vendorify
diff --git a/go/vendor/github.com/PuerkitoBio/urlesc/.travis.yml b/go/vendor/github.com/PuerkitoBio/urlesc/.travis.yml
new file mode 100644
index 0000000..ba6b225
--- /dev/null
+++ b/go/vendor/github.com/PuerkitoBio/urlesc/.travis.yml
@@ -0,0 +1,15 @@
+language: go
+
+go:
+ - 1.4.x
+ - 1.5.x
+ - 1.6.x
+ - 1.7.x
+ - 1.8.x
+ - tip
+
+install:
+ - go build .
+
+script:
+ - go test -v
diff --git a/go/vendor/github.com/PuerkitoBio/urlesc/LICENSE b/go/vendor/github.com/PuerkitoBio/urlesc/LICENSE
new file mode 100644
index 0000000..7448756
--- /dev/null
+++ b/go/vendor/github.com/PuerkitoBio/urlesc/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2012 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+ * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/go/vendor/github.com/PuerkitoBio/urlesc/README.md b/go/vendor/github.com/PuerkitoBio/urlesc/README.md
new file mode 100644
index 0000000..57aff0a
--- /dev/null
+++ b/go/vendor/github.com/PuerkitoBio/urlesc/README.md
@@ -0,0 +1,16 @@
+urlesc [](https://travis-ci.org/PuerkitoBio/urlesc) [](http://godoc.org/github.com/PuerkitoBio/urlesc)
+======
+
+Package urlesc implements query escaping as per RFC 3986.
+
+It contains some parts of the net/url package, modified so as to allow
+some reserved characters incorrectly escaped by net/url (see [issue 5684](https://github.com/golang/go/issues/5684)).
+
+## Install
+
+ go get github.com/PuerkitoBio/urlesc
+
+## License
+
+Go license (BSD-3-Clause)
+
diff --git a/go/vendor/github.com/PuerkitoBio/urlesc/urlesc.go b/go/vendor/github.com/PuerkitoBio/urlesc/urlesc.go
new file mode 100644
index 0000000..1b84624
--- /dev/null
+++ b/go/vendor/github.com/PuerkitoBio/urlesc/urlesc.go
@@ -0,0 +1,180 @@
+// Copyright 2009 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 urlesc implements query escaping as per RFC 3986.
+// It contains some parts of the net/url package, modified so as to allow
+// some reserved characters incorrectly escaped by net/url.
+// See https://github.com/golang/go/issues/5684
+package urlesc
+
+import (
+ "bytes"
+ "net/url"
+ "strings"
+)
+
+type encoding int
+
+const (
+ encodePath encoding = 1 + iota
+ encodeUserPassword
+ encodeQueryComponent
+ encodeFragment
+)
+
+// Return true if the specified character should be escaped when
+// appearing in a URL string, according to RFC 3986.
+func shouldEscape(c byte, mode encoding) bool {
+ // §2.3 Unreserved characters (alphanum)
+ if 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' {
+ return false
+ }
+
+ switch c {
+ case '-', '.', '_', '~': // §2.3 Unreserved characters (mark)
+ return false
+
+ // §2.2 Reserved characters (reserved)
+ case ':', '/', '?', '#', '[', ']', '@', // gen-delims
+ '!', '$', '&', '\'', '(', ')', '*', '+', ',', ';', '=': // sub-delims
+ // Different sections of the URL allow a few of
+ // the reserved characters to appear unescaped.
+ switch mode {
+ case encodePath: // §3.3
+ // The RFC allows sub-delims and : @.
+ // '/', '[' and ']' can be used to assign meaning to individual path
+ // segments. This package only manipulates the path as a whole,
+ // so we allow those as well. That leaves only ? and # to escape.
+ return c == '?' || c == '#'
+
+ case encodeUserPassword: // §3.2.1
+ // The RFC allows : and sub-delims in
+ // userinfo. The parsing of userinfo treats ':' as special so we must escape
+ // all the gen-delims.
