added virtual destructors to base classes

and bumped version to 0.4

Signed-off-by: Michael Krelin <hacker@klever.net>

4 files changed, 8 insertions, 0 deletions

diff --git a/include/opkele/consumer.h b/include/opkele/consumer.h
index b9d1e54..50ff692 100644
--- a/include/opkele/consumer.h
+++ b/include/opkele/consumer.h
@@ -1,166 +1,168 @@
 #ifndef __OPKELE_CONSUMER_H
 #define __OPKELE_CONSUMER_H
 
 #include <opkele/types.h>
 #include <opkele/extension.h>
 
 /**
  * @file
  * @brief OpenID consumer-side functionality
  */
 
 namespace opkele {
 
     /**
      * implementation of basic consumer functionality
      *
      * @note
      * The consumer uses libcurl internally, which means that if you're using
      * libopkele in multithreaded environment you should call curl_global_init
      * yourself before spawning any threads.
      */
     class consumer_t {
 	public:
 
+	    virtual ~consumer_t() { }
+
 	    /**
 	     * store association. The function should be overridden in the real
 	     * implementation to provide persistent associations store.
 	     * @param server the OpenID server
 	     * @param handle association handle
 	     * @param secret the secret associated with the server and handle
 	     * @param expires_in the number of seconds until the handle is expired
 	     * @return the auto_ptr<> for the newly allocated association_t object
 	     */
 	    virtual assoc_t store_assoc(const string& server,const string& handle,const secret_t& secret,int expires_in) = 0;
 	    /**
 	     * retrieve stored association. The function should be overridden
 	     * in the real implementation to provide persistent assocations
 	     * store.
 	     *
 	     * @note
 	     * The user is responsible for handling associations expiry and
 	     * this function should never return an expired or invalidated
 	     * association.
 	     *
 	     * @param server the OpenID server
 	     * @param handle association handle
 	     * @return the autho_ptr<> for the newly allocated association_t object
 	     * @throw failed_lookup if no unexpired association found
 	     */
 	    virtual assoc_t retrieve_assoc(const string& server,const string& handle) = 0;
 	    /**
 	     * invalidate stored association. The function should be overridden
 	     * in the real implementation of the consumer.
 	     * @param server the OpenID server
 	     * @param handle association handle
 	     */
 	    virtual void invalidate_assoc(const string& server,const string& handle) = 0;
 	    /**
 	     * retrieve any unexpired association for the server. If the
 	     * function is not overridden in the real implementation, the new
 	     * association will be established for each request.
 	     *
 	     * @note
 	     * The user is responsible for handling associations and this
 	     * function should never return an expired or invalidated
 	     * association.
 	     *
 	     * @param server the OpenID server
 	     * @return the auto_ptr<> for the newly allocated association_t object
 	     * @throw failed_lookup in case of absence of the handle
 	     */
 	    virtual assoc_t find_assoc(const string& server);
 
 	    /**
 	     * retrieve the metainformation contained in link tags from the
 	     * page pointed by url. the function may implement caching of the
 	     * information.
 	     * @param url url to harvest for link tags
 	     * @param server reference to the string object where to put
 	     * openid.server value
 	     * @param delegate reference to the string object where to put the
 	     * openid.delegate value (if any)
 	     */
 	    virtual void retrieve_links(const string& url,string& server,string& delegate);
 
