343 lines
8.7 KiB
JavaScript
343 lines
8.7 KiB
JavaScript
|
var sourceMappingURL = require("source-map-url")
|
||
|
|
|
||
|
|
var resolveUrl = require("./resolve-url")
|
||
|
|
var decodeUriComponent = require("./decode-uri-component")
|
||
|
|
var urix = require("urix")
|
||
|
|
var atob = require("atob")
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function callbackAsync(callback, error, result) {
|
||
|
|
setImmediate(function() { callback(error, result) })
|
||
|
|
}
|
||
|
|
|
||
|
|
function parseMapToJSON(string, data) {
|
||
|
|
try {
|
||
|
|
return JSON.parse(string.replace(/^\)\]\}'/, ""))
|
||
|
|
} catch (error) {
|
||
|
|
error.sourceMapData = data
|
||
|
|
throw error
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function readSync(read, url, data) {
|
||
|
|
var readUrl = decodeUriComponent(url)
|
||
|
|
try {
|
||
|
|
return String(read(readUrl))
|
||
|
|
} catch (error) {
|
||
|
|
error.sourceMapData = data
|
||
|
|
throw error
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function resolveSourceMap(code, codeUrl, read, callback) {
|
||
|
|
var mapData
|
||
|
|
try {
|
||
|
|
mapData = resolveSourceMapHelper(code, codeUrl)
|
||
|
|
} catch (error) {
|
||
|
|
return callbackAsync(callback, error)
|
||
|
|
}
|
||
|
|
if (!mapData || mapData.map) {
|
||
|
|
return callbackAsync(callback, null, mapData)
|
||
|
|
}
|
||
|
|
var readUrl = decodeUriComponent(mapData.url)
|
||
|
|
read(readUrl, function(error, result) {
|
||
|
|
if (error) {
|
||
|
|
error.sourceMapData = mapData
|
||
|
|
return callback(error)
|
||
|
|
}
|
||
|
|
mapData.map = String(result)
|
||
|
|
try {
|
||
|
|
mapData.map = parseMapToJSON(mapData.map, mapData)
|
||
|
|
} catch (error) {
|
||
|
|
return callback(error)
|
||
|
|
}
|
||
|
|
callback(null, mapData)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
function resolveSourceMapSync(code, codeUrl, read) {
|
||
|
|
var mapData = resolveSourceMapHelper(code, codeUrl)
|
||
|
|
if (!mapData || mapData.map) {
|
||
|
|
return mapData
|
||
|
|
}
|
||
|
|
mapData.map = readSync(read, mapData.url, mapData)
|
||
|
|
mapData.map = parseMapToJSON(mapData.map, mapData)
|
||
|
|
return mapData
|
||
|
|
}
|
||
|
|
|
||
|
|
var dataUriRegex = /^data:([^,;]*)(;[^,;]*)*(?:,(.*))?$/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The media type for JSON text is application/json.
|
||
|
|
*
|
||
|
|
* {@link https://tools.ietf.org/html/rfc8259#section-11 | IANA Considerations }
|
||
|
|
*
|
||
|
|
* `text/json` is non-standard media type
|
||
|
|
*/
|
||
|
|
var jsonMimeTypeRegex = /^(?:application|text)\/json$/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* JSON text exchanged between systems that are not part of a closed ecosystem
|
||
|
|
* MUST be encoded using UTF-8.
|
||
|
|
*
|
||
|
|
* {@link https://tools.ietf.org/html/rfc8259#section-8.1 | Character Encoding}
|
||
|
|
*/
|
||
|
|
var jsonCharacterEncoding = "utf-8"
|
||
|
|
|
||
|
|
function base64ToBuf(b64) {
|
||
|
|
var binStr = atob(b64)
|
||
|
|
var len = binStr.length
|
||
|
|
var arr = new Uint8Array(len)
|
||
|
|
for (var i = 0; i < len; i++) {
|
||
|
|
arr[i] = binStr.charCodeAt(i)
|
||
|
|
}
|
||
|
|
return arr
|
||
|
|
}
|
||
|
|
|
||
|
|
function decodeBase64String(b64) {
|
||
|
|
if (typeof TextDecoder === "undefined" || typeof Uint8Array === "undefined") {
|
||
|
|
return atob(b64)
|
||
|
|
}
|
||
|
|
var buf = base64ToBuf(b64);
|
||
|
|
// Note: `decoder.decode` method will throw a `DOMException` with the
|
||
|
|
// `"EncodingError"` value when an coding error is found.
