fix(acme): ensure apex cert is always obtained alongside the wildcard - #1419
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Included review availability: Your plan provides up to 8 included reviews per hour; 6 remain after this review. WalkthroughThe module now targets Go 1.25.0 and updates ACME-related dependencies. Wildcard certificate handling now obtains the apex certificate when storage lacks its required files. New tests cover certificate storage, path extraction, DNS-01 records, and apex issuance. ChangesACME apex certificate support
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to The PR explicitly obtains the apex certificate alongside the wildcard while retaining renewal management, addressing the reported certificate-selection failure; no actionable merge-blocking risk remains beyond normal checks. Sequence Diagram(s)sequenceDiagram
participant HandleWildcardCertificates
participant obtainApexCertIfMissing
participant certmagicStorage
HandleWildcardCertificates->>obtainApexCertIfMissing: ensure apex certificate
obtainApexCertIfMissing->>certmagicStorage: check certificate files and metadata
certmagicStorage-->>obtainApexCertIfMissing: return certificate presence
obtainApexCertIfMissing->>obtainApexCertIfMissing: obtain certificate when absent
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In `@go.mod`:
- Line 139: Update the indirect golang.org/x/crypto dependency from v0.50.0 to a
release that resolves all applicable ssh and ssh/agent advisories, and refresh
the dependency lock data consistently. If upgrading is not possible, verify and
document that affected packages are unreachable from shipped binaries.
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go.modpkg/server/acme/acme_certbot.gopkg/server/acme/acme_certbot_test.go
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@dwisiswant0 — quick heads-up on CI for this PR. The Lint Test failure here is a toolchain mismatch (golangci-lint v1 cannot lint Go 1.25), not an issue with the ACME changes themselves. I've opened a follow-up PR to fix that on
Suggested merge order:
Build and release tests already pass on this branch; only lint is blocked pending the CI upgrade. Would appreciate a look at #1420 as well — CI on that PR is currently waiting for workflow approval on the fork. Thanks! |
Migrate the lint workflow to golangci-lint v2.4.0 with a pinned version and explicit config, and resolve pre-existing findings so CI passes on current main. Intended to merge before the Go 1.25 ACME fix in projectdiscovery#1419. Co-authored-by: Cursor <cursoragent@cursor.com>
* chore(ci): upgrade golangci-lint to v2 and fix lint baseline Migrate the lint workflow to golangci-lint v2.4.0 with a pinned version and explicit config, and resolve pre-existing findings so CI passes on current main. Intended to merge before the Go 1.25 ACME fix in #1419. Co-authored-by: Cursor <cursoragent@cursor.com> * chore: add doc comments for CodeRabbit coverage threshold Document touched test helpers and functions so docstring coverage meets the 80% pre-merge check on #1420. Co-authored-by: Cursor <cursoragent@cursor.com> * ci: use composite actions Signed-off-by: Dwi Siswanto <git@dw1.io> --------- Signed-off-by: Dwi Siswanto <git@dw1.io> Co-authored-by: Cursor <cursoragent@cursor.com> Co-authored-by: Dwi Siswanto <git@dw1.io>
When -wildcard is set, apex cert issuance is delegated to ManageSync after ObtainCertSync runs for the wildcard. ManageSync intermittently fails with "order pending, authorizations remaining" from Let's Encrypt: both the wildcard and apex DNS-01 challenges share the same _acme-challenge TXT record, and the back-to-back ACME order finalizations occasionally race in Let's Encrypt's backend. Extract obtainApexCertIfMissing and call it explicitly after the wildcard is obtained, mirroring the ObtainCertSync flow. This makes apex cert provisioning deterministic regardless of Let's Encrypt backend timing. ManageSync is kept for ongoing renewal management. The function is injectable to allow unit testing without a real ACME server. Also bump github.com/caddyserver/certmagic from v0.25.0 to v0.25.3 for upstream bug fixes (lock contention, logging, IPv6 normalization).
Add doc comments to makeRecords and createFakeCert test helpers to meet the 80% docstring coverage threshold. Bump golang.org/x/crypto from v0.50.0 to v0.55.0 to resolve known SSH package advisories flagged during review. Transitive x/ dependencies updated consistently.
