2960: Refactor keepstore into a streaming server.
[arvados.git] / services / keepstore / handler_test.go
diff --git a/services/keepstore/handler_test.go b/services/keepstore/handler_test.go
deleted file mode 100644 (file)
index ad907ef..0000000
+++ /dev/null
@@ -1,1196 +0,0 @@
-// Copyright (C) The Arvados Authors. All rights reserved.
-//
-// SPDX-License-Identifier: AGPL-3.0
-
-// Tests for Keep HTTP handlers:
-//
-//     GetBlockHandler
-//     PutBlockHandler
-//     IndexHandler
-//
-// The HTTP handlers are responsible for enforcing permission policy,
-// so these tests must exercise all possible permission permutations.
-
-package main
-
-import (
-       "bytes"
-       "context"
-       "encoding/json"
-       "fmt"
-       "net/http"
-       "net/http/httptest"
-       "os"
-       "regexp"
-       "strings"
-       "testing"
-       "time"
-
-       "git.curoverse.com/arvados.git/sdk/go/arvados"
-       "git.curoverse.com/arvados.git/sdk/go/arvadostest"
-       "github.com/prometheus/client_golang/prometheus"
-)
-
-var testCluster = &arvados.Cluster{
-       ClusterID: "zzzzz",
-}
-
-// A RequestTester represents the parameters for an HTTP request to
-// be issued on behalf of a unit test.
-type RequestTester struct {
-       uri         string
-       apiToken    string
-       method      string
-       requestBody []byte
-}
-
-// Test GetBlockHandler on the following situations:
-//   - permissions off, unauthenticated request, unsigned locator
-//   - permissions on, authenticated request, signed locator
-//   - permissions on, authenticated request, unsigned locator
-//   - permissions on, unauthenticated request, signed locator
-//   - permissions on, authenticated request, expired locator
-//   - permissions on, authenticated request, signed locator, transient error from backend
-//
-func TestGetHandler(t *testing.T) {
-       defer teardown()
-
-       // Prepare two test Keep volumes. Our block is stored on the second volume.
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-
-       vols := KeepVM.AllWritable()
-       if err := vols[0].Put(context.Background(), TestHash, TestBlock); err != nil {
-               t.Error(err)
-       }
-
-       // Create locators for testing.
-       // Turn on permission settings so we can generate signed locators.
-       theConfig.RequireSignatures = true
-       theConfig.blobSigningKey = []byte(knownKey)
-       theConfig.BlobSignatureTTL.Set("5m")
-
-       var (
-               unsignedLocator  = "/" + TestHash
-               validTimestamp   = time.Now().Add(theConfig.BlobSignatureTTL.Duration())
-               expiredTimestamp = time.Now().Add(-time.Hour)
-               signedLocator    = "/" + SignLocator(TestHash, knownToken, validTimestamp)
-               expiredLocator   = "/" + SignLocator(TestHash, knownToken, expiredTimestamp)
-       )
-
-       // -----------------
-       // Test unauthenticated request with permissions off.
-       theConfig.RequireSignatures = false
-
-       // Unauthenticated request, unsigned locator
-       // => OK
-       response := IssueRequest(
-               &RequestTester{
-                       method: "GET",
-                       uri:    unsignedLocator,
-               })
-       ExpectStatusCode(t,
-               "Unauthenticated request, unsigned locator", http.StatusOK, response)
-       ExpectBody(t,
-               "Unauthenticated request, unsigned locator",
-               string(TestBlock),
-               response)
-
-       receivedLen := response.Header().Get("Content-Length")
-       expectedLen := fmt.Sprintf("%d", len(TestBlock))
-       if receivedLen != expectedLen {
-               t.Errorf("expected Content-Length %s, got %s", expectedLen, receivedLen)
-       }
-
-       // ----------------
-       // Permissions: on.
-       theConfig.RequireSignatures = true
-
-       // Authenticated request, signed locator
-       // => OK
-       response = IssueRequest(&RequestTester{
-               method:   "GET",
-               uri:      signedLocator,
-               apiToken: knownToken,
-       })
-       ExpectStatusCode(t,
-               "Authenticated request, signed locator", http.StatusOK, response)
-       ExpectBody(t,
-               "Authenticated request, signed locator", string(TestBlock), response)
-
-       receivedLen = response.Header().Get("Content-Length")
-       expectedLen = fmt.Sprintf("%d", len(TestBlock))
-       if receivedLen != expectedLen {
-               t.Errorf("expected Content-Length %s, got %s", expectedLen, receivedLen)
-       }
-
-       // Authenticated request, unsigned locator
-       // => PermissionError
-       response = IssueRequest(&RequestTester{
-               method:   "GET",
-               uri:      unsignedLocator,
-               apiToken: knownToken,
-       })
-       ExpectStatusCode(t, "unsigned locator", PermissionError.HTTPCode, response)
-
-       // Unauthenticated request, signed locator
-       // => PermissionError
-       response = IssueRequest(&RequestTester{
-               method: "GET",
-               uri:    signedLocator,
-       })
-       ExpectStatusCode(t,
-               "Unauthenticated request, signed locator",
-               PermissionError.HTTPCode, response)
-
-       // Authenticated request, expired locator
-       // => ExpiredError
-       response = IssueRequest(&RequestTester{
-               method:   "GET",
-               uri:      expiredLocator,
-               apiToken: knownToken,
-       })
-       ExpectStatusCode(t,
-               "Authenticated request, expired locator",
-               ExpiredError.HTTPCode, response)
-
-       // Authenticated request, signed locator
-       // => 503 Server busy (transient error)
-
-       // Set up the block owning volume to respond with errors
-       vols[0].(*MockVolume).Bad = true
-       vols[0].(*MockVolume).BadVolumeError = VolumeBusyError
-       response = IssueRequest(&RequestTester{
-               method:   "GET",
-               uri:      signedLocator,
-               apiToken: knownToken,
-       })
-       // A transient error from one volume while the other doesn't find the block
-       // should make the service return a 503 so that clients can retry.
