libssh.errors source code

1 module libssh.errors;
2 
3 import std.format;
4 
5 import libssh.c_bindings.libssh;
6 import libssh.c_bindings.sftp;
7 import libssh.c_bindings.server;
8 import libssh.utils;
9 
10 enum SSHError : int {
11     NoError = ssh_error_types_e.SSH_NO_ERROR,
12     RequestDenied = ssh_error_types_e.SSH_REQUEST_DENIED,
13     Fatal = ssh_error_types_e.SSH_FATAL,
14     EIntr = ssh_error_types_e.SSH_EINTR,
15 
16     Error = SSH_ERROR,
17     Again = SSH_AGAIN,
18     EOF = SSH_EOF
19 }
20 
21 enum SFTPError {
22     Ok =  SSH_FX_OK,
23     Eof =  SSH_FX_EOF,
24     NoSuchFile =  SSH_FX_NO_SUCH_FILE,
25     PermissionDenied =  SSH_FX_PERMISSION_DENIED,
26     Failure =  SSH_FX_FAILURE,
27     BadMessage =  SSH_FX_BAD_MESSAGE,
28     NoConnection =  SSH_FX_NO_CONNECTION,
29     ConnectionLost =  SSH_FX_CONNECTION_LOST,
30     OpUnsupported =  SSH_FX_OP_UNSUPPORTED,
31     InvalidHandle =  SSH_FX_INVALID_HANDLE,
32     NoSuchPath =  SSH_FX_NO_SUCH_PATH,
33     FileAlreadyExists =  SSH_FX_FILE_ALREADY_EXISTS,
34     WriteProtect =  SSH_FX_WRITE_PROTECT,
35     NoMedia =  SSH_FX_NO_MEDIA,
36 
37     Unknown
38 }
39 
40 class SSHException : Exception {
41     @property SSHError errorCode() {
42         return cast(SSHError) this._errorCode;
43     }
44 
45     this(string errorMessage) {
46         this._errorCode = SSHError.Fatal;
47         super(errorMessage);
48     }
49 
50     this(int errorCode) {
51         this._errorCode = errorCode;
52         super(format("SSH error with code %d", errorCode));
53     }
54 
55     this(int errorCode, string errorMessage) {
56         this._errorCode = errorCode;
57         super(errorMessage);
58     }
59 
60     package this(ssh_session session) {
61         this._errorCode = ssh_get_error_code(session);
62         super(copyFromStrZ(ssh_get_error(session)));
63     }
64 
65     package this(ssh_bind bind) {
66         this._errorCode = ssh_get_error_code(bind);
67         super(copyFromStrZ(ssh_get_error(bind)));
68     }
69 
70     private int _errorCode;
71 }
72 
73 class SFTPException : SSHException {
74     @property sftpErrorCode() {
75         return cast(SFTPError) this._sftpErrorCode;
76     }
77 
78     this(int errorCode, ssh_session session) {
79         super(session);
80         _sftpErrorCode = errorCode;
81     }
82 
83     private int _sftpErrorCode;
84 }
85 
86 
87 package {
88     void checkForRCError(T, CtorArgs...)(T rc, CtorArgs args) {
89         if (rc != SSH_OK) {
90             throw new SSHException(args);
91         }
92     }
93 
94     void checkForNullError(T, CtorArgs...)(T rc, CtorArgs args) {
95         if (rc is null) {
96             throw new SSHException(args);
97         }
98     }
99 }