func makeRequest(testCase plan.TestCase) ([]byte, error) {
callURL, err := url.Parse(fmt.Sprintf("http://%v:8080/", testCase.Client))
if err != nil {
return []byte(""), err
}
args := url.Values{}
for k, v := range testCase.Arguments {
args.Add(k, v)
}
callURL.RawQuery = args.Encode()
ctx, _ := context.WithTimeout(
context.Background(), testCase.Plan.Config.CallTimeout*time.Second)
resp, err := ctxhttp.Get(ctx, nil, callURL.String())
if err != nil {
return []byte(""), err
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return []byte(""), err
}
if resp.StatusCode != 200 {
return []byte(""), fmt.Errorf("wanted status code 200, got %v", resp.StatusCode)
}
return body, nil
}
// Lookup returns rectangles for the given address. Currently the only
// implementation is the Google geocoding service.
func Lookup(ctx context.Context, address string) ([]Rect, error) {
mu.RLock()
rects, ok := cache[address]
mu.RUnlock()
if ok {
return rects, nil
}
rectsi, err := sf.Do(address, func() (interface{}, error) {
// TODO: static data files from OpenStreetMap, Wikipedia, etc?
urlStr := "https://maps.googleapis.com/maps/api/geocode/json?address=" + url.QueryEscape(address) + "&sensor=false"
res, err := ctxhttp.Get(ctx, ctxutil.Client(ctx), urlStr)
if err != nil {
return nil, err
}
defer res.Body.Close()
rects, err := decodeGoogleResponse(res.Body)
log.Printf("Google geocode lookup (%q) = %#v, %v", address, rects, err)
if err == nil {
mu.Lock()
cache[address] = rects
mu.Unlock()
}
return rects, err
})
if err != nil {
return nil, err
}
return rectsi.([]Rect), nil
}
// ContentWithContext is a helper to abstract the location concept (not thread safe)
func (obj *Object) ContentWithContext(ctx context.Context) ([]byte, error) {
if obj == nil {
return nil, nil
}
if len(obj.Blob) > 0 || obj.Location == "" {
return obj.Blob, nil
}
resp, err := ctxhttp.Get(ctx, nil, obj.Location)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, errors.New(resp.Status)
}
ct := resp.Header.Get("Content-Type")
if ct != "" {
obj.ContentType = ct
}
blob, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
obj.Blob = blob
return blob, nil
}
func (ds *Datasource) fetchIntervalState(ctx context.Context, interval string, n int) (State, error) {
var url string
if n != 0 {
url = ds.baseIntervalURL(interval, n) + ".state.txt"
} else {
url = fmt.Sprintf("%s/replication/%s/state.txt", ds.baseURL(), interval)
}
resp, err := ctxhttp.Get(ctx, ds.client(), url)
if err != nil {
return State{}, err
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return State{}, fmt.Errorf("incorrect status code: %v", resp.StatusCode)
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return State{}, err
}
return decodeIntervalState(data, interval)
}
// PluginGetURL fetches the content of a URL, which could be static or dynamic (passed in).
// It only works with an api with a simple Text/Text signature.