 	    /**
 	     * perform the associate request to OpenID server.
 	     * @param server the OpenID server
 	     * @return the auto_ptr<> for the newly allocated association_t
 	     * object, representing established association
 	     * @throw exception in case of error
 	     */
 	    assoc_t associate(const string& server);
 	    /**
 	     * prepare the parameters for the checkid_immediate
 	     * request.
 	     * @param identity the identity to verify
 	     * @param return_to the return_to url to pass with the request
 	     * @param trust_root the trust root to advertise with the request
 	     * @param ext pointer to an extension(s) hooks object
 	     * @return the location string
 	     * @throw exception in case of error
 	     */
 	    virtual string checkid_immediate(const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0);
 	    /**
 	     * prepare the parameters for the checkid_setup
 	     * request.
 	     * @param identity the identity to verify
 	     * @param return_to the return_to url to pass with the request
 	     * @param trust_root the trust root to advertise with the request
 	     * @param ext pointer to an extension(s) hooks object
 	     * @return the location string
 	     * @throw exception in case of error
 	     */
 	    virtual string checkid_setup(const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0);
 	    /**
 	     * the actual implementation behind checkid_immediate() and
 	     * checkid_setup() functions.
 	     * @param mode checkid_* mode - either mode_checkid_immediate or mode_checkid_setup
 	     * @param identity the identity to verify
 	     * @param return_to the return_to url to pass with the request
 	     * @param trust_root the trust root to advertise with the request
 	     * @param ext pointer to an extension(s) hooks object
 	     * @return the location string
 	     * @throw exception in case of error
 	     */
 	    virtual string checkid_(mode_t mode,const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0);
 	    /**
 	     * verify the id_res response
 	     * @param pin the response parameters
 	     * @param identity the identity being checked (if not specified,
 	     * @param ext pointer to an extension(s) hooks object
 	     * extracted from the openid.identity parameter
 	     * @throw id_res_mismatch in case of signature mismatch
 	     * @throw id_res_setup in case of openid.user_setup_url failure
 	     * (supposedly checkid_immediate only)
 	     * @throw id_res_failed in case of failure
 	     * @throw exception in case of other failures
 	     */
 	    virtual void id_res(const params_t& pin,const string& identity="",extension_t *ext=0);
 	    /**
 	     * perform a check_authentication request.
 	     * @param server the OpenID server
 	     * @param p request parameters
 	     */
 	    void check_authentication(const string& server,const params_t& p);
 
 	    /**
 	     * normalize URL by adding http:// and trailing slash if needed.
 	     * @param url
 	     * @return normalized url
 	     */
 	    static string normalize(const string& url);
 
 	    /**
 	     * Canonicalize URL, by normalizing its appearance and following redirects.
 	     * @param url
 	     * @return canonicalized url
 	     */
 	    virtual string canonicalize(const string& url);
 
     };
 
 }
 
 #endif /* __OPKELE_CONSUMER_H */
diff --git a/include/opkele/extension.h b/include/opkele/extension.h
index ea0c74c..513672f 100644
--- a/include/opkele/extension.h
+++ b/include/opkele/extension.h
@@ -1,63 +1,65 @@
 #ifndef __OPKELE_EXTENSION_H
 #define __OPKELE_EXTENSION_H
 
 /**
  * @file
  * @brief extensions framework basics
  */
 
 #include <opkele/types.h>
 
 namespace opkele {
 
     /**
      * OpenID extension hooks base class
      */
     class extension_t {
 	public:
+
+	    virtual ~extension_t() { }
 	    /**
 	     * hook called by consumer before submitting data to OpenID server.
 	     * It is supposed to manipulate parameters list.
 	     * @param p parameters about to be submitted to server
 	     * @param identity identity being verified. It may differ from the
 	     * one available in parameters list in case of delegation
 	     * @see consumer_t::checkid_
 	     * @see consumer_t::checkid_immediate
 	     * @see consumer_t::checkid_setup
 	     */
 	    virtual void checkid_hook(params_t& p,const string& identity);
 	    /**
 	     * hook called by consumer after identity information received from
 	     * OpenID server is verified.
 	     * @param p parameters received from server
 	     * @param sp signed parameters received from server with 'openid.'
 	     * leader stripped
 	     * @param identity identity confirmed. May differ from the one
 	     * available in parameters list in case of delegation. May also be
 	     * empty which means - extract one from parameters
 	     * @see consumer_t::id_res
 	     */
 	    virtual void id_res_hook(const params_t& p,const params_t& sp,const string& identity);
 
 	    /**
 	     * hook called by server before returning information to consumer.
 	     * The hook may manipulate output parameters. It is important to
 	     * note that modified pout["signed"] is used for signing response.
 	     * @param pin request parameters list with "openid." prefix
 	     * @param pout response parameters list without "openid." prefix
 	     * @see server_t::checkid_
 	     * @see server_t::checkid_immediate
 	     * @see server_t::checkid_setup
 	     */
 	    virtual void checkid_hook(const params_t& pin,params_t& pout);
 
