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Enable checked-exception analysis and fix HTTP client error handling - #142
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📝 WalkthroughWalkthroughThe client wraps setup failures, rejects successful JSON responses that decode to scalars, and supports CA bundle directories and reused PHAR bundle copies. Exception documentation, PHPStan configuration, development-tool constraints, the changelog, and tests are also updated. ChangesClient and HTTP behavior
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Bug fix Suggested reviewers: Merge Risk: 🔵 Low · up to This change wraps client setup failures and handles CA bundle paths more robustly. One minor robustness gap remains in the shutdown cleanup of extracted CA bundle copies, which can raise a warning if the cache is reset before shutdown. It is safe to merge with a small follow-up. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to Certificate and hostname verification remain enabled, and setup failures are reported consistently. The main design considerations are compatibility with dependent clients and the lifetime of shared certificate snapshots. No introduced security vulnerability was established, but trust-refresh behavior in long-running executions remains uncertain. Retained concerns Security review detailsSecurity Blast Radius
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Hardening Proposals
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🟢 Approval recommended
The exception declarations match the implementation, and the PHPStan configuration is correctly scoped.
Review effort: Balanced
Findings: None
What changed in this PR
Enables PHPStan checked-exception analysis and documents exceptions propagated through HTTP requests.
Changes:
- Enables missing checked-exception detection while exempting tests.
- Adds
@throwsdeclarations across client and HTTP abstractions. - Records the exception-contract changes in the changelog.
| File | Description |
|---|---|
src/WebService/Http/RequestFactory.php |
Documents cURL initialization failures. |
src/WebService/Http/Request.php |
Declares request failure exceptions. |
src/WebService/Http/CurlRequest.php |
Documents GET request failures. |
src/WebService/Client.php |
Completes public and internal exception contracts. |
phpstan.neon |
Enables checked-exception analysis and exempts tests. |
CHANGELOG.md |
Records the new exception declarations. |
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Turn on exceptions.check.missingCheckedExceptionInThrows so PHPStan reports a checked exception that can reach a caller without a matching @throws tag. Tests are exempt because PHPUnit handles any exception a test throws. Configure Error and LogicException as unchecked. They signal programmer errors. Setting them explicitly also makes the result independent of the PHPStan version, because older 2.2 releases treat Error as checked by default. Declare the RuntimeException thrown when the cURL version cannot be determined, the cURL handle cannot be initialized, or the CA bundle cannot be set up. Declare the web service exceptions on Client::get() and HttpException on the Request interface and CurlRequest::get(). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
composer.lock is not committed, so the require-dev constraints alone decide which tool versions CI and developers install. PHPStan used "*", which allows any version, including a future major release that changes behavior. php-cs-fixer and PHP_CodeSniffer allowed any release of their major version. Require the major and minor versions that CI installs now: PHPStan 2.2, PHP_CodeSniffer 4.0, and php-cs-fixer 3.95. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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- 🪄 Fix CodeRabbit comments on this PR
🤖 Prompt to fix review comments
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Review comments at @phpstan.neon:
- Around line 6-17: Add a checkedExceptionClasses configuration under exceptions
in phpstan.neon, including Exception, so missingCheckedExceptionInThrows checks
the intended checked exception set in src; preserve the existing unchecked
exception and test-ignore settings.
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CHANGELOG.mdcomposer.jsonphpstan.neonsrc/WebService/Client.phpsrc/WebService/Http/CurlRequest.phpsrc/WebService/Http/Request.phpsrc/WebService/Http/RequestFactory.php
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LGTM, with Claude comments
| * @throws HttpException when an unexpected HTTP error occurs | ||
| * @throws WebServiceException when some other error occurs. This also | ||
| * serves as the base class for the above exceptions. | ||
| * @throws \RuntimeException if the cURL version cannot be determined or |
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The new @throws \RuntimeException on Client::post() and Client::get() makes PHPStan fail in GeoIP2-php and minfraud-api-php when this version is released. Their checked-exception PRs (maxmind/GeoIP2-php#348 and maxmind/minfraud-api-php#292) do not declare or catch RuntimeException.
