domainutil

Documentation

Index

• func Domain(url string) string
• func DomainPrefix(url string) string
• func DomainSuffix(url string) string
• func HasSubdomain(domain string) bool
• func HasSubdomainQuantity(domain string, quantity int) bool
• func Password(url string) string
• func Protocol(url string) string
• func SplitDomain(url string) []string
• func Subdomain(url string) string
• func Username(url string) string

Examples

• Domain
• DomainSuffix
• HasSubdomain
• Password
• Protocol
• Subdomain
• Username

Functions

func Domain

func Domain(url string) string

Domain returns top level domain from url string. If no domain is found in provided url, this function returns empty string. If no TLD is found in provided url, this function returns empty string.

Example

fmt.Println(Domain("google.co.uk"))
fmt.Println(Domain("keep.google.com"))

Output:

google.co.uk
google.com

func DomainPrefix

func DomainPrefix(url string) string

DomainPrefix returns second-level domain from provided url. If no SLD is found in provided url, this function returns empty string.

func DomainSuffix

func DomainSuffix(url string) string

DomainSuffix returns domain suffix from provided url. If no TLD is found in provided url, this function returns empty string.

Example

fmt.Println(DomainSuffix("google.co.uk"))
fmt.Println(DomainSuffix("keep.google.com"))

Output:

co.uk
com

func HasSubdomain

func HasSubdomain(domain string) bool

HasSubdomain reports whether domain contains any subdomain.

Example

fmt.Println(HasSubdomain("google.com"))
fmt.Println(HasSubdomain("keep.google.com"))

Output:

false
true

func HasSubdomainQuantity

func HasSubdomainQuantity(domain string, quantity int) bool

HasSubdomainQuantity checks the amount of subdomains in domain. If quantity matches the number of subdomains in domain, this function returns true.

func Password

func Password(url string) string

Password returns password from given url

If password is not present - return empty string

Example

fmt.Printf("%q\n", Password("user:pass@google.com"))
fmt.Printf("%q\n", Password("https://user:pass@google.com"))
fmt.Printf("%q\n", Password("https://user@google.com"))
fmt.Printf("%q\n", Password("https://google.com"))
fmt.Printf("%q\n", Password("google.com"))

Output:

"pass"
"pass"
""
""
""

func Protocol

func Protocol(url string) string

Protocol returns protocol from given url

If protocol is not present - return empty string

Example

fmt.Printf("%q\n", Protocol("google.com"))
fmt.Printf("%q\n", Protocol("ftp://google.com"))
fmt.Printf("%q\n", Protocol("http://google.com"))
fmt.Printf("%q\n", Protocol("https://google.com"))
fmt.Printf("%q\n", Protocol("https://user@google.com"))
fmt.Printf("%q\n", Protocol("https://user:pass@google.com"))

Output:

""
"ftp"
"http"
"https"
"https"
"https"

func SplitDomain

func SplitDomain(url string) []string

SplitDomain split domain into string array for example, zh.wikipedia.org will split into {"zh", "wikipedia", "org"}

func Subdomain

func Subdomain(url string) string

Subdomain returns subdomain from provided url. If subdomain is not found in provided url, this function returns empty string.

Example

fmt.Printf("%q %q", Subdomain("google.com"), Subdomain("keep.google.com"))

Output:

"" "keep"

func Username

func Username(url string) string

Username returns username from given url

If username is not present - return empty string

Example

fmt.Printf("%q\n", Username("user:pass@google.com"))
fmt.Printf("%q\n", Username("https://user:pass@google.com"))
fmt.Printf("%q\n", Username("https://user@google.com"))
fmt.Printf("%q\n", Username("https://google.com"))
fmt.Printf("%q\n", Username("google.com"))

Output:

"user"
"user"
"user"
""
""