Updating server dependancies (#5249)

9 files changed, 128 insertions, 101 deletions

diff --git a/vendor/github.com/xenolf/lego/README.md b/vendor/github.com/xenolf/lego/README.md
index 136bc5548..9be562944 100644
--- a/vendor/github.com/xenolf/lego/README.md
+++ b/vendor/github.com/xenolf/lego/README.md
@@ -244,7 +244,7 @@ if err != nil {
 // The acme library takes care of completing the challenges to obtain the certificate(s).
 // The domains must resolve to this machine or you have to use the DNS challenge.
 bundle := false
-certificates, failures := client.ObtainCertificate([]string{"mydomain.com"}, bundle, nil)
+certificates, failures := client.ObtainCertificate([]string{"mydomain.com"}, bundle, nil, false)
 if len(failures) > 0 {
 	log.Fatal(failures)
 }
diff --git a/vendor/github.com/xenolf/lego/acme/client.go b/vendor/github.com/xenolf/lego/acme/client.go
index 9f837af36..e824f5080 100644
--- a/vendor/github.com/xenolf/lego/acme/client.go
+++ b/vendor/github.com/xenolf/lego/acme/client.go
@@ -11,6 +11,7 @@ import (
 	"io/ioutil"
 	"log"
 	"net"
+	"net/http"
 	"regexp"
 	"strconv"
 	"strings"
@@ -22,6 +23,9 @@ var (
 	Logger *log.Logger
 )
 
+// maxBodySize is the maximum size of body that we will read.
+const maxBodySize = 1024 * 1024
+
 // logf writes a log entry. It uses Logger if not
 // nil, otherwise it uses the default log.Logger.
 func logf(format string, args ...interface{}) {
@@ -49,12 +53,11 @@ type validateFunc func(j *jws, domain, uri string, chlng challenge) error
 
 // Client is the user-friendy way to ACME
 type Client struct {
-	directory  directory
-	user       User
-	jws        *jws
-	keyType    KeyType
-	issuerCert []byte
-	solvers    map[Challenge]solver
+	directory directory
+	user      User
+	jws       *jws
+	keyType   KeyType
+	solvers   map[Challenge]solver
 }
 
 // NewClient creates a new ACME client on behalf of the user. The client will depend on
@@ -611,89 +614,108 @@ func (c *Client) requestCertificateForCsr(authz []authorizationResource, bundle
 		return CertificateResource{}, err
 	}
 
-	cerRes := CertificateResource{
+	certRes := CertificateResource{
 		Domain:     commonName.Domain,
 		CertURL:    resp.Header.Get("Location"),
-		PrivateKey: privateKeyPem}
+		PrivateKey: privateKeyPem,
+	}
 
-	for {
-		switch resp.StatusCode {
-		case 201, 202:
-			cert, err := ioutil.ReadAll(limitReader(resp.Body, 1024*1024))
-			resp.Body.Close()
-			if err != nil {
-				return CertificateResource{}, err
-			}
+	maxChecks := 1000
+	for i := 0; i < maxChecks; i++ {
+		done, err := c.checkCertResponse(resp, &certRes, bundle)
+		resp.Body.Close()
+		if err != nil {
+			return CertificateResource{}, err
+		}
+		if done {
+			break
+		}
+		if i == maxChecks-1 {
+			return CertificateResource{}, fmt.Errorf("polled for certificate %d times; giving up", i)
+		}
+		resp, err = httpGet(certRes.CertURL)
+		if err != nil {
+			return CertificateResource{}, err
+		}
+	}
+
+	return certRes, nil
+}
+
+// checkCertResponse checks resp to see if a certificate is contained in the
+// response, and if so, loads it into certRes and returns true. If the cert
+// is not yet ready, it returns false. This function honors the waiting period
+// required by the Retry-After header of the response, if specified. This
+// function may read from resp.Body but does NOT close it. The certRes input
+// should already have the Domain (common name) field populated. If bundle is
+// true, the certificate will be bundled with the issuer's cert.
+func (c *Client) checkCertResponse(resp *http.Response, certRes *CertificateResource, bundle bool) (bool, error) {
+	switch resp.StatusCode {
+	case 201, 202:
+		cert, err := ioutil.ReadAll(limitReader(resp.Body, maxBodySize))
+		if err != nil {
+			return false, err
+		}
+
+		// The server returns a body with a length of zero if the
+		// certificate was not ready at the time this request completed.
+		// Otherwise the body is the certificate.
+		if len(cert) > 0 {
+			certRes.CertStableURL = resp.Header.Get("Content-Location")
+			certRes.AccountRef = c.user.GetRegistration().URI
 