func PluginGetURL(static bool, uri string, model interface{}) Plugin {
if static {
if uri == "" {
return nil
}
}
return func(ctx context.Context, in interface{}) (out interface{}, err error) {
inb, err := TextBytes(in)
if err != nil {
return nil, err
}
ins := string(inb)
if static {
ins = uri
}
resp, err := ctxhttp.Get(ctx, http.DefaultClient, ins) // handles context.Done() correctly
if err != nil {
return nil, err
}
byts, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err // unable to create a simple test case for this error
}
err = resp.Body.Close()
if err != nil {
return nil, err // unable to create a simple test case for this error
}
return TextConvert(byts, model)
}
}
// Login takes a Hover username and password and returns the login cookie value
func Login(ctx context.Context, hc *http.Client, username, password string) (*http.Cookie, error) {
v := make(url.Values)
v.Set("username", username)
v.Set("password", password)
r, err := ctxhttp.Get(ctx, hc, fmt.Sprintf("%s/login?%s", defaultURL, v.Encode()))
if err != nil {
return nil, err
}
defer r.Body.Close()
if r.StatusCode != 200 {
return nil, InvalidLogin(fmt.Sprintf("login HTTP status code was %d", r.StatusCode))
}
var c *http.Cookie
for _, cook := range r.Cookies() {
if cook.Name == "hoverauth" && cook.Value != "" {
c = cook
break
}
}
if c == nil {
return nil, InvalidLogin("unable to find 'hoverauth' cookie with data in response")
}
return c, nil
}
// queryCAA sends the query request to the GPD API. If the return code is
// dns.RcodeSuccess the 'Answer' section is parsed for CAA records, otherwise
// an error is returned. Unlike bdns.DNSResolver.LookupCAA it will not repeat
// failed queries if the context has not expired as we expect to be running
// multiple queries in parallel and only need a M of N quorum (we also expect
// GPD to have quite good availability)
func (cdr *CAADistributedResolver) queryCAA(ctx context.Context, url string, ic *http.Client) ([]*dns.CAA, error) {
apiResp, err := ctxhttp.Get(ctx, ic, url)
if err != nil {
return nil, err
}
defer func() {
_ = apiResp.Body.Close()
}()
body, err := ioutil.ReadAll(&io.LimitedReader{R: apiResp.Body, N: 1024})
if err != nil {
return nil, err
}
if apiResp.StatusCode != http.StatusOK {
if string(body) != "" {
return nil, fmt.Errorf("Unexpected HTTP status code %d, body: %s", apiResp.StatusCode, body)
}
return nil, fmt.Errorf("Unexpected HTTP status code %d", apiResp.StatusCode)
}
var respObj core.GPDNSResponse
err = json.Unmarshal(body, &respObj)
if err != nil {
return nil, err
}
if respObj.Status != dns.RcodeSuccess {
if respObj.Comment != "" {
return nil, fmt.Errorf("Query failed with %s: %s", dns.RcodeToString[respObj.Status], respObj.Comment)
}
return nil, fmt.Errorf("Query failed wtih %s", dns.RcodeToString[respObj.Status])
}
return parseAnswer(respObj.Answer)
}
// FetchCert retrieves already issued certificate from the given url, in DER format.
// It retries the request until the certificate is successfully retrieved,
// context is cancelled by the caller or an error response is received.
//
// The returned value will also contain the CA (issuer) certificate if the bundle argument is true.
//
// FetchCert returns an error if the CA's response or chain was unreasonably large.
// Callers are encouraged to parse the returned value to ensure the certificate is valid
// and has expected features.
func (c *Client) FetchCert(ctx context.Context, url string, bundle bool) ([][]byte, error) {
for {
res, err := ctxhttp.Get(ctx, c.HTTPClient, url)
if err != nil {
return nil, err
}
defer res.Body.Close()
if res.StatusCode == http.StatusOK {
return responseCert(ctx, c.HTTPClient, res, bundle)
}
if res.StatusCode > 299 {
return nil, responseError(res)
}
d, err := retryAfter(res.Header.Get("retry-after"))
if err != nil {
d = 3 * time.Second
}
select {
case <-time.After(d):
// retry
case <-ctx.Done():
return nil, ctx.Err()
}
}
}
func testOnGCE() bool {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
resc := make(chan bool, 2)
// Try two strategies in parallel.
