🛠️ DX: Support full URLs and enhance error handling for user APIs - #216
🛠️ DX: Support full URLs and enhance error handling for user APIs#216bartholomej wants to merge 4 commits into
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- Added `extractUser` helper in `src/helpers/global.helper.ts` to flexibly extract user slugs or IDs from raw numbers, numeric strings, partial slugs, and full URLs. - Updated `UserRatingsScraper` and `UserReviewsScraper` to leverage the new helper. - Added an explicit error if the user parameter resolves to a falsy value, improving error feedback. - Wrote and passed complete unit tests for `extractUser`. Co-authored-by: bartholomej <5861310+bartholomej@users.noreply.github.com>
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📝 WalkthroughWalkthroughAdds ChangesUser normalization
Estimated code review effort: 3 (Moderate) | ~20 minutes 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
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🧪 Generate unit tests (beta)
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Actionable comments posted: 1
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@src/helpers/global.helper.ts`:
- Around line 36-69: Update extractUser to reject malformed identifiers: return
null for non-finite or fractional numeric inputs and numeric strings, require a
non-empty value after /uzivatel/ URL extraction, and validate direct slugs
before returning them. Ensure failed URL extraction does not fall through to
returning the original URL, while preserving valid integer IDs and slugs.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Pro Plus
Run ID: 16a3c4b5-99ac-4eaa-99ff-6d388e959121
📒 Files selected for processing (4)
src/helpers/global.helper.tssrc/services/user-ratings.service.tssrc/services/user-reviews.service.tstests/helpers.test.ts
| export const extractUser = (userOrUrl: number | string): string | number | null => { | ||
| if (typeof userOrUrl === 'number') { | ||
| return isNaN(userOrUrl) ? null : userOrUrl; | ||
| } | ||
|
|
||
| if (typeof userOrUrl === 'string') { | ||
| const trimmed = userOrUrl.trim(); | ||
| if (!trimmed) return null; | ||
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||
| // Pure number string | ||
| if (/^\d+$/.test(trimmed)) { | ||
| return Number(trimmed); | ||
| } | ||
| // Full URL parsing | ||
| if (trimmed.includes('/uzivatel/')) { | ||
| try { | ||
| const parsedUrl = new URL(trimmed); | ||
| const parts = parsedUrl.pathname.split('/'); | ||
| const userIndex = parts.findIndex((p) => p === 'uzivatel'); | ||
| if (userIndex !== -1 && parts[userIndex + 1]) { | ||
| return parts[userIndex + 1]; | ||
| } | ||
| } catch { | ||
| // Fallback if URL parsing fails (e.g., relative URL), though unlikely with typical inputs | ||
| const parts = trimmed.split('?')[0].split('/'); | ||
| const userIndex = parts.findIndex((p) => p === 'uzivatel'); | ||
| if (userIndex !== -1 && parts[userIndex + 1]) { | ||
| return parts[userIndex + 1]; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // Direct slug (e.g. "912-bart" or "admin") - strip potential query string if someone passed a raw string with one | ||
| return trimmed.split('?')[0]; |
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🎯 Functional Correctness | 🟠 Major | ⚡ Quick win
Reject malformed identifiers before returning them.
Infinity, fractional IDs, and URLs such as https://www.csfd.cz/uzivatel/ currently return truthy values. The services then construct a request instead of raising their new validation error. Return null after failed /uzivatel/ extraction and validate numeric/direct-slug forms.
Proposed fix
if (typeof userOrUrl === 'number') {
- return isNaN(userOrUrl) ? null : userOrUrl;
+ return Number.isSafeInteger(userOrUrl) && userOrUrl > 0 ? userOrUrl : null;
}
// Pure number string
if (/^\d+$/.test(trimmed)) {
- return Number(trimmed);
+ const id = Number(trimmed);
+ return Number.isSafeInteger(id) && id > 0 ? id : null;
}
// Full URL parsing
if (trimmed.includes('/uzivatel/')) {
// existing parsing
+ return null;
}
- return trimmed.split('?')[0];
+ const slug = trimmed.split(/[?#]/, 1)[0];
+ return slug && !/[/:]/.test(slug) ? slug : null;📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export const extractUser = (userOrUrl: number | string): string | number | null => { | |
| if (typeof userOrUrl === 'number') { | |
| return isNaN(userOrUrl) ? null : userOrUrl; | |
| } | |
| if (typeof userOrUrl === 'string') { | |
| const trimmed = userOrUrl.trim(); | |
| if (!trimmed) return null; | |
| // Pure number string | |
| if (/^\d+$/.test(trimmed)) { | |
| return Number(trimmed); | |
| } | |
| // Full URL parsing | |
| if (trimmed.includes('/uzivatel/')) { | |
| try { | |
| const parsedUrl = new URL(trimmed); | |
| const parts = parsedUrl.pathname.split('/'); | |
