14262: Add createAPIToken, with test

[arvados.git] / lib / controller / federation.go

diff --git a/lib/controller/federation.go b/lib/controller/federation.go
index 03d2f3fabb4db924503ed8197a1ea119349930a1..18f3e4479ed1e6097bee8642bf633f52253ce4b7 100644 (file)
--- a/lib/controller/federation.go
+++ b/lib/controller/federation.go
@@ -7,6 +7,7 @@ package controller
 import (
        "bytes"
        "database/sql"
+       "encoding/json"
        "fmt"
        "io"
        "io/ioutil"
@@ -17,6 +18,7 @@ import (
 
        "git.curoverse.com/arvados.git/sdk/go/arvados"
        "git.curoverse.com/arvados.git/sdk/go/auth"
+       "github.com/jmcvetta/randutil"
 )
 
 var pathPattern = `^/arvados/v1/%s(/([0-9a-z]{5})-%s-[0-9a-z]{15})?(.*)$`
@@ -82,12 +84,18 @@ func loadParamsFromForm(req *http.Request) error {
 
 func (h *Handler) setupProxyRemoteCluster(next http.Handler) http.Handler {
        mux := http.NewServeMux()
-       mux.Handle("/arvados/v1/workflows", &genericFederatedRequestHandler{next, h, wfRe})
-       mux.Handle("/arvados/v1/workflows/", &genericFederatedRequestHandler{next, h, wfRe})
-       mux.Handle("/arvados/v1/containers", &genericFederatedRequestHandler{next, h, containersRe})
-       mux.Handle("/arvados/v1/containers/", &genericFederatedRequestHandler{next, h, containersRe})
-       mux.Handle("/arvados/v1/container_requests", &genericFederatedRequestHandler{next, h, containerRequestsRe})
-       mux.Handle("/arvados/v1/container_requests/", &genericFederatedRequestHandler{next, h, containerRequestsRe})
+
+       wfHandler := &genericFederatedRequestHandler{next, h, wfRe, nil}
+       containersHandler := &genericFederatedRequestHandler{next, h, containersRe, nil}
+       containerRequestsHandler := &genericFederatedRequestHandler{next, h, containerRequestsRe,
+               []federatedRequestDelegate{remoteContainerRequestCreate}}
+
+       mux.Handle("/arvados/v1/workflows", wfHandler)
+       mux.Handle("/arvados/v1/workflows/", wfHandler)
+       mux.Handle("/arvados/v1/containers", containersHandler)
+       mux.Handle("/arvados/v1/containers/", containersHandler)
+       mux.Handle("/arvados/v1/container_requests", containerRequestsHandler)
+       mux.Handle("/arvados/v1/container_requests/", containerRequestsHandler)
        mux.Handle("/arvados/v1/collections", next)
        mux.Handle("/arvados/v1/collections/", &collectionFederatedRequestHandler{next, h})
        mux.Handle("/", next)
@@ -118,12 +126,79 @@ type CurrentUser struct {
        UUID          string
 }
 
-func (h *Handler) validateAPItoken(req *http.Request, user *CurrentUser) error {
+// validateAPItoken extracts the token from the provided http request,
+// checks it again api_client_authorizations table in the database,
+// and fills in the token scope and user UUID.  Does not handle remote
+// tokens unless they are already in the database and not expired.
+func (h *Handler) validateAPItoken(req *http.Request, token string) (*CurrentUser, error) {
+       user := CurrentUser{Authorization: arvados.APIClientAuthorization{APIToken: token}}
        db, err := h.db(req)
        if err != nil {
-               return err
+               return nil, err
+       }
+
+       var uuid string
+       if strings.HasPrefix(token, "v2/") {
+               sp := strings.Split(token, "/")
+               uuid = sp[1]
+               token = sp[2]
+       }
+       user.Authorization.APIToken = token
+       var scopes string
+       err = db.QueryRowContext(req.Context(), `SELECT api_client_authorizations.uuid, api_client_authorizations.scopes, users.uuid FROM api_client_authorizations JOIN users on api_client_authorizations.user_id=users.id WHERE api_token=$1 AND (expires_at IS NULL OR expires_at > current_timestamp) LIMIT 1`, token).Scan(&user.Authorization.UUID, &scopes, &user.UUID)
+       if err != nil {
+               return nil, err
+       }
+       if uuid != "" && user.Authorization.UUID != uuid {
+               return nil, fmt.Errorf("UUID embedded in v2 token did not match record")
+       }
+       err = json.Unmarshal([]byte(scopes), &user.Authorization.Scopes)
+       if err != nil {
+               return nil, err
+       }
+       return &user, nil
+}
+
+func (h *Handler) createAPItoken(req *http.Request, userUUID string, scopes []string) (*arvados.APIClientAuthorization, error) {
+       db, err := h.db(req)
+       if err != nil {
+               return nil, err
+       }
+       rd, err := randutil.String(15, "abcdefghijklmnopqrstuvwxyz0123456789")
+       if err != nil {
+               return nil, err
+       }
+       uuid := fmt.Sprintf("%v-gj3su-%v", h.Cluster.ClusterID, rd)
+       token, err := randutil.String(50, "abcdefghijklmnopqrstuvwxyz0123456789")
+       if err != nil {
+               return nil, err
+       }
+       if len(scopes) == 0 {
+               scopes = append(scopes, "all")
        }
-       return db.QueryRowContext(req.Context(), `SELECT api_client_authorizations.uuid, users.uuid FROM api_client_authorizations JOIN users on api_client_authorizations.user_id=users.id WHERE api_token=$1 AND (expires_at IS NULL OR expires_at > current_timestamp) LIMIT 1`, user.Authorization.APIToken).Scan(&user.Authorization.UUID, &user.UUID)
+       scopesjson, err := json.Marshal(scopes)
+       if err != nil {
+               return nil, err
+       }
+       _, err = db.ExecContext(req.Context(),
+               `INSERT INTO api_client_authorizations
+(uuid, api_token, expires_at, scopes,
+user_id,
+api_client_id, created_at, updated_at)
+VALUES ($1, $2, now() + INTERVAL '2 weeks', $3,
+(SELECT id FROM users WHERE users.uuid=$4 LIMIT 1),
+0, now(), now())`,
+               uuid, token, string(scopesjson), userUUID)
+
+       if err != nil {
+               return nil, err
+       }
+
+       return &arvados.APIClientAuthorization{
+               UUID:      uuid,
+               APIToken:  token,
+               ExpiresAt: "",
+               Scopes:    scopes}, nil
 }
 
 // Extract the auth token supplied in req, and replace it with a
@@ -165,11 +240,10 @@ func (h *Handler) saltAuthToken(req *http.Request, remote string) (updatedReq *h
                // If the token exists in our own database, salt it
                // for the remote. Otherwise, assume it was issued by
                // the remote, and pass it through unmodified.
-               currentUser := CurrentUser{Authorization: arvados.APIClientAuthorization{APIToken: creds.Tokens[0]}}
-               err = h.validateAPItoken(req, &currentUser)
+               currentUser, err := h.validateAPItoken(req, creds.Tokens[0])
                if err == sql.ErrNoRows {
                        // Not ours; pass through unmodified.
-                       token = currentUser.Authorization.APIToken
+                       token = creds.Tokens[0]
                } else if err != nil {
                        return nil, err
                } else {