# Description of Changes
Add new triggers:
- Schedule (fires every X amount of time)
- Folder watch (fires whenever the OS tells us a folder has a new file
in it; on Mac this is technically a 2s schedule but that's just how Java
implements it)
Add new sources:
- Folder (reads from this directory)
Add new sinks:
- Inline (stores in FileStorage)
- Folder (stores in specified directory)
Still want to do S3 buckets and web hooks and stuff, but they can come
in a future PR. I'm hoping this should make it sufficient to be able to
integrate with processing folders frontend etc. I've also changed it so
that policies can have multiple sources and triggers at once, which
seems like it might be useful.
Adds an optional MCP server (proprietary module) that exposes Stirling's
PDF operations and AI capabilities to MCP clients. Off by default, zero
footprint when disabled.
### What
- New `/mcp` endpoint: streamable-HTTP + JSON-RPC 2.0; 8 tools
(describe_operation, pages/convert/misc/security category tools, AI,
upload, download).
- Runs real operations over an internal loopback; results returned
inline as base64 (small) or by fileId (large).
### Auth (two modes)
- OAuth2 resource server: RFC 9728 protected-resource metadata, RFC 8707
audience binding, JWKS, `mcp.tools.read/write` scopes; binds each token
to a provisioned Stirling account.
- API-key mode: reuses Stirling per-user `X-API-KEY` (no IdP needed).
### Security
- Per-user file ownership in FileStorage: async/queued writes scoped to
the submitting user; legacy/owner-less files stay readable.
- Admin allow/block list controls which operations are exposed.
- Python engine gated behind a shared secret (`X-Engine-Auth`).
- MCP filter chain is isolated and cannot weaken the main app's
security.
- Hardened: no upstream error-body leakage, log injection sanitized,
fileId path/sidecar enumeration blocked.
### Config / footprint
- Disabled by default (`mcp.enabled=false`); all beans
`@ConditionalOnProperty`.
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have run `task check` to verify linters, typechecks, and tests
pass
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#7-testing)
for more details.
# Description of Changes
## What & why
Customers using ADFS (or any generic OIDC provider that doesn't emit
`email`) hit `Attribute value for 'email' cannot be null` during OAuth2
login with no visibility into what claims the provider actually sent.
The only available remedy was guessing at
`security.oauth2.useAsUsername` until something worked.
This PR adds a new opt-in `security.oauth2.debugLogging` flag (default
`false`). When enabled, `CustomOAuth2UserService` logs:
- All ID token claims (sorted, with values)
- All UserInfo endpoint claims (if any)
- The merged attribute key set Spring exposes to `getAttribute()`
- The value the configured `useAsUsername` actually resolved to
- A **`Hint:`** line listing the claim keys present in the token that
map to a valid `UsernameAttribute` enum value — i.e. exactly what the
operator could put in `useAsUsername` to make login work
Logged at `INFO` on the success path and `ERROR` on failure (inside the
existing `catch (IllegalArgumentException)` block that throws
`OAuth2AuthenticationException`). The block is wrapped with a `[OAUTH2
DEBUG] ... [/OAUTH2 DEBUG]` banner and ends with a PII warning so
operators don't leave it on in production.
Default off → zero observable change for anyone not actively
troubleshooting.
## Files changed
| File | Why |
|---|---|
| `app/common/.../ApplicationProperties.java` | New `debugLogging` field
on the `OAUTH2` config class with javadoc warning about PII |
| `app/core/src/main/resources/settings.yml.template` | Documents
`oauth2.debugLogging` so it appears on next startup |
| `app/proprietary/.../security/service/CustomOAuth2UserService.java` |
Emits the claim dump + suggestion hint when the flag is on |
|
`app/proprietary/.../security/service/CustomOAuth2UserServiceDebugLoggingTest.java`
(new) | Unit test: mocks the OIDC delegate, asserts off-path is silent
and on-path emits the dump with the right Hint contents |
## End-to-end verification
Ran the bundled `testing/compose/docker-compose-keycloak-oauth.yml`
Keycloak realm, configured `security.oauth2.useAsUsername: mail`
(Keycloak emits `email`, not `mail`) and `provider: demarest` (matches
the original customer bug report). Triggered the OAuth flow at
`http://localhost:8080/oauth2/authorization/demarest` and confirmed:
- The ERROR-level dump fires with the full 19-claim ID token decoded
- `-- Value at 'mail' : <NULL — this is why login fails>` correctly
identifies the missing claim
- `-- Hint:` correctly suggests `[email, family_name, given_name,
preferred_username]` (the four keys present that map to valid
`UsernameAttribute` values)
- Auth still fails with the original `OAuth2AuthenticationException` —
no change to control flow, just added diagnostic logging
Unit test (`CustomOAuth2UserServiceDebugLoggingTest`) covers both
branches.
