ooni-probe-cli/internal/engine/cmd/oohelperd/internal/http.go
Simone Basso d57c78bc71
chore: merge probe-engine into probe-cli (#201)
This is how I did it:

1. `git clone https://github.com/ooni/probe-engine internal/engine`

2. ```
(cd internal/engine && git describe --tags)
v0.23.0
```

3. `nvim go.mod` (merging `go.mod` with `internal/engine/go.mod`

4. `rm -rf internal/.git internal/engine/go.{mod,sum}`

5. `git add internal/engine`

6. `find . -type f -name \*.go -exec sed -i 's@/ooni/probe-engine@/ooni/probe-cli/v3/internal/engine@g' {} \;`

7. `go build ./...` (passes)

8. `go test -race ./...` (temporary failure on RiseupVPN)

9. `go mod tidy`

10. this commit message

Once this piece of work is done, we can build a new version of `ooniprobe` that
is using `internal/engine` directly. We need to do more work to ensure all the
other functionality in `probe-engine` (e.g. making mobile packages) are still WAI.

Part of https://github.com/ooni/probe/issues/1335
2021-02-02 12:05:47 +01:00

68 lines
1.7 KiB
Go

package internal
import (
"context"
"io"
"io/ioutil"
"net/http"
"strings"
"sync"
"github.com/ooni/probe-cli/v3/internal/engine/experiment/webconnectivity"
)
// CtrlHTTPResponse is the result of the HTTP check performed by
// the Web Connectivity test helper.
type CtrlHTTPResponse = webconnectivity.ControlHTTPRequestResult
// HTTPConfig configures the HTTP check.
type HTTPConfig struct {
Client *http.Client
Headers map[string][]string
MaxAcceptableBody int64
Out chan CtrlHTTPResponse
URL string
Wg *sync.WaitGroup
}
// HTTPDo performs the HTTP check.
func HTTPDo(ctx context.Context, config *HTTPConfig) {
defer config.Wg.Done()
req, err := http.NewRequestWithContext(ctx, "GET", config.URL, nil)
if err != nil {
config.Out <- CtrlHTTPResponse{Failure: newfailure(err)}
return
}
// The original test helper failed with extra headers while here
// we're implementing (for now?) a more liberal approach.
for k, vs := range config.Headers {
switch strings.ToLower(k) {
case "user-agent":
case "accept":
case "accept-language":
for _, v := range vs {
req.Header.Add(k, v)
}
}
}
resp, err := config.Client.Do(req)
if err != nil {
config.Out <- CtrlHTTPResponse{Failure: newfailure(err)}
return
}
defer resp.Body.Close()
headers := make(map[string]string)
for k := range resp.Header {
headers[k] = resp.Header.Get(k)
}
reader := &io.LimitedReader{R: resp.Body, N: config.MaxAcceptableBody}
data, err := ioutil.ReadAll(reader)
config.Out <- CtrlHTTPResponse{
BodyLength: int64(len(data)),
Failure: newfailure(err),
StatusCode: int64(resp.StatusCode),
Headers: headers,
Title: webconnectivity.GetTitle(string(data)),
}
}