+ return c == ':' || c == '/' || c == '?' || c == '#' || c == '[' || c == ']' || c == '@'
+
+ case encodeQueryComponent: // §3.4
+ // The RFC allows / and ?.
+ return c != '/' && c != '?'
+
+ case encodeFragment: // §4.1
+ // The RFC text is silent but the grammar allows
+ // everything, so escape nothing but #
+ return c == '#'
+ }
+ }
+
+ // Everything else must be escaped.
+ return true
+}
+
+// QueryEscape escapes the string so it can be safely placed
+// inside a URL query.
+func QueryEscape(s string) string {
+ return escape(s, encodeQueryComponent)
+}
+
+func escape(s string, mode encoding) string {
+ spaceCount, hexCount := 0, 0
+ for i := 0; i < len(s); i++ {
+ c := s[i]
+ if shouldEscape(c, mode) {
+ if c == ' ' && mode == encodeQueryComponent {
+ spaceCount++
+ } else {
+ hexCount++
+ }
+ }
+ }
+
+ if spaceCount == 0 && hexCount == 0 {
+ return s
+ }
+
+ t := make([]byte, len(s)+2*hexCount)
+ j := 0
+ for i := 0; i < len(s); i++ {
+ switch c := s[i]; {
+ case c == ' ' && mode == encodeQueryComponent:
+ t[j] = '+'
+ j++
+ case shouldEscape(c, mode):
+ t[j] = '%'
+ t[j+1] = "0123456789ABCDEF"[c>>4]
+ t[j+2] = "0123456789ABCDEF"[c&15]
+ j += 3
+ default:
+ t[j] = s[i]
+ j++
+ }
+ }
+ return string(t)
+}
+
+var uiReplacer = strings.NewReplacer(
+ "%21", "!",
+ "%27", "'",
+ "%28", "(",
+ "%29", ")",
+ "%2A", "*",
+)
+
+// unescapeUserinfo unescapes some characters that need not to be escaped as per RFC3986.
+func unescapeUserinfo(s string) string {
+ return uiReplacer.Replace(s)
+}
+
+// Escape reassembles the URL into a valid URL string.
+// The general form of the result is one of:
+//
+// scheme:opaque
+// scheme://userinfo@host/path?query#fragment
+//
+// If u.Opaque is non-empty, String uses the first form;
+// otherwise it uses the second form.
+//
+// In the second form, the following rules apply:
+// - if u.Scheme is empty, scheme: is omitted.
+// - if u.User is nil, userinfo@ is omitted.
+// - if u.Host is empty, host/ is omitted.
+// - if u.Scheme and u.Host are empty and u.User is nil,
+// the entire scheme://userinfo@host/ is omitted.
+// - if u.Host is non-empty and u.Path begins with a /,
+// the form host/path does not add its own /.
+// - if u.RawQuery is empty, ?query is omitted.
+// - if u.Fragment is empty, #fragment is omitted.
+func Escape(u *url.URL) string {
+ var buf bytes.Buffer
+ if u.Scheme != "" {
+ buf.WriteString(u.Scheme)
+ buf.WriteByte(':')
+ }
+ if u.Opaque != "" {
+ buf.WriteString(u.Opaque)
+ } else {
+ if u.Scheme != "" || u.Host != "" || u.User != nil {
+ buf.WriteString("//")
+ if ui := u.User; ui != nil {
+ buf.WriteString(unescapeUserinfo(ui.String()))
+ buf.WriteByte('@')
+ }
+ if h := u.Host; h != "" {
+ buf.WriteString(h)
+ }
+ }
+ if u.Path != "" && u.Path[0] != '/' && u.Host != "" {
+ buf.WriteByte('/')
+ }
+ buf.WriteString(escape(u.Path, encodePath))
+ }
+ if u.RawQuery != "" {
+ buf.WriteByte('?')
+ buf.WriteString(u.RawQuery)
+ }
+ if u.Fragment != "" {
+ buf.WriteByte('#')
+ buf.WriteString(escape(u.Fragment, encodeFragment))
+ }
+ return buf.String()
+}