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Simplify authentication choice code. (#169)

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* Simplify authentication choice code.

Should be a lot easier to read and understand now.
This commit is contained in:
Martin 2024-01-10 14:53:36 +01:00 committed by GitHub
parent 794ed98f9f
commit 5fdcf18a81
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 31 additions and 58 deletions
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89
xmpp.go
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@ -406,64 +406,37 @@ func (c *Client) init(o *Options) error {
tlsConnOK = true
}
mechanism = ""
if o.Mechanism == "" {
for _, m := range f.Mechanisms.Mechanism {
switch m {
case "SCRAM-SHA-512-PLUS":
if tlsConnOK {
mechanism = m
}
case "SCRAM-SHA-256-PLUS":
if mechanism != "SCRAM-SHA-512-PLUS" && tlsConnOK {
mechanism = m
}
case "SCRAM-SHA-1-PLUS":
if mechanism != "SCRAM-SHA-512-PLUS" &&
mechanism != "SCRAM-SHA-256-PLUS" &&
tlsConnOK {
mechanism = m
}
case "SCRAM-SHA-512":
if mechanism != "SCRAM-SHA-512-PLUS" &&
mechanism != "SCRAM-SHA-256-PLUS" &&
mechanism != "SCRAM-SHA-1-PLUS" {
mechanism = m
}
case "SCRAM-SHA-256":
if mechanism != "SCRAM-SHA-512-PLUS" &&
mechanism != "SCRAM-SHA-256-PLUS" &&
mechanism != "SCRAM-SHA-1-PLUS" &&
mechanism != "SCRAM-SHA-512" {
mechanism = m
}
case "SCRAM-SHA-1":
if mechanism != "SCRAM-SHA-512-PLUS" &&
mechanism != "SCRAM-SHA-256-PLUS" &&
mechanism != "SCRAM-SHA-1-PLUS" &&
mechanism != "SCRAM-SHA-512" &&
mechanism != "SCRAM-SHA-256" {
mechanism = m
}
case "X-OAUTH2":
if mechanism == "" {
mechanism = m
}
case "PLAIN":
if mechanism == "" {
mechanism = m
}
case "DIGEST-MD5":
if mechanism == "" {
mechanism = m
}
}
}
} else {
for _, m := range f.Mechanisms.Mechanism {
if m == o.Mechanism {
mechanism = o.Mechanism
}
}
switch {
case slices.Contains(f.Mechanisms.Mechanism,
o.Mechanism) && o.Mechanism != "":
mechanism = o.Mechanism
case slices.Contains(f.Mechanisms.Mechanism,
"SCRAM-SHA-512-PLUS") && tlsConnOK:
mechanism = "SCRAM-SHA-512-PLUS"
case slices.Contains(f.Mechanisms.Mechanism,
"SCRAM-SHA-256-PLUS") && tlsConnOK:
mechanism = "SCRAM-SHA-256-PLUS"
case slices.Contains(f.Mechanisms.Mechanism,
"SCRAM-SHA-1-PLUS") && tlsConnOK:
mechanism = "SCRAM-SHA-1-PLUS"
case slices.Contains(f.Mechanisms.Mechanism,
"SCRAM-SHA-512"):
mechanism = "SCRAM-SHA-512"
case slices.Contains(f.Mechanisms.Mechanism,
"SCRAM-SHA-256"):
mechanism = "SCRAM-SHA-256"
case slices.Contains(f.Mechanisms.Mechanism,
"SCRAM-SHA-1"):
mechanism = "SCRAM-SHA-1"
case slices.Contains(f.Mechanisms.Mechanism,
"X-OAUTH2"):
mechanism = "X-OAUTH2"
case slices.Contains(f.Mechanisms.Mechanism,
"PLAIN") && tlsConnOK:
mechanism = "PLAIN"
case slices.Contains(f.Mechanisms.Mechanism,
"DIGEST-MD5"):
mechanism = "DIGEST-MD5"
}
if strings.HasPrefix(mechanism, "SCRAM-SHA") {
if strings.HasSuffix(mechanism, "PLUS") {