I copied the src/ of this branch into the vendor directories of those two PRs and ran PHPStan with their configs (missingCheckedExceptionInThrows: true):
- GeoIP2 reports
GeoIp2\WebService\Client::responseFor() throws checked exception RuntimeExceptionat line 229. - minFraud reports
MaxMind\MinFraud::post()at line 1541 andReportTransaction::report()at line 186.
Neither repo commits a lockfile. Thus CI installs the new release on its next run, and the lint job fails with no code change.
🤖 Comment by Claude Opus 5.5.
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Fixed across 2b28980, maxmind/GeoIP2-php#348, and maxmind/minfraud-api-php#292. This client now wraps setup failures in WebServiceException. The downstream PRs also declare the raw RuntimeException that older releases can throw. Both downstream repos pass PHPStan and PHPUnit with this source in vendor. They should merge before this release.
🤖 Comment by Codex on behalf of Greg.
| * * `proxy` - The HTTP proxy to use. May include a schema, port, | ||
| * username, and password, e.g., `http://username:password@127.0.0.1:10`. | ||
| * | ||
| * @throws \RuntimeException if the `caBundle` option is not set and the |
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The new @throws \RuntimeException on Client::__construct() makes each downstream constructor that calls new WsClient(...) fail the missing-checked-exception rule.
With this branch in vendor, PHPStan reports GeoIp2\WebService\Client::__construct() throws checked exception RuntimeException (line 100) and the same for MaxMind\MinFraud\ServiceClient::__construct() (line 48). Neither dependent PR adds this tag, so both lint jobs fail after the release.
🤖 Comment by Claude Opus 5.5.
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Fixed across 2b28980, maxmind/GeoIP2-php#348, and maxmind/minfraud-api-php#292. The client constructor now reports setup failures as WebServiceException. The downstream constructors declare that exception and the RuntimeException from older releases. Both downstream repos pass PHPStan with this source.
🤖 Comment by Codex on behalf of Greg.
| CHANGELOG | ||
| ========= | ||
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| 0.12.0 |
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The PR says that this entry uses 0.12.0 to protect dependents. But the version constraints of the dependents accept 0.12.0 automatically.
GeoIP2-php requires maxmind/web-service-common: ~0.11, which means >=0.11 <1.0. The released geoip2/geoip2 v3.4.0, which minFraud uses, has the same constraint. Neither repo commits a lockfile, so the next composer install gets 0.12.0. The minor version change gives no isolation. The downstream @throws changes must merge before this release, not after. See the release-order comment in this review.
🤖 Comment by Claude Opus 5.5.
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Agreed. The ~0.11 constraint accepts 0.12.0, so the version number does not isolate consumers. The downstream fixes are now pushed and pass PHPStan and PHPUnit with this source. GeoIP2 #348 and minFraud #292 should merge before this release.
🤖 Comment by Codex on behalf of Greg.
| * @throws \RuntimeException if the cURL version cannot be determined or | ||
| * the cURL handle cannot be initialized | ||
| */ | ||
| private function createRequest(string $path, array $headers = []): Http\Request |
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This PR documents a raw \RuntimeException that escapes from post() and get(). A better fix is to throw a WebServiceException subclass, or wrap the error in one. This keeps the current contract that WebServiceException is the base class.
GeoIP2 responseFor() already does catch (WebServiceException $ex) and wraps it in GeoIp2Exception, and minFraud documents only WebServiceException subclasses. A cURL setup failure skips those catch blocks and reaches users as an undocumented RuntimeException. The new tags also make each dependent add a new @throws line. If createRequest() or getCaBundle() wraps the error, both problems go away.
🤖 Comment by Claude Opus 5.5.
