Update vendor (#1461)

* Update vendored libs

* Fix slack api changes

5 files changed, 62 insertions, 49 deletions

diff --git a/vendor/github.com/labstack/echo/v4/middleware/middleware.go b/vendor/github.com/labstack/echo/v4/middleware/middleware.go
index 6bdb0eb7..a7ad73a5 100644
--- a/vendor/github.com/labstack/echo/v4/middleware/middleware.go
+++ b/vendor/github.com/labstack/echo/v4/middleware/middleware.go
@@ -2,7 +2,6 @@ package middleware
 
 import (
 	"net/http"
-	"net/url"
 	"regexp"
 	"strconv"
 	"strings"
@@ -49,30 +48,39 @@ func rewriteRulesRegex(rewrite map[string]string) map[*regexp.Regexp]string {
 	return rulesRegex
 }
 
-func rewritePath(rewriteRegex map[*regexp.Regexp]string, req *http.Request) {
-	for k, v := range rewriteRegex {
-		rawPath := req.URL.RawPath
-		if rawPath != "" {
-			// RawPath is only set when there has been escaping done. In that case Path must be deduced from rewritten RawPath
-			// because encoded Path could match rules that RawPath did not
-			if replacer := captureTokens(k, rawPath); replacer != nil {
-				rawPath = replacer.Replace(v)
-
-				req.URL.RawPath = rawPath
-				req.URL.Path, _ = url.PathUnescape(rawPath)
-
-				return // rewrite only once
-			}
+func rewriteURL(rewriteRegex map[*regexp.Regexp]string, req *http.Request) error {
+	if len(rewriteRegex) == 0 {
+		return nil
+	}
 
-			continue
+	// Depending how HTTP request is sent RequestURI could contain Scheme://Host/path or be just /path.
+	// We only want to use path part for rewriting and therefore trim prefix if it exists
+	rawURI := req.RequestURI
+	if rawURI != "" && rawURI[0] != '/' {
+		prefix := ""
+		if req.URL.Scheme != "" {
+			prefix = req.URL.Scheme + "://"
 		}
+		if req.URL.Host != "" {
+			prefix += req.URL.Host // host or host:port
+		}
+		if prefix != "" {
+			rawURI = strings.TrimPrefix(rawURI, prefix)
+		}
+	}
 
-		if replacer := captureTokens(k, req.URL.Path); replacer != nil {
-			req.URL.Path = replacer.Replace(v)
+	for k, v := range rewriteRegex {
+		if replacer := captureTokens(k, rawURI); replacer != nil {
+			url, err := req.URL.Parse(replacer.Replace(v))
+			if err != nil {
+				return err
+			}
+			req.URL = url
 
-			return // rewrite only once
+			return nil // rewrite only once
 		}
 	}
+	return nil
 }
 
 // DefaultSkipper returns false which processes the middleware.
diff --git a/vendor/github.com/labstack/echo/v4/middleware/proxy.go b/vendor/github.com/labstack/echo/v4/middleware/proxy.go
index 63eec5a2..6f01f3a7 100644
--- a/vendor/github.com/labstack/echo/v4/middleware/proxy.go
+++ b/vendor/github.com/labstack/echo/v4/middleware/proxy.go
@@ -231,8 +231,9 @@ func ProxyWithConfig(config ProxyConfig) echo.MiddlewareFunc {
 			tgt := config.Balancer.Next(c)
 			c.Set(config.ContextKey, tgt)
 
-			// Set rewrite path and raw path
-			rewritePath(config.RegexRewrite, req)
+			if err := rewriteURL(config.RegexRewrite, req); err != nil {
+				return err
+			}
 
 			// Fix header
 			// Basically it's not good practice to unconditionally pass incoming x-real-ip header to upstream.
diff --git a/vendor/github.com/labstack/echo/v4/middleware/redirect.go b/vendor/github.com/labstack/echo/v4/middleware/redirect.go
index 813e5b85..13877db3 100644
--- a/vendor/github.com/labstack/echo/v4/middleware/redirect.go
+++ b/vendor/github.com/labstack/echo/v4/middleware/redirect.go
@@ -2,6 +2,7 @@ package middleware
 
 import (
 	"net/http"
+	"strings"
 
 	"github.com/labstack/echo/v4"
 )
@@ -40,11 +41,11 @@ func HTTPSRedirect() echo.MiddlewareFunc {
 // HTTPSRedirectWithConfig returns an HTTPSRedirect middleware with config.
 // See `HTTPSRedirect()`.
 func HTTPSRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
-	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
-		if ok = scheme != "https"; ok {
-			url = "https://" + host + uri
+	return redirect(config, func(scheme, host, uri string) (bool, string) {
+		if scheme != "https" {
+			return true, "https://" + host + uri
 		}
-		return
+		return false, ""
 	})
 }
 
