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https://github.com/RetroShare/RetroShare.git
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af68fa36ce
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@2068 b45a01b8-16f6-495d-af2f-9b41ad6348cc
334 lines
10 KiB
C++
334 lines
10 KiB
C++
/*
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* libretroshare/src/ : gpgauthmgr.h
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*
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* GPG interface for RetroShare.
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*
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* Copyright 2008-2009 by Raghu Dev R.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License Version 2 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA.
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*
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* Please report all bugs and problems to "retroshare@lunamutt.com".
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*
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* This is *THE* auth manager. It provides the web-of-trust via
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* gpgme, and authenticates the certificates that are managed
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* by the sublayer AuthSSL.
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*
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*/
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/****
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* Here's GPG policy :
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* By default, all pgpg keys imported via a RS user (make friend and accept friend action) are signed at level 0.
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* All signed keys by RS are set to be trusted marginally. You can change it to full or no trust in the friend profile
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* For a key to be marginaly valid, it has to be signed by one fully trusted key, or at least by 3 marginally trusted keys.
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* All keys that have at least marginal validity are designed as valid in RS. They are shown in the RS gui in order to be signed.
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* If there is no validity then the key is not shown.
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*/
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#ifndef RS_GPG_AUTH_HEADER
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#define RS_GPG_AUTH_HEADER
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#include <gpgme.h>
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#include <openssl/ssl.h>
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#include <openssl/evp.h>
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#include "util/rsthreads.h"
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#include "rsiface/rspeers.h"
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#include <string>
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#include <list>
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#include <set>
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#include <map>
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#include "pqi/p3cfgmgr.h"
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#define GPG_id std::string
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/* gpgcert is the identifier for a person.
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* It is a wrapper class for a GPGme OpenPGP certificate.
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*/
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class gpgcert
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{
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public:
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gpgcert();
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~gpgcert();
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std::string id;
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std::string name;
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std::string email;
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std::string fpr; /* fingerprint */
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std::list<std::string> signers;
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uint32_t trustLvl;
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uint32_t validLvl;
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bool ownsign;
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//This is not gpg, but RS data. A gpg peer can be accepted for connecting but not signed.
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bool accept_connection;
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gpgme_key_t key;
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};
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/*
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* The certificate map type
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*/
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typedef std::map<std::string, gpgcert> certmap;
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class AuthGPG : public p3Config
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{
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private:
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/* Internal functions */
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bool DoOwnSignature_locked(const void *, unsigned int, void *, unsigned int *);
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bool VerifySignature_locked(const void *data, int datalen, const void *sig, unsigned int siglen, std::string withfingerprint);
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/* Sign/Trust stuff */
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int privateSignCertificate(GPG_id id);
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int privateRevokeCertificate(GPG_id id); /* revoke the signature on Certificate */
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int privateTrustCertificate(GPG_id id, int trustlvl);
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// store all keys in map mKeyList to avoid calling gpgme exe repeatedly
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bool storeAllKeys_locked();
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bool updateTrustAllKeys_locked();
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bool printAllKeys_locked();
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bool printOwnKeys_locked();
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public:
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AuthGPG();
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~AuthGPG();
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bool availableGPGCertificatesWithPrivateKeys(std::list<std::string> &ids);
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/* SKTAN */
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void showData(gpgme_data_t dh);
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void createDummyFriends(void); //NYI
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bool printKeys();
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/*********************************************************************************/
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/************************* STAGE 1 ***********************************************/
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/*********************************************************************************/
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/*****
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* STAGE 1: Initialisation.... As we are switching to OpenPGP the init functions
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* will be different. Just move the initialisation functions over....
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*
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* As GPGMe requires external calls to the GPG executable, which could potentially
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* be expensive, We'll want to cache the GPG keys in this class.
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* This should be done at initialisation, and saved in a map.
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* (see storage at the end of the class)
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*
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****/
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bool active();
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/* Init by generating new Own PGP Cert, or selecting existing PGP Cert */
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int GPGInit(std::string ownId);
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bool CloseAuth();
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bool GeneratePGPCertificate(std::string name, std::string email, std::string passwd, std::string &pgpId, std::string &errString);
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/*********************************************************************************/
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/************************* STAGE 3 ***********************************************/
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/*********************************************************************************/
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/*****
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* STAGE 3: These are some of the most commonly used functions in Retroshare.
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*
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* More commonly used functions.
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*
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* provide access to details in cache list.
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*
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****/
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std::string getGPGName(GPG_id pgp_id);
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std::string getGPGEmail(GPG_id pgp_id);
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/* PGP web of trust management */
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std::string getGPGOwnId();
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std::string getGPGOwnName();
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std::string getGPGOwnEmail();
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bool getGPGDetails(std::string id, RsPeerDetails &d);
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bool getGPGAllList(std::list<std::string> &ids);
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bool getGPGValidList(std::list<std::string> &ids);
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bool getGPGAcceptedList(std::list<std::string> &ids);
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bool getGPGSignedList(std::list<std::string> &ids);
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bool isGPGValid(std::string id);
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bool isGPGSigned(std::string id);
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bool isGPGAccepted(std::string id);
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bool isGPGId(GPG_id id);
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/*********************************************************************************/
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/************************* STAGE 4 ***********************************************/
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/*********************************************************************************/
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/*****
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* STAGE 4: Loading and Saving Certificates. (Strings and Files)
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*
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****/
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bool LoadCertificateFromString(std::string pem, std::string &gpg_id);
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std::string SaveCertificateToString(std::string id);
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/*********************************************************************************/
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/************************* STAGE 6 ***********************************************/
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/*********************************************************************************/
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/*****
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* STAGE 6: Authentication, Trust and Signing.