-       ExpectStatusCode(t,
-               "Volume backend busy",
-               503, response)
-}
-
-// Test PutBlockHandler on the following situations:
-//   - no server key
-//   - with server key, authenticated request, unsigned locator
-//   - with server key, unauthenticated request, unsigned locator
-//
-func TestPutHandler(t *testing.T) {
-       defer teardown()
-
-       // Prepare two test Keep volumes.
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-
-       // --------------
-       // No server key.
-
-       // Unauthenticated request, no server key
-       // => OK (unsigned response)
-       unsignedLocator := "/" + TestHash
-       response := IssueRequest(
-               &RequestTester{
-                       method:      "PUT",
-                       uri:         unsignedLocator,
-                       requestBody: TestBlock,
-               })
-
-       ExpectStatusCode(t,
-               "Unauthenticated request, no server key", http.StatusOK, response)
-       ExpectBody(t,
-               "Unauthenticated request, no server key",
-               TestHashPutResp, response)
-
-       // ------------------
-       // With a server key.
-
-       theConfig.blobSigningKey = []byte(knownKey)
-       theConfig.BlobSignatureTTL.Set("5m")
-
-       // When a permission key is available, the locator returned
-       // from an authenticated PUT request will be signed.
-
-       // Authenticated PUT, signed locator
-       // => OK (signed response)
-       response = IssueRequest(
-               &RequestTester{
-                       method:      "PUT",
-                       uri:         unsignedLocator,
-                       requestBody: TestBlock,
-                       apiToken:    knownToken,
-               })
-
-       ExpectStatusCode(t,
-               "Authenticated PUT, signed locator, with server key",
-               http.StatusOK, response)
-       responseLocator := strings.TrimSpace(response.Body.String())
-       if VerifySignature(responseLocator, knownToken) != nil {
-               t.Errorf("Authenticated PUT, signed locator, with server key:\n"+
-                       "response '%s' does not contain a valid signature",
-                       responseLocator)
-       }
-
-       // Unauthenticated PUT, unsigned locator
-       // => OK
-       response = IssueRequest(
-               &RequestTester{
-                       method:      "PUT",
-                       uri:         unsignedLocator,
-                       requestBody: TestBlock,
-               })
-
-       ExpectStatusCode(t,
-               "Unauthenticated PUT, unsigned locator, with server key",
-               http.StatusOK, response)
-       ExpectBody(t,
-               "Unauthenticated PUT, unsigned locator, with server key",
-               TestHashPutResp, response)
-}
-
-func TestPutAndDeleteSkipReadonlyVolumes(t *testing.T) {
-       defer teardown()
-       theConfig.systemAuthToken = "fake-data-manager-token"
-       vols := []*MockVolume{CreateMockVolume(), CreateMockVolume()}
-       vols[0].Readonly = true
-       KeepVM = MakeRRVolumeManager([]Volume{vols[0], vols[1]})
-       defer KeepVM.Close()
-       IssueRequest(
-               &RequestTester{
-                       method:      "PUT",
-                       uri:         "/" + TestHash,
-                       requestBody: TestBlock,
-               })
-       defer func(orig bool) {
-               theConfig.EnableDelete = orig
-       }(theConfig.EnableDelete)
-       theConfig.EnableDelete = true
-       IssueRequest(
-               &RequestTester{
-                       method:      "DELETE",
-                       uri:         "/" + TestHash,
-                       requestBody: TestBlock,
-                       apiToken:    theConfig.systemAuthToken,
-               })
-       type expect struct {
-               volnum    int
-               method    string
-               callcount int
-       }
-       for _, e := range []expect{
-               {0, "Get", 0},
-               {0, "Compare", 0},
-               {0, "Touch", 0},
-               {0, "Put", 0},
-               {0, "Delete", 0},
-               {1, "Get", 0},
-               {1, "Compare", 1},
-               {1, "Touch", 1},
-               {1, "Put", 1},
-               {1, "Delete", 1},
-       } {
-               if calls := vols[e.volnum].CallCount(e.method); calls != e.callcount {
-                       t.Errorf("Got %d %s() on vol %d, expect %d", calls, e.method, e.volnum, e.callcount)
-               }
-       }
-}
-
-// Test /index requests:
-//   - unauthenticated /index request
-//   - unauthenticated /index/prefix request
-//   - authenticated   /index request        | non-superuser
-//   - authenticated   /index/prefix request | non-superuser
-//   - authenticated   /index request        | superuser
-//   - authenticated   /index/prefix request | superuser
-//
-// The only /index requests that should succeed are those issued by the
-// superuser. They should pass regardless of the value of RequireSignatures.
