CertificateManager.h

00001 #ifndef CERTIFICATE_MANAGER_H
00002 #define CERTIFICATE_MANAGER_H
00003 
00004 #include "mbed.h"
00005 #include <vector>
00006 #include <list>
00007 #include <string>
00008 #include "axTLS/ssl/crypto_misc.h "
00009 #include "cert_manager.h"
00010 
00011 
00012 /** This class is in charge of loading and storing certificates.
00013 
00014     Example:
00015     @code
00016     #include "mbed.h"
00017     #include "CertificateManager.h
00018     LocalFileSystem local("/local/");
00019 
00020     int main(void)
00021     {
00022         CertificateManager::add("/local/root.der");
00023         if(!CertificateManager::load())
00024             printf("Error while loading certificates\n");
00025 
00026         return 0;
00027     }
00028     @endcode
00029 */
00030 class CertificateManager
00031 {
00032 public :
00033 
00034     friend char is_precomputed(void);
00035     friend PrecomputedCertificate get_precomputed_cert(char *cert_dn[], char *ca_cert_dn[]);
00036     friend X509_CTX* get_cert(char *ca_cert_dn[]);
00037 
00038     /** Add a certificate to load.
00039 
00040         \param fileName Certificate's filename.
00041         \note This function does not load the certificate
00042         and does not check if the file exists.
00043     */
00044     static void add(const char *fileName);
00045 
00046     /** Load certificates.
00047 
00048         \param precompute Tells the certificate manager how to load
00049         certificates.
00050         \return True if certificates were loaded with
00051         success, false otherwise.
00052 
00053         \note If the loading fails, everything is cleared. So,
00054         you have to add again all certificates you need.
00055     */
00056     static bool load(const bool precompute = false);
00057 
00058     /** Clear everything.
00059         \note This function should be called once a TLS
00060         connection is established with success.
00061     */
00062     static void clear();
00063 
00064 private :
00065 
00066     CertificateManager();
00067     ~CertificateManager();
00068     static CertificateManager& instance();
00069 
00070     bool loadCertificates();
00071     bool loadPrecomputeCertificates();
00072     bool check(X509_CTX *cert1, X509_CTX* cert2);
00073 
00074     std::list<std::string> files;
00075     X509_CTX *certs;
00076     std::vector<PrecomputedCertificate> precomputedCerts;
00077 };
00078 
00079 
00080 #endif
00081