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Fixed in 2b28980. The constructor and createRequest() now report setup failures as WebServiceException. Wrapped RuntimeExceptions remain available through getPrevious(). Regression tests cover CA bundle setup and request-factory failures, and the changelog records the change.
🤖 Comment by Codex on behalf of Greg.
| } | ||
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| /** | ||
| * @throws \RuntimeException if the cURL version cannot be determined or |
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getCaBundle() can return a directory from CaBundle::getSystemCaRootBundlePath() (line 493). CurlRequest then gives that directory to CURLOPT_CAINFO. This docblock says that a missing CA bundle throws, but file_exists() also returns true for a directory.
Set SSL_CERT_DIR=/etc/ssl/certs and do not set SSL_CERT_FILE. The caDirUsable() check in ca-bundle returns the directory, file_exists() passes, and CURLOPT_CAINFO gets a directory. Each HTTPS request then fails with cURL error 77 ("error setting certificate verify locations"), and no RuntimeException occurs. A directory must go to CURLOPT_CAPATH.
This bug is older than this PR, but the PR now documents this method.
🤖 Comment by Claude Opus 5.5.
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Fixed in f66748f. CurlRequest now uses CURLOPT_CAPATH for a certificate directory and CURLOPT_CAINFO for a file. A local HTTPS regression test verifies a server certificate through a CA directory. The changelog records the fix.
🤖 Comment by Codex on behalf of Greg.
| */ | ||
| private function userAgent(): string | ||
| { | ||
| $curlVersion = curl_version(); |
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userAgent() calls curl_version() on each request. Because of this, the PR must document a RuntimeException for each call to post() and get(). The user agent does not change, so the constructor can calculate it one time.
If the constructor calculates the user agent, it can use the curl_version() result that getCaBundle() already gets. Then the request methods throw RuntimeException only when curl_init fails.
🤖 Comment by Claude Opus 5.5.
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Fixed in 2b28980. The constructor now computes and stores the user agent. It calls curl_version() once and passes the SSL version to getCaBundle().
🤖 Comment by Codex on behalf of Greg.
| */ | ||
| private function getCaBundle(): ?string | ||
| { | ||
| $curlVersion = curl_version(); |
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getCaBundle() has the same curl_version() call, the same false check and the same curl_version() returned false RuntimeException as userAgent() (line 157). The PR adds matching docblocks to both copies.
One private helper, or one call in the constructor, would remove the duplicate and one of the documented throw sites.
🤖 Comment by Claude Opus 5.5.
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Fixed in 2b28980. The duplicate calls and failure checks are removed. The constructor gets the cURL version once for both the user agent and CA bundle selection.
🤖 Comment by Codex on behalf of Greg.
| @@ -450,6 +473,11 @@ private function handleSuccess(int $statusCode, ?string $body, string $service): | |||
| return $decodedContent; | |||
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The new get()/post() contract says that a 200 body that cannot be decoded throws WebServiceException. But a valid JSON body that is not an array passes the null check and causes a TypeError here.
A 200 response with the body 1, "ok" or true (for example from a bad proxy) makes json_decode return a scalar. The value is not null, so this ?array method returns it, and PHP throws a TypeError. That error escapes past all documented exceptions and each downstream catch (WebServiceException).
🤖 Comment by Claude Opus 5.5.
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Fixed in 425a5f5. A decoded scalar now throws WebServiceException instead of reaching the array return type. Regression tests cover number, string, true, and false JSON bodies. The changelog records the change.
🤖 Comment by Codex on behalf of Greg.
| * the CA bundle cannot be found or copied out of | ||
| * a phar archive | ||
| */ | ||
| private function getCaBundle(): ?string |
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When the CA bundle is inside a phar, each new Client copies the bundle to a new temp file (line 499) and registers a new shutdown function. Nothing removes these files until the process stops.
A long-running worker that makes a Client for each job from a phar build creates one geoip2-* temp file and one shutdown closure for each instance. The temp directory and the shutdown list grow without limit. A static cache of the copied path would prevent this.
