update dynamic LoginName

This commit is contained in:
2026-04-17 14:59:43 -05:00
parent 081a0fad4b
commit 95baab8e06
4 changed files with 128 additions and 31 deletions

View File

@@ -7,7 +7,16 @@ RUN xcaddy build ${CADDY_VERSION} \
--with github.com/caddy-dns/cloudflare \
--with github.com/caddyserver/replace-response
# Autodiscover Handler in Go bauen (Go ist im Builder-Image bereits verfügbar)
COPY autodiscover-handler.go /src/autodiscover-handler.go
WORKDIR /src
RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o /usr/bin/autodiscover-handler autodiscover-handler.go
FROM caddy:${CADDY_VERSION}
COPY --from=builder /usr/bin/caddy /usr/bin/caddy
RUN mkdir -p /var/log/caddy
COPY --from=builder /usr/bin/autodiscover-handler /usr/local/bin/autodiscover-handler
COPY start.sh /usr/local/bin/start.sh
RUN chmod +x /usr/local/bin/start.sh /usr/local/bin/autodiscover-handler \
&& mkdir -p /var/log/caddy
CMD ["/usr/local/bin/start.sh"]

View File

@@ -0,0 +1,109 @@
package main
import (
"fmt"
"io"
"log"
"net/http"
"regexp"
"strings"
)
const port = "8280"
var emailRegex = regexp.MustCompile(`(?i)<EMailAddress>([^<]+)</EMailAddress>`)
func main() {
http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
fmt.Fprint(w, "OK")
})
http.HandleFunc("/autodiscover/autodiscover.xml", handleAutodiscover)
// Outlook sendet manchmal mit Großbuchstaben
http.HandleFunc("/Autodiscover/Autodiscover.xml", handleAutodiscover)
http.HandleFunc("/AutoDiscover/AutoDiscover.xml", handleAutodiscover)
log.Printf("[autodiscover] Listening on port %s", port)
if err := http.ListenAndServe(":"+port, nil); err != nil {
log.Fatal(err)
}
}
func handleAutodiscover(w http.ResponseWriter, r *http.Request) {
var email string
if r.Method == http.MethodPost {
body, err := io.ReadAll(r.Body)
if err == nil {
if match := emailRegex.FindStringSubmatch(string(body)); len(match) > 1 {
email = strings.TrimSpace(match[1])
}
}
r.Body.Close()
}
var domain string
if email != "" {
parts := strings.SplitN(email, "@", 2)
if len(parts) == 2 {
domain = parts[1]
}
}
if domain == "" {
domain = extractDomainFromHost(r.Host)
}
log.Printf("[autodiscover] %s from %s - email=%q domain=%s", r.Method, r.RemoteAddr, email, domain)
w.Header().Set("Content-Type", "application/xml")
w.WriteHeader(http.StatusOK)
fmt.Fprint(w, buildResponse(domain, email))
}
func extractDomainFromHost(host string) string {
// Strip port
if idx := strings.Index(host, ":"); idx >= 0 {
host = host[:idx]
}
parts := strings.Split(host, ".")
if len(parts) >= 3 && strings.EqualFold(parts[0], "autodiscover") {
return strings.Join(parts[1:], ".")
}
if len(parts) >= 2 {
return strings.Join(parts[len(parts)-2:], ".")
}
return host
}
func buildResponse(domain, loginName string) string {
return fmt.Sprintf(`<?xml version="1.0" encoding="utf-8"?>
<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
<Response xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a">
<Account>
<AccountType>email</AccountType>
<Action>settings</Action>
<Protocol>
<Type>IMAP</Type>
<Server>imap.%s</Server>
<Port>993</Port>
<DomainRequired>off</DomainRequired>
<LoginName>%s</LoginName>
<SPA>off</SPA>
<SSL>on</SSL>
<AuthRequired>on</AuthRequired>
</Protocol>
<Protocol>
<Type>SMTP</Type>
<Server>smtp.%s</Server>
<Port>465</Port>
<DomainRequired>off</DomainRequired>
<LoginName>%s</LoginName>
<SPA>off</SPA>
<SSL>on</SSL>
<AuthRequired>on</AuthRequired>
</Protocol>
</Account>
</Response>
</Autodiscover>`, domain, loginName, domain, loginName)
}

8
caddy/start.sh Normal file
View File

@@ -0,0 +1,8 @@
#!/bin/sh
set -e
# Autodiscover handler im Hintergrund starten
/usr/local/bin/autodiscover-handler &
# Caddy im Vordergrund
exec caddy run --config /etc/caddy/Caddyfile --adapter caddyfile

View File

@@ -78,36 +78,7 @@ OUTPUT="${OUTPUT}(email_settings) {\n"
# --- 1. Outlook Classic Autodiscover (POST + GET XML) ---
OUTPUT="${OUTPUT} # Outlook Autodiscover (XML) - POST und GET\n"
OUTPUT="${OUTPUT} route /autodiscover/autodiscover.xml {\n"
OUTPUT="${OUTPUT} header Content-Type \"application/xml\"\n"
OUTPUT="${OUTPUT} respond \`<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
OUTPUT="${OUTPUT}<Autodiscover xmlns=\"http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006\">\n"
OUTPUT="${OUTPUT} <Response xmlns=\"http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a\">\n"
OUTPUT="${OUTPUT} <Account>\n"
OUTPUT="${OUTPUT} <AccountType>email</AccountType>\n"
OUTPUT="${OUTPUT} <Action>settings</Action>\n"
OUTPUT="${OUTPUT} <Protocol>\n"
OUTPUT="${OUTPUT} <Type>IMAP</Type>\n"
OUTPUT="${OUTPUT} <Server>imap.{labels.1}.{labels.0}</Server>\n"
OUTPUT="${OUTPUT} <Port>993</Port>\n"
OUTPUT="${OUTPUT} <DomainRequired>off</DomainRequired>\n"
OUTPUT="${OUTPUT} <LoginName></LoginName>\n"
OUTPUT="${OUTPUT} <SPA>off</SPA>\n"
OUTPUT="${OUTPUT} <SSL>on</SSL>\n"
OUTPUT="${OUTPUT} <AuthRequired>on</AuthRequired>\n"
OUTPUT="${OUTPUT} </Protocol>\n"
OUTPUT="${OUTPUT} <Protocol>\n"
OUTPUT="${OUTPUT} <Type>SMTP</Type>\n"
OUTPUT="${OUTPUT} <Server>smtp.{labels.1}.{labels.0}</Server>\n"
OUTPUT="${OUTPUT} <Port>465</Port>\n"
OUTPUT="${OUTPUT} <DomainRequired>off</DomainRequired>\n"
OUTPUT="${OUTPUT} <LoginName></LoginName>\n"
OUTPUT="${OUTPUT} <SPA>off</SPA>\n"
OUTPUT="${OUTPUT} <SSL>on</SSL>\n"
OUTPUT="${OUTPUT} <AuthRequired>on</AuthRequired>\n"
OUTPUT="${OUTPUT} </Protocol>\n"
OUTPUT="${OUTPUT} </Account>\n"
OUTPUT="${OUTPUT} </Response>\n"
OUTPUT="${OUTPUT}</Autodiscover>\` 200\n"
OUTPUT="${OUTPUT} reverse_proxy localhost:8280\n"
OUTPUT="${OUTPUT} }\n"
OUTPUT="${OUTPUT}\n"