@@ -59,11 +60,11 @@ func HTTPSWWWRedirect() echo.MiddlewareFunc {
 // HTTPSWWWRedirectWithConfig returns an HTTPSRedirect middleware with config.
 // See `HTTPSWWWRedirect()`.
 func HTTPSWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
-	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
-		if ok = scheme != "https" && host[:4] != www; ok {
-			url = "https://www." + host + uri
+	return redirect(config, func(scheme, host, uri string) (bool, string) {
+		if scheme != "https" && !strings.HasPrefix(host, www) {
+			return true, "https://www." + host + uri
 		}
-		return
+		return false, ""
 	})
 }
 
@@ -79,13 +80,11 @@ func HTTPSNonWWWRedirect() echo.MiddlewareFunc {
 // See `HTTPSNonWWWRedirect()`.
 func HTTPSNonWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
 	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
-		if ok = scheme != "https"; ok {
-			if host[:4] == www {
-				host = host[4:]
-			}
-			url = "https://" + host + uri
+		if scheme != "https" {
+			host = strings.TrimPrefix(host, www)
+			return true, "https://" + host + uri
 		}
-		return
+		return false, ""
 	})
 }
 
@@ -100,11 +99,11 @@ func WWWRedirect() echo.MiddlewareFunc {
 // WWWRedirectWithConfig returns an HTTPSRedirect middleware with config.
 // See `WWWRedirect()`.
 func WWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
-	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
-		if ok = host[:4] != www; ok {
-			url = scheme + "://www." + host + uri
+	return redirect(config, func(scheme, host, uri string) (bool, string) {
+		if !strings.HasPrefix(host, www) {
+			return true, scheme + "://www." + host + uri
 		}
-		return
+		return false, ""
 	})
 }
 
@@ -119,17 +118,17 @@ func NonWWWRedirect() echo.MiddlewareFunc {
 // NonWWWRedirectWithConfig returns an HTTPSRedirect middleware with config.
 // See `NonWWWRedirect()`.
 func NonWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc {
-	return redirect(config, func(scheme, host, uri string) (ok bool, url string) {
-		if ok = host[:4] == www; ok {
-			url = scheme + "://" + host[4:] + uri
+	return redirect(config, func(scheme, host, uri string) (bool, string) {
+		if strings.HasPrefix(host, www) {
+			return true, scheme + "://" + host[4:] + uri
 		}
-		return
+		return false, ""
 	})
 }
 
 func redirect(config RedirectConfig, cb redirectLogic) echo.MiddlewareFunc {
 	if config.Skipper == nil {
-		config.Skipper = DefaultTrailingSlashConfig.Skipper
+		config.Skipper = DefaultRedirectConfig.Skipper
 	}
 	if config.Code == 0 {
 		config.Code = DefaultRedirectConfig.Code
diff --git a/vendor/github.com/labstack/echo/v4/middleware/rewrite.go b/vendor/github.com/labstack/echo/v4/middleware/rewrite.go
index c05d5d84..e5b0a6b5 100644
--- a/vendor/github.com/labstack/echo/v4/middleware/rewrite.go
+++ b/vendor/github.com/labstack/echo/v4/middleware/rewrite.go
@@ -72,9 +72,9 @@ func RewriteWithConfig(config RewriteConfig) echo.MiddlewareFunc {
 				return next(c)
 			}
 
-			req := c.Request()
-			// Set rewrite path and raw path
-			rewritePath(config.RegexRules, req)
+			if err := rewriteURL(config.RegexRules, c.Request()); err != nil {
+				return err
+			}
 			return next(c)
 		}
 	}
diff --git a/vendor/github.com/labstack/echo/v4/middleware/timeout.go b/vendor/github.com/labstack/echo/v4/middleware/timeout.go
index 68f464e4..5d23ff45 100644
--- a/vendor/github.com/labstack/echo/v4/middleware/timeout.go
+++ b/vendor/github.com/labstack/echo/v4/middleware/timeout.go
@@ -42,8 +42,8 @@ var (
 	}
 )
 
-// Timeout returns a middleware which recovers from panics anywhere in the chain
-// and handles the control to the centralized HTTPErrorHandler.
+// Timeout returns a middleware which returns error (503 Service Unavailable error) to client immediately when handler
+// call runs for longer than its time limit. NB: timeout does not stop handler execution.
 func Timeout() echo.MiddlewareFunc {
 	return TimeoutWithConfig(DefaultTimeoutConfig)
 }
@@ -106,6 +106,11 @@ func (t echoHandlerFuncWrapper) ServeHTTP(rw http.ResponseWriter, r *http.Reques
 	// so on timeout writer stays what http.TimeoutHandler uses and prevents writing headers/body
 	t.ctx.Response().Writer = originalWriter
 	if err != nil {
+		// call global error handler to write error to the client. This is needed or `http.TimeoutHandler` will send status code by itself
+		// and after that our tries to write status code will not work anymore
+		t.ctx.Error(err)
+		// we pass error from handler to middlewares up in handler chain to act on it if needed. But this means that
+		// global error handler is probably be called twice as `t.ctx.Error` already does that.
 		t.errChan <- err
 	}
 }