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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright 2001 Ximian, Inc. (www.ximian.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#ifndef CAMEL_CIPHER_CONTEXT_H
#define CAMEL_CIPHER_CONTEXT_H
#include <camel/camel-session.h>
#include <camel/camel-exception.h>
/* FIXME: camelise */
#include "libedataserver/e-msgport.h"
struct _CamelStream;
struct _CamelMimePart;
#ifdef __cplusplus
extern "C" {
#pragma }
#endif /* __cplusplus */
#define CAMEL_CIPHER_CONTEXT_TYPE (camel_cipher_context_get_type ())
#define CAMEL_CIPHER_CONTEXT(obj) (CAMEL_CHECK_CAST((obj), CAMEL_CIPHER_CONTEXT_TYPE, CamelCipherContext))
#define CAMEL_CIPHER_CONTEXT_CLASS(k) (CAMEL_CHECK_CLASS_CAST ((k), CAMEL_CIPHER_CONTEXT_TYPE, CamelCipherContextClass))
#define CAMEL_IS_CIPHER_CONTEXT(o) (CAMEL_CHECK_TYPE((o), CAMEL_CIPHER_CONTEXT_TYPE))
typedef struct _CamelCipherValidity CamelCipherValidity;
typedef struct _CamelCipherCertInfo CamelCipherCertInfo;
typedef enum {
CAMEL_CIPHER_HASH_DEFAULT,
CAMEL_CIPHER_HASH_MD2,
CAMEL_CIPHER_HASH_MD5,
CAMEL_CIPHER_HASH_SHA1,
CAMEL_CIPHER_HASH_RIPEMD160,
CAMEL_CIPHER_HASH_TIGER192,
CAMEL_CIPHER_HASH_HAVAL5160
} CamelCipherHash;
enum _camel_cipher_validity_sign_t {
CAMEL_CIPHER_VALIDITY_SIGN_NONE,
CAMEL_CIPHER_VALIDITY_SIGN_GOOD,
CAMEL_CIPHER_VALIDITY_SIGN_BAD,
CAMEL_CIPHER_VALIDITY_SIGN_UNKNOWN,
};
enum _camel_cipher_validity_encrypt_t {
CAMEL_CIPHER_VALIDITY_ENCRYPT_NONE,
CAMEL_CIPHER_VALIDITY_ENCRYPT_WEAK,
CAMEL_CIPHER_VALIDITY_ENCRYPT_ENCRYPTED, /* encrypted, unknown strenght */
CAMEL_CIPHER_VALIDITY_ENCRYPT_STRONG,
};
enum _camel_cipher_validity_mode_t {
CAMEL_CIPHER_VALIDITY_SIGN,
CAMEL_CIPHER_VALIDITY_ENCRYPT,
};
struct _CamelCipherCertInfo {
struct _CamelCipherCertInfo *next;
struct _CamelCipherCertInfo *prev;
char *name; /* common name */
char *email;
};
struct _CamelCipherValidity {
struct _CamelCipherValidity *next;
struct _CamelCipherValidity *prev;
EDList children;
struct {
enum _camel_cipher_validity_sign_t status;
char *description;
EDList signers; /* CamelCipherCertInfo's */
} sign;
struct {
enum _camel_cipher_validity_encrypt_t status;
char *description;
EDList encrypters; /* CamelCipherCertInfo's */
} encrypt;
};
typedef struct _CamelCipherContext {
CamelObject parent_object;
struct _CamelCipherContextPrivate *priv;
CamelSession *session;
/* these MUST be set by implementors */
const char *sign_protocol;
const char *encrypt_protocol;
const char *key_protocol;
} CamelCipherContext;
typedef struct _CamelCipherContextClass {
CamelObjectClass parent_class;
CamelCipherHash (*id_to_hash)(CamelCipherContext *context, const char *id);
const char * (*hash_to_id)(CamelCipherContext *context, CamelCipherHash hash);
int (*sign) (CamelCipherContext *context, const char *userid, CamelCipherHash hash,
struct _CamelMimePart *ipart, struct _CamelMimePart *opart, CamelException *ex);
CamelCipherValidity * (*verify) (CamelCipherContext *context, struct _CamelMimePart *ipart, CamelException *ex);
int (*encrypt) (CamelCipherContext *context, const char *userid,
GPtrArray *recipients, struct _CamelMimePart *ipart, struct _CamelMimePart *opart,
CamelException *ex);
CamelCipherValidity *(*decrypt) (CamelCipherContext *context, struct _CamelMimePart *ipart, struct _CamelMimePart *opart,
CamelException *ex);
int (*import_keys) (CamelCipherContext *context, struct _CamelStream *istream,
CamelException *ex);
int (*export_keys) (CamelCipherContext *context, GPtrArray *keys,
struct _CamelStream *ostream, CamelException *ex);
} CamelCipherContextClass;
CamelType camel_cipher_context_get_type (void);
CamelCipherContext *camel_cipher_context_new (CamelSession *session);
void camel_cipher_context_construct (CamelCipherContext *context, CamelSession *session);
/* cipher context util routines */
CamelCipherHash camel_cipher_id_to_hash (CamelCipherContext *context, const char *id);
const char * camel_cipher_hash_to_id (CamelCipherContext *context, CamelCipherHash hash);
/* FIXME:
There are some inconsistencies here, the api's should probably handle CamelMimePart's as input/outputs,
Something that might generate a multipart/signed should do it as part of that processing, internally
to the cipher, etc etc. */
/* cipher routines */
int camel_cipher_sign (CamelCipherContext *context, const char *userid, CamelCipherHash hash,
struct _CamelMimePart *ipart, struct _CamelMimePart *opart, CamelException *ex);
CamelCipherValidity *camel_cipher_verify (CamelCipherContext *context, struct _CamelMimePart *ipart, CamelException *ex);
int camel_cipher_encrypt (CamelCipherContext *context, const char *userid,
GPtrArray *recipients, struct _CamelMimePart *ipart, struct _CamelMimePart *opart,
CamelException *ex);
CamelCipherValidity *camel_cipher_decrypt (CamelCipherContext *context, struct _CamelMimePart *ipart, struct _CamelMimePart *opart,
CamelException *ex);
/* key/certificate routines */
int camel_cipher_import_keys (CamelCipherContext *context, struct _CamelStream *istream,
CamelException *ex);
int camel_cipher_export_keys (CamelCipherContext *context, GPtrArray *keys,
struct _CamelStream *ostream, CamelException *ex);
/* CamelCipherValidity utility functions */
CamelCipherValidity *camel_cipher_validity_new (void);
void camel_cipher_validity_init (CamelCipherValidity *validity);
gboolean camel_cipher_validity_get_valid (CamelCipherValidity *validity);
void camel_cipher_validity_set_valid (CamelCipherValidity *validity, gboolean valid);
char *camel_cipher_validity_get_description (CamelCipherValidity *validity);
void camel_cipher_validity_set_description (CamelCipherValidity *validity, const char *description);
void camel_cipher_validity_clear (CamelCipherValidity *validity);
CamelCipherValidity *camel_cipher_validity_clone(CamelCipherValidity *vin);
void camel_cipher_validity_add_certinfo(CamelCipherValidity *vin, enum _camel_cipher_validity_mode_t mode, const char *name, const char *email);
void camel_cipher_validity_envelope(CamelCipherValidity *valid, CamelCipherValidity *outer);
void camel_cipher_validity_free (CamelCipherValidity *validity);
/* utility functions */
int camel_cipher_canonical_to_stream(CamelMimePart *part, guint32 flags, CamelStream *ostream);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* CAMEL_CIPHER_CONTEXT_H */
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