RetroShare/libretroshare/src/pqi/authgpg.h
drbob a023a0bfcd Major change to the way certificates are stored now defaults to ~/.retroshare/SSLID/
* supports Multiple Accounts on same computer.
	* Enabled libretroshare tests using Makefiles.
	* restructured RsInit functions: Config Data is now private.
	* switch OpenPGP on by default (added #define to rsinit).
	


git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1451 b45a01b8-16f6-495d-af2f-9b41ad6348cc
2009-07-30 21:27:47 +00:00

394 lines
11 KiB
C++

/*
* libretroshare/src/ : gpgauthmgr.h
*
* GPG interface for RetroShare.
*
* Copyright 2008-2009 by Raghu Dev R.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License Version 2 as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
* Please report all bugs and problems to "retroshare@lunamutt.com".
*
* This is *THE* auth manager. It provides the web-of-trust via
* gpgme, and authenticates the certificates that are managed
* by the sublayer AuthSSL.
*
*/
#ifndef RS_GPG_AUTH_HEADER
#define RS_GPG_AUTH_HEADER
//#include "p3authmgr.h"
#include "authssl.h"
#include <gpgme.h>
/* gpgcert is the identifier for a person.
* It is a wrapper class for a GPGme OpenPGP certificate.
*/
class gpgcert
{
public:
gpgcert();
~gpgcert();
pqiAuthDetails user;
gpgme_key_t key;
};
/*
* The certificate map type
*/
typedef std::map<std::string, gpgcert> certmap;
class GPGAuthMgr: public AuthSSL
{
private:
/* Internal functions */
bool setPGPPassword_locked(std::string pwd);
bool DoOwnSignature_locked(void *, unsigned int, void *, unsigned int *);
bool VerifySignature_locked(std::string id, void *data, int datalen,
void *sig, unsigned int siglen);
// store all keys in map mKeyList to avoid calling gpgme exe repeatedly
bool storeAllKeys_locked();
bool updateTrustAllKeys_locked();
bool printAllKeys_locked();
bool printOwnKeys_locked();
public:
GPGAuthMgr();
~GPGAuthMgr();
X509* SignX509Req(X509_REQ *req, long days, std::string);
bool AuthX509(X509 *x509);
bool availablePGPCertificates(std::list<std::string> &ids);
int GPGInit(std::string ownId);
int GPGInit(std::string name, std::string comment,
std::string email, std::string passwd); /* create it */
int LoadGPGPassword(std::string pwd);
/* Sign/Trust stuff */
int signCertificate(std::string id);
int revokeCertificate(std::string id); /* revoke the signature on Certificate */
int trustCertificate(std::string id, int trustlvl);
/* SKTAN */
void showData(gpgme_data_t dh);
void createDummyFriends(void); //NYI
bool printKeys();
/*********************************************************************************/
/************************* STAGE 1 ***********************************************/
/*********************************************************************************/
/*****
* STAGE 1: Initialisation.... As we are switching to OpenPGP the init functions
* will be different. Just move the initialisation functions over....
*
* As GPGMe requires external calls to the GPG executable, which could potentially
* be expensive, We'll want to cache the GPG keys in this class.
* This should be done at initialisation, and saved in a map.
* (see storage at the end of the class)
*
****/
/* initialisation -> done by derived classes */
bool active();
/* Init by generating new Own PGP Cert, or selecting existing PGP Cert
*/
/* Arguments passed on to AuthSSL */
int InitAuth(const char *srvr_cert, const char *priv_key,
const char *passwd);
bool CloseAuth();
// int setConfigDirectories(std::string confFile, std::string neighDir);
/*********************************************************************************/
/************************* STAGE 2 ***********************************************/
/*********************************************************************************/
/*****
* STAGE 2: These are some of the most commonly used functions in Retroshare.
*
* provide access to the cache list that was created in stage 1.
*
****/
/* get Certificate Ids */
std::string OwnId();
bool getAllList(std::list<std::string> &ids);
bool getAuthenticatedList(std::list<std::string> &ids);
bool getUnknownList(std::list<std::string> &ids);
/*********************************************************************************/
/************************* STAGE 3 ***********************************************/
/*********************************************************************************/
/*****
* STAGE 3: These are some of the most commonly used functions in Retroshare.
*
* More commonly used functions.
*
* provide access to details in cache list.
*
****/
/* get Details from the Certificates */
bool isValid(std::string id);
bool isAuthenticated(std::string id);
std::string getName(std::string id);
bool getDetails(std::string id, pqiAuthDetails &details);
virtual bool isTrustingMe(std::string);
virtual void addTrustingPeer(std::string);
/* PGP versions of Certificate Fns */
std::string PGPOwnId();
bool getPGPAllList(std::list<std::string> &ids);
bool getPGPAuthenticatedList(std::list<std::string> &ids);
bool getPGPUnknownList(std::list<std::string> &ids);
bool isPGPValid(std::string id);
bool isPGPAuthenticated(std::string id);
bool getPGPDetails(std::string id, pqiAuthDetails &details);
/*********************************************************************************/
/************************* STAGE 4 ***********************************************/
