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* fix: allow Gotenberg to reach private/Docker-internal hosts (Issue #688) The SSRF guard introduced in #664/#671 correctly blocks arbitrary private URLs, but also prevents legitimate use-cases where Gotenberg runs alongside InvoiceShelf in a Docker Compose network (e.g. the default http://pdf:3000 service name resolves to a private IP). Add a `gotenberg_allow_private_host` setting (env: GOTENBERG_ALLOW_PRIVATE_HOST, default false) that: - skips PrivateNetworkGuard in GotenbergPdfDriver - skips PublicHttpUrl validation in PDFConfigurationRequest - exposes a clearly-warned toggle in the admin PDF settings UI - is persisted to the settings table and loaded via AppConfigProvider A disabled guard is safe for controlled private networks (Docker Compose, LAN); it must never be enabled for untrusted hosts. The UI surfaces a prominent warning to communicate this constraint. Closes #688 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * refactor(gotenberg): scope the private-host exemption to a declared host Reshapes the escape hatch from a boolean admin setting into an environment-declared host allowlist. The driver streams the upstream response body back as the PDF, so a mis-set Gotenberg host is full-response SSRF — pointed at a link-local metadata endpoint it returns cloud credentials. A blanket "allow private" switch left that reachable: gotenberg_host stays editable from the admin UI, so any install that enabled the switch to run a sidecar could have the host repointed at an internal service. The population the flag existed to serve was exactly the population it failed to protect. GOTENBERG_ALLOWED_PRIVATE_HOST now names the single host that may skip the guard. Only that exact value is exempt; every other private target stays blocked. GotenbergHostPolicy owns the comparison so the save-time rule and the runtime driver guard cannot drift, and normalises case, trailing slash and surrounding whitespace on both sides. Being env-only also drops the settings-table key, the AppConfigProvider branch and the whole admin UI surface — the toggle there could not be switched on in any case, since BaseSwitchSection has no slot and was passed no v-model, so the child BaseSwitch was discarded and the value never changed from false. Restores the gotenberg_margins validation rule, which the previous revision replaced rather than added alongside. Tests cover both directions, including that declaring one private host does not exempt another; sabotaging the policy to always exempt fails 16 of the 22. Co-authored-by: csoscd <csoscd@users.noreply.github.com> --------- Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com> Co-authored-by: Darko Gjorgjijoski <dg@darkog.com> Co-authored-by: csoscd <csoscd@users.noreply.github.com>
47 lines
1.6 KiB
PHP
47 lines
1.6 KiB
PHP
<?php
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return [
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/*
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|--------------------------------------------------------------------------
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| Default PDF Driver
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|--------------------------------------------------------------------------
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| Here you may specify which of the PDF drivers below you wish to use as
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| your default driver for all PDF generation.
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*/
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'driver' => env('PDF_DRIVER', 'dompdf'),
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/*
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|--------------------------------------------------------------------------
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| PDF Connections
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|--------------------------------------------------------------------------
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| Here are each of the connections setup for your application. Example
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| configuration has been included, but you may add as many connections as
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| you would like.
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*/
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'connections' => [
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'dompdf' => [],
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'gotenberg' => [
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'host' => env('GOTENBERG_HOST', 'http://pdf:3000'),
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'papersize' => env('GOTENBERG_PAPERSIZE', '210mm 297mm'),
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/*
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* Gotenberg usually runs as a sidecar on a private network, which the
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* SSRF guard rejects. Name that one host here to exempt it — e.g.
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* GOTENBERG_ALLOWED_PRIVATE_HOST=http://pdf:3000. Only this exact value
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* is exempt; the guard still blocks every other private target, so the
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* host setting cannot be repointed at an internal service. No default:
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* the `host` fallback above must never be trusted implicitly.
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*/
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'allowed_private_host' => env('GOTENBERG_ALLOWED_PRIVATE_HOST'),
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],
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],
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];
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