-			// The server returns a body with a length of zero if the
-			// certificate was not ready at the time this request completed.
-			// Otherwise the body is the certificate.
-			if len(cert) > 0 {
+			issuedCert := pemEncode(derCertificateBytes(cert))
 
-				cerRes.CertStableURL = resp.Header.Get("Content-Location")
-				cerRes.AccountRef = c.user.GetRegistration().URI
+			// The issuer certificate link is always supplied via an "up" link
+			// in the response headers of a new certificate.
+			links := parseLinks(resp.Header["Link"])
+			issuerCert, err := c.getIssuerCertificate(links["up"])
+			if err != nil {
+				// If we fail to acquire the issuer cert, return the issued certificate - do not fail.
+				logf("[WARNING][%s] acme: Could not bundle issuer certificate: %v", certRes.Domain, err)
+			} else {
+				issuerCert = pemEncode(derCertificateBytes(issuerCert))
 
-				issuedCert := pemEncode(derCertificateBytes(cert))
 				// If bundle is true, we want to return a certificate bundle.
-				// To do this, we need the issuer certificate.
+				// To do this, we append the issuer cert to the issued cert.
 				if bundle {
-					// The issuer certificate link is always supplied via an "up" link
-					// in the response headers of a new certificate.
-					links := parseLinks(resp.Header["Link"])
-					issuerCert, err := c.getIssuerCertificate(links["up"])
-					if err != nil {
-						// If we fail to acquire the issuer cert, return the issued certificate - do not fail.
-						logf("[WARNING][%s] acme: Could not bundle issuer certificate: %v", commonName.Domain, err)
-					} else {
-						// Success - append the issuer cert to the issued cert.
-						issuerCert = pemEncode(derCertificateBytes(issuerCert))
-						issuedCert = append(issuedCert, issuerCert...)
-					}
+					issuedCert = append(issuedCert, issuerCert...)
 				}
-
-				cerRes.Certificate = issuedCert
-				logf("[INFO][%s] Server responded with a certificate.", commonName.Domain)
-				return cerRes, nil
-			}
-
-			// The certificate was granted but is not yet issued.
-			// Check retry-after and loop.
-			ra := resp.Header.Get("Retry-After")
-			retryAfter, err := strconv.Atoi(ra)
-			if err != nil {
-				return CertificateResource{}, err
 			}
 
-			logf("[INFO][%s] acme: Server responded with status 202; retrying after %ds", commonName.Domain, retryAfter)
-			time.Sleep(time.Duration(retryAfter) * time.Second)
-
-			break
-		default:
-			return CertificateResource{}, handleHTTPError(resp)
+			certRes.Certificate = issuedCert
+			certRes.IssuerCertificate = issuerCert
+			logf("[INFO][%s] Server responded with a certificate.", certRes.Domain)
+			return true, nil
 		}
 
-		resp, err = httpGet(cerRes.CertURL)
+		// The certificate was granted but is not yet issued.
+		// Check retry-after and loop.
+		ra := resp.Header.Get("Retry-After")
+		retryAfter, err := strconv.Atoi(ra)
 		if err != nil {
-			return CertificateResource{}, err
+			return false, err
 		}
+
+		logf("[INFO][%s] acme: Server responded with status 202; retrying after %ds", certRes.Domain, retryAfter)
+		time.Sleep(time.Duration(retryAfter) * time.Second)
+
+		return false, nil
+	default:
+		return false, handleHTTPError(resp)
 	}
 }
 
-// getIssuerCertificate requests the issuer certificate and caches it for
-// subsequent requests.
+// getIssuerCertificate requests the issuer certificate
 func (c *Client) getIssuerCertificate(url string) ([]byte, error) {
 	logf("[INFO] acme: Requesting issuer cert from %s", url)
-	if c.issuerCert != nil {
-		return c.issuerCert, nil
-	}
-
 	resp, err := httpGet(url)
 	if err != nil {
 		return nil, err
 	}
 	defer resp.Body.Close()
 
