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
|
# This file is a part of Julia. License is MIT: https://julialang.org/license
using LibGit2: AbstractCredential, UserPasswordCredential, SSHCredential,
CachedCredentials, CredentialPayload
using Base: something
const DEFAULT_PAYLOAD = CredentialPayload(allow_ssh_agent=false, allow_git_helpers=false)
"""
Emulates the LibGit2 credential loop to allows testing of the credential_callback function
without having to authenticate against a real server.
"""
function credential_loop(
valid_credential::AbstractCredential,
url::AbstractString,
user::Union{AbstractString, Nothing},
allowed_types::UInt32,
payload::CredentialPayload;
shred::Bool=true)
cb = LibGit2.credentials_cb()
libgitcred_ptr_ptr = Ref{Ptr{Cvoid}}(C_NULL)
# Number of times credentials were authenticated against. With the real LibGit2
# credential loop this would be how many times we sent credentials to the remote.
num_authentications = 0
# Emulate how LibGit2 uses the credential callback by repeatedly calling the function
# until we find valid credentials or an exception is raised.
err = Cint(0)
while err == 0
err = ccall(cb, Cint, (Ptr{Ptr{Cvoid}}, Cstring, Cstring, Cuint, Any),
libgitcred_ptr_ptr, url, something(user, C_NULL),
allowed_types, payload)
num_authentications += 1
# Check if the callback provided us with valid credentials
if payload.credential !== nothing && payload.credential == valid_credential
LibGit2.approve(payload, shred=shred)
break
end
if num_authentications > 50
error("Credential callback seems to be caught in an infinite loop")
end
end
# Note: LibGit2.GitError(0) will not work if an error message has been set.
git_error = if err == 0
LibGit2.GitError(LibGit2.Error.None, LibGit2.Error.GIT_OK, "No errors")
else
LibGit2.GitError(err)
end
# Reject and shred the credential when an authentication error occurs
if git_error.code == LibGit2.Error.EAUTH
LibGit2.reject(payload, shred=shred)
end
return git_error, num_authentications, payload
end
function credential_loop(
valid_credential::UserPasswordCredential,
url::AbstractString,
user::Union{AbstractString, Nothing}=nothing,
payload::CredentialPayload=DEFAULT_PAYLOAD;
shred::Bool=true)
credential_loop(valid_credential, url, user, 0x000001, payload, shred=shred)
end
function credential_loop(
valid_credential::SSHCredential,
url::AbstractString,
user::Union{AbstractString, Nothing}=nothing,
payload::CredentialPayload=DEFAULT_PAYLOAD;
shred::Bool=true)
credential_loop(valid_credential, url, user, 0x000046, payload, shred=shred)
end
|