/*********************************************************************************/
/*****
* STAGE 4: Loading and Saving Certificates. (Strings and Files)
*
****/
/* Load/Save certificates */
bool LoadCertificateFromString(std::string pem, std::string &id);
std::string SaveCertificateToString(std::string id);
bool LoadCertificateFromFile(std::string filename, std::string &id);
bool SaveCertificateToFile(std::string id, std::string filename);
/*********************************************************************************/
/************************* STAGE 5 ***********************************************/
/*********************************************************************************/
/*****
* STAGE 5: Loading and Saving Certificates (Binary)
*
* The existing function arguments are based on OpenSSL functions.
* Feel free to change this format if required.
*
****/
bool LoadCertificateFromBinary(const uint8_t *ptr, uint32_t len, std::string &id);
bool SaveCertificateToBinary(std::string id, uint8_t **ptr, uint32_t *len);
/*********************************************************************************/
/************************* STAGE 6 ***********************************************/
/*********************************************************************************/
/*****
* STAGE 6: Authentication, Trust and Signing.
*
* This is some of the harder functions, but they should have been
* done in gpgroot already.
*
****/
/* Signatures */
bool AuthCertificate(std::string uid);
bool SignCertificate(std::string id);
bool RevokeCertificate(std::string id); /* Particularly hard - leave for later */
bool TrustCertificate(std::string id, bool trust);
/*********************************************************************************/
/************************* STAGE 7 ***********************************************/
/*********************************************************************************/
/*****
* STAGE 7: Signing Data.
*
* There should also be Encryption Functions... (do later).
*
****/
#if 0
virtual bool SignData(std::string input, std::string &sign);
virtual bool SignData(const void *data, const uint32_t len, std::string &sign);
virtual bool SignDataBin(std::string input, unsigned char *sign, unsigned int *signlen);
virtual bool SignDataBin(const void *data, const uint32_t len,
unsigned char *sign, unsigned int *signlen);
virtual bool VerifySignBin(std::string, const void*, uint32_t, unsigned char*, unsigned int);
#endif
/*********************************************************************************/
/************************* PGP Specific functions ********************************/
/*********************************************************************************/
/*
* These support the authentication process.
*
*/
/************* Virtual Functions from AuthSSL *************/
virtual bool ValidateCertificate(X509 *x509, std::string &peerId);
virtual int VerifyX509Callback(int preverify_ok, X509_STORE_CTX *ctx);
/************* Virtual Functions from AuthSSL *************/
/*
*
*/
bool checkSignature(std::string id, std::string hash, std::string signature);
/*********************************************************************************/
/************************* OTHER FUNCTIONS ***************************************/
/*********************************************************************************/
/* High Level Load/Save Configuration */
/*****
* These functions call straight through to AuthSSL.
* We don't need these functions here - as GPG stores the keys for us.
bool FinalSaveCertificates();
bool CheckSaveCertificates();
bool saveCertificates();
bool loadCertificates();
****/
private:
RsMutex pgpMtx;
/* Below is protected via the mutex */
certmap mKeyList;
bool gpgmeInit;
bool gpgmeKeySelected;
bool gpgmeX509Selected;
gpgme_engine_info_t INFO;
gpgme_ctx_t CTX;
std::string mOwnId;
std::string mX509id;
gpgcert mOwnGpgCert;
std::string passphrase;
};
/*****
*
* Support Functions for OpenSSL verification.
*
*/
//int verify_pgp_callback(int preverify_ok, X509_STORE_CTX *ctx);
/* Sign a key */
typedef enum
{
SIGN_START,
SIGN_COMMAND,
SIGN_UIDS,
SIGN_SET_EXPIRE,
SIGN_SET_CHECK_LEVEL,
SIGN_ENTER_PASSPHRASE,
SIGN_CONFIRM,
SIGN_QUIT,
SIGN_SAVE,
SIGN_ERROR
} SignState;
/* Change the key ownertrust */
typedef enum
{
TRUST_START,
TRUST_COMMAND,
TRUST_VALUE,
TRUST_REALLY_ULTIMATE,
TRUST_QUIT,
TRUST_SAVE,
TRUST_ERROR
} TrustState;
/* This is the generic data object passed to the
* callback function in a gpgme_op_edit operation.
* The contents of this object are modified during
* each callback, to keep track of states, errors
* and other data.
*/
class EditParams
{
public:
int state;
/* The return code of gpgme_op_edit() is the return value of
* the last invocation of the callback. But returning an error
* from the callback does not abort the edit operation, so we
* must remember any error.
*/
gpg_error_t err;
/* Parameters specific to the key operation */
void *oParams;
EditParams(int state, void *oParams) {
this->state = state;
this->err = gpgme_error(GPG_ERR_NO_ERROR);
this->oParams = oParams;
}
};
/* Data specific to key signing */
class SignParams
{
public:
std::string checkLvl;
std::string passphrase;
SignParams(std::string checkLvl, std::string passphrase) {
this->checkLvl = checkLvl;
this->passphrase = passphrase;
}
};
#endif