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@coderabbitai create and issue to track this, make it short, one paragraph, must be bug oriented. read this PR body for the context. |
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Tip For best results, initiate chat on the files or code changes. 🧩 Analysis chain🏁 Script executed: #!/bin/bash
set -euo pipefail
repo="projectdiscovery/interactsh"
pr_number="1419"
pr_json=$(gh pr view "$pr_number" --repo "$repo" --json url,body)
pr_url=$(jq -r '.url' <<<"$pr_json")
pr_body=$(jq -r '.body' <<<"$pr_json")
comment_url=$(gh api "repos/$repo/issues/$pr_number/comments?per_page=100" \
--jq '.[] | select(.user.login == "dwisiswant0" and (.body | contains("create and issue to track this"))) | .html_url' \
| tail -n 1)
if [[ -z "$comment_url" ]]; then
echo "Could not find the requester comment URL." >&2
exit 1
fi
body=$(cat <<EOF
Bug: Lint CI fails after this PR updates the module to Go 1.25 because the current golangci-lint v1 toolchain does not support Go 1.25. Upgrade and pin lint CI to golangci-lint v2, then restore a passing lint check for the ACME wildcard and apex certificate provisioning changes. Context: $pr_url. Request: $comment_url. PR body: ${pr_body//$'\n'/ }
EOF
)
gh issue create \
--repo "$repo" \
--title "Bug: Update lint CI for Go 1.25 support" \
--assignee "dwisiswant0" \
--body "$body"Length of output: 1252
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@coderabbitai wrong context. read this PR body. update #1421. |
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Tip For best results, initiate chat on the files or code changes. 🧩 Analysis chain🏁 Script executed: #!/bin/bash
set -euo pipefail
repo="projectdiscovery/interactsh"
printf '%s\n' '=== PR `#1419` ==='
gh pr view 1419 --repo "$repo" --json url,title,body --jq '{url, title, body}'
printf '%s\n' '=== Issue `#1421` ==='
gh issue view 1421 --repo "$repo" --json url,title,body,assignees --jq '{url, title, body, assignees: [.assignees[].login]}'Length of output: 7125 🏁 Script executed: #!/bin/bash
set -euo pipefail
repo="projectdiscovery/interactsh"
issue_number="1421"
pr_url="https://github.com/projectdiscovery/interactsh/pull/1419"
comment_url="https://github.com/projectdiscovery/interactsh/pull/1419#issuecomment-5609653993"
body=$(cat <<EOF
Bug: Wildcard certificate setup can intermittently leave the apex certificate unprovisioned. Wildcard and apex DNS-01 orders share `_acme-challenge`; after wildcard issuance, `ManageSync` can race ACME authorization completion for the apex. The TLS server then falls back to the wildcard certificate for the apex host, causing apex TLS validation to fail. Explicitly obtain the apex certificate after wildcard issuance when `certAlreadyExists` reports it missing, and retain `ManageSync` for renewal. Context: $pr_url. Request: $comment_url.
EOF
)
gh issue edit "$issue_number" \
--repo "$repo" \
--title "Bug: Apex certificate intermittently missing with wildcard certificates" \
--body "$body"
gh issue view "$issue_number" --repo "$repo" --json url,title,body,assignees \
--jq '{url, title, body, assignees: [.assignees[].login]}'Length of output: 2469 🏁 Script executed: #!/bin/bash
set -euo pipefail
repo="projectdiscovery/interactsh"
issue_number="1421"
body=$(cat <<'EOF'
Bug: Wildcard certificate setup can intermittently leave the apex certificate unprovisioned. Wildcard and apex DNS-01 orders share `_acme-challenge`; after wildcard issuance, `ManageSync` can race ACME authorization completion for the apex. The TLS server then falls back to the wildcard certificate for the apex host, causing apex TLS validation to fail. Explicitly obtain the apex certificate after wildcard issuance when `certAlreadyExists` reports it missing, and retain `ManageSync` for renewal. Context: https://github.com/projectdiscovery/interactsh/pull/1419. Request: https://github.com/projectdiscovery/interactsh/pull/1419#issuecomment-5609653993.
EOF
)
gh issue edit "$issue_number" \
--repo "$repo" \
--body "$body"
gh issue view "$issue_number" --repo "$repo" --json url,title,body,assignees \
--jq '{url, title, body, assignees: [.assignees[].login]}'Length of output: 2025
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2 participants
HandleWildcardCertificatescallsObtainCertSyncfor*.domainand then passes both the wildcard and the apex toManageSyncfor the apex cert. This works most of the time but intermittently fails with:When it fails, the cert loading loop falls back to the
wildcard_.domainstorage key for both SNI slots, so the TLS server ends up serving*.domainfor all connections.curl https://domainthen fails withno alternative certificate subject name matches target host name 'domain', whilecurl https://id.domaincontinues to work.The intermittency comes from the DNS-01 challenge: both the wildcard and the apex use the same
_acme-challengeTXT record. AfterObtainCertSynccompletes for the wildcard and the record is cleaned up, the subsequentManageSyncorder for the apex occasionally races Let's Encrypt's backend, which returns the order as still pending even though the authorization was marked valid.The fix calls
ObtainCertSyncfor the apex explicitly after the wildcard succeeds, mirroring the existing pattern rather than relying onManageSyncfor initial issuance. The call is guarded bycertAlreadyExistsso restarts that already have both certs cached skip it.ManageSyncis kept for ongoing renewal.The new
obtainApexCertIfMissingfunction takes the obtain callback as a parameter so it can be exercised in unit tests without a real ACME server. The test commit precedes the fix commit so the failure is reproducible:go test ./pkg/server/acme/...fails to compile on the test-only commit (obtainApexCertIfMissing: undefined), then passes once the fix is applied.Also bumps
github.com/caddyserver/certmagicfrom v0.25.0 to v0.25.3 for upstream fixes (lock contention, logging, IPv6 normalization).Summary by CodeRabbit
Bug Fixes
Maintenance
CI note: Lint Test is blocked by golangci-lint v1 vs Go 1.25. See follow-up PR #1420 (merge first, then rebase this branch).