Add a configurable URL redirect parameter for error URLs
This commit is contained in:
Ian Buss
parent
3d1acf6db0
commit
41cf628bdf
11 changed files with 233 additions and 86 deletions
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@ -704,7 +704,7 @@ func NewDefault() Configuration {
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defNginxStatusIpv4Whitelist = append(defNginxStatusIpv4Whitelist, "127.0.0.1")
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defNginxStatusIpv6Whitelist = append(defNginxStatusIpv6Whitelist, "::1")
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defProxyDeadlineDuration := time.Duration(5) * time.Second
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defGlobalExternalAuth := GlobalExternalAuth{"", "", "", "", append(defResponseHeaders, ""), "", "", "", []string{}, map[string]string{}}
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defGlobalExternalAuth := GlobalExternalAuth{"", "", "", "", "", append(defResponseHeaders, ""), "", "", "", []string{}, map[string]string{}}
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cfg := Configuration{
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AllowBackendServerHeader: false,
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@ -888,13 +888,14 @@ type ListenPorts struct {
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type GlobalExternalAuth struct {
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URL string `json:"url"`
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// Host contains the hostname defined in the URL
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Host string `json:"host"`
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SigninURL string `json:"signinUrl"`
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Method string `json:"method"`
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ResponseHeaders []string `json:"responseHeaders,omitempty"`
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RequestRedirect string `json:"requestRedirect"`
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AuthSnippet string `json:"authSnippet"`
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AuthCacheKey string `json:"authCacheKey"`
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AuthCacheDuration []string `json:"authCacheDuration"`
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ProxySetHeaders map[string]string `json:"proxySetHeaders,omitempty"`
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Host string `json:"host"`
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SigninURL string `json:"signinUrl"`
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SigninURLRedirectParam string `json:"signinUrlRedirectParam"`
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Method string `json:"method"`
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ResponseHeaders []string `json:"responseHeaders,omitempty"`
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RequestRedirect string `json:"requestRedirect"`
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AuthSnippet string `json:"authSnippet"`
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AuthCacheKey string `json:"authCacheKey"`
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AuthCacheDuration []string `json:"authCacheDuration"`
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ProxySetHeaders map[string]string `json:"proxySetHeaders,omitempty"`
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}
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@ -37,31 +37,32 @@ import (
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)
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const (
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customHTTPErrors = "custom-http-errors"
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skipAccessLogUrls = "skip-access-log-urls"
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whitelistSourceRange = "whitelist-source-range"
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proxyRealIPCIDR = "proxy-real-ip-cidr"
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bindAddress = "bind-address"
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httpRedirectCode = "http-redirect-code"
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blockCIDRs = "block-cidrs"
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blockUserAgents = "block-user-agents"
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blockReferers = "block-referers"
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proxyStreamResponses = "proxy-stream-responses"
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hideHeaders = "hide-headers"
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nginxStatusIpv4Whitelist = "nginx-status-ipv4-whitelist"
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nginxStatusIpv6Whitelist = "nginx-status-ipv6-whitelist"
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proxyHeaderTimeout = "proxy-protocol-header-timeout"
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workerProcesses = "worker-processes"
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globalAuthURL = "global-auth-url"
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globalAuthMethod = "global-auth-method"
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globalAuthSignin = "global-auth-signin"
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globalAuthResponseHeaders = "global-auth-response-headers"
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globalAuthRequestRedirect = "global-auth-request-redirect"
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globalAuthSnippet = "global-auth-snippet"
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globalAuthCacheKey = "global-auth-cache-key"
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globalAuthCacheDuration = "global-auth-cache-duration"
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luaSharedDictsKey = "lua-shared-dicts"
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plugins = "plugins"
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customHTTPErrors = "custom-http-errors"
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skipAccessLogUrls = "skip-access-log-urls"
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whitelistSourceRange = "whitelist-source-range"
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proxyRealIPCIDR = "proxy-real-ip-cidr"
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bindAddress = "bind-address"
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httpRedirectCode = "http-redirect-code"
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blockCIDRs = "block-cidrs"
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blockUserAgents = "block-user-agents"
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blockReferers = "block-referers"
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proxyStreamResponses = "proxy-stream-responses"
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hideHeaders = "hide-headers"
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nginxStatusIpv4Whitelist = "nginx-status-ipv4-whitelist"
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nginxStatusIpv6Whitelist = "nginx-status-ipv6-whitelist"
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proxyHeaderTimeout = "proxy-protocol-header-timeout"
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workerProcesses = "worker-processes"
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globalAuthURL = "global-auth-url"
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globalAuthMethod = "global-auth-method"
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globalAuthSignin = "global-auth-signin"
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globalAuthSigninRedirectParam = "global-auth-signin-redirect-param"
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globalAuthResponseHeaders = "global-auth-response-headers"
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globalAuthRequestRedirect = "global-auth-request-redirect"
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globalAuthSnippet = "global-auth-snippet"
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globalAuthCacheKey = "global-auth-cache-key"
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globalAuthCacheDuration = "global-auth-cache-duration"
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luaSharedDictsKey = "lua-shared-dicts"
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plugins = "plugins"
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)
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var (
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@ -75,6 +76,7 @@ var (
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"certificate_servers": 5,
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"ocsp_response_cache": 5, // keep this same as certificate_servers
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}
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defaultGlobalAuthRedirectParam = "rd"
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)
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const (
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@ -254,6 +256,19 @@ func ReadConfig(src map[string]string) config.Configuration {
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}
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}
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// Verify that the configured global external authorization error page redirection URL parameter is set and valid. if not, set the default value
