SkySpark by SkyFoundry

const class sys::Uri

sys::Obj
  sys::Uri

@Serializable { simple=true }

Source

Uri is used to immutably represent a Universal Resource Identifier according to RFC 3986. The generic format for a URI is:

<uri>        := [<scheme> ":"] <body>
<body>       := ["//" <auth>] ["/" <path>] ["?" <query>] ["#" <frag>]
<auth>       := [<userInfo> "@"] <host> [":" <port>]
<path>       := <name> ("/" <name>)*
<name>       := <basename> ["." <ext>]
<query>      := <queryPair> (<querySep> <queryPair>)*
<querySep>   := "&" | ";"
<queryPair>  := <queryKey> ["=" <queryVal>]
<gen-delims> := ":" / "/" / "?" / "#" / "[" / "]" / "@"

Uris are expressed in the following forms:

In standard form the full range of Unicode characters is allowed in all sections except the general delimiters which separate sections. For example ? is barred in any section before the query, but is permissible in the query string itself or the fragment identifier. The scheme must be strictly defined in terms of ASCII alphanumeric, ".", "+", or "-". Any general delimiter used outside of its normal role, must be escaped using the "\" backslash character. The backslash itself is escaped as "\\". For example a filename with the "#" character is represented as "file \#2". Only the path, query, and fragment sections can use escaped general delimiters; the scheme and authority sections cannot use escaped general delimters.

Encoded form as defined by RFC 3986 uses a stricter set of rules for the characters allowed in each section of the URI (scheme, userInfo, host, path, query, and fragment). Any character outside of the allowed set is UTF-8 encoded into octets and %HH percent encoded. The encoded form should be used when working with external applications such as HTTP, HTML, or XML.

The Uri API is designed to work with the standard form of the Uri. Access methods like host, pathStr, or queryStr all use standard form. To summarize different ways of working with Uri:

Uri can be used to model either absolute URIs or relative references. The plus and relTo methods can be used to resolve and relativize relative references against a base URI.

auth

Str? auth()

Source

The authority represents a network endpoint in the format:

[<userInfo> "@"] host [":" <port>]

Examples:

`http://user@host:99/`.auth  =>  "user@host:99"
`http://host/`.auth          =>  "host"
`/dir/file.txt`.auth         =>  null
basename

Str basename()

Source

Return file name without the extension (everything up to the last dot) or "" if name is "".

Examples:

`/`.basename            =>  ""
`/a/file.txt`.basename  =>  "file"
`/a/file`.basename      =>  "file"
`/a/file.`.basename     =>  "file"
`..`.basename           =>  ".."
checkName

const static Void checkName(Str name)

Source

If the specified string is not a valid name according to the isName method, then throw NameErr.

decode

const static Uri? decode(Str s, Bool checked := true)

Source

Parse an ASCII percent encoded string into a Uri according to RFC 3986. All %HH escape sequences are translated into octects, and then the octect sequence is UTF-8 decoded into a Str. The + character in the query section is unescaped into a space. If checked if true then throw ParseErr if the string is a malformed URI or if not encoded correctly, otherwise return null. Refer to fromStr for normalization rules.

decodeQuery

const static Str:Str decodeQuery(Str s)

Source

Decode a map of query parameters which are URL encoded according to the "application/x-www-form-urlencoded" MIME type. This method will unescape % percent encoding and + into space. The parameters are parsed into map using the same semantics as Uri.query. Throw ArgErr is the string is malformed. See encodeQuery.

defVal

const static Uri defVal

Source

Default value is ``.

encode

Str encode()

Source

Return the percent encoded string for this Uri according to RFC 3986. Each section of the Uri is UTF-8 encoded into octects and then percent encoded according to its valid character set. Spaces in the query section are encoded as +.

encodeQuery

const static Str encodeQuery(Str:Str q)

Source

Encode a map of query parameters into URL percent encoding according to the "application/x-www-form-urlencoded" MIME type. See decodeQuery.

equals

virtual override Bool equals(Obj? that)

Source

Two Uris are equal if they have same string normalized representation.

ext

Str? ext()

Source

Return file name extension (everything after the last dot) or null if name is null or name has no dot.

Examples:

`/`.ext            =>  null
`/a/file.txt`.ext  =>  "txt"
`/Foo.Bar`.ext     =>  "Bar"
`/a/file`.ext      =>  null
`/a/file.`.ext     =>  ""
`..`.ext           =>  null
frag

Str? frag()

Source

Return the fragment component of the Uri which is everything after the "#". Return null if no fragment specified.

