Added Requested Attributes sending and receiving support to
[silc.git] / lib / silcclient / silcclient.h
index 928650c788e8bfff98e8dd81c6b9bbec974bf0ad..e301f1581d0c08d04fcac2f5be456ac0d935441a 100644 (file)
@@ -92,6 +92,8 @@ typedef enum {
   SILC_KEY_AGREEMENT_FAILURE,         /* The protocol failed */
   SILC_KEY_AGREEMENT_TIMEOUT,         /* The protocol timeout */
   SILC_KEY_AGREEMENT_ABORTED,         /* The protocol aborted */
+  SILC_KEY_AGREEMENT_ALREADY_STARTED,  /* Already started */
+  SILC_KEY_AGREEMENT_SELF_DENIED,      /* Negotiationg with itself denied */
 } SilcKeyAgreementStatus;
 /***/
 
@@ -336,8 +338,8 @@ typedef struct {
      after application has called the command. Just to tell application
      that the command really was processed. */
   void (*command)(SilcClient client, SilcClientConnection conn, 
-                 SilcClientCommandContext cmd_context, int success,
-                 SilcCommand command);
+                 SilcClientCommandContext cmd_context, bool success,
+                 SilcCommand command, SilcStatus status);
 
   /* Command reply handler. This function is called always in the command reply
      function. If error occurs it will be called as well. Normal scenario
@@ -362,8 +364,8 @@ typedef struct {
      ID. For example, if Client ID is receives application receives 
      SilcClientEntry. */
   void (*command_reply)(SilcClient client, SilcClientConnection conn,
-                       SilcCommandPayload cmd_payload, int success,
-                       SilcCommand command, SilcCommandStatus status, ...);
+                       SilcCommandPayload cmd_payload, bool success,
+                       SilcCommand command, SilcStatus status, ...);
 
   /* Called to indicate that connection was either successfully established
      or connecting failed.  This is also the first time application receives
@@ -374,8 +376,12 @@ typedef struct {
   void (*connect)(SilcClient client, SilcClientConnection conn,
                  SilcClientConnectionStatus status);
 
-  /* Called to indicate that connection was disconnected to the server. */
-  void (*disconnect)(SilcClient client, SilcClientConnection conn);
+  /* Called to indicate that connection was disconnected to the server.
+     The `status' may tell the reason of the disconnection, and if the
+     `message' is non-NULL it may include the disconnection message
+     received from server. */
+  void (*disconnect)(SilcClient client, SilcClientConnection conn,
+                    SilcStatus status, const char *message);
 
   /* Find authentication method and authentication data by hostname and
      port. The hostname may be IP address as well. When the authentication
@@ -555,6 +561,15 @@ typedef struct {
      nickname string whenever it needs the true nickname. */
   SilcNicknameFormatParse nickname_parse;
 
+  /* If this is set to TRUE then the client will ignore all incoming
+     Requested Attributes queries and does not reply anything back.  This
+     usually leads into situation where server does not anymore send
+     the queries after seeing that client does not reply anything back.
+     If your application does not support Requested Attributes or you do
+     not want to use them set this to TRUE.  See SilcAttribute and
+     silc_client_attribute_add for more information on attributes. */
+  bool ignore_requested_attributes;
+
 } SilcClientParams;
 /***/
 
@@ -1063,6 +1078,7 @@ SilcClientEntry silc_client_get_client_by_id(SilcClient client,
  *    silc_client_get_client_by_id_resolve(SilcClient client,
  *                                         SilcClientConnection conn,
  *                                         SilcClientID *client_id,
+ *                                         SilcBuffer attributes,
  *                                         SilcGetClientCallback completion,
  *                                         void *context);
  *
@@ -1074,10 +1090,18 @@ SilcClientEntry silc_client_get_client_by_id(SilcClient client,
  *    is its ID. When server returns the client information it will be
  *    cache and can be accessed locally at a later time.
  *
+ *    If the `attributes' is non-NULL then the buffer includes Requested
+ *    Attributes which can be used to fetch very detailed information
+ *    about the user. If it is NULL then only normal WHOIS query is
+ *    made (for more information about attributes see SilcAttribute).
+ *    Caller may create the `attributes' with silc_client_attributes_request
+ *    function.
+ *
  ***/
 void silc_client_get_client_by_id_resolve(SilcClient client,
                                          SilcClientConnection conn,
                                          SilcClientID *client_id,
+                                         SilcBuffer attributes,
                                          SilcGetClientCallback completion,
                                          void *context);
 
@@ -1140,16 +1164,14 @@ SilcChannelEntry silc_client_get_channel(SilcClient client,
                                         SilcClientConnection conn,
                                         char *channel);
 