// See https://github.com/GoogleCloudPlatform/gcloud-golang/issues/194
go func() {
res, err := ctxhttp.Get(ctx, metaClient, "http://"+metadataIP)
if err != nil {
resc <- false
return
}
defer res.Body.Close()
resc <- res.Header.Get("Metadata-Flavor") == "Google"
}()
go func() {
addrs, err := net.LookupHost("metadata.google.internal")
if err != nil || len(addrs) == 0 {
resc <- false
return
}
resc <- strsContains(addrs, metadataIP)
}()
return <-resc
}
func TestContextCancel(t *testing.T) {
// server that doesn't reply before the timeout
wg := sync.WaitGroup{}
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
time.Sleep(2 * time.Second)
fmt.Fprint(w, r.URL.Path)
wg.Done()
}))
defer srv.Close()
tr := NewTransport(nil, RetryAll(RetryMaxRetries(1), RetryStatusInterval(500, 600)), ConstDelay(0))
c := &http.Client{
Transport: tr,
}
ctx, cancelFn := context.WithDeadline(context.Background(), time.Now().Add(time.Second))
defer cancelFn()
wg.Add(1)
res, err := ctxhttp.Get(ctx, c, srv.URL+"/test")
require.Nil(t, res)
assert.Equal(t, context.DeadlineExceeded, err)
wg.Wait()
}
// NewProvider uses the OpenID Connect discovery mechanism to construct a Provider.
//
// The issuer is the URL identifier for the service. For example: "https://accounts.google.com"
// or "https://login.salesforce.com".
func NewProvider(ctx context.Context, issuer string) (*Provider, error) {
wellKnown := strings.TrimSuffix(issuer, "/") + "/.well-known/openid-configuration"
resp, err := ctxhttp.Get(ctx, clientFromContext(ctx), wellKnown)
if err != nil {
return nil, err
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("%s: %s", resp.Status, body)
}
defer resp.Body.Close()
var p providerJSON
if err := json.Unmarshal(body, &p); err != nil {
return nil, fmt.Errorf("oidc: failed to decode provider discovery object: %v", err)
}
if p.Issuer != issuer {
return nil, fmt.Errorf("oidc: issuer did not match the issuer returned by provider, expected %q got %q", issuer, p.Issuer)
}
return &Provider{
issuer: p.Issuer,
authURL: p.AuthURL,
tokenURL: p.TokenURL,
userInfoURL: p.UserInfoURL,
rawClaims: body,
remoteKeySet: newRemoteKeySet(ctx, p.JWKSURL, time.Now),
}, nil
}
func TestContextCancelOnRetry(t *testing.T) {
callCnt := int32(0)
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
cnt := atomic.AddInt32(&callCnt, 1)
switch cnt {
case 1:
w.WriteHeader(500)
default:
time.Sleep(2 * time.Second)
fmt.Fprint(w, r.URL.Path)
}
}))
defer srv.Close()
// cancel while waiting on retry response
tr := NewTransport(nil, RetryAll(RetryMaxRetries(1), RetryStatusInterval(500, 600)), ConstDelay(0))
c := &http.Client{
Transport: tr,
}
ctx, cancelFn := context.WithDeadline(context.Background(), time.Now().Add(time.Second))
defer cancelFn()
res, err := ctxhttp.Get(ctx, c, srv.URL+"/test")
require.Nil(t, res)
assert.Equal(t, context.DeadlineExceeded, err)
assert.Equal(t, int32(2), atomic.LoadInt32(&callCnt))
// cancel while waiting on delay
atomic.StoreInt32(&callCnt, 0)
tr = NewTransport(nil, RetryAll(RetryMaxRetries(1), RetryStatusInterval(500, 600)), ConstDelay(2*time.Second))
c = &http.Client{
Transport: tr,
}
ctx, cancelFn = context.WithDeadline(context.Background(), time.Now().Add(time.Second))
defer cancelFn()
res, err = ctxhttp.Get(ctx, c, srv.URL+"/test")
require.Nil(t, res)
assert.Equal(t, context.DeadlineExceeded, err)
assert.Equal(t, int32(1), atomic.LoadInt32(&callCnt))
}
func NewTHttpClientWithCtx(urlstr string, ctx context.Context) (TTransport, error) {
parsedURL, err := url.Parse(urlstr)
if err != nil {
return nil, err
}
response, err := ctxhttp.Get(ctx, nil, urlstr)
if err != nil {
return nil, err
}
return &THttpClient{response: response, url: parsedURL, ctx: ctx}, nil
}
func (c *ArtifactStoreClient) getAPI(path string) (io.ReadCloser, *ArtifactsError) {
url := c.server + path
ctx, cancel := context.WithTimeout(c.ctx, c.timeout)
defer cancel()
if resp, err := ctxhttp.Get(ctx, nil, url); err != nil {
return nil, NewRetriableError(err.Error())
} else {
if resp.StatusCode != http.StatusOK {
return nil, determineResponseError(resp, url, "POST")
}
return resp.Body, nil
}
}
// WaitAuthorization polls an authorization at the given URL
// until it is in one of the final states, StatusValid or StatusInvalid,
// or the context is done.
