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riccardom
7a1f095eb5
Reading a config wrote it back. profilemanager.readConfig persisted whatever apply() had filled in, and ReadConfig created and wrote the file outright when it was absent, so every reader was quietly a writer: a gate deciding whether to refuse a request, a UI listing profiles, a mobile getter reading one preference. The previous commit worked around that with a PeekConfig variant, which left two read functions with opposite side effects and the antipattern still there for everyone else. Only one thing in a read genuinely had to be persisted: apply() generated the WireGuard and SSH keys when it found them empty, and a generated key cannot be recomputed — losing it means the peer comes back with a different identity and registers again. Everything else apply() fills in is a deterministic default that the next read recomputes anyway. So identity provisioning is now its own step, Config.EnsureIdentity, and the callers that provision write the result out themselves, in the open: - Server.getConfig, the daemon's provisioning point; - the CLI's foreground login, which is about to dial management; - update() / directUpdate(), the config write paths — a stored profile can legitimately carry no identity, since a mobile logout clears the keys in place, and the next write is what has to mint a new one. ReadConfig and GetConfig no longer write anything, PeekConfig is gone, and the dry-run baseline no longer needs placeholder keys to keep apply() from minting real ones. One deliberate leftover: readConfig still calls util.EnforcePermission, which chmods a config file whose permissions are too broad. It changes no content and is idempotent, and dropping it would leave a legacy file world-readable until its first write.