 	    /**
 	     * Casts the object to pointer to itself. For convenient passing
 	     * of pointer.
 	     */
 	    operator extension_t*(void) { return this; }
     };
 
 }
 
 #endif /* __OPKELE_EXTENSION_H */
diff --git a/include/opkele/server.h b/include/opkele/server.h
index e7e5bb3..dd7fc41 100644
--- a/include/opkele/server.h
+++ b/include/opkele/server.h
@@ -1,96 +1,98 @@
 #ifndef __OPKELE_SERVER_H
 #define __OPKELE_SERVER_H
 
 /**
  * @file
  * @brief OpenID server-side functionality
  */
 
 #include <opkele/types.h>
 #include <opkele/extension.h>
 
 namespace opkele {
 
     /**
      * implementation of basic server functionality
      */
     class server_t {
 	public:
 
+	    virtual ~server_t() { }
+
 	    /**
 	     * allocate the new association. The function should be overridden
 	     * in the real implementation to provide persistent assocations
 	     * store.
 	     * @param mode the mode of request being processed to base the
 	     * statelessness of the association upon
 	     * @return the auto_ptr<> for the newly allocated association_t object
 	     */
 	    virtual assoc_t alloc_assoc(mode_t mode) = 0;
 	    /**
 	     * retrieve the association. The function should be overridden in
 	     * the reqal implementation to provide persistent assocations
 	     * store.
 	     * @param h association handle
 	     * @return the auto_ptr<> for the newly allocated association_t object
 	     * @throw failed_lookup in case of failure
 	     */
 	    virtual assoc_t retrieve_assoc(const string& h) = 0;
 
 	    /**
 	     * validate the identity.
 	     * @param assoc association object
 	     * @param pin incoming request parameters
 	     * @param identity being verified
 	     * @param trust_root presented in the request
 	     * @throw exception if identity can not be confirmed
 	     */
 	    virtual void validate(const association_t& assoc,const params_t& pin,const string& identity,const string& trust_root) = 0;
 
 
 	    /**
 	     * process the associate request.
 	     * @param pin the incoming request parameters
 	     * @param pout the store for the response parameters
 	     */
 	    void associate(const params_t& pin,params_t& pout);
 	    /**
 	     * process the checkid_immediate request.
 	     * @param pin the incoming request parameters
 	     * @param return_to reference to the object to store return_to url to
 	     * @param pout the response parameters
 	     * @param ext pointer to the extension hooks object
 	     * @throw exception in case of errors or negative reply
 	     */
 	    virtual void checkid_immediate(const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0);
 	    /**
 	     * process the checkid_setup request.
 	     * @param pin the incoming request parameters
 	     * @param return_to reference to the object to store return_to url to
 	     * @param pout the response parameters
 	     * @param ext pointer to the extension hooks object
 	     * @throw exception in case of errors or negative reply
 	     */
 	    virtual void checkid_setup(const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0);
 	    /**
 	     * the actual functionality behind checkid_immediate() and
 	     * checkid_setup()
 	     * @param mode the request being processed (either
 	     * mode_checkid_immediate or mode_checkid_setup)
 	     * @param pin the incoming request parameters
 	     * @param return_to reference to the object to store return_to url to
 	     * @param pout the response parameters
 	     * @param ext pointer to the extension hooks object
 	     * @throw exception in case of errors or negative reply
 	     */
 	    virtual void checkid_(mode_t mode,const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0);
 	    /**
 	     * process the check_authentication request.
 	     * @param pin incoming request parameters
 	     * @param pout response parameters
 	     */
 	    void check_authentication(const params_t& pin,params_t& pout);
     };
 
 }
 
 #endif /* __OPKELE_SERVER_H */
diff --git a/include/opkele/types.h b/include/opkele/types.h
index 8f4bf73..f732a1e 100644
--- a/include/opkele/types.h
+++ b/include/opkele/types.h
@@ -1,170 +1,172 @@
 #ifndef __OPKELE_TYPES_H
 #define __OPKELE_TYPES_H
 
 /**
  * @file
  * @brief various types declarations
  */
 
 #include <ostream>
 #include <vector>
 #include <string>
 #include <map>
 #include <memory>
 
 namespace opkele {
     using std::vector;
     using std::string;
     using std::map;
     using std::ostream;
     using std::auto_ptr;
 
