From 14bb08c1df8db9ec6c8a05520d4eee67971235d9 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Thu, 27 Sep 2018 20:03:23 +0200 Subject: mod tidy --- vendor/golang.org/x/net/http/httpguts/guts.go | 50 ---- vendor/golang.org/x/net/http/httpguts/httplex.go | 346 ----------------------- vendor/golang.org/x/net/http/httpproxy/proxy.go | 239 ---------------- 3 files changed, 635 deletions(-) delete mode 100644 vendor/golang.org/x/net/http/httpguts/guts.go delete mode 100644 vendor/golang.org/x/net/http/httpguts/httplex.go delete mode 100644 vendor/golang.org/x/net/http/httpproxy/proxy.go (limited to 'vendor/golang.org/x/net/http') diff --git a/vendor/golang.org/x/net/http/httpguts/guts.go b/vendor/golang.org/x/net/http/httpguts/guts.go deleted file mode 100644 index e6cd0ce..0000000 --- a/vendor/golang.org/x/net/http/httpguts/guts.go +++ /dev/null @@ -1,50 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package httpguts provides functions implementing various details -// of the HTTP specification. -// -// This package is shared by the standard library (which vendors it) -// and x/net/http2. It comes with no API stability promise. -package httpguts - -import ( - "net/textproto" - "strings" -) - -// ValidTrailerHeader reports whether name is a valid header field name to appear -// in trailers. -// See RFC 7230, Section 4.1.2 -func ValidTrailerHeader(name string) bool { - name = textproto.CanonicalMIMEHeaderKey(name) - if strings.HasPrefix(name, "If-") || badTrailer[name] { - return false - } - return true -} - -var badTrailer = map[string]bool{ - "Authorization": true, - "Cache-Control": true, - "Connection": true, - "Content-Encoding": true, - "Content-Length": true, - "Content-Range": true, - "Content-Type": true, - "Expect": true, - "Host": true, - "Keep-Alive": true, - "Max-Forwards": true, - "Pragma": true, - "Proxy-Authenticate": true, - "Proxy-Authorization": true, - "Proxy-Connection": true, - "Range": true, - "Realm": true, - "Te": true, - "Trailer": true, - "Transfer-Encoding": true, - "Www-Authenticate": true, -} diff --git a/vendor/golang.org/x/net/http/httpguts/httplex.go b/vendor/golang.org/x/net/http/httpguts/httplex.go deleted file mode 100644 index e7de24e..0000000 --- a/vendor/golang.org/x/net/http/httpguts/httplex.go +++ /dev/null @@ -1,346 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package httpguts - -import ( - "net" - "strings" - "unicode/utf8" - - "golang.org/x/net/idna" -) - -var isTokenTable = [127]bool{ - '!': true, - '#': true, - '$': true, - '%': true, - '&': true, - '\'': true, - '*': true, - '+': true, - '-': true, - '.': true, - '0': true, - '1': true, - '2': true, - '3': true, - '4': true, - '5': true, - '6': true, - '7': true, - '8': true, - '9': true, - 'A': true, - 'B': true, - 'C': true, - 'D': true, - 'E': true, - 'F': true, - 'G': true, - 'H': true, - 'I': true, - 'J': true, - 'K': true, - 'L': true, - 'M': true, - 'N': true, - 'O': true, - 'P': true, - 'Q': true, - 'R': true, - 'S': true, - 'T': true, - 'U': true, - 'W': true, - 'V': true, - 'X': true, - 'Y': true, - 'Z': true, - '^': true, - '_': true, - '`': true, - 'a': true, - 'b': true, - 'c': true, - 'd': true, - 'e': true, - 'f': true, - 'g': true, - 'h': true, - 'i': true, - 'j': true, - 'k': true, - 'l': true, - 'm': true, - 'n': true, - 'o': true, - 'p': true, - 'q': true, - 'r': true, - 's': true, - 't': true, - 'u': true, - 'v': true, - 'w': true, - 'x': true, - 'y': true, - 'z': true, - '|': true, - '~': true, -} - -func IsTokenRune(r rune) bool { - i := int(r) - return i < len(isTokenTable) && isTokenTable[i] -} - -func isNotToken(r rune) bool { - return !IsTokenRune(r) -} - -// HeaderValuesContainsToken