keepass 0.10.6

KeePass .kdbx database file parser
Documentation 
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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162

//! Custom serde (de)serializers for specific data formats in KeePass XML flavor.

/// base64-encoded binary data
pub mod cs_base64 {
    use base64::{engine::general_purpose as base64_engine, Engine as _};
    use serde::{Deserialize, Deserializer, Serializer};

    pub fn serialize<S>(data: &[u8], s: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        s.serialize_str(&base64_engine::STANDARD.encode(data))
    }

    pub fn deserialize<'de, D>(d: D) -> Result<Vec<u8>, D::Error>
    where
        D: Deserializer<'de>,
    {
        let s = String::deserialize(d)?;

        base64_engine::STANDARD
            .decode(s)
            .map_err(serde::de::Error::custom)
    }
}

/// "True"/"False" boolean strings
pub mod cs_bool {

    use serde::{Deserialize, Deserializer, Serializer};

    pub fn serialize<S>(data: &bool, s: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        s.serialize_str(if *data { "True" } else { "False" })
    }

    pub fn deserialize<'de, D>(d: D) -> Result<bool, D::Error>
    where
        D: Deserializer<'de>,
    {
        let s = String::deserialize(d)?;

        match s.as_str().to_lowercase().as_str() {
            "true" | "1" => Ok(true),
            "false" | "0" => Ok(false),
            _ => Err(serde::de::Error::custom(format!("Invalid boolean string: {}", s))),
        }
    }
}

/// Optional "True"/"False" boolean strings
pub mod cs_opt_bool {
    use serde::{Deserialize, Deserializer, Serializer};

    pub fn serialize<S>(data: &Option<bool>, s: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        match data {
            Some(b) => s.serialize_str(if *b { "True" } else { "False" }),
            None => s.serialize_none(),
        }
    }

    pub fn deserialize<'de, D>(d: D) -> Result<Option<bool>, D::Error>
    where
        D: Deserializer<'de>,
    {
        let opt = Option::<String>::deserialize(d)?;

        match opt {
            Some(s) => {
                if s.trim().is_empty() {
                    Ok(None)
                } else {
                    match s.to_lowercase().as_str() {
                        "true" | "1" => Ok(Some(true)),
                        "false" | "0" => Ok(Some(false)),
                        "null" => Ok(None),
                        _ => Err(serde::de::Error::custom(format!("Invalid boolean string: {}", s))),
                    }
                }
            }
            None => Ok(None),
        }
    }
}

/// Optional value that implements FromStr that may be missing empty, e.g. numbers
pub mod cs_opt_fromstr {
    use std::str::FromStr;

    use serde::{Deserialize, Deserializer, Serialize, Serializer};

    pub fn serialize<S, T>(data: &Option<T>, s: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
        T: Serialize,
    {
        match data {
            Some(v) => s.serialize_some(v),
            None => s.serialize_str(""), // this will make quick-xml serialize as <Tag></Tag>
        }
    }

    pub fn deserialize<'de, D, T>(d: D) -> Result<Option<T>, D::Error>
    where
        D: Deserializer<'de>,
        T: FromStr,
        <T as FromStr>::Err: std::fmt::Display,
    {
        if let Some(s) = Option::<String>::deserialize(d)? {
            if s.trim().is_empty() {
                Ok(None)
            } else {
                let n: T = s
                    .parse()
                    .map_err(|e| serde::de::Error::custom(format!("error parsing: {}", e)))?;
                Ok(Some(n))
            }
        } else {
            Ok(None)
        }
    }
}

/// Optional stringly value that may be missing or empty
/// (e.g. `<Name></Name>` or `<Name/>`)
pub mod cs_opt_string {
    use serde::{Deserialize, Deserializer, Serialize, Serializer};

    pub fn serialize<S, T>(data: &Option<T>, s: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
        T: Serialize,
    {
        match data {
            Some(v) => s.serialize_some(v),
            None => s.serialize_str(""), // this will make quick-xml serialize as <Tag></Tag>
        }
    }

    pub fn deserialize<'de, D, T>(d: D) -> Result<Option<T>, D::Error>
    where
        D: Deserializer<'de>,
        T: Deserialize<'de>,
    {
        if let Some(s) = Option::<String>::deserialize(d)? {
            if s.trim().is_empty() {
                Ok(None)
            } else {
                let v = T::deserialize(serde::de::IntoDeserializer::<D::Error>::into_deserializer(s))
                    .map_err(serde::de::Error::custom)?;
                Ok(Some(v))
            }
        } else {
            Ok(None)
        }
    }
}