From 394a2278773d739d4e3a4fd2f92acec85088ba12 Mon Sep 17 00:00:00 2001 From: Mathias Date: Tue, 7 Jul 2026 22:00:56 +0200 Subject: [PATCH] feat(webhook): trigger brain-sync on Gitea push instead of 15-min poll Adds POST /webhooks/brain-sync: verifies Gitea's HMAC-SHA256 signature, checks the push is to mathias/brain main, then creates a one-off Job from the existing brain-sync CronJob's template (same script the 15-min poll already runs, just triggered on-demand). Off by default -- opt in via GITEA_WEBHOOK_SECRET, since it needs Job-create RBAC in the "brain" namespace a fresh deploy won't have. 10 new tests (internal/webhook), including a fake-clientset reactor to simulate server-side GenerateName expansion, which the plain fake tracker doesn't do on its own. Needs (follow-up, infra repo): RBAC granting ingestion's ServiceAccount get on cronjobs/brain-sync + create on jobs in the brain namespace, the GITEA_WEBHOOK_SECRET env, and the actual Gitea webhook registration. --- ingestion/cmd/server/main.go | 45 +++++ ingestion/go.mod | 48 ++++- ingestion/go.sum | 139 ++++++++++++- ingestion/internal/webhook/webhook.go | 109 ++++++++++ ingestion/internal/webhook/webhook_test.go | 222 +++++++++++++++++++++ 5 files changed, 555 insertions(+), 8 deletions(-) create mode 100644 ingestion/internal/webhook/webhook.go create mode 100644 ingestion/internal/webhook/webhook_test.go diff --git a/ingestion/cmd/server/main.go b/ingestion/cmd/server/main.go index ada5345..9a3b2b7 100644 --- a/ingestion/cmd/server/main.go +++ b/ingestion/cmd/server/main.go @@ -34,8 +34,27 @@ import ( "github.com/mathiasbq/hyperguild/ingestion/internal/search" "github.com/mathiasbq/hyperguild/ingestion/internal/vectorstore" "github.com/mathiasbq/hyperguild/ingestion/internal/watcher" + "github.com/mathiasbq/hyperguild/ingestion/internal/webhook" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/rest" + "k8s.io/client-go/tools/clientcmd" ) +// kubeClient builds an in-cluster Kubernetes client (falls back to +// $KUBECONFIG for local dev/testing against a real cluster). +func kubeClient() (kubernetes.Interface, error) { + if cfg, err := rest.InClusterConfig(); err == nil { + return kubernetes.NewForConfig(cfg) + } + rules := clientcmd.NewDefaultClientConfigLoadingRules() + cc := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(rules, &clientcmd.ConfigOverrides{}) + cfg, err := cc.ClientConfig() + if err != nil { + return nil, fmt.Errorf("kube config (no in-cluster, no kubeconfig): %w", err) + } + return kubernetes.NewForConfig(cfg) +} + // claudeSink converts each claudewatcher.Batch into a raw session dump // under brain/archive/claude-sessions//. Deliberately NOT a wiki // note (api.WriteNote / brain/wiki/) — raw full transcripts out-ranked @@ -352,6 +371,29 @@ func main() { logger.Info("claudewatcher started", "sessions_dir", claudeDir, "host", host, "interval", interval) } + + // Gitea push webhook -> on-demand brain-sync Job, instead of waiting up + // to 15 minutes for the next CronJob poll. Off by default (opt in via + // GITEA_WEBHOOK_SECRET) since it needs Job-create RBAC in the "brain" + // namespace that a fresh deploy won't have granted yet. + var webhookHandler *webhook.Handler + if webhookSecret := os.Getenv("GITEA_WEBHOOK_SECRET"); webhookSecret != "" { + kc, err := kubeClient() + if err != nil { + logger.Error("brain-sync webhook: kube client", "err", err) + os.Exit(1) + } + webhookHandler = &webhook.Handler{ + Secret: webhookSecret, + Clientset: kc, + Namespace: envOr("BRAIN_SYNC_NAMESPACE", "brain"), + CronJobName: envOr("BRAIN_SYNC_CRONJOB", "brain-sync"), + WatchRepo: envOr("BRAIN_SYNC_WATCH_REPO", "mathias/brain"), + Logger: logger, + } + logger.Info("brain-sync webhook enabled", "namespace", webhookHandler.Namespace, "cronjob", webhookHandler.CronJobName) + } + if vectorStore != nil { embedSyncInterval := envInt("BRAIN_EMBED_SYNC_INTERVAL", 300) vectorstore.StartSync(ctx, brainDir, vectorStore, @@ -373,6 +415,9 @@ func main() { mux.HandleFunc("POST /promote", h.Promote) mux.HandleFunc("POST /backfill-embeddings", h.BackfillEmbeddings) mux.HandleFunc("GET /pass-rate", h.PassRate) + if webhookHandler != nil { + mux.Handle("POST /webhooks/brain-sync", webhookHandler) + } jwtValidator, err := chassisauth.NewJWTValidator(ctx, os.Getenv("DEX_ISSUER_URL"), os.Getenv("MCP_AUDIENCE")) if err != nil { logger.Error("build jwt validator", "err", err) diff --git a/ingestion/go.mod b/ingestion/go.mod index 0cead41..edd9b46 100644 --- a/ingestion/go.mod +++ b/ingestion/go.mod @@ -2,17 +2,57 @@ module github.com/mathiasbq/hyperguild/ingestion go 1.26.1 -require github.com/stretchr/testify v1.11.1 +require ( + github.com/stretchr/testify v1.11.1 + k8s.io/api v0.31.3 + k8s.io/apimachinery v0.31.3 + k8s.io/client-go v0.31.3 +) require ( - github.com/kr/text v0.2.0 // indirect + github.com/emicklei/go-restful/v3 v3.11.0 // indirect + github.com/fxamacker/cbor/v2 v2.7.0 // indirect + github.com/go-logr/logr v1.4.2 // indirect + github.com/go-openapi/jsonpointer v0.19.6 // indirect + github.com/go-openapi/jsonreference v0.20.2 // indirect + github.com/go-openapi/swag v0.22.4 // indirect + github.com/gogo/protobuf v1.3.2 // indirect + github.com/golang/protobuf v1.5.4 // indirect + github.com/google/gnostic-models v0.6.8 // indirect + github.com/google/go-cmp v0.6.0 // indirect + github.com/google/gofuzz v1.2.0 // indirect + github.com/google/uuid v1.6.0 // indirect + github.com/imdario/mergo v0.3.6 // indirect + github.com/josharian/intern v1.0.0 // indirect + github.com/json-iterator/go v1.1.12 // indirect github.com/lestrrat-go/jwx/v2 v2.1.6 // indirect + github.com/mailru/easyjson v0.7.7 // indirect + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect + github.com/modern-go/reflect2 v1.0.2 // indirect + github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect + github.com/pkg/errors v0.9.1 // indirect github.com/rogpeppe/go-internal v1.15.0 // indirect + github.com/spf13/pflag v1.0.5 // indirect + github.com/x448/float16 v0.8.4 // indirect + golang.org/x/net v0.26.0 // indirect + golang.org/x/oauth2 v0.21.0 // indirect + golang.org/x/term v0.28.0 // indirect + golang.org/x/time v0.3.0 // indirect + google.golang.org/protobuf v1.34.2 // indirect + gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect + gopkg.in/inf.v0 v0.9.1 // indirect + gopkg.in/yaml.v2 v2.4.0 // indirect + k8s.io/klog/v2 v2.130.1 // indirect + k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 // indirect + k8s.io/utils v0.0.0-20240711033017-18e509b52bc8 // indirect + sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect + sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect + sigs.k8s.io/yaml v1.4.0 // indirect ) require ( git.d-ma.be/mathias/mcp-chassis v0.2.0 - github.com/davecgh/go-spew v1.1.1 // indirect + github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 // indirect github.com/goccy/go-json v0.10.3 // indirect github.com/jackc/pgpassfile v1.0.0 // indirect @@ -24,7 +64,7 @@ require ( github.com/lestrrat-go/httprc v1.0.6 // indirect github.com/lestrrat-go/iter v1.0.2 // indirect github.com/lestrrat-go/option v1.0.1 // indirect - github.com/pmezard/go-difflib v1.0.0 // indirect + github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect github.com/segmentio/asm v1.2.0 // indirect golang.org/x/crypto v0.32.0 // indirect golang.org/x/sync v0.17.0 // indirect diff --git a/ingestion/go.sum b/ingestion/go.sum index d263e3f..88aea44 100644 --- a/ingestion/go.sum +++ b/ingestion/go.sum @@ -2,12 +2,46 @@ git.d-ma.be/mathias/mcp-chassis v0.2.0 h1:6fLmb7xqRa2nNVWsHaUbbfbArgDXJw/gDhb09c git.d-ma.be/mathias/mcp-chassis v0.2.0/go.mod h1:Ks7EK2UnGAN0H3rJjKUxUagX8/ZBdtLrOlcUbv0RwH8= github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= -github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM= +github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 h1:NMZiJj8QnKe1LgsbDayM4UoHwbvwDRwnI3hwNaAHRnc= github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0/go.mod h1:ZXNYxsqcloTdSy/rNShjYzMhyjf0LaoftYK0p+A3h40= +github.com/emicklei/go-restful/v3 v3.11.0 h1:rAQeMHw1c7zTmncogyy8VvRZwtkmkZ4FxERmMY4rD+g= +github.com/emicklei/go-restful/v3 v3.11.