Examples:

`http://host/path?query#frag`.frag  =>  "frag"
`http://host/path`                  =>  null
`#h1`                               =>  "h1"
fromStr

static new fromStr(Str s, Bool checked := true)

Source

Parse the specified string into a Uri. If invalid format and checked is false return null, otherwise throw ParseErr. a standard form Unicode string into its generic parts. It does not unescape % or + and handles normal Unicode characters in the string. If general delimiters such as the "?" or "#" characters are used outside their normal role, then they must be backslash escaped.

All Uris are automatically normalized as follows:

  • Replacing "." and ".." segments in the middle of a path
  • Scheme always normalizes to lowercase
  • If http then port 80 normalizes to null
  • If http then a null path normalizes to /
get

Obj? get(Obj? base := null, Bool checked := true)

Source

Resolve this Uri into an Fantom object. See docLang for the resolve process.

getRange

@Operator
Uri getRange(Range r)

Source

Return a new Uri based on a slice of this Uri's path. If the range starts at zero, then the authority is included otherwise it is stripped and the result is not path absolute. If the range includes the last name in the path, then the query and fragment are included otherwise they are stripped and the result includes a trailing slash. The range can include negative indices to access from the end of the path. Also see pathOnly to create a slice without the authority, query, or fragment.

Examples:

`http://host/a/b/c?q`[0..-1]  =>  `http://host/a/b/c?q`
`http://host/a/b/c?q`[0..-2]  =>  `http://host/a/b/`
`http://host/a/b/c?q`[0..-3]  =>  `http://host/a/`
`http://host/a/b/c?q`[0..-4]  =>  `http://host/`
`http://host/a/b/c?q`[1..-1]  =>  `b/c?q`
`http://host/a/b/c?q`[2..-1]  =>  `c?q`
`http://host/a/b/c?q`[3..-1]  =>  `?q`
`/a/b/c/`[0..1]               =>  `/a/b/`
`/a/b/c/`[0..0]               =>  `/a/`
`/a/b/c/`[1..2]               =>  `b/c/`
`/a/b/c/`[1..<2]              =>  `b/`
`/a`[0..-2]                   =>  `/`
getRangeToPathAbs

Uri getRangeToPathAbs(Range r)

Source

Return a slice of this Uri's path using the same semantics as getRange. However this method ensures that the result has a leading slash in the path such that isPathAbs returns true.

Examples:

`/a/b/c/`.getRangeToPathAbs(0..1)  =>  `/a/b/`
`/a/b/c/`.getRangeToPathAbs(1..2)  =>  `/b/c/`
`/a/b/c/`.getRangeToPathAbs(1..<2) =>  `/b/`
hash

virtual override Int hash()

Source

Return a hash code based on the normalized string representation.

host

Str? host()

Source

Return the host address of the URI or null if not available. The host is in the format of a DNS name, IPv4 address, or IPv6 address surrounded by square brackets. Return null if the uri is not absolute.

Examples:

`ftp://there:78/file`.host            =>  "there"
`http://www.cool.com/`.host           =>  "www.cool.com"
`http://user@10.162.255.4/index`.host =>  "10.162.255.4"
`http://[::192.9.5.5]/`.host          =>  "[::192.9.5.5]"
`//foo/bar`.host                      =>  "foo"
`/bar`.host                           =>  null
isAbs

Bool isAbs()

Source

Return if an absolute Uri which means it has a non-null scheme.

isDir

Bool isDir()

Source

A Uri represents a directory if it has a non-null path which ends with a "/" slash. Directories are joined with other Uris relative to themselves versus non-directories which are joined relative to their parent.

Examples:

`/a/b`.isDir   =>  false
`/a/b/`.isDir  =>  true
`/a/?q`.isDir  =>  true
isName

const static Bool isName(Str name)

Source

Return if the specified string is an valid name segment to use in an unencoded URI. The name must be at least one char long and can never be "." or "..". The legal characters are defined by as follows from RFC 3986:

unreserved  =  ALPHA / DIGIT / "-" / "." / "_" / "~"
ALPHA       =  %x41-5A / %x61-7A   ; A-Z / a-z
DIGIT       =  %x30-39 ; 0-9

Although RFC 3986 does allow path segments to contain other special characters such as sub-delims, Fantom takes a strict approach to names to be used in URIs.

isPathAbs

Bool isPathAbs()

Source

Return if the path starts with a leading slash. If pathStr is null, then return false.