## Reviewer notes
- **No new public APIs.** The flag is config-only; no servlet endpoints
exposed.
- **PII is logged when the flag is on.** This is the whole point —
operators need to see the claims to fix their config — but it's gated,
defaults off, and the dump self-documents with a `WARNING: ... Set
security.oauth2.debugLogging=false once troubleshooting is complete.`
footer.
- **Why log everything, not just sub/email?** Because the operator
doesn't know in advance which claim they actually want. ADFS uses `upn`
in some configs and `preferred_username` in others; Azure AD uses `oid`;
the customer here had neither. Dumping the full set is the only way to
make the diagnostic self-service.
- **Out of scope for this PR (follow-ups):**
- The `UsernameAttribute` enum doesn't include `upn` / `unique_name`
(common ADFS claims). If the customer's token only has `upn`, the Hint
will be empty even though the operator can see `upn` in the dump. Worth
a separate PR to extend the enum.
- The known-provider validator in `Provider.java` (rejects e.g.
`useAsUsername: mail` for `provider: keycloak` at startup) bypasses our
diagnostic for those provider names. ADFS customers using `provider:
<name>` fall into the `default` branch so are not affected — but it's a
sharp edge worth documenting.
---
## Checklist
### General
- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable) — N/A, backend-only change
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings
### Documentation
- [ ] Doc-repo update (if functionality has heavily changed) —
diagnostic flag is self-documenting via the `settings.yml.template`
comment and the in-log warning; happy to add a doc-repo entry if
reviewers want one
- [ ] Translation tags — N/A
### UI Changes (if applicable)
- [ ] N/A — backend-only
### Testing (if applicable)
- [x] Unit test added (`CustomOAuth2UserServiceDebugLoggingTest`)
covering on/off paths and Hint correctness
- [x] End-to-end verified locally against bundled Keycloak compose with
intentionally misconfigured `useAsUsername`
- [x] Full `:proprietary:test` suite passes
# Description of Changes
Add Java orchestration layer which can connect and go back and forth
with the AI engine to get results for the user. It's expected that the
AI engine will not be publicly available and this Java layer will always
be in front of it, to manage sessions and auth etc.
### Motivation
- Allow operators to configure a pipeline base directory and multiple
watched folders so the pipeline can monitor several directories and
subdirectories concurrently.
- Ensure scanning traverses subdirectories while skipping internal
processing folders (e.g. `processing`) and preserve existing behavior
for finished/output paths.
- Expose the new options in the server `settings.yml.template` and the
admin UI so paths can be edited from the web console.
### Description
- Added new `pipelineDir` and `watchedFoldersDirs` fields to
`ApplicationProperties.CustomPaths.Pipeline` and kept backward
compatibility with `watchedFoldersDir`
(app/common/src/main/java/stirling/software/common/model/ApplicationProperties.java).
- Resolved pipeline base and multiple watched folder paths in
`RuntimePathConfig` and exposed `getPipelineWatchedFoldersPaths()`
(app/common/src/main/java/stirling/software/common/configuration/RuntimePathConfig.java).
- Updated `FileMonitor` to accept and register multiple root paths
instead of a single root
(app/common/src/main/java/stirling/software/common/util/FileMonitor.java).
- Updated `PipelineDirectoryProcessor` to iterate all configured watched
roots and to walk subdirectories while ignoring `processing` dirs
(app/core/src/main/java/stirling/software/SPDF/controller/api/pipeline/PipelineDirectoryProcessor.java).
- Exposed the new settings in `settings.yml.template` and the admin UI,
including a multi-line `Textarea` to edit `watchedFoldersDirs`
(app/core/src/main/resources/settings.yml.template,
frontend/src/proprietary/components/shared/config/configSections/AdminGeneralSection.tsx).
- Adjusted unit test setup to account for list-based watched folders
(app/common/src/test/java/stirling/software/common/util/FileMonitorTest.java).
### Testing
- Ran formatting and build checks with `./gradlew spotlessApply` and
`./gradlew build` using Java 21 via
`JAVA_HOME=/root/.local/share/mise/installs/java/21.0.2
PATH=/root/.local/share/mise/installs/java/21.0.2/bin:$PATH ./gradlew
...`, but both runs failed due to Gradle plugin resolution being blocked
in this environment (plugin portal/network 403), so full
compilation/formatting could not complete.