|
||
|
|
var decoder = new TextDecoder(jsonCharacterEncoding, {fatal: true})
|
||
|
|
return decoder.decode(buf);
|
||
|
|
}
|
||
|
|
|
||
|
|
function resolveSourceMapHelper(code, codeUrl) {
|
||
|
|
codeUrl = urix(codeUrl)
|
||
|
|
|
||
|
|
var url = sourceMappingURL.getFrom(code)
|
||
|
|
if (!url) {
|
||
|
|
return null
|
||
|
|
}
|
||
|
|
|
||
|
|
var dataUri = url.match(dataUriRegex)
|
||
|
|
if (dataUri) {
|
||
|
|
var mimeType = dataUri[1] || "text/plain"
|
||
|
|
var lastParameter = dataUri[2] || ""
|
||
|
|
var encoded = dataUri[3] || ""
|
||
|
|
var data = {
|
||
|
|
sourceMappingURL: url,
|
||
|
|
url: null,
|
||
|
|
sourcesRelativeTo: codeUrl,
|
||
|
|
map: encoded
|
||
|
|
}
|
||
|
|
if (!jsonMimeTypeRegex.test(mimeType)) {
|
||
|
|
var error = new Error("Unuseful data uri mime type: " + mimeType)
|
||
|
|
error.sourceMapData = data
|
||
|
|
throw error
|
||
|
|
}
|
||
|
|
try {
|
||
|
|
data.map = parseMapToJSON(
|
||
|
|
lastParameter === ";base64" ? decodeBase64String(encoded) : decodeURIComponent(encoded),
|
||
|
|
data
|
||
|
|
)
|
||
|
|
} catch (error) {
|
||
|
|
error.sourceMapData = data
|
||
|
|
throw error
|
||
|
|
}
|
||
|
|
return data
|
||
|
|
}
|
||
|
|
|
||
|
|
var mapUrl = resolveUrl(codeUrl, url)
|
||
|
|
return {
|
||
|
|
sourceMappingURL: url,
|
||
|
|
url: mapUrl,
|
||
|
|
sourcesRelativeTo: mapUrl,
|
||
|
|
map: null
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function resolveSources(map, mapUrl, read, options, callback) {
|
||
|
|
if (typeof options === "function") {
|
||
|
|
callback = options
|
||
|
|
options = {}
|
||
|
|
}
|
||
|
|
var pending = map.sources ? map.sources.length : 0
|
||
|
|
var result = {
|
||
|
|
sourcesResolved: [],
|
||
|
|
sourcesContent: []
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pending === 0) {
|
||
|
|
callbackAsync(callback, null, result)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
var done = function() {
|
||
|
|
pending--
|
||
|
|
if (pending === 0) {
|
||
|
|
callback(null, result)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
resolveSourcesHelper(map, mapUrl, options, function(fullUrl, sourceContent, index) {
|
||
|
|
result.sourcesResolved[index] = fullUrl
|
||
|
|
if (typeof sourceContent === "string") {
|
||
|
|
result.sourcesContent[index] = sourceContent
|
||
|
|
callbackAsync(done, null)
|
||
|
|
} else {
|
||
|
|
var readUrl = decodeUriComponent(fullUrl)
|
||
|
|
read(readUrl, function(error, source) {
|
||
|
|
result.sourcesContent[index] = error ? error : String(source)
|
||
|
|
done()
|
||
|
|
})
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
function resolveSourcesSync(map, mapUrl, read, options) {
|
||
|
|
var result = {
|
||
|
|
sourcesResolved: [],
|
||
|
|
sourcesContent: []
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!map.sources || map.sources.length === 0) {
|
||
|
|
return result
|
||
|
|
}
|
||
|
|
|
||
|
|
resolveSourcesHelper(map, mapUrl, options, function(fullUrl, sourceContent, index) {
|
||
|
|
result.sourcesResolved[index] = fullUrl
|
||
|
|
if (read !== null) {
|
||
|
|
if (typeof sourceContent === "string") {
|
||
|
|
result.sourcesContent[index] = sourceContent
|
||
|
|
} else {
|
||
|
|
var readUrl = decodeUriComponent(fullUrl)
|
||
|
|
try {
|
||
|
|
result.sourcesContent[index] = String(read(readUrl))
|
||
|
|
} catch (error) {
|
||
|
|
result.sourcesContent[index] = error
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
return result
|
||
|
|
}
|
||
|
|
|
||
|
|
var endingSlash = /\/?$/
|
||
|
|
|
||
|
|
function resolveSourcesHelper(map, mapUrl, options, fn) {
|
||
|
|
options = options || {}
|
||
|
|
mapUrl = urix(mapUrl)
|
||
|
|
var fullUrl
|
||
|
|
var sourceContent
|
||
|
|
var sourceRoot
|
||
|
|
for (var index = 0, len = map.sources.length; index < len; index++) {
|
||
|
|
sourceRoot = null
|
||
|
|
if (typeof options.sourceRoot === "string") {
|
||
|
|
sourceRoot = options.sourceRoot
|
||
|
|
} else if (typeof map.sourceRoot === "string" && options.sourceRoot !== false) {
|
||
|
|
sourceRoot = map.sourceRoot
|
||
|
|
}
|
||
|
|
// If the sourceRoot is the empty string, it is equivalent to not setting
|
||
|
|
// the property at all.