reports whether any string in values -// contains the provided token, ASCII case-insensitively. -func HeaderValuesContainsToken(values []string, token string) bool { - for _, v := range values { - if headerValueContainsToken(v, token) { - return true - } - } - return false -} - -// isOWS reports whether b is an optional whitespace byte, as defined -// by RFC 7230 section 3.2.3. -func isOWS(b byte) bool { return b == ' ' || b == '\t' } - -// trimOWS returns x with all optional whitespace removes from the -// beginning and end. -func trimOWS(x string) string { - // TODO: consider using strings.Trim(x, " \t") instead, - // if and when it's fast enough. See issue 10292. - // But this ASCII-only code will probably always beat UTF-8 - // aware code. - for len(x) > 0 && isOWS(x[0]) { - x = x[1:] - } - for len(x) > 0 && isOWS(x[len(x)-1]) { - x = x[:len(x)-1] - } - return x -} - -// headerValueContainsToken reports whether v (assumed to be a -// 0#element, in the ABNF extension described in RFC 7230 section 7) -// contains token amongst its comma-separated tokens, ASCII -// case-insensitively. -func headerValueContainsToken(v string, token string) bool { - v = trimOWS(v) - if comma := strings.IndexByte(v, ','); comma != -1 { - return tokenEqual(trimOWS(v[:comma]), token) || headerValueContainsToken(v[comma+1:], token) - } - return tokenEqual(v, token) -} - -// lowerASCII returns the ASCII lowercase version of b. -func lowerASCII(b byte) byte { - if 'A' <= b && b <= 'Z' { - return b + ('a' - 'A') - } - return b -} - -// tokenEqual reports whether t1 and t2 are equal, ASCII case-insensitively. -func tokenEqual(t1, t2 string) bool { - if len(t1) != len(t2) { - return false - } - for i, b := range t1 { - if b >= utf8.RuneSelf { - // No UTF-8 or non-ASCII allowed in tokens. - return false - } - if lowerASCII(byte(b)) != lowerASCII(t2[i]) { - return false - } - } - return true -} - -// isLWS reports whether b is linear white space, according -// to http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2 -// LWS = [CRLF] 1*( SP | HT ) -func isLWS(b byte) bool { return b == ' ' || b == '\t' } - -// isCTL reports whether b is a control byte, according -// to http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2 -// CTL = -func isCTL(b byte) bool { - const del = 0x7f // a CTL - return b < ' ' || b == del -} - -// ValidHeaderFieldName reports whether v is a valid HTTP/1.x header name. -// HTTP/2 imposes the additional restriction that uppercase ASCII -// letters are not allowed. -// -// RFC 7230 says: -// header-field = field-name ":" OWS field-value OWS -// field-name = token -// token = 1*tchar -// tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "." / -// "^" / "_" / "`" / "|" / "~" / DIGIT / ALPHA -func ValidHeaderFieldName(v string) bool { - if len(v) == 0 { - return false - } - for _, r := range v { - if !IsTokenRune(r) { - return false - } - } - return true -} - -// ValidHostHeader reports whether h is a valid host header. -func ValidHostHeader(h string) bool { - // The latest spec is actually this: - // - // http://tools.ietf.org/html/rfc7230#section-5.4 - // Host = uri-host [ ":" port ] - // - // Where uri-host is: - // http://tools.ietf.org/html/rfc3986#section-3.2.2 - // - // But we're going to be much more lenient for now and just - // search for any byte that's not a valid byte in any of those - // expressions. - for i := 0; i < len(h); i++ { - if !validHostByte[h[i]] { - return false - } - } - return true -} - -// See the validHostHeader comment. -var validHostByte = [256]bool{ - '0': true, '1': true, '2': true, '3': true, '4': true, '5': true, '6': true, '7': true, - '8': true, '9': true, - - 