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minio/pkg/handlers/http-tracer_test.go

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log: Store http request/responses in a log file (#4804) When MINIO_TRACE_DIR is provided, create a new log file and store all HTTP requests + responses data, body are excluded to reduce memory consumption. MINIO_HTTP_TRACE=1 enables logging. Use non mem consuming http req/resp recorders, the maximum is about 32k per request. This logs to STDOUT, body logging is disabled for PutObject PutObjectPart GetObject.
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/*
Replace Minio refs in docs with MinIO and links (#7494)
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* MinIO Cloud Storage, (C) 2017 MinIO, Inc.
log: Store http request/responses in a log file (#4804) When MINIO_TRACE_DIR is provided, create a new log file and store all HTTP requests + responses data, body are excluded to reduce memory consumption. MINIO_HTTP_TRACE=1 enables logging. Use non mem consuming http req/resp recorders, the maximum is about 32k per request. This logs to STDOUT, body logging is disabled for PutObject PutObjectPart GetObject.
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package handlers
import (
"bytes"
"io"
"io/ioutil"
"net/http"
"net/http/httptest"
"regexp"
"testing"
)
func wsTestSuccessHandler(w http.ResponseWriter, r *http.Request) {
// A very simple health check.
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
ioutil.ReadAll(r.Body)
// In the future we could report back on the status of our DB, or our cache
// (e.g. Redis) by performing a simple PING, and include them in the response.
io.WriteString(w, `{"success": true}`)
}
func wsTest404Handler(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
}
func TestTraceHTTPHandler(t *testing.T) {
logOutput := bytes.NewBuffer([]byte(""))
testCases := []struct {
method string
path string
sentData string
headers map[string]string
handler http.HandlerFunc
expectedStatus int
expectedLogRegexp string
}{
{
method: "PUT",
path: "/test-log",
sentData: "sending data",
headers: map[string]string{"Test-Header": "TestHeaderValue"},
handler: TraceReqHandlerFunc(http.HandlerFunc(wsTestSuccessHandler), logOutput, true),
expectedStatus: http.StatusOK,
expectedLogRegexp: `\[REQUEST github.com/minio/minio/pkg/handlers.wsTestSuccessHandler\] \[[^\]]*\] \[[^\]]*\]
PUT /test-log
Host:\
Test-Header: TestHeaderValue
sending data
\[RESPONSE\] \[[^\]]*\] \[[^\]]*\]
200 OK
{"success": true}
`,
},
{
method: "POST",
path: "/test-log",
handler: TraceReqHandlerFunc(http.HandlerFunc(wsTestSuccessHandler), logOutput, false),
headers: map[string]string{"Test-Header": "TestHeaderValue"},
expectedStatus: http.StatusOK,
expectedLogRegexp: `\[REQUEST github.com/minio/minio/pkg/handlers.wsTestSuccessHandler\] \[[^\]]*\] \[[^\]]*\]
POST /test-log
Host:\
Test-Header: TestHeaderValue
<BODY>
\[RESPONSE\] \[[^\]]*\] \[[^\]]*\]
200 OK
<BODY>
`,
},
{
method: "POST",
path: "/test-log",
handler: TraceReqHandlerFunc(http.HandlerFunc(wsTest404Handler), logOutput, false),
headers: map[string]string{"Test-Header": "TestHeaderValue"},
expectedStatus: http.StatusNotFound,
expectedLogRegexp: `\[REQUEST github.com/minio/minio/pkg/handlers.wsTest404Handler\] \[[^\]]*\] \[[^\]]*\]
POST /test-log
Host:\
Test-Header: TestHeaderValue
<BODY>
\[RESPONSE\] \[[^\]]*\] \[[^\]]*\]
404 Not Found
<BODY>
`,
},
}
for i, testCase := range testCases {
logOutput.Reset()
req, err := http.NewRequest(testCase.method, testCase.path, bytes.NewBuffer([]byte(testCase.sentData)))
if err != nil {
t.Fatalf("Test %d: %v\n", i+1, err)
}
for k, v := range testCase.headers {
req.Header.Set(k, v)
}
rr := httptest.NewRecorder()
handler := testCase.handler
handler.ServeHTTP(rr, req)
// Check the status code is what we expect.
if status := rr.Code; status != testCase.expectedStatus {
t.Errorf("Test %d: handler returned wrong status code: got %v want %v", i+1,
status, testCase.expectedStatus)
}
Introduce staticcheck for stricter builds (#7035)
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matched, err := regexp.MatchString(testCase.expectedLogRegexp, logOutput.String())
log: Store http request/responses in a log file (#4804) When MINIO_TRACE_DIR is provided, create a new log file and store all HTTP requests + responses data, body are excluded to reduce memory consumption. MINIO_HTTP_TRACE=1 enables logging. Use non mem consuming http req/resp recorders, the maximum is about 32k per request. This logs to STDOUT, body logging is disabled for PutObject PutObjectPart GetObject.
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if err != nil {
t.Fatalf("Test %d: Incorrect regexp: %v", i+1, err)
}
if !matched {
Introduce staticcheck for stricter builds (#7035)
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t.Fatalf("Test %d: Unexpected log content, found: `%s`", i+1, logOutput.String())
log: Store http request/responses in a log file (#4804) When MINIO_TRACE_DIR is provided, create a new log file and store all HTTP requests + responses data, body are excluded to reduce memory consumption. MINIO_HTTP_TRACE=1 enables logging. Use non mem consuming http req/resp recorders, the maximum is about 32k per request. This logs to STDOUT, body logging is disabled for PutObject PutObjectPart GetObject.
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}
}
}