- Confirmed the code compiles locally was not possible here; unit test
`FileMonitorTest` was updated to use the new API but was not executed
due to the blocked build.
- Changes were committed (`Support multiple pipeline watch directories`)
and the repository diff contains the listed file modifications.
------
[Codex
Task](https://chatgpt.com/codex/tasks/task_b_69741ecd17c883288d8085a63ccd66f4)
# Description of Changes
This pull request introduces Telegram bot integration to the
application, enabling users to send files via Telegram for processing
through the pipeline. The main changes add configuration options,
dependency management, and a new service for handling Telegram
interactions.
**Telegram bot integration:**
* Added a new `TelegramPipelineBot` service (`TelegramPipelineBot.java`)
that listens for incoming Telegram messages, downloads attached files or
photos, places them in a pipeline inbox folder, waits for processing
results, and sends the output files back to the user. The service
includes error handling and status messaging.
* Introduced a `TelegramBotConfig` configuration class to initialize and
register the Telegram bot only when enabled via application properties.
* Added a new `Telegram` configuration section to
`ApplicationProperties` and the `settings.yml.template`, supporting
options like enabling/disabling the bot, bot token/username, pipeline
folder, processing timeout, and polling interval.
[[1]](diffhunk://#diff-1c357db0a3e88cf5bedd4a5852415fadad83b8b3b9eb56e67059d8b9d8b10702R63)
[[2]](diffhunk://#diff-1c357db0a3e88cf5bedd4a5852415fadad83b8b3b9eb56e67059d8b9d8b10702R580-R589)
[[3]](diffhunk://#diff-12f23603ae35319a3ea08f91b6340d5d935216941fda2e69d2df1b6cd22a63f2R108-R115)
**Dependency management:**
* Added the `org.telegram:telegrambots` library to the project
dependencies to support Telegram bot functionality.
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
---------
Co-authored-by: Copilot <[email protected]>
Co-authored-by: Anthony Stirling <[email protected]>
Added an optional flag in settings.yml to hide the settings button in no
login servers. When hidden, users can no longer:
- Open the Settings modal at all (gear button is hidden)
- Change General preferences (tool picker mode, hide unavailable
tools/conversions, auto‑unzip and file limit)
- Configure keyboard shortcuts (Hotkeys / Keyboard Shortcuts section)
- Use the in‑app update checker UI (see current/latest version, check
for updates, view update details)
- Note: When enableLogin === true, the flag is ignored and the Settings
button remains visible.
---------
Co-authored-by: Anthony Stirling <[email protected]>
Co-authored-by: Reece Browne <[email protected]>
## Summary
- introduce a shared line art conversion interface and proprietary
ImageMagick-backed implementation
- have the compress controller optionally autowire the enterprise
service before running per-image line art processing
- remove ImageMagick command details from core by delegating conversions
through the proprietary service
## Testing
- not run (not requested)
------
[Codex
Task](https://chatgpt.com/codex/tasks/task_b_6928aecceaf083289a9269b1ca99307e)
---------
Co-authored-by: James Brunton <[email protected]>
Also added `enableDesktopInstallSlide` flag in `settings.yml` to hide
the download for desktop page in the onboarding.
---------
Co-authored-by: James Brunton <[email protected]>
## Summary
- add optional STARTTLS and SSL-related fields to mail settings with
defaults matching prior behavior
- apply the new mail properties in the SMTP JavaMail configuration,
including trust and hostname verification overrides
- update mail settings template and tests to cover default behavior and
explicit TLS/SSL overrides
- clarify STARTTLS naming and sslTrust usage with examples in property
comments and the settings template
- default sslTrust to a wildcard when unset so TLS connections accept
any host by default unless tightened
## Testing
- ./gradlew :proprietary:test --tests
stirling.software.proprietary.security.service.MailConfigTest --console
plain
------
[Codex
Task](https://chatgpt.com/codex/tasks/task_b_693864b2a6648328ae75c7e88a726a65)
## Summary
- add a `PdfJsonConversionService` that serializes PDF text, fonts, and
metadata to JSON and rebuilds a PDF from the same structure
- expose REST endpoints for `/pdf/json` and `/json/pdf` conversions
using the existing convert API infrastructure
- define JSON model classes capturing document metadata, font
information, and positioned text elements
## Testing
- `./gradlew spotlessApply` *(fails: plugin
org.springframework.boot:3.5.4 unavailable in build environment)*
- `./gradlew build` *(fails: plugin org.springframework.boot:3.5.4
unavailable in build environment)*
------
https://chatgpt.com/codex/tasks/task_b_68f8e98d94ac8328a0e499e541528b6f
---------
Co-authored-by: EthanHealy01 <[email protected]>
This PR migrates the login features from V1 into V2.