Examples:

`http://foo/`.isPathAbs    =>  true
`/dir/f.txt`.isPathAbs     =>  true
`dir/f.txt`.isPathAbs      =>  false
`../index.html`.isPathAbs  =>  false
isPathOnly

Bool isPathOnly()

Source

Return if this Uri contains only a path component. The authority (scheme, host, port), query, and fragment must be null.

isRel

Bool isRel()

Source

Return if a relative Uri which means it has a null scheme.

mimeType

MimeType? mimeType()

Source

Return the MimeType mapped by the ext or null if no mapping. If this uri is to a directory, then "x-directory/normal" is returned.

Examples:

`file.txt`  =>  text/plain
`somefile`  =>  null
name

Str name()

Source

Return simple file name which is path.last or "" if the path is empty.

Examples:

`/`.name            =>  ""
`/a/file.txt`.name  =>  "file.txt"
`/a/file`.name      =>  "file"
`somedir/`.name     =>  "somedir"
parent

Uri? parent()

Source

Return the parent directory of this Uri or null if a parent path cannot be computed from this Uri. If the path is not empty, then this method is equivalent to getRange(0..-2).

Examples:

`http://foo/a/b/c?q#f`.parent  =>  `http://foo/a/b/`
`/a/b/c/`.parent  =>  `/a/b/`)
`a/b/c`.parent    =>  `a/b/`
`/a`.parent       =>   `/`
`/`.parent        =>   null
`a.txt`.parent    =>   null
path

Str[] path()

Source

Return the path parsed into a list of simple names or an empty list if the pathStr is "" or "/". Any general delimiters in the path such "?" or "#" are backslash escaped.

Examples:

`mailto:me@there.com`  =>  ["me@there.com"]
`http://host`.path     =>  Str[,]
`http://foo/`.path     =>  Str[,]
`/`.path               =>  Str[,]
`/a`.path              =>  ["a"]
`/a/b`.path            =>  ["a", "b"]
`../a/b`.path          =>  ["..", "a", "b"]
pathOnly

Uri pathOnly()

Source

Return a new Uri with only a path part. If this Uri has an authority, fragment, or query they are stripped off.

Examples:

`http://host/a/b/c?query`.pathOnly =>  `/a/b/c`
`http://host/a/b/c/`.pathOnly      =>  `/a/b/c/`
`/a/b/c`.pathOnly                  =>  `/a/b/c`
`file.txt`.pathOnly                =>  `file.txt`
pathStr

Str pathStr()

Source

Return the path component of the Uri. Any general delimiters in the path such "?" or "#" are backslash escaped.

Examples:

`mailto:me@there.com`  =>  "me@there.com"
`http://host`          =>  ""
`http://foo/`.pathStr  =>  "/"
`/a`.pathStr           =>  "/a"
`/a/b`.pathStr         =>  "/a/b"
`../a/b`.pathStr       =>  "../a/b"
plus

@Operator
Uri plus(Uri toAppend)

Source

Return a new Uri with the specified Uri appended to this Uri.

Examples:

`http://foo/path` + `http://bar/`  =>  `http://bar/`
`http://foo/path?q#f` + `newpath`  =>  `http://foo/newpath`
`http://foo/path/?q#f` + `newpath` =>  `http://foo/path/newpath`
`a/b/c`  + `d`                     =>  `a/b/d`
`a/b/c/` + `d`                     =>  `a/b/c/d`
`a/b/c`  + `../../d`               =>  `d`
`a/b/c/` + `../../d`               =>  `a/d`
`a/b/c`  + `../../../d`            =>  `../d`
`a/b/c/` + `../../../d`            =>  `d`
plusName

Uri plusName(Str name, Bool asDir := false)

Source

Return a new Uri with a single path name appended to this Uri. If asDir is true, then add a trailing slash to the Uri to make it a directory Uri. This method is potentially much more efficient than using plus when appending a single name.

Examples:

`dir/`.plusName("foo")        =>  `dir/foo`
`dir/`.plusName("foo", true)  =>  `dir/foo/`
`/dir/file`.plusName("foo")   =>  `/dir/foo`
`/dir/#frag`.plusName("foo")  =>  `/dir/foo`
plusQuery

Uri plusQuery([Str:Str]? query)

Source

Add the specified query key/value pairs to this Uri. If this uri has an existing query, then it is merged with the given query. The key/value pairs should not be backslash escaped or percent encoded. If the query param is null or empty, return this instance.

