0df09e356d
* agent: do not grap idLock writelock until caching entry * agent: inflight cache using sync.Map * agent: implement an inflight caching mechanism * agent/lease: add lock for inflight cache to prevent simultaneous Set calls * agent/lease: lock on a per-ID basis so unique requests can be processed independently * agent/lease: add some concurrency tests * test: use lease_id for uniqueness * agent: remove env flags, add comments around locks * agent: clean up test comment * agent: clean up test comment * agent: remove commented debug code * agent/lease: word-smithing * Update command/agent/cache/lease_cache.go Co-authored-by: Nick Cabatoff <ncabatoff@hashicorp.com> * agent/lease: return the context error if the Done ch got closed * agent/lease: fix data race in concurrency tests * agent/lease: mockDelayProxier: return ctx.Err() if context got canceled * agent/lease: remove unused inflightCacheLock * agent/lease: test: bump context timeout to 3s Co-authored-by: Nick Cabatoff <ncabatoff@hashicorp.com>
108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
package cache
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import (
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"context"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"math/rand"
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"net/http"
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"strings"
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"time"
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"github.com/hashicorp/vault/api"
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)
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// mockProxier is a mock implementation of the Proxier interface, used for testing purposes.
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// The mock will return the provided responses every time it reaches its Send method, up to
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// the last provided response. This lets tests control what the next/underlying Proxier layer
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// might expect to return.
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type mockProxier struct {
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proxiedResponses []*SendResponse
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responseIndex int
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}
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func newMockProxier(responses []*SendResponse) *mockProxier {
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return &mockProxier{
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proxiedResponses: responses,
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}
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}
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func (p *mockProxier) Send(ctx context.Context, req *SendRequest) (*SendResponse, error) {
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if p.responseIndex >= len(p.proxiedResponses) {
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return nil, fmt.Errorf("index out of bounds: responseIndex = %d, responses = %d", p.responseIndex, len(p.proxiedResponses))
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}
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resp := p.proxiedResponses[p.responseIndex]
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p.responseIndex++
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return resp, nil
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}
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func (p *mockProxier) ResponseIndex() int {
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return p.responseIndex
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}
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func newTestSendResponse(status int, body string) *SendResponse {
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resp := &SendResponse{
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Response: &api.Response{
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Response: &http.Response{
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StatusCode: status,
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Header: http.Header{},
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},
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},
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}
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resp.Response.Header.Set("Date", time.Now().Format(http.TimeFormat))
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if body != "" {
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resp.Response.Body = ioutil.NopCloser(strings.NewReader(body))
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resp.ResponseBody = []byte(body)
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}
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if json.Valid([]byte(body)) {
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resp.Response.Header.Set("content-type", "application/json")
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}
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return resp
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}
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type mockTokenVerifierProxier struct {
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currentToken string
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}
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func (p *mockTokenVerifierProxier) Send(ctx context.Context, req *SendRequest) (*SendResponse, error) {
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p.currentToken = req.Token
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resp := newTestSendResponse(http.StatusOK,
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`{"data": {"id": "`+p.currentToken+`"}}`)
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return resp, nil
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}
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func (p *mockTokenVerifierProxier) GetCurrentRequestToken() string {
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return p.currentToken
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}
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type mockDelayProxier struct {
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cacheableResp bool
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delay int
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}
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func (p *mockDelayProxier) Send(ctx context.Context, req *SendRequest) (*SendResponse, error) {
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if p.delay > 0 {
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select {
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case <-ctx.Done():
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return nil, ctx.Err()
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case <-time.After(time.Duration(p.delay) * time.Millisecond):
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}
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}
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// If this is a cacheable response, we return a unique response every time
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if p.cacheableResp {
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rand.Seed(time.Now().Unix())
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s := fmt.Sprintf(`{"lease_id": "%d", "renewable": true, "data": {"foo": "bar"}}`, rand.Int())
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return newTestSendResponse(http.StatusOK, s), nil
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}
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return newTestSendResponse(http.StatusOK, `{"value": "output"}`), nil
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}
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