---
- Login via username/password
- SSO login (Google & GitHub)
-- Fixed issue where users authenticating via SSO (OAuth2/SAML2) were
identified by configurable username attributes (email,
preferred_username, etc.), causing:
- Duplicate accounts when username attributes changed
- Authentication failures when claim/NameID configuration changed
- Data redundancy from same user having multiple accounts
- Added `sso_provider_id` column to store provider's unique identifier
(OIDC sub claim / SAML2 NameID)
- Added `sso_provider` column to store provider name (e.g., "google",
"github", "saml2")
- User.java:65-69
Backend Changes:
- Updated UserRepository with findBySsoProviderAndSsoProviderId() method
(UserRepository.java:25)
- Modified UserService.processSSOPostLogin() to implement lookup
priority:
a. Find by (`ssoProvider`, `ssoProviderId`) first
b. Fallback to username for backward compatibility
c. Automatically migrate existing users by adding provider IDs
(UserService.java:64-107)
- Updated saveUserCore() to accept and store SSO provider details
(UserService.java:506-566)
OAuth2 Integration:
- CustomOAuth2UserService: Extracts OIDC sub claim and registration ID
(CustomOAuth2UserService.java:49-59)
- CustomOAuth2AuthenticationSuccessHandler: Passes provider info to
processSSOPostLogin()
(CustomOAuth2AuthenticationSuccessHandler.java:95-108)
SAML2 Integration:
- CustomSaml2AuthenticationSuccessHandler: Extracts NameID from SAML2
assertion (CustomSaml2AuthenticationSuccessHandler.java:120-133)
---
- Configurable Rate Limiting
Changes:
- Added RateLimit configuration class to ApplicationProperties.Security
(ApplicationProperties.java:314-317)
- Made reset schedule configurable: security.rate-limit.reset-schedule
(default: "0 0 0 * * MON")
- Made max requests configurable: security.rate-limit.max-requests
(default: 1000)
- Updated RateLimitResetScheduler to use @Scheduled(cron =
"${security.rate-limit.reset-schedule:0 0 0 * * MON}")
(RateLimitResetScheduler.java:16)
- Updated SecurityConfiguration.rateLimitingFilter() to use configured
value (SecurityConfiguration.java:377)
---
- Enable access without security features
Backend:
- Added /api/v1/config to permitAll endpoints
(SecurityConfiguration.java:261)
- Config endpoint already returns enableLogin status
(ConfigController.java:60)
Frontend:
- AuthProvider now checks enableLogin before attempting JWT validation
(UseSession.tsx:98-112)
- If enableLogin=false, skips authentication entirely and sets
session=null
- Landing component bypasses auth check when enableLogin=false
(Landing.tsx:42-46)
- Added createAnonymousUser() and createAnonymousSession() utilities
(springAuthClient.ts:440-464)
Closes#3046
---
## Checklist
### General
- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [x] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [x] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
---------
Signed-off-by: dependabot[bot] <[email protected]>
Signed-off-by: stirlingbot[bot] <stirlingbot[bot]@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ludy <[email protected]>
Co-authored-by: EthanHealy01 <[email protected]>
Co-authored-by: Ethan <[email protected]>
Co-authored-by: Anthony Stirling <[email protected]>
Co-authored-by: stirlingbot[bot] <195170888+stirlingbot[bot]@users.noreply.github.com>
Google drive oss. Shouldn't have any effect on pr deployment.
Mainly the removal of the old integration via backend.
I have added the picker service and lazy loading of the required google
dependency scripts when the necessary environment variables have been
implemented.
---------
Co-authored-by: Connor Yoh <[email protected]>
Co-authored-by: James Brunton <[email protected]>
This PR introduces JWT (JSON Web Token) authentication for Stirling-PDF,
allowing for stateless authentication capabilities alongside the
existing session-based authentication system.