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*
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* This is some of the harder functions, but they should have been
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* done in gpgroot already.
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*
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****/
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bool setAcceptToConnectGPGCertificate(std::string gpg_id, bool acceptance); //don't act on the gpg key, use a seperate set
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bool SignCertificateLevel0(std::string id);
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bool RevokeCertificate(std::string id); /* Particularly hard - leave for later */
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bool TrustCertificateNone(std::string id);
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bool TrustCertificateMarginally(std::string id);
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bool TrustCertificateFully(std::string id);
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bool TrustCertificate(std::string id, int trustlvl); //trustlvl is 2 for none, 3 for marginal and 4 for full trust
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/*********************************************************************************/
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/************************* STAGE 7 ***********************************************/
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/*********************************************************************************/
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/*****
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* STAGE 7: Signing Data.
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*
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* There should also be Encryption Functions... (do later).
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*
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****/
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bool SignData(std::string input, std::string &sign);
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bool SignData(const void *data, const uint32_t len, std::string &sign);
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bool SignDataBin(std::string input, unsigned char *sign, unsigned int *signlen);
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bool SignDataBin(const void *data, const uint32_t len, unsigned char *sign, unsigned int *signlen);
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bool VerifySignBin(const void*, uint32_t, unsigned char*, unsigned int, std::string withfingerprint);
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bool decryptText(gpgme_data_t CIPHER, gpgme_data_t PLAIN);
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bool encryptText(gpgme_data_t PLAIN, gpgme_data_t CIPHER);
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//END of PGP public functions
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static AuthGPG *getAuthGPG() throw() // pour obtenir l'instance
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{ return instance_gpg; }
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protected:
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/*****************************************************************/
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/*********************** p3config ******************************/
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/* Key Functions to be overloaded for Full Configuration */
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virtual RsSerialiser *setupSerialiser();
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virtual std::list<RsItem *> saveList(bool &cleanup);
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virtual bool loadList(std::list<RsItem *> load);
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/*****************************************************************/
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private:
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static AuthGPG *instance_gpg; // pointeur vers le singleton
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RsMutex pgpMtx;
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/* Below is protected via the mutex */
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certmap mKeyList;
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bool gpgmeInit;
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bool gpgmeKeySelected;
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bool gpgmeX509Selected;
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gpgme_engine_info_t INFO;
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gpgme_ctx_t CTX;
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std::string mOwnGpgId;
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std::string mOwnGpgName;
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std::string mOwnGpgEmail;
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std::string mX509id;
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std::map<std::string, bool> mAcceptToConnectMap;
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gpgcert mOwnGpgCert;
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};
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/* Sign a key */
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typedef enum
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{
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SIGN_START,
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SIGN_COMMAND,
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SIGN_UIDS,
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SIGN_SET_EXPIRE,
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SIGN_SET_CHECK_LEVEL,
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SIGN_ENTER_PASSPHRASE,
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SIGN_CONFIRM,
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SIGN_QUIT,
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SIGN_SAVE,
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SIGN_ERROR
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} SignState;
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/* Change the key ownertrust */
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typedef enum
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{
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TRUST_START,
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TRUST_COMMAND,
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TRUST_VALUE,
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TRUST_REALLY_ULTIMATE,
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TRUST_QUIT,
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TRUST_SAVE,
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TRUST_ERROR
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} TrustState;
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/* This is the generic data object passed to the
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* callback function in a gpgme_op_edit operation.
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* The contents of this object are modified during
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* each callback, to keep track of states, errors
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* and other data.
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*/
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class EditParams
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{
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public:
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int state;
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/* The return code of gpgme_op_edit() is the return value of
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* the last invocation of the callback. But returning an error
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* from the callback does not abort the edit operation, so we
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* must remember any error.
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*/
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gpg_error_t err;
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/* Parameters specific to the key operation */
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void *oParams;
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EditParams(int state, void *oParams) {
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this->state = state;
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this->err = gpgme_error(GPG_ERR_NO_ERROR);
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this->oParams = oParams;
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}
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};
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/* Data specific to key signing */
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class SignParams
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{
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public:
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std::string checkLvl;
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SignParams(std::string checkLvl) {
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this->checkLvl = checkLvl;
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}
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};
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/* Data specific to key signing */
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class TrustParams
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{
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public:
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std::string trustLvl;
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TrustParams(std::string trustLvl) {
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this->trustLvl = trustLvl;
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}
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};
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#endif
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