     /**
      * the OpenID operation mode
      */
     typedef enum _mode_t {
 	mode_associate,
 	mode_checkid_immediate,
 	mode_checkid_setup,
 	mode_check_association
     } mode_t;
 
     /**
      * the association secret container
      */
     class secret_t : public vector<unsigned char> {
 	public:
 
 	    /**
 	     * xor the secret and hmac together and encode, using base64
 	     * @param key_sha1 pointer to the sha1 digest
 	     * @param rv reference to the return value
 	     */
 	    void enxor_to_base64(const unsigned char *key_sha1,string& rv) const;
 	    /**
 	     * decode base64-encoded secret and xor it with the sha1 digest
 	     * @param key_sha1 pointer to the message digest
 	     * @param b64 base64-encoded secret value
 	     */
 	    void enxor_from_base64(const unsigned char *key_sha1,const string& b64);
 	    /**
 	     * plainly encode to base64 representation
 	     * @param rv reference to the return value
 	     */
 	    void to_base64(string& rv) const;
 	    /**
 	     * decode cleartext secret from base64
 	     * @param b64 base64-encoded representation of the secret value
 	     */
 	    void from_base64(const string& b64);
     };
 
     /**
      * Interface to the association.
      */
     class association_t {
 	public:
 
+	    virtual ~association_t() { }
+
 	    /**
 	     * retrieve the server with which association was established.
 	     * @return server name
 	     */
 	    virtual string server() const = 0;
 	    /**
 	     * retrieve the association handle.
 	     * @return handle
 	     */
 	    virtual string handle() const = 0;
 	    /**
 	     * retrieve the association type.
 	     * @return association type
 	     */
 	    virtual string assoc_type() const = 0;
 	    /**
 	     * retrieve the association secret.
 	     * @return association secret
 	     */
 	    virtual secret_t secret() const = 0; 
 	    /**
 	     * retrieve the number of seconds the association expires in.
 	     * @return seconds till expiration
 	     */
 	    virtual int expires_in() const = 0;
 	    /**
 	     * check whether the association is stateless.
 	     * @return true if stateless
 	     */
 	    virtual bool stateless() const = 0;
 	    /**
 	     * check whether the association is expired.
 	     * @return true if expired
 	     */
 	    virtual bool is_expired() const = 0;
     };
 
     /**
      * the auto_ptr<> for association_t object type
      */
     typedef auto_ptr<association_t> assoc_t;
 
     /**
      * request/response parameters map
      */
     class params_t : public map<string,string> {
 	public:
 
 	    /**
 	     * check whether the parameter is present.
 	     * @param n the parameter name
 	     * @return true if yes
 	     */
 	    bool has_param(const string& n) const;
 	    /**
 	     * retrieve the parameter (const version)
 	     * @param n the parameter name
 	     * @return the parameter value
 	     * @throw failed_lookup if there is no such parameter
 	     */
 	    const string& get_param(const string& n) const;
 	    /**
 	     * retrieve the parameter.
 	     * @param n the parameter name
 	     * @return the parameter value
 	     * @throw failed_lookup if there is no such parameter
 	     */
 	    string& get_param(const string& n);
 
 	    /**
 	     * parse the OpenID key/value data.
 	     * @param kv the OpenID key/value data
 	     */
 	    void parse_keyvalues(const string& kv);
 	    /**
 	     * sign the fields.
 	     * @param secret the secret used for signing
 	     * @param sig reference to the string, containing base64-encoded
 	     * result
 	     * @param slist the comma-separated list of fields to sign
 	     * @param prefix the string to prepend to parameter names
 	     */
 	    void sign(secret_t secret,string& sig,const string& slist,const char *prefix=0) const;
 
 	    /**
 	     * append parameters to the URL as a GET-request parameters.
 	     * @param url the base URL
 	     * @param prefix the string to prepend to parameter names
 	     * @return the ready-to-use location
 	     */
 	    string append_query(const string& url,const char *prefix = "openid.") const;
     };
 
     /**
      * dump the key/value pairs for the parameters to the stream.
      * @param o output stream
      * @param p the parameters
      */
     ostream& operator << (ostream& o,const params_t& p);
 
 }
 
 #endif /* __OPKELE_TYPES_H */