Examples:

`http://h/`.plusQuery(["k":"v"])         =>  `http://h/?k=v`
`http://h/?k=old`.plusQuery(["k":"v"])   =>  `http://h/?k=v`
`/foo?a=b`.plusQuery(["k":"v"])          =>  `/foo?a=b&k=v`
`?a=b`.plusQuery(["k1":"v1", "k2":"v2"]) =>  `?a=b&k1=v1&k2=v2`
plusSlash

Uri plusSlash()

Source

Add a trailing slash to the path string of this Uri to make it a directory Uri.

Examples

`http://h/dir`.plusSlash  => `http://h/dir/`
`/a`.plusSlash            =>  `/a/`
`/a/`.plusSlash           =>  `/a/`
`/a/b`.plusSlash          =>  `/a/b/`
`/a?q`.plusSlash          =>  `/a/?q`
port

Int? port()

Source

Return the IP port of the host for the network end point. It is optionally embedded in the authority using the ":" character. If unspecified then return null.

Examples:

`http://foo:81/`.port        =>  81
`http://www.cool.com/`.port  =>  null
query

Str:Str query()

Source

Return the query parsed as a map of key/value pairs. If no query string was specified return an empty map (this method will never return null). The query is parsed such that pairs are separated by the "&" or ";" characters. If a pair contains the "=", then it is split into a key and value, otherwise the value defaults to "true". If delimiters such as "&", "=", or ";" are in the keys or values, then they are not escaped. If duplicate keys are detected, then the values are concatenated together with a comma.

Examples:

`http://host/path?query`.query  =>  ["query":"true"]
`http://host/path`.query        =>  [:]
`?a=b;c=d`.query                =>  ["a":"b", "c":"d"]
`?a=b&c=d`.query                =>  ["a":"b", "c":"d"]
`?a=b;;c=d;`.query              =>  ["a":"b", "c":"d"]
`?a=b;;c`.query                 =>  ["a":"b", "c":"true"]
`?x=1&x=2&x=3`.query            =>  ["x":"1,2,3"]
queryStr

Str? queryStr()

Source

Return the query component of the Uri which is everything after the "?" but before the "#" fragment. Return null if no query string specified. Any delimiters used in keys or values such as "&", "=", or ";" are backslash escaped.

Examples:

`http://host/path?query#frag`.queryStr =>  "query"
`http://host/path?query`.queryStr      =>  "query"
`http://host/path`.queryStr            =>  null
`../foo?a=b&c=d`.queryStr              =>  "a=b&c=d"
`?a=b;c;`.queryStr                     =>  "a=b;c;"
relTo

Uri relTo(Uri base)

Source

Relativize this uri against the specified base.

Examples:

`http://foo/a/b/c`.relTo(`http://foo/a/b/c`) => ``
`http://foo/a/b/c`.relTo(`http://foo/a/b`)   => `c`
`/a/b/c`.relTo(`/a`)                         => `b/c`
`a/b/c`.relTo(`/a`)                          => `b/c`
`/a/b/c?q`.relTo(`/`)                        => `a/b/c?q`
`/a/x`.relTo(`/a/b/c`)                       => `../x`
relToAuth

Uri relToAuth()

Source

Relativize this uri against its authority. This method strips the authority if present and keeps the path, query, and fragment segments.

Examples:

`http://host/a/b/c?q#frag`.relToAuth  => `/a/b/c?q#frag`
`http://host/a/b/c`.relToAuth         => `/a/b/c`
`http://user@host/index`.relToAuth    => `/index`
`mailto:bob@bob.net`.relToAuth        => `bob@bob.net`
`/a/b/c/`.relToAuth                   => `/a/b/c/`
`logo.png`.relToAuth                  => `logo.png`
scheme

Str? scheme()

Source

Return the scheme component or null if not absolute. The scheme is always normalized into lowercase.

Examples:

`http://foo/a/b/c`.scheme      =>  "http"
`HTTP://foo/a/b/c`.scheme      =>  "http"
`mailto:who@there.com`.scheme  =>  "mailto"
toCode

Str toCode()

Source

Get this Uri as a Fantom code literal. This method will escape the "$" interpolation character.

toFile

File toFile()

Source

Convenience for File.make(this) - no guarantee is made that the file exists.

toLocale

Str toLocale()

Source

Return toStr. This method is used to enable toLocale to be used with duck typing across most built-in types.

toStr

virtual override Str toStr()

Source

Return normalized string representation.

userInfo

Str? userInfo()

Source

User info is string information embedded in the authority using the "@" character. Its use is discouraged for security reasons.

Examples:

`http://brian:pass@host/`.userInfo  =>  "brian:pass"
`http://www.cool.com/`.userInfo     =>  null