//
// It returns a non-nil Authorization only if its Status is StatusValid.
// In all other cases WaitAuthorization returns an error.
// If the Status is StatusInvalid, the returned error is ErrAuthorizationFailed.
func (c *Client) WaitAuthorization(ctx context.Context, url string) (*Authorization, error) {
var count int
sleep := func(v string, inc int) error {
count += inc
d := backoff(count, 10*time.Second)
d = retryAfter(v, d)
wakeup := time.NewTimer(d)
defer wakeup.Stop()
select {
case <-ctx.Done():
return ctx.Err()
case <-wakeup.C:
return nil
}
}
for {
res, err := ctxhttp.Get(ctx, c.HTTPClient, url)
if err != nil {
return nil, err
}
retry := res.Header.Get("retry-after")
if res.StatusCode != http.StatusOK && res.StatusCode != http.StatusAccepted {
res.Body.Close()
if err := sleep(retry, 1); err != nil {
return nil, err
}
continue
}
var raw wireAuthz
err = json.NewDecoder(res.Body).Decode(&raw)
res.Body.Close()
if err != nil {
if err := sleep(retry, 0); err != nil {
return nil, err
}
continue
}
if raw.Status == StatusValid {
return raw.authorization(url), nil
}
if raw.Status == StatusInvalid {
return nil, ErrAuthorizationFailed
}
if err := sleep(retry, 0); err != nil {
return nil, err
}
}
}
func (f Fetcher) GetAll(ctx context.Context, urls []string) ([]*FetcherResponse, error) {
defer metrics.MeasureSince([]string{"fn.FetchRemoteData"}, time.Now())
fetches := make([]*FetcherResponse, len(urls))
var wg sync.WaitGroup
wg.Add(len(urls))
// TODO: add thruput here..
for i, urlStr := range urls {
fetches[i] = &FetcherResponse{}
go func(fetch *FetcherResponse) {
defer wg.Done()
url, err := urlx.Parse(urlStr)
if err != nil {
fetch.Err = err
return
}
fetch.URL = url
lg.Infof("Fetching %s", url.String())
resp, err := ctxhttp.Get(ctx, f.client(), url.String())
if err != nil {
lg.Warnf("Error fetching %s because %s", url.String(), err)
fetch.Err = err
return
}
defer resp.Body.Close()
fetch.Status = resp.StatusCode
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fetch.Err = err
return
}
fetch.Data = body
fetch.Err = nil
}(fetches[i])
}
wg.Wait()
return fetches, nil
}
// GetChallenge retrieves the current status of an challenge.
//
// A client typically polls a challenge status using this method.
func (c *Client) GetChallenge(ctx context.Context, url string) (*Challenge, error) {
res, err := ctxhttp.Get(ctx, c.HTTPClient, url)
if err != nil {
return nil, err
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK && res.StatusCode != http.StatusAccepted {
return nil, responseError(res)
}
v := wireChallenge{URI: url}
if err := json.NewDecoder(res.Body).Decode(&v); err != nil {
return nil, fmt.Errorf("acme: invalid response: %v", err)
}
return v.challenge(), nil
}
// GetAuthorization retrieves an authorization identified by the given URL.
