_state neg, var_rec variant)

static int	is_variant_better_rvsa (negotiation_state neg, var_rec variant, var_rec best, float p_bestq)

static int	is_variant_better (negotiation_state neg, var_rec variant, var_rec best, float p_bestq)

static int	variant_has_language (var_rec variant, const char lang)

static int	discard_variant_by_env (var_rec *variant, int discard)

static int	best_match (negotiation_state neg, var_rec *pbest)

static void	set_neg_headers (request_rec r, negotiation_state neg, int alg_result)

static char *	make_variant_list (request_rec r, negotiation_state neg)

static void	store_variant_list (request_rec r, negotiation_state neg)

static int	setup_choice_response (request_rec r, negotiation_state neg, var_rec *variant)

static int	do_negotiation (request_rec r, negotiation_state neg, var_rec **bestp, int prefer_scripts)

static int	handle_map_file (request_rec *r)

static int	handle_multi (request_rec *r)

static int	fix_encoding (request_rec *r)

static void	register_hooks (apr_pool_t *p)

Variables
static const command_rec	negotiation_cmds []

static int *const	aplog_module_index = &( negotiation_module.module_index)

Macro Definition Documentation

◆ APR_WANT_STRFUNC

#define APR_WANT_STRFUNC

Definition at line 29 of file mod_negotiation.c.

◆ DISCARD_ALL_BUT_HTML

#define DISCARD_ALL_BUT_HTML 2 /* gzip-only-text/html */

Definition at line 65 of file mod_negotiation.c.

◆ DISCARD_ALL_ENCODINGS

#define DISCARD_ALL_ENCODINGS 1 /* no-gzip */

Definition at line 64 of file mod_negotiation.c.

◆ FLP_DEFAULT

#define FLP_DEFAULT FLP_PREFER

Definition at line 60 of file mod_negotiation.c.

◆ FLP_FALLBACK

#define FLP_FALLBACK 4 /* Use language_priority rather than NA */

Definition at line 58 of file mod_negotiation.c.

◆ FLP_NONE

#define FLP_NONE 1 /* Return 406, HTTP_NOT_ACCEPTABLE */

Definition at line 56 of file mod_negotiation.c.

◆ FLP_PREFER

#define FLP_PREFER 2 /* Use language_priority rather than MC */

Definition at line 57 of file mod_negotiation.c.

◆ FLP_UNDEF

#define FLP_UNDEF 0 /* Same as FLP_DEFAULT, but base overrides */

Definition at line 55 of file mod_negotiation.c.

◆ MAP_FILE_MAGIC_TYPE

#define MAP_FILE_MAGIC_TYPE "application/x-type-map"

Definition at line 42 of file mod_negotiation.c.

Typedef Documentation

◆ accept_rec

typedef struct accept_rec accept_rec

◆ var_rec

typedef struct var_rec var_rec

Enumeration Type Documentation

◆ algorithm_results

enum algorithm_results

Enumerator
alg_choice
alg_list

Definition at line 2005 of file mod_negotiation.c.

◆ header_state

enum header_state

Enumerator
header_eof
header_seen
header_sep

Definition at line 740 of file mod_negotiation.c.

Function Documentation

◆ atoq()

static float atoq ( const char * string )

static

Definition at line 363 of file mod_negotiation.c.

◆ best_match()

static int best_match	(	negotiation_state *	neg,
		var_rec **	pbest
	)

static

Definition at line 2271 of file mod_negotiation.c.

◆ cache_negotiated_docs()

static const char * cache_negotiated_docs	(	cmd_parms *	cmd,
		void *	dummy,
		int	arg
	)

static

Definition at line 142 of file mod_negotiation.c.

◆ clean_var_rec()

static void clean_var_rec ( var_rec * mime_info )

static

Definition at line 279 of file mod_negotiation.c.

◆ create_neg_dir_config()

static void * create_neg_dir_config	(	apr_pool_t *	p,
		char *	dummy
	)

static

Definition at line 69 of file mod_negotiation.c.

◆ discard_variant_by_env()

static int discard_variant_by_env	(	var_rec *	variant,
		int	discard
	)

static

Definition at line 2258 of file mod_negotiation.c.

◆ do_cache_negotiated_docs()

static int do_cache_negotiated_docs ( server_rec * s )

static

Definition at line 150 of file mod_negotiation.c.

◆ do_header_line()

static apr_array_header_t * do_header_line	(	apr_pool_t *	p,
		const char *	accept_line
	)

static

Definition at line 516 of file mod_negotiation.c.

◆ do_languages_line()

static apr_array_header_t * do_languages_line	(	apr_pool_t *	p,
		const char **	lang_line
	)

static

Definition at line 539 of file mod_negotiation.c.

◆ do_negotiation()

static int do_negotiation	(	request_rec *	r,
		negotiation_state *	neg,
		var_rec **	bestp,
		int	prefer_scripts
	)

static

RFC 2616: HTTP

< Module has handled this stage.

Definition at line 2808 of file mod_negotiation.c.

