Add access checks to issue_redirector and coverage_report handlers#5259
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sammiee5311 wants to merge 1 commit intogoogle:masterfrom
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Add access checks to issue_redirector and coverage_report handlers#5259sammiee5311 wants to merge 1 commit intogoogle:masterfrom
sammiee5311 wants to merge 1 commit intogoogle:masterfrom
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issue_redirector previously fetched testcases by ID without any access check, exposing bug-tracker URLs (including for security-sensitive testcases) to anyone able to iterate testcase IDs. Switch to access.check_access_and_get_testcase, matching the rest of the testcase handlers. coverage_report's @handler.oauth decorator only populates an email; it does not authorize. Add access.has_access(job_type=...) before resolving the report URL so non-authorized users cannot pull coverage maps for projects they do not own.
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Fixes #5258.
/issue/<testcase_id>was usinghelpers.get_testcase()which fetches by ID with no access check. Switched it toaccess.check_access_and_get_testcase(), the same call the rest of the testcase handlers use (testcase_detail/show.py,download_testcase.py)./coverage-report/...had@handler.oauthbut that decorator only populates an email if one's present, it doesn't authorize. Added ahas_access(job_type=job)check before resolving the URL. Same pattern asfuzzer_stats.py. Pulled the input validation out into_validate_argsso the handler andget_report_urlaren't duplicating it.This is the same class of issue as #5196 (task-log, fixed in #5243).
Test plan
python butler.py py_unittest -t appengine -p issue_redirector_test.py— 3/3 passpython butler.py py_unittest -t appengine -p coverage_report_test.py— 7/7 pass (3 existing + 4 new inHandlerAccessTest)