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc= +github.com/fxamacker/cbor/v2 v2.7.0 h1:iM5WgngdRBanHcxugY4JySA0nk1wZorNOpTgCMedv5E= +github.com/fxamacker/cbor/v2 v2.7.0/go.mod h1:pxXPTn3joSm21Gbwsv0w9OSA2y1HFR9qXEeXQVeNoDQ= +github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY= +github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY= +github.com/go-openapi/jsonpointer v0.19.6 h1:eCs3fxoIi3Wh6vtgmLTOjdhSpiqphQ+DaPn38N2ZdrE= +github.com/go-openapi/jsonpointer v0.19.6/go.mod h1:osyAmYz/mB/C3I+WsTTSgw1ONzaLJoLCyoi6/zppojs= +github.com/go-openapi/jsonreference v0.20.2 h1:3sVjiK66+uXK/6oQ8xgcRKcFgQ5KXa2KvnJRumpMGbE= +github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En5Ap4rVB5KVcIDZG2k= +github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14= +github.com/go-openapi/swag v0.22.4 h1:QLMzNJnMGPRNDCbySlcj1x01tzU8/9LTTL9hZZZogBU= +github.com/go-openapi/swag v0.22.4/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14= +github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI= +github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8= github.com/goccy/go-json v0.10.3 h1:KZ5WoDbxAIgm2HNbYckL0se1fHD6rz5j4ywS6ebzDqA= github.com/goccy/go-json v0.10.3/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M= +github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q= +github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q= +github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek= +github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps= +github.com/google/gnostic-models v0.6.8 h1:yo/ABAfM5IMRsS1VnXjTBvUb61tFIHozhlYvRgGre9I= +github.com/google/gnostic-models v0.6.8/go.mod h1:5n7qKqH0f5wFt+aWF8CW6pZLLNOfYuF5OpfBSENuI8U= +github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= +github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= +github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= +github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= +github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0= +github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= +github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af h1:kmjWCqn2qkEml422C2Rrd27c3VGxi6a/6HNq8QmHRKM= +github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af/go.mod h1:K1liHPHnj73Fdn/EKuT8nrFqBihUSKXoLYU0BuatOYo= +github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0= +github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/imdario/mergo v0.3.6 h1:xTNEAn+kxVO7dTZGu0CegyqKZmoWFI0rF8UxjlB2d28= +github.com/imdario/mergo v0.3.6/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA= github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM= github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg= github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo= @@ -16,8 +50,17 @@ github.com/jackc/pgx/v5 v5.9.2 h1:3ZhOzMWnR4yJ+RW1XImIPsD1aNSz4T4fyP7zlQb56hw= github.com/jackc/pgx/v5 v5.9.2/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4= github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo= github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4= -github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0= -github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk= +github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY= +github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y= +github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM= +github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo= +github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8= +github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= +github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI= +github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE= +github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk= +github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= +github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY= github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE= github.com/lestrrat-go/blackmagic