◆ find_content_length()

static apr_off_t find_content_length	(	negotiation_state *	neg,
		var_rec *	variant
	)

static

< Size of the file

Definition at line 1736 of file mod_negotiation.c.

◆ find_lang_index()

static int find_lang_index	(	apr_array_header_t *	accept_langs,
		char *	lang
	)

static

Definition at line 1448 of file mod_negotiation.c.

◆ fix_encoding()

static int fix_encoding ( request_rec * r )

static

< Module declines to handle

< Module has handled this stage.

< Module declines to handle

Definition at line 3163 of file mod_negotiation.c.

◆ get_body()

static apr_off_t get_body	(	char *	buffer,
		apr_size_t *	len,
		const char *	tag,
		apr_file_t *	map
	)

static

Definition at line 828 of file mod_negotiation.c.

◆ get_entry()

static const char * get_entry	(	apr_pool_t *	p,
		accept_rec *	result,
		const char *	accept_line
	)

static

Definition at line 409 of file mod_negotiation.c.

◆ get_header_line()

static enum header_state get_header_line	(	char *	buffer,
		int	len,
		apr_file_t *	map
	)

static

Definition at line 744 of file mod_negotiation.c.

◆ handle_map_file()

static int handle_map_file ( request_rec * r )

static

< Module declines to handle

RFC 2616: HTTP

< Module has handled this stage.

Definition at line 2954 of file mod_negotiation.c.

◆ handle_multi()

static int handle_multi ( request_rec * r )

static

< Module declines to handle

RFC 2616: HTTP

< Module has handled this stage.

Definition at line 3073 of file mod_negotiation.c.

◆ is_identity_encoding()

static int is_identity_encoding ( const char * enc )

static

Definition at line 1920 of file mod_negotiation.c.

◆ is_variant_better()

static int is_variant_better	(	negotiation_state *	neg,
		var_rec *	variant,
		var_rec *	best,
		float *	p_bestq
	)

static

Definition at line 2100 of file mod_negotiation.c.

◆ is_variant_better_rvsa()

static int is_variant_better_rvsa	(	negotiation_state *	neg,
		var_rec *	variant,
		var_rec *	best,
		float *	p_bestq
	)

static

Definition at line 2033 of file mod_negotiation.c.

◆ lcase_header_name_return_body()

static char * lcase_header_name_return_body	(	char *	header,
		request_rec *	r
	)

static

Definition at line 905 of file mod_negotiation.c.

◆ level_cmp()

static int level_cmp	(	var_rec *	var1,
		var_rec *	var2
	)

static

Definition at line 1390 of file mod_negotiation.c.

◆ make_variant_list()

static char * make_variant_list	(	request_rec *	r,
		negotiation_state *	neg
	)

static

Definition at line 2618 of file mod_negotiation.c.

◆ maybe_add_default_accepts()

static void maybe_add_default_accepts	(	negotiation_state *	neg,
		int	prefer_scripts
	)

static

Definition at line 703 of file mod_negotiation.c.

◆ merge_neg_dir_configs()

static void * merge_neg_dir_configs	(	apr_pool_t *	p,
		void *	basev,
		void *	addv
	)

static

Definition at line 79 of file mod_negotiation.c.

◆ mime_match()

static int mime_match	(	accept_rec *	accept_r,
		var_rec *	avail
	)

static

< Module has handled this stage.

Definition at line 1327 of file mod_negotiation.c.

◆ parse_accept_headers()

static negotiation_state * parse_accept_headers ( request_rec * r )

static

Definition at line 565 of file mod_negotiation.c.

◆ parse_negotiate_header()

static void parse_negotiate_header	(	request_rec *	r,
		negotiation_state *	neg
	)

static

Definition at line 610 of file mod_negotiation.c.

◆ read_type_map()

static int read_type_map	(	apr_file_t **	map,
		negotiation_state *	neg,
		request_rec *	rr
	)

static

< Open the file for reading

<

Deprecated:

See also: APR_FOPEN_READ

< Open the file for buffered I/O

<

Deprecated:

See also: APR_FOPEN_BUFFERED

< use OS's default permissions

<

Deprecated:

See also: APR_FPROT_OS_DEFAULT

< Module has handled this stage.

Definition at line 934 of file mod_negotiation.c.

◆ read_types_multi()

static int read_types_multi ( negotiation_state * neg )

static

< Module declines to handle

< an atomic unix apr_dir_read()

< Type

< Module has handled this stage.

Definition at line 1084 of file mod_negotiation.c.

◆ register_hooks()

static void register_hooks ( apr_pool_t * p )

static

Definition at line 3207 of file mod_negotiation.c.

◆ set_accept_quality()

static void set_accept_quality	(	negotiation_state *	neg,
		var_rec *	variant
	)

static

Definition at line 1765 of file mod_negotiation.c.

◆ set_charset_quality()

static void set_charset_quality	(	negotiation_state *	neg,
		var_rec *	variant
	)

static

Definition at line 1845 of file mod_negotiation.c.

◆ set_default_lang_quality()

static void set_default_lang_quality ( negotiation_state * neg )

static

Definition at line 1484 of file mod_negotiation.c.