-	issuerBytes, err := ioutil.ReadAll(limitReader(resp.Body, 1024*1024))
+	issuerBytes, err := ioutil.ReadAll(limitReader(resp.Body, maxBodySize))
 	if err != nil {
 		return nil, err
 	}
@@ -703,7 +725,6 @@ func (c *Client) getIssuerCertificate(url string) ([]byte, error) {
 		return nil, err
 	}
 
-	c.issuerCert = issuerBytes
 	return issuerBytes, err
 }
 
diff --git a/vendor/github.com/xenolf/lego/acme/crypto.go b/vendor/github.com/xenolf/lego/acme/crypto.go
index c63b23b99..fa868a90d 100644
--- a/vendor/github.com/xenolf/lego/acme/crypto.go
+++ b/vendor/github.com/xenolf/lego/acme/crypto.go
@@ -226,7 +226,7 @@ func generateCsr(privateKey crypto.PrivateKey, domain string, san []string, must
 	}
 
 	if mustStaple {
-		template.Extensions = append(template.Extensions, pkix.Extension{
+		template.ExtraExtensions = append(template.ExtraExtensions, pkix.Extension{
 			Id:    tlsFeatureExtensionOID,
 			Value: ocspMustStapleFeature,
 		})
diff --git a/vendor/github.com/xenolf/lego/acme/error.go b/vendor/github.com/xenolf/lego/acme/error.go
index 2aa690b33..6d7013cf1 100644
--- a/vendor/github.com/xenolf/lego/acme/error.go
+++ b/vendor/github.com/xenolf/lego/acme/error.go
@@ -8,9 +8,7 @@ import (
 	"strings"
 )
 
-const (
-	tosAgreementError = "Must agree to subscriber agreement before any further actions"
-)
+const tosAgreementError = "Must agree to subscriber agreement before any further actions"
 
 // RemoteError is the base type for all errors specific to the ACME protocol.
 type RemoteError struct {
@@ -54,20 +52,17 @@ func (c challengeError) Error() string {
 func handleHTTPError(resp *http.Response) error {
 	var errorDetail RemoteError
 
-	contenType := resp.Header.Get("Content-Type")
-	// try to decode the content as JSON
-	if contenType == "application/json" || contenType == "application/problem+json" {
-		decoder := json.NewDecoder(resp.Body)
-		err := decoder.Decode(&errorDetail)
+	contentType := resp.Header.Get("Content-Type")
+	if contentType == "application/json" || contentType == "application/problem+json" {
+		err := json.NewDecoder(resp.Body).Decode(&errorDetail)
 		if err != nil {
 			return err
 		}
 	} else {
-		detailBytes, err := ioutil.ReadAll(limitReader(resp.Body, 1024*1024))
+		detailBytes, err := ioutil.ReadAll(limitReader(resp.Body, maxBodySize))
 		if err != nil {
 			return err
 		}
-
 		errorDetail.Detail = string(detailBytes)
 	}
 
diff --git a/vendor/github.com/xenolf/lego/acme/jws.go b/vendor/github.com/xenolf/lego/acme/jws.go
index f70513e38..2a1fc244d 100644
--- a/vendor/github.com/xenolf/lego/acme/jws.go
+++ b/vendor/github.com/xenolf/lego/acme/jws.go
@@ -32,7 +32,9 @@ func keyAsJWK(key interface{}) *jose.JsonWebKey {
 	}
 }
 
-// Posts a JWS signed message to the specified URL
+// Posts a JWS signed message to the specified URL.
+// It does NOT close the response body, so the caller must
+// do that if no error was returned.
 func (j *jws) post(url string, content []byte) (*http.Response, error) {
 	signedContent, err := j.signContent(content)
 	if err != nil {
@@ -44,6 +46,8 @@ func (j *jws) post(url string, content []byte) (*http.Response, error) {
 		return nil, err
 	}
 
