aboutsummaryrefslogtreecommitdiff
path: root/csharp/src/Google.Protobuf/InvalidProtocolBufferException.cs
blob: 0fbc53063168469d588e550cfe1911cb15e779b5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
#region Copyright notice and license
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion

using System;
using System.IO;

namespace Google.Protobuf
{
    /// <summary>
    /// Thrown when a protocol message being parsed is invalid in some way,
    /// e.g. it contains a malformed varint or a negative byte length.
    /// </summary>
    public sealed class InvalidProtocolBufferException : IOException
    {
        internal InvalidProtocolBufferException(string message)
            : base(message)
        {
        }

        internal InvalidProtocolBufferException(string message, Exception innerException)
            : base(message, innerException)
        {
        }

        internal static InvalidProtocolBufferException MoreDataAvailable()
        {
            return new InvalidProtocolBufferException(
                "Completed reading a message while more data was available in the stream.");
        }

        internal static InvalidProtocolBufferException TruncatedMessage()
        {
            return new InvalidProtocolBufferException(
                "While parsing a protocol message, the input ended unexpectedly " +
                "in the middle of a field.  This could mean either that the " +
                "input has been truncated or that an embedded message " +
                "misreported its own length.");
        }

        internal static InvalidProtocolBufferException NegativeSize()
        {
            return new InvalidProtocolBufferException(
                "CodedInputStream encountered an embedded string or message " +
                "which claimed to have negative size.");
        }

        internal static InvalidProtocolBufferException MalformedVarint()
        {
            return new InvalidProtocolBufferException(
                "CodedInputStream encountered a malformed varint.");
        }

        /// <summary>
        /// Creates an exception for an error condition of an invalid tag being encountered.
        /// </summary>
        internal static InvalidProtocolBufferException InvalidTag()
        {
            return new InvalidProtocolBufferException(
                "Protocol message contained an invalid tag (zero).");
        }

        internal static InvalidProtocolBufferException InvalidBase64(Exception innerException)
        {
            return new InvalidProtocolBufferException("Invalid base64 data", innerException);
        }

        internal static InvalidProtocolBufferException InvalidEndTag()
        {
            return new InvalidProtocolBufferException(
                "Protocol message end-group tag did not match expected tag.");
        }

        internal static InvalidProtocolBufferException RecursionLimitExceeded()
        {
            return new InvalidProtocolBufferException(
                "Protocol message had too many levels of nesting.  May be malicious.  " +
                "Use CodedInputStream.SetRecursionLimit() to increase the depth limit.");
        }

        internal static InvalidProtocolBufferException JsonRecursionLimitExceeded()
        {
            return new InvalidProtocolBufferException(
                "Protocol message had too many levels of nesting.  May be malicious.  " +
                "Use JsonParser.Settings to increase the depth limit.");
        }

        internal static InvalidProtocolBufferException SizeLimitExceeded()
        {
            return new InvalidProtocolBufferException(
                "Protocol message was too large.  May be malicious.  " +
                "Use CodedInputStream.SetSizeLimit() to increase the size limit.");
        }

        internal static InvalidProtocolBufferException InvalidMessageStreamTag()
        {
            return new InvalidProtocolBufferException(
                "Stream of protocol messages had invalid tag. Expected tag is length-delimited field 1.");
        }
    }
}