-//
-func TestIndexHandler(t *testing.T) {
-       defer teardown()
-
-       // Set up Keep volumes and populate them.
-       // Include multiple blocks on different volumes, and
-       // some metadata files (which should be omitted from index listings)
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-
-       vols := KeepVM.AllWritable()
-       vols[0].Put(context.Background(), TestHash, TestBlock)
-       vols[1].Put(context.Background(), TestHash2, TestBlock2)
-       vols[0].Put(context.Background(), TestHash+".meta", []byte("metadata"))
-       vols[1].Put(context.Background(), TestHash2+".meta", []byte("metadata"))
-
-       theConfig.systemAuthToken = "DATA MANAGER TOKEN"
-
-       unauthenticatedReq := &RequestTester{
-               method: "GET",
-               uri:    "/index",
-       }
-       authenticatedReq := &RequestTester{
-               method:   "GET",
-               uri:      "/index",
-               apiToken: knownToken,
-       }
-       superuserReq := &RequestTester{
-               method:   "GET",
-               uri:      "/index",
-               apiToken: theConfig.systemAuthToken,
-       }
-       unauthPrefixReq := &RequestTester{
-               method: "GET",
-               uri:    "/index/" + TestHash[0:3],
-       }
-       authPrefixReq := &RequestTester{
-               method:   "GET",
-               uri:      "/index/" + TestHash[0:3],
-               apiToken: knownToken,
-       }
-       superuserPrefixReq := &RequestTester{
-               method:   "GET",
-               uri:      "/index/" + TestHash[0:3],
-               apiToken: theConfig.systemAuthToken,
-       }
-       superuserNoSuchPrefixReq := &RequestTester{
-               method:   "GET",
-               uri:      "/index/abcd",
-               apiToken: theConfig.systemAuthToken,
-       }
-       superuserInvalidPrefixReq := &RequestTester{
-               method:   "GET",
-               uri:      "/index/xyz",
-               apiToken: theConfig.systemAuthToken,
-       }
-
-       // -------------------------------------------------------------
-       // Only the superuser should be allowed to issue /index requests.
-
-       // ---------------------------
-       // RequireSignatures enabled
-       // This setting should not affect tests passing.
-       theConfig.RequireSignatures = true
-
-       // unauthenticated /index request
-       // => UnauthorizedError
-       response := IssueRequest(unauthenticatedReq)
-       ExpectStatusCode(t,
-               "RequireSignatures on, unauthenticated request",
-               UnauthorizedError.HTTPCode,
-               response)
-
-       // unauthenticated /index/prefix request
-       // => UnauthorizedError
-       response = IssueRequest(unauthPrefixReq)
-       ExpectStatusCode(t,
-               "permissions on, unauthenticated /index/prefix request",
-               UnauthorizedError.HTTPCode,
-               response)
-
-       // authenticated /index request, non-superuser
-       // => UnauthorizedError
-       response = IssueRequest(authenticatedReq)
-       ExpectStatusCode(t,
-               "permissions on, authenticated request, non-superuser",
-               UnauthorizedError.HTTPCode,
-               response)
-
-       // authenticated /index/prefix request, non-superuser
-       // => UnauthorizedError
-       response = IssueRequest(authPrefixReq)
-       ExpectStatusCode(t,
-               "permissions on, authenticated /index/prefix request, non-superuser",
-               UnauthorizedError.HTTPCode,
-               response)
-
-       // superuser /index request
-       // => OK
-       response = IssueRequest(superuserReq)
-       ExpectStatusCode(t,
-               "permissions on, superuser request",
-               http.StatusOK,
-               response)
-
-       // ----------------------------
-       // RequireSignatures disabled
-       // Valid Request should still pass.