+	j.Lock()
+	defer j.Unlock()
 	j.getNonceFromResponse(resp)
 
 	return resp, err
@@ -77,8 +81,6 @@ func (j *jws) signContent(content []byte) (*jose.JsonWebSignature, error) {
 }
 
 func (j *jws) getNonceFromResponse(resp *http.Response) error {
-	j.Lock()
-	defer j.Unlock()
 	nonce := resp.Header.Get("Replay-Nonce")
 	if nonce == "" {
 		return fmt.Errorf("Server did not respond with a proper nonce header.")
@@ -98,6 +100,8 @@ func (j *jws) getNonce() error {
 }
 
 func (j *jws) Nonce() (string, error) {
+	j.Lock()
+	defer j.Unlock()
 	nonce := ""
 	if len(j.nonces) == 0 {
 		err := j.getNonce()
@@ -108,8 +112,6 @@ func (j *jws) Nonce() (string, error) {
 	if len(j.nonces) == 0 {
 		return "", fmt.Errorf("Can't get nonce")
 	}
-	j.Lock()
-	defer j.Unlock()
 	nonce, j.nonces = j.nonces[len(j.nonces)-1], j.nonces[:len(j.nonces)-1]
 	return nonce, nil
 }
diff --git a/vendor/github.com/xenolf/lego/acme/messages.go b/vendor/github.com/xenolf/lego/acme/messages.go
index 0f6514c3f..36db3b217 100644
--- a/vendor/github.com/xenolf/lego/acme/messages.go
+++ b/vendor/github.com/xenolf/lego/acme/messages.go
@@ -94,16 +94,17 @@ type revokeCertMessage struct {
 }
 
 // CertificateResource represents a CA issued certificate.
-// PrivateKey and Certificate are both already PEM encoded
-// and can be directly written to disk. Certificate may
-// be a certificate bundle, depending on the options supplied
-// to create it.
+// PrivateKey, Certificate and IssuerCertificate are all
+// already PEM encoded and can be directly written to disk.
+// Certificate may be a certificate bundle, depending on the
+// options supplied to create it.
 type CertificateResource struct {
-	Domain        string `json:"domain"`
-	CertURL       string `json:"certUrl"`
-	CertStableURL string `json:"certStableUrl"`
-	AccountRef    string `json:"accountRef,omitempty"`
-	PrivateKey    []byte `json:"-"`
-	Certificate   []byte `json:"-"`
-	CSR           []byte `json:"-"`
+	Domain            string `json:"domain"`
+	CertURL           string `json:"certUrl"`
+	CertStableURL     string `json:"certStableUrl"`
+	AccountRef        string `json:"accountRef,omitempty"`
+	PrivateKey        []byte `json:"-"`
+	Certificate       []byte `json:"-"`
+	IssuerCertificate []byte `json:"-"`
+	CSR               []byte `json:"-"`
 }
diff --git a/vendor/github.com/xenolf/lego/cli_handlers.go b/vendor/github.com/xenolf/lego/cli_handlers.go
index 858d71000..dad19a144 100644
--- a/vendor/github.com/xenolf/lego/cli_handlers.go
+++ b/vendor/github.com/xenolf/lego/cli_handlers.go
@@ -136,12 +136,20 @@ func saveCertRes(certRes acme.CertificateResource, conf *Configuration) {
 	privOut := path.Join(conf.CertPath(), certRes.Domain+".key")
 	pemOut := path.Join(conf.CertPath(), certRes.Domain+".pem")
 	metaOut := path.Join(conf.CertPath(), certRes.Domain+".json")
+	issuerOut := path.Join(conf.CertPath(), certRes.Domain+".issuer.crt")
 
 	err := ioutil.WriteFile(certOut, certRes.Certificate, 0600)
 	if err != nil {
 		logger().Fatalf("Unable to save Certificate for domain %s\n\t%s", certRes.Domain, err.Error())
 	}
 