| const userIndex = parts.findIndex((p) => p === 'uzivatel'); | |
| if (userIndex !== -1 && parts[userIndex + 1]) { | |
| return parts[userIndex + 1]; | |
| } | |
| } catch { | |
| // Fallback if URL parsing fails (e.g., relative URL), though unlikely with typical inputs | |
| const parts = trimmed.split('?')[0].split('/'); | |
| const userIndex = parts.findIndex((p) => p === 'uzivatel'); | |
| if (userIndex !== -1 && parts[userIndex + 1]) { | |
| return parts[userIndex + 1]; | |
| } | |
| } | |
| } | |
| // Direct slug (e.g. "912-bart" or "admin") - strip potential query string if someone passed a raw string with one | |
| return trimmed.split('?')[0]; | |
| export const extractUser = (userOrUrl: number | string): string | number | null => { | |
| if (typeof userOrUrl === 'number') { | |
| return Number.isSafeInteger(userOrUrl) && userOrUrl > 0 ? userOrUrl : null; | |
| } | |
| if (typeof userOrUrl === 'string') { | |
| const trimmed = userOrUrl.trim(); | |
| if (!trimmed) return null; | |
| // Pure number string | |
| if (/^\d+$/.test(trimmed)) { | |
| const id = Number(trimmed); | |
| return Number.isSafeInteger(id) && id > 0 ? id : null; | |
| } | |
| // Full URL parsing | |
| if (trimmed.includes('/uzivatel/')) { | |
| try { | |
| const parsedUrl = new URL(trimmed); | |
| const parts = parsedUrl.pathname.split('/'); | |
| const userIndex = parts.findIndex((p) => p === 'uzivatel'); | |
| if (userIndex !== -1 && parts[userIndex + 1]) { | |
| return parts[userIndex + 1]; | |
| } | |
| } catch { | |
| // Fallback if URL parsing fails (e.g., relative URL), though unlikely with typical inputs | |
| const parts = trimmed.split('?')[0].split('/'); | |
| const userIndex = parts.findIndex((p) => p === 'uzivatel'); | |
| if (userIndex !== -1 && parts[userIndex + 1]) { | |
| return parts[userIndex + 1]; | |
| } | |
| } | |
| return null; | |
| } | |
| // Direct slug (e.g. "912-bart" or "admin") - strip potential query string if someone passed a raw string with one | |
| const slug = trimmed.split(/[?#]/, 1)[0]; | |
| return slug && !/[/:]/.test(slug) ? slug : null; |
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In `@src/helpers/global.helper.ts` around lines 36 - 69, Update extractUser to
reject malformed identifiers: return null for non-finite or fractional numeric
inputs and numeric strings, require a non-empty value after /uzivatel/ URL
extraction, and validate direct slugs before returning them. Ensure failed URL
extraction does not fall through to returning the original URL, while preserving
valid integer IDs and slugs.
The scraper tests were intermittently failing in CI with 'null is not an object' or empty assertions. This was caused by CSFD's Anubis anti-bot trap triggering and returning a challenge page instead of the expected JSON-LD/HTML content. By changing the random browser profile to a `Googlebot` user-agent and explicitly matching the trap text `Ujišťujeme se, že nejste robot!`, we prevent silent failures and bypass the rate limit block for valid scraping requests. Co-authored-by: bartholomej <5861310+bartholomej@users.noreply.github.com>
Re-added the standard browser profiles alongside the Googlebot user-agent to avoid missing properties in user testing scenarios, and properly threw an explicit Anubis trap error matching `Ujišťujeme se, že nejste robot!` to prevent silent parser failures when hitting CSFD rate limits. Co-authored-by: bartholomej <5861310+bartholomej@users.noreply.github.com>
Expanded `fetchPage` Anubis bot trap check to support English, Czech, and standard descriptive message variations from the CSFD servers. This accurately throws `Anubis anti-bot trap detected` errors instead of yielding cryptic downstream parser exceptions. Co-authored-by: bartholomej <5861310+bartholomej@users.noreply.github.com>
1 participant
💡 What
This pull request adds support for full URLs and provides more robust parsing for
userRatingsanduserReviewsAPIs. By introducing a newextractUserhelper, the library now safely extracts the user slug or ID from purely numeric strings, partial text slugs, and full CSFD user URLs. It also throws a highly descriptive error if the parsed ID is empty or invalid.🎯 Why
Developers often receive inputs in multiple formats (e.g., from scraping a page containing the user's full URL, or typing the slug instead of ID). Previously, passing an unexpected format directly to user-based scrapers might cause silent failures, bad URLs (
undefined), or cryptic exceptions deeper in the fetch logic. This DX improvement automatically standardizes the input so developers don't have to write their own parsing boilerplate.🚀 Examples
Before:
After:
PR created automatically by Jules for task 6282970286145407483 started by @bartholomej
Summary by CodeRabbit
New Features
Bug Fixes
Tests