//
// If a caller needs to poll an authorization until its status is final,
// see the WaitAuthorization method.
func (c *Client) GetAuthorization(ctx context.Context, url string) (*Authorization, error) {
res, err := ctxhttp.Get(ctx, c.HTTPClient, url)
if err != nil {
return nil, err
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK && res.StatusCode != http.StatusAccepted {
return nil, responseError(res)
}
var v wireAuthz
if err := json.NewDecoder(res.Body).Decode(&v); err != nil {
return nil, fmt.Errorf("acme: invalid response: %v", err)
}
return v.authorization(url), nil
}
func (h *HttpProbe) Probe(c ctx.Context) error {
resp, err := http.Get(c, nil, h.url)
if err != nil {
return ErrNotReachable
} else {
go func() {
defer resp.Body.Close()
io.Copy(ioutil.Discard, resp.Body)
}()
if resp.StatusCode != 200 {
return fmt.Errorf("%d: %s", resp.StatusCode, h.url)
} else {
return nil
}
}
}
func handleAddBookmark(ctx context.Context, w http.ResponseWriter, r *http.Request) {
var input struct {
Url string `json:"url"`
}
if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
web.JSONErr(w, err.Error(), http.StatusBadRequest)
return
}
resp, err := ctxhttp.Get(ctx, &crawler, input.Url)
if err != nil {
log.Error("cannot crawl",
"url", input.Url,
"error", err.Error())
web.StdJSONResp(w, http.StatusInternalServerError)
return
}
defer resp.Body.Close()
body := make([]byte, 1024*20)
if n, err := resp.Body.Read(body); err != nil && err != io.EOF {
log.Error("cannot read crawler response",
"url", input.Url,
"error", err.Error())
web.StdJSONResp(w, http.StatusInternalServerError)
return
} else {
body = body[:n]
}
title := pageTitle(body)
var b Bookmark
err = pg.DB(ctx).Get(&b, `
INSERT INTO bookmarks (title, url, created)
VALUES ($1, $2, $3)
ON CONFLICT DO NOTHING
RETURNING *
`, title, input.Url, time.Now())
if err != nil {
log.Error("cannot create bookmark", "error", err.Error())
web.StdJSONResp(w, http.StatusInternalServerError)
return
}
web.JSONResp(w, b, http.StatusCreated)
}
// changesetReader will return a ReadCloser with the data from the changeset.
// It will be gzip compressed, so the caller must decompress.
// It is the caller's responsibility to call Close on the Reader when done.
func (ds *Datasource) changesetReader(ctx context.Context, n ChangesetSeqNum) (io.ReadCloser, error) {
url := ds.changesetURL(n)
resp, err := ctxhttp.Get(ctx, ds.client(), url)
if err != nil {
return nil, err
}
if resp.StatusCode != 200 {
resp.Body.Close()
return nil, &UnexpectedStatusCodeError{
Code: resp.StatusCode,
URL: url,
}
}
return resp.Body, nil
}
func unsealInstance(ctx context.Context, instance string) error {
s := sealStatus{}
r, err := ctxhttp.Get(ctx, http.DefaultClient, instance+"/v1/sys/seal-status")
if err != nil {
return fmt.Errorf("[%s] An error ocurred while reading seal-status: %s", instance, err)
}
defer r.Body.Close()
if err := json.NewDecoder(r.Body).Decode(&s); err != nil {
return fmt.Errorf("[%s] Unable to decode seal-status: %s", instance, err)
}
if s.Sealed {
for _, token := range config.SealTokens {
log.Printf("[%s] Vault instance is sealed (missing %d tokens), trying to unlock...", instance, s.T-s.Progress)
body := bytes.NewBuffer([]byte{})
json.NewEncoder(body).Encode(map[string]interface{}{
"key": token,
})
r, _ := http.NewRequest("PUT", instance+"/v1/sys/unseal", body)
resp, err := ctxhttp.Do(ctx, http.DefaultClient, r)
if err != nil {
return fmt.Errorf("[%s] An error ocurred while doing unseal: %s", instance, err)
}
defer resp.Body.Close()
if err := json.NewDecoder(resp.Body).Decode(&s); err != nil {
return fmt.Errorf("[%s] Unable to decode seal-status: %s", instance, err)
}
if !s.Sealed {
log.Printf("[%s] Unseal successfully finished.", instance)
break
}
}
if s.Sealed {
log.Printf("[%s] Vault instance is still sealed (missing %d tokens), I don't have any more tokens.", instance, s.T-s.Progress)
}
} else {
log.Printf("[%s] Vault instance is already unsealed.", instance)
}
return nil
}
// Discover performs ACME server discovery using c.DirectoryURL.