-/****f* silcclient/SilcClientAPI/silc_client_get_channel_id_resolve
+/****f* silcclient/SilcClientAPI/silc_client_get_channel_by_id
  *
  * SYNOPSIS
  *
- *    void 
- *    silc_client_get_channel_by_id_resolve(SilcClient client,
- *                                          SilcClientConnection conn,
- *                                          SilcChannelID *channel_id,
- *                                          SilcGetClientCallback completion,
- *                                          void *context);
+ *    SilcChannelEntry
+ *    silc_client_get_channel_by_id(SilcClient client,
+ *                                  SilcClientConnection conn,
+ *                                  SilcChannelID *channel_id);
  *
  * DESCRIPTION
  *
@@ -2128,6 +2150,7 @@ silc_client_file_send(SilcClient client,
  *                             SilcClientConnection conn,
  *                             SilcClientFileMonitor monitor,
  *                             void *monitor_context,
+ *                             const char *path,
  *                             SilcUInt32 session_id);
  *
  * DESCRIPTION
@@ -2137,7 +2160,9 @@ silc_client_file_send(SilcClient client,
  *    received in the `ftp' client operation function.  This will actually
  *    perform the key agreement protocol with the remote client before
  *    actually starting the file transmission.  The `monitor' callback
- *    will be called to monitor the transmission.
+ *    will be called to monitor the transmission.  If `path' is non NULL
+ *    the file will be saved into that directory.  If NULL the file is
+ *    saved in the current working directory.
  *
  *    If error will occur during the file transfer process the error
  *    status will be returned in the monitor callback.  In this case
@@ -2150,6 +2175,7 @@ silc_client_file_receive(SilcClient client,
                         SilcClientConnection conn,
                         SilcClientFileMonitor monitor,
                         void *monitor_context,
+                        const char *path,
                         SilcUInt32 session_id);
 
 /****f* silcclient/SilcClientAPI/silc_client_file_close
@@ -2173,6 +2199,103 @@ SilcClientFileError silc_client_file_close(SilcClient client,
                                           SilcClientConnection conn,
                                           SilcUInt32 session_id);
 
+/****f* silcclient/SilcClientAPI/silc_client_attribute_add
+ *
+ * SYNOPSIS
+ *
+ *    SilcAttributePayload
+ *    silc_client_attribute_add(SilcClient client,
+ *                              SilcClientConnection conn,
+ *                              SilcAttribute attribute,
+ *                              void *object,
+ *                              SilcUInt32 object_size);
+ *
+ * DESCRIPTION
+ *
+ *    Add new Requsted Attribute for WHOIS command to the client library.
+ *    The `attribute' object indicated by `object' is added and allocated
+ *    SilcAttributePayload is returned.  The `object' must be of correct
+ *    type and of correct size.  See the SilcAttribute for object types
+ *    for different attributes.  You may also get all added attributes
+ *    from the client with silc_client_attributes_get function.
+ *
+ *    Requested Attributes are different personal information about the
+ *    user, status information and other information which other users
+ *    may query with WHOIS command.  Application may set these so that
+ *    if someone sends WHOIS query these attributes will be replied back
+ *    to the sender.  The library always puts the public key to the
+ *    Requested Attributes, but if application wishes to add additional
+ *    public keys (or certificates) it can be done with this interface.
+ *    Library also always computes digital signature of the attributes
+ *    automatically, so application does not need to do that.
+ *
+ ***/
+SilcAttributePayload silc_client_attribute_add(SilcClient client,
+                                              SilcClientConnection conn,
+                                              SilcAttribute attribute,
+                                              void *object,
+                                              SilcUInt32 object_size);
+
+/****f* silcclient/SilcClientAPI/silc_client_attribute_del
+ *
+ * SYNOPSIS
+ *
+ *    bool silc_client_attribute_del(SilcClient client,
+ *                                   SilcClientConnection conn,
+ *                                   SilcAttributePayload attr);
+ *
+ * DESCRIPTION
+ *
+ *    Delete the Requested Attribute indicated by `attribute' from the
+ *    client.  You may get all added attributes with the function
+ *    silc_client_attributes_get.  Returns TRUE if the attribute was
+ *    found and deleted.
+ *
+ ***/
+bool silc_client_attribute_del(SilcClient client,
+                              SilcClientConnection conn,
+                              SilcAttributePayload attr);
+
+/****f* silcclient/SilcClientAPI/silc_client_attributes_get
+ *
+ * SYNOPSIS
+ *
+ *    const SilcHashTable
+ *    silc_client_attributes_get(SilcClient client,
+ *                               SilcClientConnection conn);
+ *
+ * DESCRIPTION
+ *
+ *    Returns pointer to the SilcHashTable which includes all the added
+ *    Requested Attributes.  The caller must not free the hash table.
+ *    The caller may use SilcHashTableList and silc_hash_table_list to
+ *    traverse the table.  Each entry in the hash table is one added
+ *    SilcAttributePayload.  It is possible to delete a attribute
+ *    payload while traversing the table.
+ *
+ ***/
+const SilcHashTable silc_client_attributes_get(SilcClient client,
+                                              SilcClientConnection conn);
+
+/****f* silcclient/SilcClientAPI/silc_client_attributes_request
+ *
+ * SYNOPSIS
+ *
+ *    SilcBuffer silc_client_attributes_request(SilcAttribute attribute, ...);
+ *
+ * DESCRIPTION
+ *
+ *    Constructs a Requested Attributes buffer. If the `attribute' is zero (0)
+ *    then all attributes are requested.  Alternatively, `attribute' and
+ *    all variable arguments can each be requested attribute.  In this case
+ *    the last must be set to zero (0) to complete the variable list of
+ *    requested attributes.  See SilcAttribute for all attributes.
+ *    You can give the returned buffer as argument to for example
+ *    silc_client_get_client_by_id_resolve function.
+ *
+ ***/
+SilcBuffer silc_client_attributes_request(SilcAttribute attribute, ...);
+
 #include "client.h"
 #include "command.h"
 #include "command_reply.h"