canic-core 0.26.8

Canic — a canister orchestration and management toolkit for the Internet Computer
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

use crate::{
    InternalError, InternalErrorClass, InternalErrorOrigin,
    dto::error::{Error, ErrorCode},
};

fn registry_policy_error_code(message: &str) -> Option<ErrorCode> {
    if message.contains("already registered to") {
        return Some(ErrorCode::PolicyRoleAlreadyRegistered);
    }
    if message.contains("already registered under parent") {
        return Some(ErrorCode::PolicySingletonAlreadyRegisteredUnderParent);
    }
    if message.contains("must be created by a singleton parent with scaling config") {
        return Some(ErrorCode::PolicyReplicaRequiresSingletonWithScaling);
    }
    if message.contains("must be created by a singleton parent with sharding config") {
        return Some(ErrorCode::PolicyShardRequiresSingletonWithSharding);
    }
    if message.contains("must be created by a singleton parent") {
        return Some(ErrorCode::PolicyTenantRequiresSingletonParent);
    }

    None
}

fn internal_error_to_public(err: &InternalError) -> Error {
    if let Some(public) = err.public_error() {
        return public.clone();
    }

    let message = err.to_string();

    match err.class() {
        InternalErrorClass::Access => Error::unauthorized(message),

        InternalErrorClass::Domain => match err.origin() {
            InternalErrorOrigin::Config => Error::invalid(message),
            _ => {
                if let Some(code) = registry_policy_error_code(&message) {
                    Error::policy(code, message)
                } else {
                    Error::conflict(message)
                }
            }
        },

        InternalErrorClass::Invariant => Error::invariant(message),

        InternalErrorClass::Infra | InternalErrorClass::Ops | InternalErrorClass::Workflow => {
            Error::internal(message)
        }
    }
}

impl From<&InternalError> for Error {
    fn from(err: &InternalError) -> Self {
        internal_error_to_public(err)
    }
}

impl From<InternalError> for Error {
    fn from(err: InternalError) -> Self {
        internal_error_to_public(&err)
    }
}

///
/// TESTS
///

#[cfg(test)]
mod tests {
    use super::*;
    use crate::{
        access::AccessError,
        cdk::types::Principal,
        domain::policy::topology::{TopologyPolicyError, registry::RegistryPolicyError},
        ids::CanisterRole,
    };

    fn p(id: u8) -> Principal {
        Principal::from_slice(&[id; 29])
    }

    #[test]
    fn internal_error_mapping_matches_class_contract() {
        let access: Error = InternalError::from(AccessError::Denied("denied".to_string())).into();
        assert_eq!(access.code, ErrorCode::Unauthorized);

        let domain_config: Error =
            InternalError::domain(InternalErrorOrigin::Config, "bad config").into();
        assert_eq!(domain_config.code, ErrorCode::InvalidInput);

        let domain_other: Error =
            InternalError::domain(InternalErrorOrigin::Domain, "conflict").into();
        assert_eq!(domain_other.code, ErrorCode::Conflict);

        let invariant: Error =
            InternalError::invariant(InternalErrorOrigin::Ops, "broken invariant").into();
        assert_eq!(invariant.code, ErrorCode::InvariantViolation);

        let infra: Error = InternalError::infra(InternalErrorOrigin::Infra, "infra fail").into();
        assert_eq!(infra.code, ErrorCode::Internal);

        let ops: Error = InternalError::ops(InternalErrorOrigin::Ops, "ops fail").into();
        assert_eq!(ops.code, ErrorCode::Internal);

        let workflow: Error =
            InternalError::workflow(InternalErrorOrigin::Workflow, "workflow fail").into();
        assert_eq!(workflow.code, ErrorCode::Internal);
    }

    #[test]
    fn public_error_is_preserved_without_remap() {
        let public = Error::not_found("missing");
        let remapped: Error = InternalError::public(public.clone()).into();
        assert_eq!(remapped, public);
    }

    #[test]
    fn registry_policy_errors_map_to_stable_public_policy_codes() {
        let err = RegistryPolicyError::RoleAlreadyRegistered {
            role: CanisterRole::new("app"),
            pid: p(7),
        };
        let internal: InternalError = TopologyPolicyError::from(err).into();
        let public: Error = internal.into();
        assert_eq!(public.code, ErrorCode::PolicyRoleAlreadyRegistered);
    }
}