0
0
mirror of https://github.com/honojs/hono.git synced 2024-12-01 10:51:01 +00:00
hono/deno_dist/utils/url.ts

98 lines
2.3 KiB
TypeScript
Raw Normal View History

2022-07-02 06:09:45 +00:00
const URL_REGEXP = /^https?:\/\/[a-zA-Z0-9\-\.:]+(\/?[^?#]*)/
export type Pattern = readonly [string, string, RegExp | true] | '*'
export const splitPath = (path: string): string[] => {
const paths = path.split(/\//) // faster than path.split('/')
if (paths[0] === '') {
paths.shift()
}
return paths
}
const patternCache: { [key: string]: Pattern } = {}
export const getPattern = (label: string): Pattern | null => {
// * => wildcard
// :id{[0-9]+} => ([0-9]+)
// :id => (.+)
//const name = ''
if (label === '*') {
return '*'
}
const match = label.match(/^\:([^\{\}]+)(?:\{(.+)\})?$/)
if (match) {
if (!patternCache[label]) {
if (match[2]) {
patternCache[label] = [label, match[1], new RegExp('^' + match[2] + '$')]
} else {
patternCache[label] = [label, match[1], true]
}
}
return patternCache[label]
}
return null
}
export const getPathFromURL = (url: string, strict: boolean = true): string => {
const queryIndex = url.indexOf('?')
const result = url.substring(url.indexOf('/', 8), queryIndex === -1 ? url.length : queryIndex)
// if strict routing is false => `/hello/hey/` and `/hello/hey` are treated the same
// default is true
if (strict === false && result.endsWith('/')) {
return result.slice(0, -1)
}
return result
}
export const getQueryStringFromURL = (url: string): string => {
const queryIndex = url.indexOf('?')
const result = queryIndex !== -1 ? url.substring(queryIndex) : ''
return result
}
2022-07-02 06:09:45 +00:00
export const isAbsoluteURL = (url: string): boolean => {
const match = url.match(URL_REGEXP)
if (match) {
return true
}
return false
}
export const mergePath = (...paths: string[]): string => {
let p: string = ''
let endsWithSlash = false
for (let path of paths) {
/* ['/hey/','/say'] => ['/hey', '/say'] */
if (p.endsWith('/')) {
p = p.slice(0, -1)
endsWithSlash = true
}
/* ['/hey','say'] => ['/hey', '/say'] */
if (!path.startsWith('/')) {
path = `/${path}`
}
/* ['/hey/', '/'] => `/hey/` */
if (path === '/' && endsWithSlash) {
p = `${p}/`
} else if (path !== '/') {
p = `${p}${path}`
}
/* ['/', '/'] => `/` */
if (path === '/' && p === '') {
p = '/'
}
}
return p
}