'a': true, 'b': true, 'c': true, 'd': true, 'e': true, 'f': true, 'g': true, 'h': true, - 'i': true, 'j': true, 'k': true, 'l': true, 'm': true, 'n': true, 'o': true, 'p': true, - 'q': true, 'r': true, 's': true, 't': true, 'u': true, 'v': true, 'w': true, 'x': true, - 'y': true, 'z': true, - - 'A': true, 'B': true, 'C': true, 'D': true, 'E': true, 'F': true, 'G': true, 'H': true, - 'I': true, 'J': true, 'K': true, 'L': true, 'M': true, 'N': true, 'O': true, 'P': true, - 'Q': true, 'R': true, 'S': true, 'T': true, 'U': true, 'V': true, 'W': true, 'X': true, - 'Y': true, 'Z': true, - - '!': true, // sub-delims - '$': true, // sub-delims - '%': true, // pct-encoded (and used in IPv6 zones) - '&': true, // sub-delims - '(': true, // sub-delims - ')': true, // sub-delims - '*': true, // sub-delims - '+': true, // sub-delims - ',': true, // sub-delims - '-': true, // unreserved - '.': true, // unreserved - ':': true, // IPv6address + Host expression's optional port - ';': true, // sub-delims - '=': true, // sub-delims - '[': true, - '\'': true, // sub-delims - ']': true, - '_': true, // unreserved - '~': true, // unreserved -} - -// ValidHeaderFieldValue reports whether v is a valid "field-value" according to -// http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2 : -// -// message-header = field-name ":" [ field-value ] -// field-value = *( field-content | LWS ) -// field-content = -// -// http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2 : -// -// TEXT = -// LWS = [CRLF] 1*( SP | HT ) -// CTL = -// -// RFC 7230 says: -// field-value = *( field-content / obs-fold ) -// obj-fold = N/A to http2, and deprecated -// field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ] -// field-vchar = VCHAR / obs-text -// obs-text = %x80-FF -// VCHAR = "any visible [USASCII] character" -// -// http2 further says: "Similarly, HTTP/2 allows header field values -// that are not valid. While most of the values that can be encoded -// will not alter header field parsing, carriage return (CR, ASCII -// 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII -// 0x0) might be exploited by an attacker if they are translated -// verbatim. Any request or response that contains a character not -// permitted in a header field value MUST be treated as malformed -// (Section 8.1.2.6). Valid characters are defined by the -// field-content ABNF rule in Section 3.2 of [RFC7230]." -// -// This function does not (yet?) properly handle the rejection of -// strings that begin or end with SP or HTAB. -func ValidHeaderFieldValue(v string) bool { - for i := 0; i < len(v); i++ { - b := v[i] - if isCTL(b) && !isLWS(b) { - return false - } - } - return true -} - -func isASCII(s string) bool { - for i := 0; i < len(s); i++ { - if s[i] >= utf8.RuneSelf { - return false - } - } - return true -} - -// PunycodeHostPort returns the IDNA Punycode version -// of the provided "host" or "host:port" string. -func PunycodeHostPort(v string) (string, error) { - if isASCII(v) { - return v, nil - } - - host, port, err := net.SplitHostPort(v) - if err != nil { - // The input 'v' argument was just a "host" argument, - // without a port. This error should not be returned - // to the caller. - host = v - port = "" - } - host, err = idna.ToASCII(host) - if err != nil { - // Non-UTF-8? Not representable in Punycode, in any - // case. - return "", err - } - if port == "" { - return host, nil - } - return net.JoinHostPort(host, port), nil -} diff --git a/vendor/golang.org/x/net/http/httpproxy/proxy.go b/vendor/golang.org/x/net/http/httpproxy/proxy.go deleted file mode 100644 index cbe1d2a..0000000 --- a/vendor/golang.org/x/net/http/httpproxy/proxy.go +++ /dev/null @@ -1,239 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package httpproxy provides support for HTTP proxy determination -// based on environment variables, as provided by net/http's -// ProxyFromEnvironment function. -// -// The API is not subject to the Go 1 compatibility promise and may change at -// any time. -package httpproxy - -import ( - "errors" - "fmt" - "net" - "net/url" - "os" - "strings" - "unicode/utf8" - - "golang.org/x/net/idna" -) - -// Config holds configuration for HTTP proxy settings. See -// FromEnvironment for details. -type Config struct { - // HTTPProxy represents the value of the HTTP_PROXY or - // http_proxy environment variable. It will be used as the proxy - // URL for HTTP requests and HTTPS requests unless overridden by - // HTTPSProxy or NoProxy. - HTTPProxy string - - // HTTPSProxy represents the HTTPS_PROXY or https_proxy - // environment variable. It will be used as the proxy URL for - // HTTPS requests unless overridden by NoProxy. - HTTPSProxy string - - // NoProxy represents the NO_PROXY or no_proxy environment - // variable. It specifies URLs that should be excluded from - // proxying as a comma-separated list of domain names or a - // single asterisk (*) to indicate that no proxying should be - // done. A domain name matches that name and all subdomains. A - // domain name with a leading "." matches subdomains only. For - // example "foo.com" matches "foo.com" and "bar.foo.com"; - // ".y.com" matches "x.y.com" but not "y.com". - NoProxy string - - // CGI holds whether the current process is running - // as a CGI handler (FromEnvironment infers this from the - // presence of a REQUEST_METHOD environment variable). - // When this is set, ProxyForURL will return an error - // when HTTPProxy applies, because a client could be - // setting HTTP_PROXY maliciously. See https://golang.org/s/cgihttpproxy. - CGI bool -} - -// FromEnvironment returns a Config instance populated from the -// environment variables HTTP_PROXY, HTTPS_PROXY and NO_PROXY (or the -// lowercase versions thereof). HTTPS_PROXY takes precedence over -// HTTP_PROXY for https requests. -// -// The environment values may be either a complete URL or a -// "host[:port]", in which case the "http" scheme is assumed. An error -// is returned if the value is a different form. -func FromEnvironment() *Config { - return &Config{ - HTTPProxy: getEnvAny("HTTP_PROXY", "http_proxy"), - HTTPSProxy: getEnvAny("HTTPS_PROXY", "https_proxy"), - NoProxy: getEnvAny("NO_PROXY", "no_proxy"), - CGI: os.Getenv("REQUEST_METHOD") != "", - } -} - -func getEnvAny(names ...string) string { - for _, n := range names { - if val := os.Getenv(n); val != "" { - return val - } - } - return "" -} - -// ProxyFunc returns a function that determines the proxy URL to use for -// a given request URL. Changing the contents of cfg will not affect -// proxy functions created earlier. -// -// A nil URL and nil error are returned if no proxy is defined in the -// environment, or a proxy should not be used for the given request, as -// defined by NO_PROXY. -// -// As a special case, if req.URL.Host is "localhost" (with or without a -// port number), then a nil URL and nil error will be returned. -func (cfg *Config) ProxyFunc() func(reqURL *url.URL) (*url.URL, error) { - // Prevent Config changes from affecting the function calculation. - // TODO Preprocess proxy settings for more efficient evaluation. - cfg1 := *cfg - return cfg1.proxyForURL -} - -func (cfg *Config) proxyForURL(reqURL *url.URL) (*url.URL, error) { - var proxy string - if reqURL.Scheme == "https" { - proxy = cfg.HTTPSProxy - } - if proxy == "" { - proxy = cfg.HTTPProxy - if proxy != "" && cfg.CGI { - return nil, errors.New("refusing to use HTTP_PROXY value in CGI environment; see golang.org/s/cgihttpproxy") - } - } - if proxy == "" { - return nil, nil - } - if !cfg.useProxy(canonicalAddr(reqURL)) { - return nil, nil - } - proxyURL, err := url.Parse(proxy) - if err != nil || - (proxyURL.Scheme != "http" && - proxyURL.Scheme != "https" && - proxyURL.Scheme != "socks5") { - // proxy was bogus. Try prepending "http://" to it and - // see if that parses correctly. If not, we fall - // through and complain about the original one. - if proxyURL, err := url.Parse("http://" + proxy); err == nil { - return proxyURL, nil - } - } - if err != nil { - return nil, fmt.Errorf("invalid proxy address %q: %v", proxy, err) - } - return proxyURL, nil -} - -// useProxy reports whether requests to addr should use a proxy, -// according to the NO_PROXY or no_proxy environment variable. -// addr is always a canonicalAddr with a host and port. -func (cfg *Config) useProxy(addr string) bool { - if len(addr) == 0 { - return true - } - host, _, err := net.SplitHostPort(addr) - if err != nil { - return false - } - if host == "localhost" { - return false - } - if ip := net.ParseIP(host); ip != nil { - if ip.IsLoopback() { - return false - } - } - - noProxy := cfg.NoProxy - if noProxy == "*" { - return false - } - - addr = strings.ToLower(strings.TrimSpace(addr)) - if hasPort(addr) { - addr = addr[:strings.LastIndex(addr, ":")] - } - - for _, p := range strings.Split(noProxy, ",") { - p = strings.ToLower(strings.TrimSpace(p)) - if len(p) == 0 { - continue - } - if hasPort(p) { - p = p[:strings.LastIndex(p, ":")] - } - if addr == p { - return false - } - if len(p) == 0 { - // There is no host part, likely the entry is malformed; ignore. - continue - } - if p[0] == '.' && (strings.HasSuffix(addr, p) || addr == p[1:]) { - // no_proxy ".foo.com" matches "bar.foo.com" or "foo.com" - return false - } - if p[0] != '.' && strings.HasSuffix(addr, p) && addr[len(addr)-len(p)-1] == '.' { - // no_proxy "foo.com" matches "bar.foo.com" - return false - } - } - return true -} - -var portMap = map[string]string{ - "http": "80", - "https": "443", - "socks5": "1080", -} - -// canonicalAddr returns url.Host but always with a ":port" suffix -func canonicalAddr(url *url.URL) string { - addr := url.Hostname() - if v, err := idnaASCII(addr); err == nil { - addr = v - } - port := url.Port() - if port == "" { - port = portMap[url.Scheme] - } - return net.JoinHostPort(addr, port) -} - -// Given a string of the form "host", "host:port", or "[ipv6::address]:port", -// return true if the string includes a port. -func hasPort(s string) bool { return strings.LastIndex(s, ":") > strings.LastIndex(s, "]") } - -func idnaASCII(v string) (string, error) { - // TODO: Consider removing this check after verifying performance is okay. - // Right now punycode verification, length checks, context checks, and the - // permissible character tests are all omitted. It also prevents the ToASCII - // call from salvaging an invalid IDN, when possible. As a result it may be - // possible to have two IDNs that appear identical to the user where the - // ASCII-only version causes an error downstream whereas the non-ASCII - // version does not. - // Note that for correct ASCII IDNs ToASCII will only do considerably more - // work, but it will not cause an allocation. - if isASCII(v) { - return v, nil - } - return idna.Lookup.ToASCII(v) -} - -func isASCII(s string) bool { - for i := 0; i < len(s); i++ { - if s[i] >= utf8.RuneSelf { - return false - } - } - return true -} -- cgit v1.2.3