v1.0.3 h1:94HXkVLxkZO9vJI/w2u1T0DAoprShFd13xtnSINtDWs= @@ -32,30 +75,118 @@ github.com/lestrrat-go/jwx/v2 v2.1.6 h1:hxM1gfDILk/l5ylers6BX/Eq1m/pnxe9NBwW6lVf github.com/lestrrat-go/jwx/v2 v2.1.6/go.mod 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a/ingestion/internal/webhook/webhook.go b/ingestion/internal/webhook/webhook.go new file mode 100644 index 0000000..a3df62e --- /dev/null +++ b/ingestion/internal/webhook/webhook.go @@ -0,0 +1,109 @@ +// Package webhook triggers an on-demand brain-sync Job when Gitea pushes to +// mathias/brain, instead of waiting for the next 15-minute CronJob poll. +package webhook + +import ( + "context" + "crypto/hmac" + "crypto/sha256" + "encoding/hex" + "encoding/json" + "fmt" + "io" + "log/slog" + "net/http" + + batchv1 "k8s.io/api/batch/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/kubernetes" +) + +// VerifySignature checks a Gitea webhook's X-Gitea-Signature header: a +// hex-encoded HMAC-SHA256 of the raw request body, keyed by the shared +// webhook secret. Constant-time compare — timing must not leak how much of +// the signature matched. +func VerifySignature(payload []byte, signatureHeader, secret string) bool { + if signatureHeader == "" { + return false + } + mac := hmac.New(sha256.New, []byte(secret)) + mac.Write(payload) + expected := hex.EncodeToString(mac.Sum(nil)) + return hmac.Equal([]byte(expected), []byte(signatureHeader)) +} + +// pushEvent is the subset of Gitea's push webhook payload this handler needs. +type pushEvent struct { + Ref string `json:"ref"` + Repo struct { + FullName string `json:"full_name"` + } `json:"repository"` +} + +// TriggerJobFromCronJob reads the named CronJob's job template and creates a +// new, uniquely-named Job from it — the same thing `kubectl create job +// --from=cronjob/` does. Reuses the CronJob's already-tested script +// rather than re-implementing sync logic here. +func TriggerJobFromCronJob(ctx context.Context, cs kubernetes.Interface, namespace, cronJobName string) (string, error) { + cj, err := cs.BatchV1().CronJobs(namespace).Get(ctx, cronJobName, metav1.GetOptions{}) + if err != nil { + return "", fmt.Errorf("get cronjob %s/%s: %w", namespace, cronJobName, err) + } + job := &batchv1.Job{ + ObjectMeta: metav1.ObjectMeta{ + GenerateName: cronJobName + "-webhook-", + Namespace: namespace, + Annotations: map[string]string{ + "triggered-by": "brain-webhook", + }, + }, + Spec: cj.Spec.JobTemplate.Spec, + } + created, err := cs.BatchV1().Jobs(namespace).Create(ctx, job, metav1.CreateOptions{}) + if err != nil { + return "", fmt.Errorf("create job from cronjob %s/%s: %w", namespace, cronJobName, err) + } + return created.Name, nil +} + +// Handler is the HTTP handler for Gitea's push webhook on mathias/brain. +type Handler struct { + Secret string + Clientset kubernetes.Interface + Namespace string // e.g. "brain" + CronJobName string // e.g. "brain-sync" + WatchRepo string // e.g. "mathias/brain" + Logger *slog.Logger +} + +func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) { + body, err := io.ReadAll(r.Body) + if err != nil { + http.Error(w, "bad body", http.StatusBadRequest) + return + } + sig := r.Header.Get("X-Gitea-Signature") + if !VerifySignature(body, sig, h.Secret) { + http.Error(w, "bad signature", http.StatusUnauthorized) + return + } + var ev pushEvent + if err := json.Unmarshal(body, &ev); err != nil { + http.Error(w, "bad payload", http.StatusBadRequest) + return + } + if ev.Repo.FullName != h.WatchRepo || ev.Ref != "refs/heads/main" { + w.WriteHeader(http.StatusOK) + fmt.Fprintf(w, "ignored: repo=%s ref=%s", ev.Repo.FullName, ev.Ref) + return + } + jobName, err := TriggerJobFromCronJob(r.Context(), h.Clientset, h.Namespace, h.CronJobName) + if err != nil { + h.Logger.Error("webhook: trigger job failed", "err", err) + http.Error(w, "trigger failed", http.StatusInternalServerError) + return + } + h.Logger.Info("webhook: triggered brain-sync job", "job", jobName) + w.WriteHeader(http.StatusOK) + fmt.Fprintf(w, "triggered %s", jobName) +} diff --git a/ingestion/internal/webhook/webhook_test.go b/ingestion/internal/webhook/webhook_test.go new file mode 100644 index 0000000..0075107 --- /dev/null +++ b/ingestion/internal/webhook/webhook_test.go @@ -0,0 +1,222 @@ +package webhook + +import ( + "bytes" + "context" + "crypto/hmac" + "crypto/sha256" + "encoding/hex" + "encoding/json" + "log/slog" + "net/http" + "net/http/httptest" + "os" + "testing" + + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" + batchv1 "k8s.io/api/batch/v1" + corev1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/apimachinery/pkg/runtime" + "k8s.io/client-go/kubernetes/fake" + k8stesting "k8s.io/client-go/testing" +) + +// newFakeClientset simulates the real API server's GenerateName expansion, +// which the plain fake clientset tracker does not do on its own -- without +// this, every created Job keeps an empty Name (a fake-clientset limitation, +// not real API server behavior). +func newFakeClientset(objects ...runtime.Object) *fake.Clientset { + cs := fake.NewSimpleClientset(objects...) + cs.PrependReactor("create", "jobs", func(action k8stesting.Action) (bool, runtime.Object, error) { + createAction := action.(k8stesting.CreateAction) + job, ok := createAction.GetObject().(*batchv1.Job) + if ok && job.Name == "" && job.GenerateName != "" { + job.Name = job.GenerateName + "test0001" + } + return false, nil, nil // not "handled" -- let the default reactor store it + }) + return cs +} + +func sign(t *testing.T, payload []byte, secret string) string { + t.Helper() + mac := hmac.New(sha256.New, []byte(secret)) + mac.Write(payload) + return hex.EncodeToString(mac.Sum(nil)) +} + +func testLogger() *slog.Logger { + return slog.New(slog.NewTextHandler(os.Stderr, nil)) +} + +func fakeCronJob(namespace, name string) *batchv1.CronJob { + return &batchv1.CronJob{ + ObjectMeta: metav1.ObjectMeta{Name: name, Namespace: namespace}, + Spec: batchv1.CronJobSpec{ + JobTemplate: batchv1.JobTemplateSpec{ + Spec: batchv1.JobSpec{ + Template: corev1.PodTemplateSpec{ + Spec: corev1.PodSpec{ + Containers: []corev1.Container{ + {Name: "sync", Image: "alpine/git:v2.47.2"}, + }, + RestartPolicy: corev1.RestartPolicyNever, + }, + }, + }, + }, + }, + } +} + +// --------------------------------------------------------------------------- # +// VerifySignature +// --------------------------------------------------------------------------- # +func TestVerifySignature_AcceptsCorrectHMAC(t *testing.T) { + payload := []byte(`{"ref":"refs/heads/main"}`) + secret := "s3cret" + sig := sign(t, payload, secret) + assert.True(t, VerifySignature(payload, sig, secret)) +} + +func TestVerifySignature_RejectsWrongSecret(t *testing.T) { + payload := []byte(`{"ref":"refs/heads/main"}`) + sig := sign(t, payload, "right-secret") + assert.False(t, VerifySignature(payload, sig, "wrong-secret")) +} + +func TestVerifySignature_RejectsTamperedPayload(t *testing.T) { + secret := "s3cret" + sig := sign(t, []byte(`{"ref":"refs/heads/main"}`), secret) + assert.False(t, VerifySignature([]byte(`{"ref":"refs/heads/evil"}`), sig, secret)) +} + +func TestVerifySignature_RejectsEmptySignature(t *testing.T) { + assert.False(t, VerifySignature([]byte("payload"), "", "secret")) +} + +// --------------------------------------------------------------------------- # +// TriggerJobFromCronJob +// --------------------------------------------------------------------------- # +func TestTriggerJobFromCronJob_CreatesJobMatchingTemplate(t *testing.T) { + cs := newFakeClientset(fakeCronJob("brain", "brain-sync")) + + jobName, err := TriggerJobFromCronJob(context.Background(), cs, "brain", "brain-sync") + require.NoError(t, err) + assert.NotEmpty(t, jobName) + + jobs, err := cs.BatchV1().Jobs("brain").List(context.Background(), metav1.ListOptions{}) + require.NoError(t, err) + require.Len(t, jobs.Items, 1) + assert.Equal(t, "alpine/git:v2.47.2", jobs.Items[0].Spec.Template.Spec.Containers[0].Image) +} + +func TestTriggerJobFromCronJob_ErrorsWhenCronJobMissing(t *testing.T) { + cs := fake.NewSimpleClientset() + _, err := TriggerJobFromCronJob(context.Background(), cs, "brain", "brain-sync") + assert.Error(t, err) +} + +// --------------------------------------------------------------------------- # +// Handler.ServeHTTP +// --------------------------------------------------------------------------- # +func newTestHandler(cs *fake.Clientset) *Handler { + return &Handler{ + Secret: "s3cret", + Clientset: cs, + Namespace: "brain", + CronJobName: "brain-sync", + WatchRepo: "mathias/brain", + Logger: testLogger(), + } +} + +func pushPayload(t *testing.T, repo, ref string) []byte { + t.Helper() + body := map[string]any{ + "ref": ref, + "repository": map[string]any{ + "full_name": repo, + }, + } + b, err := json.Marshal(body) + require.NoError(t, err) + return b +} + +func TestHandler_RejectsMissingSignature(t *testing.T) { + cs := fake.NewSimpleClientset(fakeCronJob("brain", "brain-sync")) + h := newTestHandler(cs) + payload := pushPayload(t, "mathias/brain", "refs/heads/main") + req := httptest.NewRequest(http.MethodPost, "/webhooks/brain-sync", bytes.NewReader(payload)) + rec := httptest.NewRecorder() + + h.ServeHTTP(rec, req) + + assert.Equal(t, http.StatusUnauthorized, rec.Code) + jobs, _ := cs.BatchV1().Jobs("brain").List(context.Background(), metav1.ListOptions{}) + assert.Empty(t, jobs.Items, "must not trigger a job on an unsigned request") +} + +func TestHandler_RejectsWrongSignature(t *testing.T) { + cs := fake.NewSimpleClientset(fakeCronJob("brain", "brain-sync")) + h := newTestHandler(cs) + payload := pushPayload(t, "mathias/brain", "refs/heads/main") + req := httptest.NewRequest(http.MethodPost, "/webhooks/brain-sync", bytes.NewReader(payload)) + req.Header.Set("X-Gitea-Signature", sign(t, payload, "not-the-real-secret")) + rec := httptest.NewRecorder() + + h.ServeHTTP(rec, req) + + assert.Equal(t, http.StatusUnauthorized, rec.Code) + jobs, _ := cs.BatchV1().Jobs("brain").List(context.Background(), metav1.ListOptions{}) + assert.Empty(t, jobs.Items) +} + +func TestHandler_IgnoresOtherRepos(t *testing.T) { + cs := fake.NewSimpleClientset(fakeCronJob("brain", "brain-sync")) + h := newTestHandler(cs) + payload := pushPayload(t, "mathias/some-other-repo", "refs/heads/main") + req := httptest.NewRequest(http.MethodPost, "/webhooks/brain-sync", bytes.NewReader(payload)) + req.Header.Set("X-Gitea-Signature", sign(t, payload, "s3cret")) + rec := httptest.NewRecorder() + + h.ServeHTTP(rec, req) + + assert.Equal(t, http.StatusOK, rec.Code) + jobs, _ := cs.BatchV1().Jobs("brain").List(context.Background(), metav1.ListOptions{}) + assert.Empty(t, jobs.Items, "must not trigger for a push to an unrelated repo") +} + +func TestHandler_IgnoresNonMainBranch(t *testing.T) { + cs := fake.NewSimpleClientset(fakeCronJob("brain", "brain-sync")) + h := newTestHandler(cs) + payload := pushPayload(t, "mathias/brain", "refs/heads/some-feature-branch") + req := httptest.NewRequest(http.MethodPost, "/webhooks/brain-sync", bytes.NewReader(payload)) + req.Header.Set("X-Gitea-Signature", sign(t, payload, "s3cret")) + rec := httptest.NewRecorder() + + h.ServeHTTP(rec, req) + + assert.Equal(t, http.StatusOK, rec.Code) + jobs, _ := cs.BatchV1().Jobs("brain").List(context.Background(), metav1.ListOptions{}) + assert.Empty(t, jobs.Items, "must not trigger for a push to a non-main branch") +} + +func TestHandler_TriggersJobOnValidMainPush(t *testing.T) { + cs := fake.NewSimpleClientset(fakeCronJob("brain", "brain-sync")) + h := newTestHandler(cs) + payload := pushPayload(t, "mathias/brain", "refs/heads/main") + req := httptest.NewRequest(http.MethodPost, "/webhooks/brain-sync", bytes.NewReader(payload)) + req.Header.Set("X-Gitea-Signature", sign(t, payload, "s3cret")) + rec := httptest.NewRecorder() + + h.ServeHTTP(rec, req) + + assert.Equal(t, http.StatusOK, rec.Code) + jobs, err := cs.BatchV1().Jobs("brain").List(context.Background(), metav1.ListOptions{}) + require.NoError(t, err) + assert.Len(t, jobs.Items, 1, "a valid push to main on the watched repo must trigger exactly one job") +}