### Key Features & Changes
JWT Authentication System
- Core Service: JwtService.java - Token generation, validation, and
cookie management
- Authentication Filter: JwtAuthenticationFilter.java - Request
interceptor for JWT validation
- Key Management: KeyPersistenceService.java +
KeyPairCleanupService.java - RSA key rotation and persistence
- Frontend: jwt-init.js - Client-side JWT handling and URL cleanup
Security Integration
- SAML2: JwtSaml2AuthenticationRequestRepository.java - JWT-backed SAML
request storage
- OAuth2: Updated CustomAuthenticationSuccessHandler. java,
CustomOAuth2AuthenticationSuccessHandler.java &
CustomSaml2AuthenticationSuccessHandler.java for JWT integration
- Configuration: Enhanced SecurityConfiguration.java with JWT filter
chain
Infrastructure
- Caching: CacheConfig.java - Caffeine cache for JWT keys
- Database: New JwtVerificationKey.java entity for key storage
- Error Handling: JwtAuthenticationEntryPoint.java for unauthorized
access
### Challenges Encountered
- Configured SecurityConfiguration to use either
`UsernamePasswordAuthenticationFilter` or `JWTAuthenticationFilter`
based on whether JWTs are enabled to prevent the former intercepting
requests while in stateless mode.
- Removed the `.defaultSuccessUrl("/")` from login configuration as its
inclusion was preventing overriding the use of the
`CustomAuthenticationSuccessHandler` and preventing proper
authentication flows.
---
## Checklist
### General
- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [x] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings
### Documentation
- [x] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [x] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### UI Changes (if applicable)
- [x] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
<img width="599" height="515" alt="Screenshot 2025-07-10 at 13 35 56"
src="https://github.com/user-attachments/assets/4126b752-ad0d-4ffa-b295-6714c43381e1"
/>
<img width="392" height="376" alt="Screenshot 2025-07-10 at 13 36 10"
src="https://github.com/user-attachments/assets/c681bc43-68ff-4934-8245-d544e2ad7b9c"
/>
<img width="1870" height="986" alt="eb750e8c3954fc47b2dd2e6e76ddb7d5"
src="https://github.com/user-attachments/assets/fca9b23d-b0b6-4884-8a26-98a441b641ef"
/>
<img width="1299" height="702" alt="Screenshot 2025-07-10 at 13 30 57"
src="https://github.com/user-attachments/assets/9415d8bf-fac4-4d38-8c3a-985d043d1076"
/>
### Testing (if applicable)
- [x] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
---------
Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ludy <[email protected]>
Co-authored-by: EthanHealy01 <[email protected]>
Co-authored-by: Ethan <[email protected]>
Co-authored-by: Anthony Stirling <[email protected]>
# Description of Changes
This pull request introduces a new SSRF (Server-Side Request Forgery)
protection mechanism for URL handling in the application. Key changes
include adding a dedicated `SsrfProtectionService`, integrating
SSRF-safe policies into HTML sanitization, and extending application
settings to support configurable URL security options.
### SSRF Protection Implementation:
* **`SsrfProtectionService`**: Added a new service to handle SSRF
protection with configurable levels (`OFF`, `MEDIUM`, `MAX`) and checks
for private networks, localhost, link-local addresses, and cloud
metadata endpoints
(`app/common/src/main/java/stirling/software/common/service/SsrfProtectionService.java`).
### Application Configuration Enhancements:
* **`ApplicationProperties`**: Introduced a new `Html` configuration
class with nested `UrlSecurity` settings, allowing fine-grained control
over URL security, including allowed/blocked domains and internal TLDs
(`app/common/src/main/java/stirling/software/common/model/ApplicationProperties.java`).
[[1]](diffhunk://#diff-1c357db0a3e88cf5bedd4a5852415fadad83b8b3b9eb56e67059d8b9d8b10702R293)
[[2]](diffhunk://#diff-1c357db0a3e88cf5bedd4a5852415fadad83b8b3b9eb56e67059d8b9d8b10702R346-R364)
* **`settings.yml.template`**: Updated the configuration template to
include the new `html.urlSecurity` settings, enabling users to customize
SSRF protection behavior
(`app/core/src/main/resources/settings.yml.template`).
### HTML Sanitization Updates:
* **`CustomHtmlSanitizer`**: Integrated SSRF-safe URL validation into
the HTML sanitizer by using the `SsrfProtectionService`. Added a custom
policy for validating `img` tags' `src` attributes
(`app/common/src/main/java/stirling/software/common/util/CustomHtmlSanitizer.java`).
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.
---------
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Co-authored-by: pixeebot[bot] <104101892+pixeebot[bot]@users.noreply.github.com>
Co-authored-by: Copilot <[email protected]>
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