This bug is older than this PR. I put this comment on the getCaBundle() signature because line 499 is not in the diff.
🤖 Comment by Claude Opus 5.5.
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Fixed in d2a08f1. A static cache reuses each phar bundle's extracted file and registers one cleanup closure per archive path. A regression test constructs two clients and checks that both use the same temporary file. The changelog records the change.
🤖 Comment by Codex on behalf of Greg.
| - src | ||
| - tests | ||
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| exceptions: |
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Release order for the 4 STF-1850 PRs. This comment is the same on each of them:
- Enable checked-exception analysis and validate malformed database data MaxMind-DB-Reader-php#299
- Enable checked-exception analysis and fix HTTP client error handling #142
- Enable checked-exception analysis and complete exception contracts GeoIP2-php#348
- Enable checked-exception analysis and fix input validation failures minfraud-api-php#292
Reader #299 and web-service-common #142 add @throws \RuntimeException to methods that GeoIP2 and minFraud call. GeoIP2 and minFraud do not commit a lockfile, and their version constraints accept the new releases. GeoIP2 requires maxmind-db/reader: ^1.13.0 and maxmind/web-service-common: ~0.11. minFraud gets web-service-common through geoip2/geoip2: ^v3.4.0. Thus, when an upstream PR is released, PHPStan fails in the downstream repo on its next CI run, unless the downstream change is already merged.
Suggested order:
- Merge GeoIP2-php #348 and minfraud-api-php #292 first. Add
@throws \RuntimeExceptionwhere the upstream releases need it. The other comments in these reviews give the lines. An extra@throwstag is not an error now, becausetooWideThrowTypeis not enabled. In GeoIP2, move themetadata()andclose()ignores tophpstan.neonwithreportUnmatched: false, so that PHPStan passes before and after the reader release. - Release MaxMind-DB-Reader-php #299 and web-service-common-php Enable checked-exception analysis and fix HTTP client error handling #142.
- In GeoIP2 and minFraud, raise the version constraints to the new releases and remove the ignores that are no longer necessary.
🤖 Comment by Claude Opus 5.5.
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Agreed. The downstream fixes are now pushed in maxmind/GeoIP2-php#348 and maxmind/minfraud-api-php#292. Both pass PHPStan and PHPUnit with the revised upstream source. Merge those PRs before releasing this PR and maxmind/MaxMind-DB-Reader-php#299. Dependency minimums and obsolete compatibility ignores can be updated after release.
🤖 Comment by Codex on behalf of Greg.
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Review comments at @tests/MaxMind/Test/WebService/Http/CurlRequestTest.php:
- Around line 10-11: Declare symfony/process as a development dependency in
composer.json so the ExecutableFinder and Process imports used by
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Review comments at @src/WebService/Client.php:
- Around line 528-537: Update the shutdown closure registered for pharCaBundles
to read the cached path safely and skip cleanup when the entry is missing; only
call is_file and unlink when the path is non-null.
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Enable PHPStan checked-exception analysis for STF-1850. Missing exception declarations are checked in source code. Test methods and helpers are exempt, and source-only analysis also passes.
Client setup and request setup failures now use WebServiceException. Wrapped failures preserve the original exception. The client reads the cURL version once during construction.
Successful responses containing scalar JSON now throw WebServiceException. CA certificate directories use CURLOPT_CAPATH. Clients share the extracted copy of each phar CA bundle until process shutdown. Changelog entries cover these behavior changes.
Regression tests cover setup errors, scalar responses, phar bundle reuse, and HTTPS certificate validation using a local CA directory.
Merge maxmind/GeoIP2-php#348 and maxmind/minfraud-api-php#292 before releasing this change. Their version constraints accept the new release automatically. Both dependent PRs pass PHPStan and PHPUnit with this source. PHPStan 2.2.0 also passes.
Validation on PHP 8.5.4: PHPUnit, PHPStan 2.2.17, PHP-CS-Fixer, PHP_CodeSniffer, and Composer validation pass.
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