-       theConfig.RequireSignatures = false
-
-       // superuser /index request
-       // => OK
-       response = IssueRequest(superuserReq)
-       ExpectStatusCode(t,
-               "permissions on, superuser request",
-               http.StatusOK,
-               response)
-
-       expected := `^` + TestHash + `\+\d+ \d+\n` +
-               TestHash2 + `\+\d+ \d+\n\n$`
-       match, _ := regexp.MatchString(expected, response.Body.String())
-       if !match {
-               t.Errorf(
-                       "permissions on, superuser request: expected %s, got:\n%s",
-                       expected, response.Body.String())
-       }
-
-       // superuser /index/prefix request
-       // => OK
-       response = IssueRequest(superuserPrefixReq)
-       ExpectStatusCode(t,
-               "permissions on, superuser request",
-               http.StatusOK,
-               response)
-
-       expected = `^` + TestHash + `\+\d+ \d+\n\n$`
-       match, _ = regexp.MatchString(expected, response.Body.String())
-       if !match {
-               t.Errorf(
-                       "permissions on, superuser /index/prefix request: expected %s, got:\n%s",
-                       expected, response.Body.String())
-       }
-
-       // superuser /index/{no-such-prefix} request
-       // => OK
-       response = IssueRequest(superuserNoSuchPrefixReq)
-       ExpectStatusCode(t,
-               "permissions on, superuser request",
-               http.StatusOK,
-               response)
-
-       if "\n" != response.Body.String() {
-               t.Errorf("Expected empty response for %s. Found %s", superuserNoSuchPrefixReq.uri, response.Body.String())
-       }
-
-       // superuser /index/{invalid-prefix} request
-       // => StatusBadRequest
-       response = IssueRequest(superuserInvalidPrefixReq)
-       ExpectStatusCode(t,
-               "permissions on, superuser request",
-               http.StatusBadRequest,
-               response)
-}
-
-// TestDeleteHandler
-//
-// Cases tested:
-//
-//   With no token and with a non-data-manager token:
-//   * Delete existing block
-//     (test for 403 Forbidden, confirm block not deleted)
-//
-//   With data manager token:
-//
-//   * Delete existing block
-//     (test for 200 OK, response counts, confirm block deleted)
-//
-//   * Delete nonexistent block
-//     (test for 200 OK, response counts)
-//
-//   TODO(twp):
-//
-//   * Delete block on read-only and read-write volume
-//     (test for 200 OK, response with copies_deleted=1,
-//     copies_failed=1, confirm block deleted only on r/w volume)
-//
-//   * Delete block on read-only volume only
-//     (test for 200 OK, response with copies_deleted=0, copies_failed=1,
-//     confirm block not deleted)
-//
-func TestDeleteHandler(t *testing.T) {
-       defer teardown()
-
-       // Set up Keep volumes and populate them.
-       // Include multiple blocks on different volumes, and
-       // some metadata files (which should be omitted from index listings)
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-
-       vols := KeepVM.AllWritable()
-       vols[0].Put(context.Background(), TestHash, TestBlock)
-
-       // Explicitly set the BlobSignatureTTL to 0 for these
-       // tests, to ensure the MockVolume deletes the blocks
-       // even though they have just been created.
-       theConfig.BlobSignatureTTL = arvados.Duration(0)
-
-       var userToken = "NOT DATA MANAGER TOKEN"
-       theConfig.systemAuthToken = "DATA MANAGER TOKEN"
-
-       theConfig.EnableDelete = true
-
-       unauthReq := &RequestTester{
-               method: "DELETE",
-               uri:    "/" + TestHash,
-       }
-
-       userReq := &RequestTester{
-               method:   "DELETE",
-               uri:      "/" + TestHash,
-               apiToken: userToken,
-       }
-
-       superuserExistingBlockReq := &RequestTester{
-               method:   "DELETE",
-               uri:      "/" + TestHash,
-               apiToken: theConfig.systemAuthToken,
-       }
-
-       superuserNonexistentBlockReq := &RequestTester{
-               method:   "DELETE",
-               uri:      "/" + TestHash2,
-               apiToken: theConfig.systemAuthToken,
-       }
-
-       // Unauthenticated request returns PermissionError.
-       var response *httptest.ResponseRecorder
-       response = IssueRequest(unauthReq)
-       ExpectStatusCode(t,
-               "unauthenticated request",
-               PermissionError.HTTPCode,
-               response)
-
-       // Authenticated non-admin request returns PermissionError.
-       response = IssueRequest(userReq)
-       ExpectStatusCode(t,
-               "authenticated non-admin request",
-               PermissionError.HTTPCode,
-               response)
-
-       // Authenticated admin request for nonexistent block.
-       type deletecounter struct {
-               Deleted int `json:"copies_deleted"`
-               Failed  int `json:"copies_failed"`
-       }
-       var responseDc, expectedDc deletecounter
-
-       response = IssueRequest(superuserNonexistentBlockReq)
-       ExpectStatusCode(t,
-               "data manager request, nonexistent block",
-               http.StatusNotFound,
-               response)
-
-       // Authenticated admin request for existing block while EnableDelete is false.
-       theConfig.EnableDelete = false
-       response = IssueRequest(superuserExistingBlockReq)
-       ExpectStatusCode(t,
-               "authenticated request, existing block, method disabled",
-               MethodDisabledError.HTTPCode,
-               response)
-       theConfig.EnableDelete = true
-
-       // Authenticated admin request for existing block.
-       response = IssueRequest(superuserExistingBlockReq)
-       ExpectStatusCode(t,
-               "data manager request, existing block",
-               http.StatusOK,
-               response)
-       // Expect response {"copies_deleted":1,"copies_failed":0}
-       expectedDc = deletecounter{1, 0}
-       json.NewDecoder(response.Body).Decode(&responseDc)
-       if responseDc != expectedDc {
-               t.Errorf("superuserExistingBlockReq\nexpected: %+v\nreceived: %+v",
-                       expectedDc, responseDc)
-       }
-       // Confirm the block has been deleted
-       buf := make([]byte, BlockSize)
-       _, err := vols[0].Get(context.Background(), TestHash, buf)
-       var blockDeleted = os.IsNotExist(err)
-       if !blockDeleted {
-               t.Error("superuserExistingBlockReq: block not deleted")
-       }
-
-       // A DELETE request on a block newer than BlobSignatureTTL
-       // should return success but leave the block on the volume.