//
// It caches successful result. So, subsequent calls will not result in
// a network round-trip. This also means mutating c.DirectoryURL after successful call
// of this method will have no effect.
func (c *Client) Discover(ctx context.Context) (Directory, error) {
c.dirMu.Lock()
defer c.dirMu.Unlock()
if c.dir != nil {
return *c.dir, nil
}
dirURL := c.DirectoryURL
if dirURL == "" {
dirURL = LetsEncryptURL
}
res, err := ctxhttp.Get(ctx, c.HTTPClient, dirURL)
if err != nil {
return Directory{}, err
}
defer res.Body.Close()
if res.StatusCode != http.StatusOK {
return Directory{}, responseError(res)
}
var v struct {
Reg string `json:"new-reg"`
Authz string `json:"new-authz"`
Cert string `json:"new-cert"`
Revoke string `json:"revoke-cert"`
Meta struct {
Terms string `json:"terms-of-service"`
Website string `json:"website"`
CAA []string `json:"caa-identities"`
}
}
if json.NewDecoder(res.Body).Decode(&v); err != nil {
return Directory{}, err
}
c.dir = &Directory{
RegURL: v.Reg,
AuthzURL: v.Authz,
CertURL: v.Cert,
RevokeURL: v.Revoke,
Terms: v.Meta.Terms,
Website: v.Meta.Website,
CAA: v.Meta.CAA,
}
return *c.dir, nil
}
func ListProxyReq() (output chan *Response) {
var (
wg sync.WaitGroup
root = ctx.Background()
v = make(chan *Response, 1)
)
go func() {
defer close(v)
for _, endpoint := range Endpoint {
wg.Add(1)
go func(ep string) {
defer wg.Done()
wk, abort := ctx.WithTimeout(root, DefaultTimeout)
defer abort()
resp, err := ctxhttp.Get(wk, nil, ep+"/proxy/list")
if err != nil {
v <- &Response{Host: ep, Err: err}
return
}
defer resp.Body.Close()
inn := new(bytes.Buffer)
_, err = inn.ReadFrom(resp.Body)
if err != nil {
v <- &Response{Host: ep, Err: err}
return
}
v <- &Response{Host: ep, Data: inn.Bytes()}
}(endpoint)
}
wg.Wait()
}()
return v
}
func (ds *Datasource) fetchIntervalData(ctx context.Context, url string) (*osm.Change, error) {
resp, err := ctxhttp.Get(ctx, ds.client(), url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return nil, fmt.Errorf("incorrect status code: %v", resp.StatusCode)
}
gzReader, err := gzip.NewReader(resp.Body)
if err != nil {
return nil, err
}
defer gzReader.Close()
change := &osm.Change{}
err = xml.NewDecoder(gzReader).Decode(change)
return change, err
}
func (p *Plugin) get(path string, params url.Values, result interface{}) error {
// Context here lets us either timeout req. or cancel it in Plugin.Close
ctx, cancel := context.WithTimeout(p.context, pluginTimeout)
defer cancel()
resp, err := ctxhttp.Get(ctx, p.client, fmt.Sprintf("http://plugin%s?%s", path, params.Encode()))
if err != nil {
return err
}
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("plugin returned non-200 status code: %s", resp.Status)
}
defer resp.Body.Close()
err = codec.NewDecoder(MaxBytesReader(resp.Body, maxResponseBytes, errResponseTooLarge), &codec.JsonHandle{}).Decode(&result)
if err == errResponseTooLarge {