◆ set_encoding_quality()

static void set_encoding_quality	(	negotiation_state *	neg,
		var_rec *	variant
	)

static

Definition at line 1938 of file mod_negotiation.c.

◆ set_force_priority()

static const char * set_force_priority	(	cmd_parms *	cmd,
		void *	n_,
		const char *	w
	)

static

Definition at line 110 of file mod_negotiation.c.

◆ set_language_priority()

static const char * set_language_priority	(	cmd_parms *	cmd,
		void *	n_,
		const char *	lang
	)

static

Definition at line 96 of file mod_negotiation.c.

◆ set_language_quality()

static void set_language_quality	(	negotiation_state *	neg,
		var_rec *	variant
	)

static

Definition at line 1534 of file mod_negotiation.c.

◆ set_mime_fields()

static void set_mime_fields	(	var_rec *	var,
		accept_rec *	mime_info
	)

static

Definition at line 309 of file mod_negotiation.c.

◆ set_neg_headers()

static void set_neg_headers	(	request_rec *	r,
		negotiation_state *	neg,
		int	alg_result
	)

static

Definition at line 2433 of file mod_negotiation.c.

◆ set_vlist_validator()

static void set_vlist_validator	(	request_rec *	r,
		request_rec *	vlistr
	)

static

Definition at line 323 of file mod_negotiation.c.

◆ setup_choice_response()

static int setup_choice_response	(	request_rec *	r,
		negotiation_state *	neg,
		var_rec *	variant
	)

static

Definition at line 2693 of file mod_negotiation.c.

◆ store_variant_list()

static void store_variant_list	(	request_rec *	r,
		negotiation_state *	neg
	)

static

Definition at line 2676 of file mod_negotiation.c.

◆ strip_paren_comments()

static void strip_paren_comments ( char * hdr )

static

Definition at line 875 of file mod_negotiation.c.

◆ variant_has_language()

static int variant_has_language	(	var_rec *	variant,
		const char *	lang
	)

static

Definition at line 2239 of file mod_negotiation.c.

◆ variantsortf()

static int variantsortf	(	var_rec *	a,
		var_rec *	b
	)

static

Definition at line 1061 of file mod_negotiation.c.

Variable Documentation

◆ aplog_module_index

int* const aplog_module_index = &( negotiation_module.module_index)

static

Definition at line 3214 of file mod_negotiation.c.

◆ negotiation_cmds

const command_rec negotiation_cmds[]

static

Initial value:

=
{
    
{  "CacheNegotiatedDocs" ,  cache_negotiated_docs ,  NULL ,   128   , FLAG,  "Either 'on' or 'off' (default)"  },
    
{  "LanguagePriority" ,  set_language_priority ,  NULL ,   4   , ITERATE,  "space-delimited list of MIME language abbreviations"  },
    
{  "ForceLanguagePriority" ,  set_force_priority ,  NULL ,   4   , ITERATE,  "Force LanguagePriority elections, either None, or "                     "Fallback and/or Prefer"  },
    {NULL}
}

Definition at line 156 of file mod_negotiation.c.

Classes

Macros

Typedefs

Enumerations

Functions

Variables

Macro Definition Documentation

◆ APR_WANT_STRFUNC

◆ DISCARD_ALL_BUT_HTML

◆ DISCARD_ALL_ENCODINGS

◆ FLP_DEFAULT

◆ FLP_FALLBACK

◆ FLP_NONE

◆ FLP_PREFER

◆ FLP_UNDEF

◆ MAP_FILE_MAGIC_TYPE

Typedef Documentation

◆ accept_rec

◆ var_rec

Enumeration Type Documentation

◆ algorithm_results

◆ header_state

Function Documentation

◆ atoq()

◆ best_match()

◆ cache_negotiated_docs()

◆ clean_var_rec()

◆ create_neg_dir_config()

◆ discard_variant_by_env()

◆ do_cache_negotiated_docs()

◆ do_header_line()

◆ do_languages_line()

◆ do_negotiation()

◆ find_content_length()

◆ find_lang_index()

◆ fix_encoding()

◆ get_body()

◆ get_entry()

◆ get_header_line()

◆ handle_map_file()

◆ handle_multi()

◆ is_identity_encoding()

◆ is_variant_better()

◆ is_variant_better_rvsa()

◆ lcase_header_name_return_body()

◆ level_cmp()

◆ make_variant_list()

◆ maybe_add_default_accepts()

◆ merge_neg_dir_configs()

◆ mime_match()

◆ parse_accept_headers()

◆ parse_negotiate_header()

◆ read_type_map()

◆ read_types_multi()

◆ register_hooks()

◆ set_accept_quality()

◆ set_charset_quality()

◆ set_default_lang_quality()

◆ set_encoding_quality()

◆ set_force_priority()

◆ set_language_priority()

◆ set_language_quality()

◆ set_mime_fields()

◆ set_neg_headers()

◆ set_vlist_validator()

◆ setup_choice_response()

◆ store_variant_list()

◆ strip_paren_comments()

◆ variant_has_language()

◆ variantsortf()

Variable Documentation

◆ aplog_module_index

◆ negotiation_cmds