-       vols[0].Put(context.Background(), TestHash, TestBlock)
-       theConfig.BlobSignatureTTL = arvados.Duration(time.Hour)
-
-       response = IssueRequest(superuserExistingBlockReq)
-       ExpectStatusCode(t,
-               "data manager request, existing block",
-               http.StatusOK,
-               response)
-       // Expect response {"copies_deleted":1,"copies_failed":0}
-       expectedDc = deletecounter{1, 0}
-       json.NewDecoder(response.Body).Decode(&responseDc)
-       if responseDc != expectedDc {
-               t.Errorf("superuserExistingBlockReq\nexpected: %+v\nreceived: %+v",
-                       expectedDc, responseDc)
-       }
-       // Confirm the block has NOT been deleted.
-       _, err = vols[0].Get(context.Background(), TestHash, buf)
-       if err != nil {
-               t.Errorf("testing delete on new block: %s\n", err)
-       }
-}
-
-// TestPullHandler
-//
-// Test handling of the PUT /pull statement.
-//
-// Cases tested: syntactically valid and invalid pull lists, from the
-// data manager and from unprivileged users:
-//
-//   1. Valid pull list from an ordinary user
-//      (expected result: 401 Unauthorized)
-//
-//   2. Invalid pull request from an ordinary user
-//      (expected result: 401 Unauthorized)
-//
-//   3. Valid pull request from the data manager
-//      (expected result: 200 OK with request body "Received 3 pull
-//      requests"
-//
-//   4. Invalid pull request from the data manager
-//      (expected result: 400 Bad Request)
-//
-// Test that in the end, the pull manager received a good pull list with
-// the expected number of requests.
-//
-// TODO(twp): test concurrency: launch 100 goroutines to update the
-// pull list simultaneously.  Make sure that none of them return 400
-// Bad Request and that pullq.GetList() returns a valid list.
-//
-func TestPullHandler(t *testing.T) {
-       defer teardown()
-
-       var userToken = "USER TOKEN"
-       theConfig.systemAuthToken = "DATA MANAGER TOKEN"
-
-       pullq = NewWorkQueue()
-
-       goodJSON := []byte(`[
-               {
-                       "locator":"locator_with_two_servers",
-                       "servers":[
-                               "server1",
-                               "server2"
-                       ]
-               },
-               {
-                       "locator":"locator_with_no_servers",
-                       "servers":[]
-               },
-               {
-                       "locator":"",
-                       "servers":["empty_locator"]
-               }
-       ]`)
-
-       badJSON := []byte(`{ "key":"I'm a little teapot" }`)
-
-       type pullTest struct {
-               name         string
-               req          RequestTester
-               responseCode int
-               responseBody string
-       }
-       var testcases = []pullTest{
-               {
-                       "Valid pull list from an ordinary user",
-                       RequestTester{"/pull", userToken, "PUT", goodJSON},
-                       http.StatusUnauthorized,
-                       "Unauthorized\n",
-               },
-               {
-                       "Invalid pull request from an ordinary user",
-                       RequestTester{"/pull", userToken, "PUT", badJSON},
-                       http.StatusUnauthorized,
-                       "Unauthorized\n",
-               },
-               {
-                       "Valid pull request from the data manager",
-                       RequestTester{"/pull", theConfig.systemAuthToken, "PUT", goodJSON},
-                       http.StatusOK,
-                       "Received 3 pull requests\n",
-               },
-               {
-                       "Invalid pull request from the data manager",
-                       RequestTester{"/pull", theConfig.systemAuthToken, "PUT", badJSON},
-                       http.StatusBadRequest,
-                       "",
-               },
-       }
-
-       for _, tst := range testcases {
-               response := IssueRequest(&tst.req)
-               ExpectStatusCode(t, tst.name, tst.responseCode, response)
-               ExpectBody(t, tst.name, tst.responseBody, response)
-       }
-
-       // The Keep pull manager should have received one good list with 3
-       // requests on it.
-       for i := 0; i < 3; i++ {
-               item := <-pullq.NextItem
-               if _, ok := item.(PullRequest); !ok {
-                       t.Errorf("item %v could not be parsed as a PullRequest", item)
-               }
-       }
-
-       expectChannelEmpty(t, pullq.NextItem)
-}
-
-// TestTrashHandler
-//
-// Test cases:
-//
-// Cases tested: syntactically valid and invalid trash lists, from the
-// data manager and from unprivileged users:
-//
-//   1. Valid trash list from an ordinary user
-//      (expected result: 401 Unauthorized)
-//
-//   2. Invalid trash list from an ordinary user
-//      (expected result: 401 Unauthorized)
-//
-//   3. Valid trash list from the data manager
-//      (expected result: 200 OK with request body "Received 3 trash
-//      requests"
-//
-//   4. Invalid trash list from the data manager
-//      (expected result: 400 Bad Request)
-//
-// Test that in the end, the trash collector received a good list
-// trash list with the expected number of requests.
