diff options
Diffstat (limited to 'vendor/github.com/mssola/user_agent/user_agent.go')
| -rw-r--r-- | vendor/github.com/mssola/user_agent/user_agent.go | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/vendor/github.com/mssola/user_agent/user_agent.go b/vendor/github.com/mssola/user_agent/user_agent.go deleted file mode 100644 index 436e94980..000000000 --- a/vendor/github.com/mssola/user_agent/user_agent.go +++ /dev/null @@ -1,174 +0,0 @@ -// Copyright (C) 2012-2018 Miquel Sabaté Solà <mikisabate@gmail.com> -// This file is licensed under the MIT license. -// See the LICENSE file. - -// Package user_agent implements an HTTP User Agent string parser. It defines -// the type UserAgent that contains all the information from the parsed string. -// It also implements the Parse function and getters for all the relevant -// information that has been extracted from a parsed User Agent string. -package user_agent - -import "strings" - -// A section contains the name of the product, its version and -// an optional comment. -type section struct { - name string - version string - comment []string -} - -// The UserAgent struct contains all the info that can be extracted -// from the User-Agent string. -type UserAgent struct { - ua string - mozilla string - platform string - os string - localization string - browser Browser - bot bool - mobile bool - undecided bool -} - -// Read from the given string until the given delimiter or the -// end of the string have been reached. -// -// The first argument is the user agent string being parsed. The second -// argument is a reference pointing to the current index of the user agent -// string. The delimiter argument specifies which character is the delimiter -// and the cat argument determines whether nested '(' should be ignored or not. -// -// Returns an array of bytes containing what has been read. -func readUntil(ua string, index *int, delimiter byte, cat bool) []byte { - var buffer []byte - - i := *index - catalan := 0 - for ; i < len(ua); i = i + 1 { - if ua[i] == delimiter { - if catalan == 0 { - *index = i + 1 - return buffer - } - catalan-- - } else if cat && ua[i] == '(' { - catalan++ - } - buffer = append(buffer, ua[i]) - } - *index = i + 1 - return buffer -} - -// Parse the given product, that is, just a name or a string -// formatted as Name/Version. -// -// It returns two strings. The first string is the name of the product and the -// second string contains the version of the product. -func parseProduct(product []byte) (string, string) { - prod := strings.SplitN(string(product), "/", 2) - if len(prod) == 2 { - return prod[0], prod[1] - } - return string(product), "" -} - -// Parse a section. A section is typically formatted as follows -// "Name/Version (comment)". Both, the comment and the version are optional. -// -// The first argument is the user agent string being parsed. The second -// argument is a reference pointing to the current index of the user agent -// string. -// -// Returns a section containing the information that we could extract -// from the last parsed section. -func parseSection(ua string, index *int) (s section) { - buffer := readUntil(ua, index, ' ', false) - - s.name, s.version = parseProduct(buffer) - if *index < len(ua) && ua[*index] == '(' { - *index++ - buffer = readUntil(ua, index, ')', true) - s.comment = strings.Split(string(buffer), "; ") - *index++ - } - return s -} - -// Initialize the parser. -func (p *UserAgent) initialize() { - p.ua = "" - p.mozilla = "" - p.platform = "" - p.os = "" - p.localization = "" - p.browser.Engine = "" - p.browser.EngineVersion = "" - p.browser.Name = "" - p.browser.Version = "" - p.bot = false - p.mobile = false - p.undecided = false -} - -// Parse the given User-Agent string and get the resulting UserAgent object. -// -// Returns an UserAgent object that has been initialized after parsing -// the given User-Agent string. -func New(ua string) *UserAgent { - o := &UserAgent{} - o.Parse(ua) - return o -} - -// Parse the given User-Agent string. After calling this function, the -// receiver will be setted up with all the information that we've extracted. -func (p *UserAgent) Parse(ua string) { - var sections []section - - p.initialize() - p.ua = ua - for index, limit := 0, len(ua); index < limit; { - s := parseSection(ua, &index) - if !p.mobile && s.name == "Mobile" { - p.mobile = true - } - sections = append(sections, s) - } - - if len(sections) > 0 { - if sections[0].name == "Mozilla" { - p.mozilla = sections[0].version - } - - p.detectBrowser(sections) - p.detectOS(sections[0]) - - if p.undecided { - p.checkBot(sections) - } - } -} - -// Returns the mozilla version (it's how the User Agent string begins: -// "Mozilla/5.0 ...", unless we're dealing with Opera, of course). -func (p *UserAgent) Mozilla() string { - return p.mozilla -} - -// Returns true if it's a bot, false otherwise. -func (p *UserAgent) Bot() bool { - return p.bot -} - -// Returns true if it's a mobile device, false otherwise. -func (p *UserAgent) Mobile() bool { - return p.mobile -} - -// Returns the original given user agent. -func (p *UserAgent) UA() string { - return p.ua -} |