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Remove eval and Function from build to support strict CSP #6872

@saulshanabrook

Description

@saulshanabrook

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Versions.

@angular/cli: 1.2.0 node: 8.1.0 os: darwin x64 @angular/animations: 4.2.5 @angular/common: 4.2.5 @angular/compiler: 4.2.5 @angular/core: 4.2.5 @angular/forms: 4.2.5 @angular/http: 4.2.5 @angular/platform-browser: 4.2.5 @angular/platform-browser-dynamic: 4.2.5 @angular/router: 4.2.5 @angular/cli: 1.2.0 @angular/compiler-cli: 4.2.5 @angular/language-service: 4.2.5 

Repro steps.

$ ng new test-csp $ yarn add web-ext

Create src/manifest.json with:

{ "manifest_version": 2, "name": "test-csp", "version": "1.0", "browser_action": { "default_title": "test-csp", "default_popup": "/index.html" } }

Add manifest.json to the apps[0].assets in the .angular-cli.json.

Repo available here https://github.com/saulshanabrook/test-csp

The log given by the failure.

Regular build:

$ ng build $ ./node_modules/.bin/web-ext lint -s dist Validation Summary: errors 0 notices 0 warnings 11 WARNINGS: Code Message Description File Line Column DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security polyfills.bundle.js 286 22 eval. vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security polyfills.bundle.js 850 71 eval. vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security polyfills.bundle.js 2397 11 eval. vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL eval can be harmful. Evaluation of strings as code can lead to security polyfills.bundle.js 2397 43 vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security vendor.bundle.js 2576 11 eval. vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL eval can be harmful. Evaluation of strings as code can lead to security vendor.bundle.js 2576 43 vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security vendor.bundle.js 36267 73 eval. vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security vendor.bundle.js 36273 17 eval. vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security vendor.bundle.js 36281 17 eval. vulnerabilities and performance issues, even in the most innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' UNSAFE_VAR_ASSIGNMENT Unsafe assignment to innerHTML Due to both security and performance concerns, this may not vendor.bundle.js 50833 71 be set using dynamic values which have not been adequately sanitized. This can lead to security issues or fairly serious performance degradation. UNSAFE_VAR_ASSIGNMENT Unsafe assignment to innerHTML Due to both security and performance concerns, this may not vendor.bundle.js 50878 9 be set using dynamic values which have not been adequately sanitized. This can lead to security issues or fairly serious performance degradation. 

Production build:

$ ng build --prod $ ./node_modules/.bin/web-ext lint -s dist Validation Summary: errors 0 notices 0 warnings 11 WARNINGS: Code Message Description File Line Column DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security polyfills.35d6fc6174fa08d451d6… 1 52746 eval. vulnerabilities and performance issues, even in the most .bundle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL eval can be harmful. Evaluation of strings as code can lead to security polyfills.35d6fc6174fa08d451d6… 1 52776 vulnerabilities and performance issues, even in the most .bundle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security polyfills.35d6fc6174fa08d451d6… 1 55491 eval. vulnerabilities and performance issues, even in the most .bundle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security polyfills.35d6fc6174fa08d451d6… 1 56434 eval. vulnerabilities and performance issues, even in the most .bundle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security vendor.7157c5dcd45d72de6187.bu… 1 54515 eval. vulnerabilities and performance issues, even in the most ndle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security vendor.7157c5dcd45d72de6187.bu… 1 54590 eval. vulnerabilities and performance issues, even in the most ndle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security vendor.7157c5dcd45d72de6187.bu… 1 54778 eval. vulnerabilities and performance issues, even in the most ndle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL The Function constructor is Evaluation of strings as code can lead to security vendor.7157c5dcd45d72de6187.bu… 1 127089 eval. vulnerabilities and performance issues, even in the most ndle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' DANGEROUS_EVAL eval can be harmful. Evaluation of strings as code can lead to security vendor.7157c5dcd45d72de6187.bu… 1 127119 vulnerabilities and performance issues, even in the most ndle.js innocuous of circumstances. Please avoid using `eval` and the `Function` constructor when at all possible.' UNSAFE_VAR_ASSIGNMENT Unsafe assignment to innerHTML Due to both security and performance concerns, this may not vendor.7157c5dcd45d72de6187.bu… 1 141593 be set using dynamic values which have not been adequately ndle.js sanitized. This can lead to security issues or fairly serious performance degradation. UNSAFE_VAR_ASSIGNMENT Unsafe assignment to innerHTML Due to both security and performance concerns, this may not vendor.7157c5dcd45d72de6187.bu… 1 142070 be set using dynamic values which have not been adequately ndle.js sanitized. This can lead to security issues or fairly serious performance degradation. 

Desired functionality.

We should be able to build the project with no CSP errors. That means eliminating all uses of eval and Function. This is needed in order for Mozilla to let any Angular 2 apps be submitted as extensions on their store. For example, I got this response when trying to submit an extension:

This version didn't pass review because of the following problems:

  1. 'unsafe-eval' usage into Content Security Policy.

We generally don't accept using the 'eval' function. There are many reasons not to use 'eval', and there are alternatives available. You can read more about it here: https://developer.mozilla.org/en/XUL_School/Appendix_C:_Avoid_using_eval_in_Add-ons

Mention any other details that might be useful.

Moved from #1279 (comment).

This might be blocked on Angular core angular/angular#6361 angular/angular#1744.

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