-//
-// TODO(twp): test concurrency: launch 100 goroutines to update the
-// pull list simultaneously.  Make sure that none of them return 400
-// Bad Request and that replica.Dump() returns a valid list.
-//
-func TestTrashHandler(t *testing.T) {
-       defer teardown()
-
-       var userToken = "USER TOKEN"
-       theConfig.systemAuthToken = "DATA MANAGER TOKEN"
-
-       trashq = NewWorkQueue()
-
-       goodJSON := []byte(`[
-               {
-                       "locator":"block1",
-                       "block_mtime":1409082153
-               },
-               {
-                       "locator":"block2",
-                       "block_mtime":1409082153
-               },
-               {
-                       "locator":"block3",
-                       "block_mtime":1409082153
-               }
-       ]`)
-
-       badJSON := []byte(`I am not a valid JSON string`)
-
-       type trashTest struct {
-               name         string
-               req          RequestTester
-               responseCode int
-               responseBody string
-       }
-
-       var testcases = []trashTest{
-               {
-                       "Valid trash list from an ordinary user",
-                       RequestTester{"/trash", userToken, "PUT", goodJSON},
-                       http.StatusUnauthorized,
-                       "Unauthorized\n",
-               },
-               {
-                       "Invalid trash list from an ordinary user",
-                       RequestTester{"/trash", userToken, "PUT", badJSON},
-                       http.StatusUnauthorized,
-                       "Unauthorized\n",
-               },
-               {
-                       "Valid trash list from the data manager",
-                       RequestTester{"/trash", theConfig.systemAuthToken, "PUT", goodJSON},
-                       http.StatusOK,
-                       "Received 3 trash requests\n",
-               },
-               {
-                       "Invalid trash list from the data manager",
-                       RequestTester{"/trash", theConfig.systemAuthToken, "PUT", badJSON},
-                       http.StatusBadRequest,
-                       "",
-               },
-       }
-
-       for _, tst := range testcases {
-               response := IssueRequest(&tst.req)
-               ExpectStatusCode(t, tst.name, tst.responseCode, response)
-               ExpectBody(t, tst.name, tst.responseBody, response)
-       }
-
-       // The trash collector should have received one good list with 3
-       // requests on it.
-       for i := 0; i < 3; i++ {
-               item := <-trashq.NextItem
-               if _, ok := item.(TrashRequest); !ok {
-                       t.Errorf("item %v could not be parsed as a TrashRequest", item)
-               }
-       }
-
-       expectChannelEmpty(t, trashq.NextItem)
-}
-
-// ====================
-// Helper functions
-// ====================
-
-// IssueTestRequest executes an HTTP request described by rt, to a
-// REST router.  It returns the HTTP response to the request.
-func IssueRequest(rt *RequestTester) *httptest.ResponseRecorder {
-       response := httptest.NewRecorder()
-       body := bytes.NewReader(rt.requestBody)
-       req, _ := http.NewRequest(rt.method, rt.uri, body)
-       if rt.apiToken != "" {
-               req.Header.Set("Authorization", "OAuth2 "+rt.apiToken)
-       }
-       loggingRouter := MakeRESTRouter(testCluster, prometheus.NewRegistry())
-       loggingRouter.ServeHTTP(response, req)
-       return response
-}
-
-func IssueHealthCheckRequest(rt *RequestTester) *httptest.ResponseRecorder {
-       response := httptest.NewRecorder()
-       body := bytes.NewReader(rt.requestBody)
-       req, _ := http.NewRequest(rt.method, rt.uri, body)
-       if rt.apiToken != "" {
-               req.Header.Set("Authorization", "Bearer "+rt.apiToken)
-       }
-       loggingRouter := MakeRESTRouter(testCluster, prometheus.NewRegistry())
-       loggingRouter.ServeHTTP(response, req)
-       return response
-}
-
-// ExpectStatusCode checks whether a response has the specified status code,
-// and reports a test failure if not.
-func ExpectStatusCode(
-       t *testing.T,
-       testname string,
-       expectedStatus int,
-       response *httptest.ResponseRecorder) {
-       if response.Code != expectedStatus {
-               t.Errorf("%s: expected status %d, got %+v",
-                       testname, expectedStatus, response)
-       }
-}
-
-func ExpectBody(
-       t *testing.T,
-       testname string,
-       expectedBody string,
-       response *httptest.ResponseRecorder) {
-       if expectedBody != "" && response.Body.String() != expectedBody {
-               t.Errorf("%s: expected response body '%s', got %+v",
-                       testname, expectedBody, response)
-       }
-}
-
-// See #7121
-func TestPutNeedsOnlyOneBuffer(t *testing.T) {
-       defer teardown()
-       KeepVM = MakeTestVolumeManager(1)
-       defer KeepVM.Close()
-
-       defer func(orig *bufferPool) {
-               bufs = orig
-       }(bufs)
-       bufs = newBufferPool(1, BlockSize)
-
-       ok := make(chan struct{})
-       go func() {
-               for i := 0; i < 2; i++ {
-                       response := IssueRequest(
-                               &RequestTester{
-                                       method:      "PUT",
-                                       uri:         "/" + TestHash,
-                                       requestBody: TestBlock,
-                               })
-                       ExpectStatusCode(t,
-                               "TestPutNeedsOnlyOneBuffer", http.StatusOK, response)
-               }
-               ok <- struct{}{}
-       }()
-
-       select {
-       case <-ok:
-       case <-time.After(time.Second):
-               t.Fatal("PUT deadlocks with MaxBuffers==1")
-       }
-}
-
-// Invoke the PutBlockHandler a bunch of times to test for bufferpool resource
-// leak.
