coollabsio/coolify · error · Exception

Certificate content cannot be empty.

Error message

Certificate content cannot be empty.

What it means

saveCaCertificate() on a server's CA certificate screen requires a non-empty certificateContent before parsing. The check ! $this->certificateContent is a plain falsy test on the Livewire-bound textarea value, so null, '' (and the degenerate '0') are rejected up front - the save never reaches openssl.

Source

Thrown at app/Livewire/Server/CaCertificate/Show.php:60

        $this->caCertificate = $this->server->sslCertificates()->where('is_ca_certificate', true)->first();

        if ($this->caCertificate) {
            $this->certificateContent = $this->caCertificate->ssl_certificate;
            $this->certificateValidUntil = $this->caCertificate->valid_until;
        }
    }

    public function toggleCertificate()
    {
        $this->showCertificate = ! $this->showCertificate;
    }

    public function saveCaCertificate()
    {
        try {
            $this->authorize('manageCaCertificate', $this->server);
            if (! $this->certificateContent) {
                throw new \Exception('Certificate content cannot be empty.');
            }

            $parsedCert = openssl_x509_read($this->certificateContent);
            if (! $parsedCert) {
                throw new \Exception('Invalid certificate format.');
            }

            if (! openssl_x509_export($parsedCert, $cleanedCertificate)) {
                throw new \Exception('Failed to process certificate.');
            }
            $this->certificateContent = $cleanedCertificate;

            if ($this->caCertificate) {
                $this->caCertificate->ssl_certificate = $this->certificateContent;
                $this->caCertificate->save();

                $this->loadCaCertificate();

View on GitHub (pinned to 70b9acc424)

Solutions

1. Paste the CA certificate (PEM) into the textarea and submit again
2. Confirm the textarea is actually bound with wire:model="certificateContent"
3. Add a required client-side rule so the button is disabled while empty
4. Trim the input; whitespace-only content will trip the format check at line 65 instead

Example fix

// before
public function saveCaCertificate() {
    $this->authorize('manageCaCertificate', $this->server);
    if (! $this->certificateContent) { throw new \Exception('Certificate content cannot be empty.'); }
}

// after (guard before submit)
if (trim((string) $this->certificateContent) === '') {
    $this->dispatch('error', 'Certificate content cannot be empty.');
    return;
}

if (trim((string) $this->certificateContent) === '') {
    // block save before calling saveCaCertificate
}

Catch \Exception in the action and dispatch('error', $e->getMessage()); note whitespace-only input passes the emptiness check but will fail openssl_x509_read - trim first.

When it happens

Trigger: Clicking Save with an empty textarea; the wire:model property never being filled (form not bound); submitting whitespace-only? (whitespace is truthy, so it passes this check and fails later at openssl_x509_read instead).

Common situations: Misclicks on an empty form; form state reset after a failed previous save; clipboard paste failing silently.

Understand the failure class

• SSL/TLS and certificate errors — how TLS handshakes and certificate validation fail.

Related errors

• Invalid Cron / Human expression for Disk Usage Check Frequen
• Invalid certificate format.
• Invalid Cron / Human expression for Docker Cleanup Frequency
• A server with this IP/Domain already exists in your team.
• A server with this IP/Domain is already in use by another te

AI-assisted analysis of coollabsio/coolify@70b9acc424 (2026-08-17). Data as JSON: /api/errors/9a3b5262f420ff50. Report an issue: GitHub.