|
||
|
|
if (sourceRoot === null || sourceRoot === '') {
|
||
|
|
fullUrl = resolveUrl(mapUrl, map.sources[index])
|
||
|
|
} else {
|
||
|
|
// Make sure that the sourceRoot ends with a slash, so that `/scripts/subdir` becomes
|
||
|
|
// `/scripts/subdir/<source>`, not `/scripts/<source>`. Pointing to a file as source root
|
||
|
|
// does not make sense.
|
||
|
|
fullUrl = resolveUrl(mapUrl, sourceRoot.replace(endingSlash, "/"), map.sources[index])
|
||
|
|
}
|
||
|
|
sourceContent = (map.sourcesContent || [])[index]
|
||
|
|
fn(fullUrl, sourceContent, index)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function resolve(code, codeUrl, read, options, callback) {
|
||
|
|
if (typeof options === "function") {
|
||
|
|
callback = options
|
||
|
|
options = {}
|
||
|
|
}
|
||
|
|
if (code === null) {
|
||
|
|
var mapUrl = codeUrl
|
||
|
|
var data = {
|
||
|
|
sourceMappingURL: null,
|
||
|
|
url: mapUrl,
|
||
|
|
sourcesRelativeTo: mapUrl,
|
||
|
|
map: null
|
||
|
|
}
|
||
|
|
var readUrl = decodeUriComponent(mapUrl)
|
||
|
|
read(readUrl, function(error, result) {
|
||
|
|
if (error) {
|
||
|
|
error.sourceMapData = data
|
||
|
|
return callback(error)
|
||
|
|
}
|
||
|
|
data.map = String(result)
|
||
|
|
try {
|
||
|
|
data.map = parseMapToJSON(data.map, data)
|
||
|
|
} catch (error) {
|
||
|
|
return callback(error)
|
||
|
|
}
|
||
|
|
_resolveSources(data)
|
||
|
|
})
|
||
|
|
} else {
|
||
|
|
resolveSourceMap(code, codeUrl, read, function(error, mapData) {
|
||
|
|
if (error) {
|
||
|
|
return callback(error)
|
||
|
|
}
|
||
|
|
if (!mapData) {
|
||
|
|
return callback(null, null)
|
||
|
|
}
|
||
|
|
_resolveSources(mapData)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
function _resolveSources(mapData) {
|
||
|
|
resolveSources(mapData.map, mapData.sourcesRelativeTo, read, options, function(error, result) {
|
||
|
|
if (error) {
|
||
|
|
return callback(error)
|
||
|
|
}
|
||
|
|
mapData.sourcesResolved = result.sourcesResolved
|
||
|
|
mapData.sourcesContent = result.sourcesContent
|
||
|
|
callback(null, mapData)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function resolveSync(code, codeUrl, read, options) {
|
||
|
|
var mapData
|
||
|
|
if (code === null) {
|
||
|
|
var mapUrl = codeUrl
|
||
|
|
mapData = {
|
||
|
|
sourceMappingURL: null,
|
||
|
|
url: mapUrl,
|
||
|
|
sourcesRelativeTo: mapUrl,
|
||
|
|
map: null
|
||
|
|
}
|
||
|
|
mapData.map = readSync(read, mapUrl, mapData)
|
||
|
|
mapData.map = parseMapToJSON(mapData.map, mapData)
|
||
|
|
} else {
|
||
|
|
mapData = resolveSourceMapSync(code, codeUrl, read)
|
||
|
|
if (!mapData) {
|
||
|
|
return null
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var result = resolveSourcesSync(mapData.map, mapData.sourcesRelativeTo, read, options)
|
||
|
|
mapData.sourcesResolved = result.sourcesResolved
|
||
|
|
mapData.sourcesContent = result.sourcesContent
|
||
|
|
return mapData
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
resolveSourceMap: resolveSourceMap,
|
||
|
|
resolveSourceMapSync: resolveSourceMapSync,
|
||
|
|
resolveSources: resolveSources,
|
||
|
|
resolveSourcesSync: resolveSourcesSync,
|
||
|
|
resolve: resolve,
|
||
|
|
resolveSync: resolveSync,
|
||
|
|
parseMapToJSON: parseMapToJSON
|
||
|
|
}
|