return err
}
if err != nil {
return fmt.Errorf("decoding error: %s", err)
}
return nil
}
func (n *Ngrok) Start(subdomain, localAddr string) (string, error) {
if n.process != nil {
return "", errors.New("ngrok tunnel is already running")
}
if subdomain == "" {
subdomain = utils.RandString(12)
}
p := n.cmd("-log", "stdout", "-authtoken", Test.NgrokToken, "-subdomain", subdomain, localAddr)
if err := p.Start(); err != nil {
return "", err
}
// wait for tunnel to get up
tunnelHost := subdomain + ".ngrok.com"
tunnelURL := "http://" + tunnelHost
ctx, cancel := context.WithTimeout(context.Background(), n.StartTimeout)
defer cancel()
for {
resp, err := ctxhttp.Get(ctx, nil, tunnelURL)
if err == context.DeadlineExceeded {
return "", fmt.Errorf("timed out after %s waiting for %s to be ready", n.StartTimeout, tunnelURL)
}
if err == nil {
resp.Body.Close()
// 404 means tunnel not found
if resp.StatusCode != http.StatusNotFound {
n.process = p
return tunnelHost, nil
}
}
time.Sleep(1 * time.Second)
}
}
func get(ctx context.Context, client *http.Client, url string) (gonzo.File, error) {
resp, err := ctxhttp.Get(ctx, client, url)
if err != nil {
return nil, err
}
if resp.StatusCode < 200 || resp.StatusCode > 399 {
return nil, fmt.Errorf("%s (%s)", resp.Status, url)
}
_, params, err := mime.ParseMediaType(resp.Header.Get("Content-Disposition"))
name, ok := params["filename"]
if !ok || err != nil {
name = path.Base(url)
}
file := gonzo.NewFile(resp.Body, gonzo.NewFileInfo())
file.FileInfo().SetName(name)
file.FileInfo().SetSize(resp.ContentLength)
return file, nil
}
// CurrentChangesetState returns the current state of the changeset replication.
func (ds *Datasource) CurrentChangesetState(ctx context.Context) (ChangesetSeqNum, State, error) {
url := ds.baseURL() + "/replication/changesets/state.yaml"
resp, err := ctxhttp.Get(ctx, ds.client(), url)
if err != nil {
return 0, State{}, err
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return 0, State{}, &UnexpectedStatusCodeError{
Code: resp.StatusCode,
URL: url,
}
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return 0, State{}, err
}
s, err := decodeChangesetState(data)
return ChangesetSeqNum(s.SeqNum), s, err
}
// Ready returns true if the API is ready
func (f *Forensiq) Ready(ctx context.Context) (bool, error) {
var (
uri *url.URL
b []byte
err error
sts = xstats.FromContext(ctx)
)
{
uri, err = url.Parse(f.Host)
if err != nil {
return false, err
}
uri.Path = "/ready"
}
{
begin := time.Now()
resp, err := ctxhttp.Get(ctx, f.httpClient, uri.String())
if err != nil {
return false, err
}
defer resp.Body.Close()
sts.Timing("forensiq.request_time", time.Since(begin),
"request:ready",
"status:"+responseStatus(ctx, resp.StatusCode),
"status_code:"+strconv.Itoa(resp.StatusCode),
)
b, err = ioutil.ReadAll(resp.Body)
if err != nil {
return false, err
}
}
return string(b) == "1", nil
}