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if val, ok := conf[globalAuthSigninRedirectParam]; ok {
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delete(conf, globalAuthSigninRedirectParam)
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redirectParam := strings.TrimSpace(val)
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dummySigninURL, _ := parser.StringToURL(fmt.Sprintf("%s?%s=dummy", to.GlobalExternalAuth.SigninURL, redirectParam))
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if dummySigninURL == nil {
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klog.Warningf("Global auth redirect parameter denied - %v.", "global-auth-signin-redirect-param setting is invalid and will not be set")
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} else {
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to.GlobalExternalAuth.SigninURLRedirectParam = redirectParam
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}
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}
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// Verify that the configured global external authorization response headers are valid. if not, set the default value
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if val, ok := conf[globalAuthResponseHeaders]; ok {
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delete(conf, globalAuthResponseHeaders)
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@ -229,6 +229,28 @@ func TestGlobalExternalAuthSigninParsing(t *testing.T) {
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}
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}
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func TestGlobalExternalAuthSigninRedirectParamParsing(t *testing.T) {
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testCases := map[string]struct {
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param string
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signin string
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expect string
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}{
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"no param": {"", "http://bar.foo.com/auth-error-page", ""},
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"valid param": {"orig", "http://bar.foo.com/auth-error-page", "orig"},
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"no signin url": {"orig", "", ""},
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}
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for n, tc := range testCases {
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cfg := ReadConfig(map[string]string{
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"global-auth-signin": tc.signin,
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"global-auth-signin-redirect-param": tc.param,
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})
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if cfg.GlobalExternalAuth.SigninURLRedirectParam != tc.expect {
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t.Errorf("Testing %v. Expected \"%v\" but \"%v\" was returned", n, tc.expect, cfg.GlobalExternalAuth.SigninURLRedirectParam)
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}
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}
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}
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func TestGlobalExternalAuthResponseHeadersParsing(t *testing.T) {
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testCases := map[string]struct {
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headers string
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@ -50,9 +50,10 @@ import (
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)
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const (
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slash = "/"
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nonIdempotent = "non_idempotent"
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defBufferSize = 65535
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slash = "/"
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nonIdempotent = "non_idempotent"
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defBufferSize = 65535
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defAuthSigninRedirectParam = "rd"
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)
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// TemplateWriter is the interface to render a template
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@ -903,18 +904,21 @@ func buildForwardedFor(input interface{}) string {
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return fmt.Sprintf("$http_%v", ffh)
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}
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func buildAuthSignURL(authSignURL string) string {
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func buildAuthSignURL(authSignURL, authRedirectParam string) string {
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u, _ := url.Parse(authSignURL)
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q := u.Query()
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if authRedirectParam == "" {
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authRedirectParam = defaultGlobalAuthRedirectParam
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}
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if len(q) == 0 {
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return fmt.Sprintf("%v?rd=$pass_access_scheme://$http_host$escaped_request_uri", authSignURL)
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return fmt.Sprintf("%v?%v=$pass_access_scheme://$http_host$escaped_request_uri", authSignURL, authRedirectParam)
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}
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if q.Get("rd") != "" {
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if q.Get(authRedirectParam) != "" {
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return authSignURL
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}
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return fmt.Sprintf("%v&rd=$pass_access_scheme://$http_host$escaped_request_uri", authSignURL)
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return fmt.Sprintf("%v&%v=$pass_access_scheme://$http_host$escaped_request_uri", authSignURL, authRedirectParam)
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}
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func buildAuthSignURLLocation(location, authSignURL string) string {
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@ -766,16 +766,19 @@ func TestFilterRateLimits(t *testing.T) {
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func TestBuildAuthSignURL(t *testing.T) {
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cases := map[string]struct {
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Input, Output string
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Input, RedirectParam, Output string
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}{
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"default url": {"http://google.com", "http://google.com?rd=$pass_access_scheme://$http_host$escaped_request_uri"},
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"with random field": {"http://google.com?cat=0", "http://google.com?cat=0&rd=$pass_access_scheme://$http_host$escaped_request_uri"},
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"with rd field": {"http://google.com?cat&rd=$request", "http://google.com?cat&rd=$request"},
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"default url and redirect": {"http://google.com", "rd", "http://google.com?rd=$pass_access_scheme://$http_host$escaped_request_uri"},
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"default url and custom redirect": {"http://google.com", "orig", "http://google.com?orig=$pass_access_scheme://$http_host$escaped_request_uri"},
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"with random field": {"http://google.com?cat=0", "rd", "http://google.com?cat=0&rd=$pass_access_scheme://$http_host$escaped_request_uri"},
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"with random field and custom redirect": {"http://google.com?cat=0", "orig", "http://google.com?cat=0&orig=$pass_access_scheme://$http_host$escaped_request_uri"},
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"with rd field": {"http://google.com?cat&rd=$request", "rd", "http://google.com?cat&rd=$request"},
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"with orig field": {"http://google.com?cat&orig=$request", "orig", "http://google.com?cat&orig=$request"},
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}
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for k, tc := range cases {
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res := buildAuthSignURL(tc.Input)
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res := buildAuthSignURL(tc.Input, tc.RedirectParam)
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if res != tc.Output {
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t.Errorf("%s: called buildAuthSignURL('%s'); expected '%v' but returned '%v'", k, tc.Input, tc.Output, res)
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t.Errorf("%s: called buildAuthSignURL('%s','%s'); expected '%v' but returned '%v'", k, tc.Input, tc.RedirectParam, tc.Output, res)
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}
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}
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}
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