-func TestPutHandlerNoBufferleak(t *testing.T) {
-       defer teardown()
-
-       // Prepare two test Keep volumes.
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-
-       ok := make(chan bool)
-       go func() {
-               for i := 0; i < theConfig.MaxBuffers+1; i++ {
-                       // Unauthenticated request, no server key
-                       // => OK (unsigned response)
-                       unsignedLocator := "/" + TestHash
-                       response := IssueRequest(
-                               &RequestTester{
-                                       method:      "PUT",
-                                       uri:         unsignedLocator,
-                                       requestBody: TestBlock,
-                               })
-                       ExpectStatusCode(t,
-                               "TestPutHandlerBufferleak", http.StatusOK, response)
-                       ExpectBody(t,
-                               "TestPutHandlerBufferleak",
-                               TestHashPutResp, response)
-               }
-               ok <- true
-       }()
-       select {
-       case <-time.After(20 * time.Second):
-               // If the buffer pool leaks, the test goroutine hangs.
-               t.Fatal("test did not finish, assuming pool leaked")
-       case <-ok:
-       }
-}
-
-type notifyingResponseRecorder struct {
-       *httptest.ResponseRecorder
-       closer chan bool
-}
-
-func (r *notifyingResponseRecorder) CloseNotify() <-chan bool {
-       return r.closer
-}
-
-func TestGetHandlerClientDisconnect(t *testing.T) {
-       defer func(was bool) {
-               theConfig.RequireSignatures = was
-       }(theConfig.RequireSignatures)
-       theConfig.RequireSignatures = false
-
-       defer func(orig *bufferPool) {
-               bufs = orig
-       }(bufs)
-       bufs = newBufferPool(1, BlockSize)
-       defer bufs.Put(bufs.Get(BlockSize))
-
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-
-       if err := KeepVM.AllWritable()[0].Put(context.Background(), TestHash, TestBlock); err != nil {
-               t.Error(err)
-       }
-
-       resp := &notifyingResponseRecorder{
-               ResponseRecorder: httptest.NewRecorder(),
-               closer:           make(chan bool, 1),
-       }
-       if _, ok := http.ResponseWriter(resp).(http.CloseNotifier); !ok {
-               t.Fatal("notifyingResponseRecorder is broken")
-       }
-       // If anyone asks, the client has disconnected.
-       resp.closer <- true
-
-       ok := make(chan struct{})
-       go func() {
-               req, _ := http.NewRequest("GET", fmt.Sprintf("/%s+%d", TestHash, len(TestBlock)), nil)
-               MakeRESTRouter(testCluster, prometheus.NewRegistry()).ServeHTTP(resp, req)
-               ok <- struct{}{}
-       }()
-
-       select {
-       case <-time.After(20 * time.Second):
-               t.Fatal("request took >20s, close notifier must be broken")
-       case <-ok:
-       }
-
-       ExpectStatusCode(t, "client disconnect", http.StatusServiceUnavailable, resp.ResponseRecorder)
-       for i, v := range KeepVM.AllWritable() {
-               if calls := v.(*MockVolume).called["GET"]; calls != 0 {
-                       t.Errorf("volume %d got %d calls, expected 0", i, calls)
-               }
-       }
-}
-
-// Invoke the GetBlockHandler a bunch of times to test for bufferpool resource
-// leak.
-func TestGetHandlerNoBufferLeak(t *testing.T) {
-       defer teardown()
-
-       // Prepare two test Keep volumes. Our block is stored on the second volume.
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-
-       vols := KeepVM.AllWritable()
-       if err := vols[0].Put(context.Background(), TestHash, TestBlock); err != nil {
-               t.Error(err)
-       }
-
-       ok := make(chan bool)
-       go func() {
-               for i := 0; i < theConfig.MaxBuffers+1; i++ {
-                       // Unauthenticated request, unsigned locator
-                       // => OK
-                       unsignedLocator := "/" + TestHash
-                       response := IssueRequest(
-                               &RequestTester{
-                                       method: "GET",
-                                       uri:    unsignedLocator,
-                               })
-                       ExpectStatusCode(t,
-                               "Unauthenticated request, unsigned locator", http.StatusOK, response)
-                       ExpectBody(t,
-                               "Unauthenticated request, unsigned locator",
-                               string(TestBlock),
-                               response)
-               }
-               ok <- true
-       }()
-       select {
-       case <-time.After(20 * time.Second):
-               // If the buffer pool leaks, the test goroutine hangs.
