cookie.c File Reference

HTTP cookie parsing and construction helpers. More...

#include <cwist/net/http/cookie.h>
#include <cwist/core/mem/alloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

Include dependency graph for cookie.c:

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Macros
#define	_POSIX_C_SOURCE   200809L

Functions
char *	cwist_cookie_encode (const char *value)
	URL-encode a string for safe cookie values.
int	cwist_cookie_decode (const char *in, char *out, size_t out_len)
	URL-decode a cookie value in-place into a caller-owned buffer.
void	cwist_cookie_parse (cwist_query_map *map, const char *header)
	Parse a Cookie header value into a query-style map.
const char *	cwist_cookie_get (cwist_query_map *map, const char *name)
	Get a cookie value by name from a parsed map.
int	cwist_cookie_set (cwist_http_response *res, const char *name, const char *value, const cwist_cookie_options *opts)
	Add a Set-Cookie header to the response.
int	cwist_cookie_delete (cwist_http_response *res, const char *name)
	Add a Set-Cookie header that deletes a cookie.

Detailed Description

HTTP cookie parsing and construction helpers.

Definition in file cookie.c.

Macro Definition Documentation

_POSIX_C_SOURCE

#define _POSIX_C_SOURCE   200809L

Definition at line 5 of file cookie.c.

Function Documentation

cwist_cookie_decode()

int cwist_cookie_decode	(	const char *	in,
		char *	out,
		size_t	out_len
	)

URL-decode a cookie value in-place into a caller-owned buffer.

Parameters

in	Encoded value.
out	Output buffer.
out_len	Size of output buffer.

Returns

Number of bytes written, or -1 on overflow.

Definition at line 55 of file cookie.c.

References cap.

Referenced by cwist_cookie_parse().

cwist_cookie_delete()

int cwist_cookie_delete	(	cwist_http_response *	res,
		const char *	name
	)

Add a Set-Cookie header that deletes a cookie.

Definition at line 167 of file cookie.c.

References cap, cwist_sstring_append(), cwist_sstring_create(), and cwist_sstring_destroy().

Referenced by cwist_session_commit().

cwist_cookie_encode()

char * cwist_cookie_encode

(

const char *

value

)

URL-encode a string for safe cookie values.

Returns

Heap-encoded string, or NULL on allocation failure. Caller frees.

Definition at line 35 of file cookie.c.

References cap, and cwist_alloc().

Referenced by cwist_cookie_set().

cwist_cookie_get()

const char * cwist_cookie_get	(	cwist_query_map *	map,
		const char *	name
	)

Get a cookie value by name from a parsed map.

Returns

Pointer to value, or NULL if not found.

Definition at line 114 of file cookie.c.

References cap, and cwist_query_map_get().

Referenced by cwist_session_start().

cwist_cookie_parse()

void cwist_cookie_parse	(	cwist_query_map *	map,
		const char *	header
	)

Parse a Cookie header value into a query-style map.

Handles "name1=value1; name2=value2" format. Values are URL-decoded.

Parameters

map	Map to populate. Must be created by cwist_query_map_create().
header	Raw Cookie header value (may be NULL).

Definition at line 80 of file cookie.c.

References cap, cwist_cookie_decode(), cwist_free(), cwist_query_map_set(), and cwist_strdup().

Referenced by cwist_session_start().

cwist_cookie_set()

int cwist_cookie_set	(	cwist_http_response *	res,
		const char *	name,
		const char *	value,
		const cwist_cookie_options *	opts
	)

Add a Set-Cookie header to the response.

Parameters

res	Response to modify.
name	Cookie name.
value	Cookie value (will be encoded).
opts	Optional attributes. May be NULL for defaults.

Returns

0 on success, -1 on failure.

Definition at line 119 of file cookie.c.

References cap, cwist_cookie_encode(), cwist_free(), cwist_sstring_append(), cwist_sstring_create(), cwist_sstring_destroy(), cwist_strdup(), cwist_cookie_options::domain, cwist_cookie_options::http_only, cwist_cookie_options::max_age_seconds, cwist_cookie_options::path, cwist_cookie_options::same_site, and cwist_cookie_options::secure.

Referenced by cwist_session_commit().