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author | Christopher Speller <crspeller@gmail.com> | 2018-04-16 05:37:14 -0700 |
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committer | Joram Wilander <jwawilander@gmail.com> | 2018-04-16 08:37:14 -0400 |
commit | 6e2cb00008cbf09e556b00f87603797fcaa47e09 (patch) | |
tree | 3c0eb55ff4226a3f024aad373140d1fb860a6404 /vendor/github.com/olivere/elastic/uritemplates/uritemplates.go | |
parent | bf24f51c4e1cc6286885460672f7f449e8c6f5ef (diff) | |
download | chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.tar.gz chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.tar.bz2 chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.zip |
Depenancy upgrades and movign to dep. (#8630)
Diffstat (limited to 'vendor/github.com/olivere/elastic/uritemplates/uritemplates.go')
-rw-r--r-- | vendor/github.com/olivere/elastic/uritemplates/uritemplates.go | 359 |
1 files changed, 0 insertions, 359 deletions
diff --git a/vendor/github.com/olivere/elastic/uritemplates/uritemplates.go b/vendor/github.com/olivere/elastic/uritemplates/uritemplates.go deleted file mode 100644 index 8a84813fe..000000000 --- a/vendor/github.com/olivere/elastic/uritemplates/uritemplates.go +++ /dev/null @@ -1,359 +0,0 @@ -// Copyright 2013 Joshua Tacoma. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package uritemplates is a level 4 implementation of RFC 6570 (URI -// Template, http://tools.ietf.org/html/rfc6570). -// -// To use uritemplates, parse a template string and expand it with a value -// map: -// -// template, _ := uritemplates.Parse("https://api.github.com/repos{/user,repo}") -// values := make(map[string]interface{}) -// values["user"] = "jtacoma" -// values["repo"] = "uritemplates" -// expanded, _ := template.ExpandString(values) -// fmt.Printf(expanded) -// -package uritemplates - -import ( - "bytes" - "errors" - "fmt" - "reflect" - "regexp" - "strconv" - "strings" -) - -var ( - unreserved = regexp.MustCompile("[^A-Za-z0-9\\-._~]") - reserved = regexp.MustCompile("[^A-Za-z0-9\\-._~:/?#[\\]@!$&'()*+,;=]") - validname = regexp.MustCompile("^([A-Za-z0-9_\\.]|%[0-9A-Fa-f][0-9A-Fa-f])+$") - hex = []byte("0123456789ABCDEF") -) - -func pctEncode(src []byte) []byte { - dst := make([]byte, len(src)*3) - for i, b := range src { - buf := dst[i*3 : i*3+3] - buf[0] = 0x25 - buf[1] = hex[b/16] - buf[2] = hex[b%16] - } - return dst -} - -func escape(s string, allowReserved bool) (escaped string) { - if allowReserved { - escaped = string(reserved.ReplaceAllFunc([]byte(s), pctEncode)) - } else { - escaped = string(unreserved.ReplaceAllFunc([]byte(s), pctEncode)) - } - return escaped -} - -// A UriTemplate is a parsed representation of a URI template. -type UriTemplate struct { - raw string - parts []templatePart -} - -// Parse parses a URI template string into a UriTemplate object. -func Parse(rawtemplate string) (template *UriTemplate, err error) { - template = new(UriTemplate) - template.raw = rawtemplate - split := strings.Split(rawtemplate, "{") - template.parts = make([]templatePart, len(split)*2-1) - for i, s := range split { - if i == 0 { - if strings.Contains(s, "}") { - err = errors.New("unexpected }") - break - } - template.parts[i].raw = s - } else { - subsplit := strings.Split(s, "}") - if len(subsplit) != 2 { - err = errors.New("malformed template") - break - } - expression := subsplit[0] - template.parts[i*2-1], err = parseExpression(expression) - if err != nil { - break - } - template.parts[i*2].raw = subsplit[1] - } - } - if err != nil { - template = nil - } - return template, err -} - -type templatePart struct { - raw string - terms []templateTerm - first string - sep string - named bool - ifemp string - allowReserved bool -} - -type templateTerm struct { - name string - explode bool - truncate int -} - -func parseExpression(expression string) (result templatePart, err error) { - switch expression[0] { - case '+': - result.sep = "," - result.allowReserved = true - expression = expression[1:] - case '.': - result.first = "." - result.sep = "." - expression = expression[1:] - case '/': - result.first = "/" - result.sep = "/" - expression = expression[1:] - case ';': - result.first = ";" - result.sep = ";" - result.named = true - expression = expression[1:] - case '?': - result.first = "?" - result.sep = "&" - result.named = true - result.ifemp = "=" - expression = expression[1:] - case '&': - result.first = "&" - result.sep = "&" - result.named = true - result.ifemp = "=" - expression = expression[1:] - case '#': - result.first = "#" - result.sep = "," - result.allowReserved = true - expression = expression[1:] - default: - result.sep = "," - } - rawterms := strings.Split(expression, ",") - result.terms = make([]templateTerm, len(rawterms)) - for i, raw := range rawterms { - result.terms[i], err = parseTerm(raw) - if err != nil { - break - } - } - return result, err -} - -func parseTerm(term string) (result templateTerm, err error) { - if strings.HasSuffix(term, "*") { - result.explode = true - term = term[:len(term)-1] - } - split := strings.Split(term, ":") - if len(split) == 1 { - result.name = term - } else if len(split) == 2 { - result.name = split[0] - var parsed int64 - parsed, err = strconv.ParseInt(split[1], 10, 0) - result.truncate = int(parsed) - } else { - err = errors.New("multiple colons in same term") - } - if !validname.MatchString(result.name) { - err = errors.New("not a valid name: " + result.name) - } - if result.explode && result.truncate > 0 { - err = errors.New("both explode and prefix modifers on same term") - } - return result, err -} - -// Expand expands a URI template with a set of values to produce a string. -func (self *UriTemplate) Expand(value interface{}) (string, error) { - values, ismap := value.(map[string]interface{}) - if !ismap { - if m, ismap := struct2map(value); !ismap { - return "", errors.New("expected map[string]interface{}, struct, or pointer to struct.") - } else { - return self.Expand(m) - } - } - var buf bytes.Buffer - for _, p := range self.parts { - err := p.expand(&buf, values) - if err != nil { - return "", err - } - } - return buf.String(), nil -} - -func (self *templatePart) expand(buf *bytes.Buffer, values map[string]interface{}) error { - if len(self.raw) > 0 { - buf.WriteString(self.raw) - return nil - } - var zeroLen = buf.Len() - buf.WriteString(self.first) - var firstLen = buf.Len() - for _, term := range self.terms { - value, exists := values[term.name] - if !exists { - continue - } - if buf.Len() != firstLen { - buf.WriteString(self.sep) - } - switch v := value.(type) { - case string: - self.expandString(buf, term, v) - case []interface{}: - self.expandArray(buf, term, v) - case map[string]interface{}: - if term.truncate > 0 { - return errors.New("cannot truncate a map expansion") - } - self.expandMap(buf, term, v) - default: - if m, ismap := struct2map(value); ismap { - if term.truncate > 0 { - return errors.New("cannot truncate a map expansion") - } - self.expandMap(buf, term, m) - } else { - str := fmt.Sprintf("%v", value) - self.expandString(buf, term, str) - } - } - } - if buf.Len() == firstLen { - original := buf.Bytes()[:zeroLen] - buf.Reset() - buf.Write(original) - } - return nil -} - -func (self *templatePart) expandName(buf *bytes.Buffer, name string, empty bool) { - if self.named { - buf.WriteString(name) - if empty { - buf.WriteString(self.ifemp) - } else { - buf.WriteString("=") - } - } -} - -func (self *templatePart) expandString(buf *bytes.Buffer, t templateTerm, s string) { - if len(s) > t.truncate && t.truncate > 0 { - s = s[:t.truncate] - } - self.expandName(buf, t.name, len(s) == 0) - buf.WriteString(escape(s, self.allowReserved)) -} - -func (self *templatePart) expandArray(buf *bytes.Buffer, t templateTerm, a []interface{}) { - if len(a) == 0 { - return - } else if !t.explode { - self.expandName(buf, t.name, false) - } - for i, value := range a { - if t.explode && i > 0 { - buf.WriteString(self.sep) - } else if i > 0 { - buf.WriteString(",") - } - var s string - switch v := value.(type) { - case string: - s = v - default: - s = fmt.Sprintf("%v", v) - } - if len(s) > t.truncate && t.truncate > 0 { - s = s[:t.truncate] - } - if self.named && t.explode { - self.expandName(buf, t.name, len(s) == 0) - } - buf.WriteString(escape(s, self.allowReserved)) - } -} - -func (self *templatePart) expandMap(buf *bytes.Buffer, t templateTerm, m map[string]interface{}) { - if len(m) == 0 { - return - } - if !t.explode { - self.expandName(buf, t.name, len(m) == 0) - } - var firstLen = buf.Len() - for k, value := range m { - if firstLen != buf.Len() { - if t.explode { - buf.WriteString(self.sep) - } else { - buf.WriteString(",") - } - } - var s string - switch v := value.(type) { - case string: - s = v - default: - s = fmt.Sprintf("%v", v) - } - if t.explode { - buf.WriteString(escape(k, self.allowReserved)) - buf.WriteRune('=') - buf.WriteString(escape(s, self.allowReserved)) - } else { - buf.WriteString(escape(k, self.allowReserved)) - buf.WriteRune(',') - buf.WriteString(escape(s, self.allowReserved)) - } - } -} - -func struct2map(v interface{}) (map[string]interface{}, bool) { - value := reflect.ValueOf(v) - switch value.Type().Kind() { - case reflect.Ptr: - return struct2map(value.Elem().Interface()) - case reflect.Struct: - m := make(map[string]interface{}) - for i := 0; i < value.NumField(); i++ { - tag := value.Type().Field(i).Tag - var name string - if strings.Contains(string(tag), ":") { - name = tag.Get("uri") - } else { - name = strings.TrimSpace(string(tag)) - } - if len(name) == 0 { - name = value.Type().Field(i).Name - } - m[name] = value.Field(i).Interface() - } - return m, true - } - return nil, false -} |