-               t.Fatal("test did not finish, assuming pool leaked")
-       case <-ok:
-       }
-}
-
-func TestPutReplicationHeader(t *testing.T) {
-       defer teardown()
-
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-
-       resp := IssueRequest(&RequestTester{
-               method:      "PUT",
-               uri:         "/" + TestHash,
-               requestBody: TestBlock,
-       })
-       if r := resp.Header().Get("X-Keep-Replicas-Stored"); r != "1" {
-               t.Errorf("Got X-Keep-Replicas-Stored: %q, expected %q", r, "1")
-       }
-}
-
-func TestUntrashHandler(t *testing.T) {
-       defer teardown()
-
-       // Set up Keep volumes
-       KeepVM = MakeTestVolumeManager(2)
-       defer KeepVM.Close()
-       vols := KeepVM.AllWritable()
-       vols[0].Put(context.Background(), TestHash, TestBlock)
-
-       theConfig.systemAuthToken = "DATA MANAGER TOKEN"
-
-       // unauthenticatedReq => UnauthorizedError
-       unauthenticatedReq := &RequestTester{
-               method: "PUT",
-               uri:    "/untrash/" + TestHash,
-       }
-       response := IssueRequest(unauthenticatedReq)
-       ExpectStatusCode(t,
-               "Unauthenticated request",
-               UnauthorizedError.HTTPCode,
-               response)
-
-       // notDataManagerReq => UnauthorizedError
-       notDataManagerReq := &RequestTester{
-               method:   "PUT",
-               uri:      "/untrash/" + TestHash,
-               apiToken: knownToken,
-       }
-
-       response = IssueRequest(notDataManagerReq)
-       ExpectStatusCode(t,
-               "Non-datamanager token",
-               UnauthorizedError.HTTPCode,
-               response)
-
-       // datamanagerWithBadHashReq => StatusBadRequest
-       datamanagerWithBadHashReq := &RequestTester{
-               method:   "PUT",
-               uri:      "/untrash/thisisnotalocator",
-               apiToken: theConfig.systemAuthToken,
-       }
-       response = IssueRequest(datamanagerWithBadHashReq)
-       ExpectStatusCode(t,
-               "Bad locator in untrash request",
-               http.StatusBadRequest,
-               response)
-
-       // datamanagerWrongMethodReq => StatusBadRequest
-       datamanagerWrongMethodReq := &RequestTester{
-               method:   "GET",
-               uri:      "/untrash/" + TestHash,
-               apiToken: theConfig.systemAuthToken,
-       }
-       response = IssueRequest(datamanagerWrongMethodReq)
-       ExpectStatusCode(t,
-               "Only PUT method is supported for untrash",
-               http.StatusMethodNotAllowed,
-               response)
-
-       // datamanagerReq => StatusOK
-       datamanagerReq := &RequestTester{
-               method:   "PUT",
-               uri:      "/untrash/" + TestHash,
-               apiToken: theConfig.systemAuthToken,
-       }
-       response = IssueRequest(datamanagerReq)
-       ExpectStatusCode(t,
-               "",
-               http.StatusOK,
-               response)
-       expected := "Successfully untrashed on: [MockVolume],[MockVolume]"
-       if response.Body.String() != expected {
-               t.Errorf(
-                       "Untrash response mismatched: expected %s, got:\n%s",
-                       expected, response.Body.String())
-       }
-}
-
-func TestUntrashHandlerWithNoWritableVolumes(t *testing.T) {
-       defer teardown()
-
-       // Set up readonly Keep volumes
-       vols := []*MockVolume{CreateMockVolume(), CreateMockVolume()}
-       vols[0].Readonly = true
-       vols[1].Readonly = true
-       KeepVM = MakeRRVolumeManager([]Volume{vols[0], vols[1]})
-       defer KeepVM.Close()
-
-       theConfig.systemAuthToken = "DATA MANAGER TOKEN"
-
-       // datamanagerReq => StatusOK
-       datamanagerReq := &RequestTester{
-               method:   "PUT",
-               uri:      "/untrash/" + TestHash,
-               apiToken: theConfig.systemAuthToken,
-       }
-       response := IssueRequest(datamanagerReq)
-       ExpectStatusCode(t,
-               "No writable volumes",
-               http.StatusNotFound,
-               response)
-}
-
-func TestHealthCheckPing(t *testing.T) {
-       theConfig.ManagementToken = arvadostest.ManagementToken
-       pingReq := &RequestTester{
-               method:   "GET",
-               uri:      "/_health/ping",
-               apiToken: arvadostest.ManagementToken,
-       }
-       response := IssueHealthCheckRequest(pingReq)
-       ExpectStatusCode(t,
-               "",
-               http.StatusOK,
-               response)
-       want := `{"health":"OK"}`
-       if !strings.Contains(response.Body.String(), want) {
-               t.Errorf("expected response to include %s: got %s", want, response.Body.String())
-       }
-}