+	if certRes.IssuerCertificate != nil {
+		err = ioutil.WriteFile(issuerOut, certRes.IssuerCertificate, 0600)
+		if err != nil {
+			logger().Fatalf("Unable to save IssuerCertificate for domain %s\n\t%s", certRes.Domain, err.Error())
+		}
+	}
+
 	if certRes.PrivateKey != nil {
 		// if we were given a CSR, we don't know the private key
 		err = ioutil.WriteFile(privOut, certRes.PrivateKey, 0600)
diff --git a/vendor/github.com/xenolf/lego/providers/dns/azure/azure.go b/vendor/github.com/xenolf/lego/providers/dns/azure/azure.go
index 6742e4f56..9d281cd69 100644
--- a/vendor/github.com/xenolf/lego/providers/dns/azure/azure.go
+++ b/vendor/github.com/xenolf/lego/providers/dns/azure/azure.go
@@ -72,7 +72,7 @@ func (c *DNSProvider) Present(domain, token, keyAuth string) error {
 	relative := toRelativeRecord(fqdn, acme.ToFqdn(zone))
 	rec := dns.RecordSet{
 		Name: &relative,
-		Properties: &dns.RecordSetProperties{
+		RecordSetProperties: &dns.RecordSetProperties{
 			TTL:        to.Int64Ptr(60),
 			TXTRecords: &[]dns.TxtRecord{dns.TxtRecord{Value: &[]string{value}}},
 		},
@@ -103,7 +103,7 @@ func (c *DNSProvider) CleanUp(domain, token, keyAuth string) error {
 	relative := toRelativeRecord(fqdn, acme.ToFqdn(zone))
 	rsc := dns.NewRecordSetsClient(c.subscriptionId)
 	rsc.Authorizer, err = c.newServicePrincipalTokenFromCredentials(azure.PublicCloud.ResourceManagerEndpoint)
-	_, err = rsc.Delete(c.resourceGroup, zone, relative, dns.TXT, "", "")
+	_, err = rsc.Delete(c.resourceGroup, zone, relative, dns.TXT, "")
 	if err != nil {
 		return err
 	}
diff --git a/vendor/github.com/xenolf/lego/providers/dns/vultr/vultr.go b/vendor/github.com/xenolf/lego/providers/dns/vultr/vultr.go
index 53804e270..bc2067579 100644
--- a/vendor/github.com/xenolf/lego/providers/dns/vultr/vultr.go
+++ b/vendor/github.com/xenolf/lego/providers/dns/vultr/vultr.go
@@ -49,7 +49,7 @@ func (c *DNSProvider) Present(domain, token, keyAuth string) error {
 
 	name := c.extractRecordName(fqdn, zoneDomain)
 
-	err = c.client.CreateDnsRecord(zoneDomain, name, "TXT", `"`+value+`"`, 0, ttl)
+	err = c.client.CreateDNSRecord(zoneDomain, name, "TXT", `"`+value+`"`, 0, ttl)
 	if err != nil {
 		return fmt.Errorf("Vultr API call failed: %v", err)
 	}
@@ -67,7 +67,7 @@ func (c *DNSProvider) CleanUp(domain, token, keyAuth string) error {
 	}
 
 	for _, rec := range records {
-		err := c.client.DeleteDnsRecord(zoneDomain, rec.RecordID)
+		err := c.client.DeleteDNSRecord(zoneDomain, rec.RecordID)
 		if err != nil {
 			return err
 		}
@@ -76,12 +76,12 @@ func (c *DNSProvider) CleanUp(domain, token, keyAuth string) error {
 }
 
 func (c *DNSProvider) getHostedZone(domain string) (string, error) {
-	domains, err := c.client.GetDnsDomains()
+	domains, err := c.client.GetDNSDomains()
 	if err != nil {
 		return "", fmt.Errorf("Vultr API call failed: %v", err)
 	}
 
-	var hostedDomain vultr.DnsDomain
+	var hostedDomain vultr.DNSDomain
 	for _, d := range domains {
 		if strings.HasSuffix(domain, d.Domain) {
 			if len(d.Domain) > len(hostedDomain.Domain) {
@@ -96,14 +96,14 @@ func (c *DNSProvider) getHostedZone(domain string) (string, error) {
 	return hostedDomain.Domain, nil
 }
 
-func (c *DNSProvider) findTxtRecords(domain, fqdn string) (string, []vultr.DnsRecord, error) {
+func (c *DNSProvider) findTxtRecords(domain, fqdn string) (string, []vultr.DNSRecord, error) {
 	zoneDomain, err := c.getHostedZone(domain)
 	if err != nil {
 		return "", nil, err
 	}
 
-	var records []vultr.DnsRecord
-	result, err := c.client.GetDnsRecords(zoneDomain)
+	var records []vultr.DNSRecord
+	result, err := c.client.GetDNSRecords(zoneDomain)
 	if err != nil {
 		return "", records, fmt.Errorf("Vultr API call has failed: %v", err)
 	}