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for the web interfaces, ensure the effective configured http paths end in a slash to prevent 404's and/or errors accessing the web interfaces

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The default paths for the web interfaces, such as /admin/, /account/, /webmail/
and /webapi/ end with a slash. They should end with a slash because we use the
path when restricting cookies to just that web interface. You could configure
paths not ending with a slash, but due to using http.StripPrefix, and our
handler, some of those requests may not work properly.

We now warn if configured paths don't end with a trailing slash when parsing
the config file. We normally error out when such things happen, but users
probably have paths without trailing slashes configured, and we don't want to
break them on a future upgrade. We now use an effective path that includes the
trailing slash.

We would always redirect requests to the configured paths but without trailing
slash to the path with trailing slash, and that stays.

For issue #325 by odama626.
This commit is contained in:
Mechiel Lukkien
2025-03-29 21:48:56 +01:00
parent 3a3a11560e
commit 3e128d744e
4 changed files with 44 additions and 25 deletions
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18
http/web.go
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@ -536,7 +536,7 @@ func redirectToTrailingSlash(srv *serve, hostMatch func(dns.IPDomain) bool, name
handler := mox.SafeHeaders(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, path, http.StatusSeeOther)
}))
srv.ServiceHandle(name, hostMatch, path[:len(path)-1], handler)
srv.ServiceHandle(name, hostMatch, strings.TrimRight(path, "/"), handler)
}
}
@ -656,7 +656,7 @@ func portServes(name string, l config.Listener) map[int]*serve {
path = l.AccountHTTP.Path
}
srv := ensureServe(false, port, "account-http at "+path, true)
handler := mox.SafeHeaders(http.StripPrefix(path[:len(path)-1], http.HandlerFunc(webaccount.Handler(path, l.AccountHTTP.Forwarded))))
handler := mox.SafeHeaders(http.StripPrefix(strings.TrimRight(path, "/"), http.HandlerFunc(webaccount.Handler(path, l.AccountHTTP.Forwarded))))
srv.ServiceHandle("account", accountHostMatch, path, handler)
redirectToTrailingSlash(srv, accountHostMatch, "account", path)
ensureACMEHTTP01(srv)
@ -668,7 +668,7 @@ func portServes(name string, l config.Listener) map[int]*serve {
path = l.AccountHTTPS.Path
}
srv := ensureServe(true, port, "account-https at "+path, true)
handler := mox.SafeHeaders(http.StripPrefix(path[:len(path)-1], http.HandlerFunc(webaccount.Handler(path, l.AccountHTTPS.Forwarded))))
handler := mox.SafeHeaders(http.StripPrefix(strings.TrimRight(path, "/"), http.HandlerFunc(webaccount.Handler(path, l.AccountHTTPS.Forwarded))))
srv.ServiceHandle("account", accountHostMatch, path, handler)
redirectToTrailingSlash(srv, accountHostMatch, "account", path)
}
@ -680,7 +680,7 @@ func portServes(name string, l config.Listener) map[int]*serve {
path = l.AdminHTTP.Path
}
srv := ensureServe(false, port, "admin-http at "+path, true)
handler := mox.SafeHeaders(http.StripPrefix(path[:len(path)-1], http.HandlerFunc(webadmin.Handler(path, l.AdminHTTP.Forwarded))))
handler := mox.SafeHeaders(http.StripPrefix(strings.TrimRight(path, "/"), http.HandlerFunc(webadmin.Handler(path, l.AdminHTTP.Forwarded))))
srv.ServiceHandle("admin", listenerHostMatch, path, handler)
redirectToTrailingSlash(srv, listenerHostMatch, "admin", path)
ensureACMEHTTP01(srv)
@ -692,7 +692,7 @@ func portServes(name string, l config.Listener) map[int]*serve {
path = l.AdminHTTPS.Path
}
srv := ensureServe(true, port, "admin-https at "+path, true)
handler := mox.SafeHeaders(http.StripPrefix(path[:len(path)-1], http.HandlerFunc(webadmin.Handler(path, l.AdminHTTPS.Forwarded))))
handler := mox.SafeHeaders(http.StripPrefix(strings.TrimRight(path, "/"), http.HandlerFunc(webadmin.Handler(path, l.AdminHTTPS.Forwarded))))
srv.ServiceHandle("admin", listenerHostMatch, path, handler)
redirectToTrailingSlash(srv, listenerHostMatch, "admin", path)
}
@ -709,7 +709,7 @@ func portServes(name string, l config.Listener) map[int]*serve {
path = l.WebAPIHTTP.Path
}
srv := ensureServe(false, port, "webapi-http at "+path, true)
handler := mox.SafeHeaders(http.StripPrefix(path[:len(path)-1], webapisrv.NewServer(maxMsgSize, path, l.WebAPIHTTP.Forwarded)))
handler := mox.SafeHeaders(http.StripPrefix(strings.TrimRight(path, "/"), webapisrv.NewServer(maxMsgSize, path, l.WebAPIHTTP.Forwarded)))
srv.ServiceHandle("webapi", accountHostMatch, path, handler)
redirectToTrailingSlash(srv, accountHostMatch, "webapi", path)
ensureACMEHTTP01(srv)
@ -721,7 +721,7 @@ func portServes(name string, l config.Listener) map[int]*serve {
path = l.WebAPIHTTPS.Path
}
srv := ensureServe(true, port, "webapi-https at "+path, true)
handler := mox.SafeHeaders(http.StripPrefix(path[:len(path)-1], webapisrv.NewServer(maxMsgSize, path, l.WebAPIHTTPS.Forwarded)))
handler := mox.SafeHeaders(http.StripPrefix(strings.TrimRight(path, "/"), webapisrv.NewServer(maxMsgSize, path, l.WebAPIHTTPS.Forwarded)))
srv.ServiceHandle("webapi", accountHostMatch, path, handler)
redirectToTrailingSlash(srv, accountHostMatch, "webapi", path)
}
@ -740,7 +740,7 @@ func portServes(name string, l config.Listener) map[int]*serve {
accountPath = l.AccountHTTP.Path
}
}
handler := http.StripPrefix(path[:len(path)-1], http.HandlerFunc(webmail.Handler(maxMsgSize, path, l.WebmailHTTP.Forwarded, accountPath)))
handler := http.StripPrefix(strings.TrimRight(path, "/"), http.HandlerFunc(webmail.Handler(maxMsgSize, path, l.WebmailHTTP.Forwarded, accountPath)))
srv.ServiceHandle("webmail", accountHostMatch, path, handler)
redirectToTrailingSlash(srv, accountHostMatch, "webmail", path)
ensureACMEHTTP01(srv)
@ -759,7 +759,7 @@ func portServes(name string, l config.Listener) map[int]*serve {
accountPath = l.AccountHTTPS.Path
}
}
handler := http.StripPrefix(path[:len(path)-1], http.HandlerFunc(webmail.Handler(maxMsgSize, path, l.WebmailHTTPS.Forwarded, accountPath)))
handler := http.StripPrefix(strings.TrimRight(path, "/"), http.HandlerFunc(webmail.Handler(maxMsgSize, path, l.WebmailHTTPS.Forwarded, accountPath)))
srv.ServiceHandle("webmail", accountHostMatch, path, handler)
redirectToTrailingSlash(srv, accountHostMatch, "webmail", path)
}