/usr/lib/nodejs/css/node_modules/source-map-resolve/lib/source-map-resolve-node.js is in node-css 2.1.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 | // Copyright 2014 Simon Lydell
// X11 (“MIT”) Licensed. (See LICENSE.)
var sourceMappingURL = require("source-map-url")
var resolveUrl = require("./resolve-url")
var urix = require("urix")
var atob = require("atob")
function callbackAsync(callback, error, result) {
setImmediate(function() { callback(error, result) })
}
function parseMapToJSON(string) {
return JSON.parse(string.replace(/^\)\]\}'/, ""))
}
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)
}
read(mapData.url, function(error, result) {
if (error) {
return callback(error)
}
try {
mapData.map = parseMapToJSON(String(result))
} 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 = parseMapToJSON(String(read(mapData.url)))
return mapData
}
var dataUriRegex = /^data:([^,;]*)(;[^,;]*)*(?:,(.*))?$/
var jsonMimeTypeRegex = /^(?:application|text)\/json$/
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]
var lastParameter = dataUri[2]
var encoded = dataUri[3]
if (!jsonMimeTypeRegex.test(mimeType)) {
throw new Error("Unuseful data uri mime type: " + (mimeType || "text/plain"))
}
return {
sourceMappingURL: url,
url: null,
sourcesRelativeTo: codeUrl,
map: parseMapToJSON(lastParameter === ";base64" ? atob(encoded) : decodeURIComponent(encoded))
}
}
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.length
var errored = false
var result = {
sourcesResolved: [],
sourcesContent: []
}
var done = function(error) {
if (errored) {
return
}
if (error) {
errored = true
return callback(error)
}
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 {
read(fullUrl, function(error, source) {
result.sourcesContent[index] = String(source)
done(error)
})
}
})
}
function resolveSourcesSync(map, mapUrl, read, options) {
var result = {
sourcesResolved: [],
sourcesContent: []
}
resolveSourcesHelper(map, mapUrl, options, function(fullUrl, sourceContent, index) {
result.sourcesResolved[index] = fullUrl
if (read !== null) {
if (typeof sourceContent === "string") {
result.sourcesContent[index] = sourceContent
} else {
result.sourcesContent[index] = String(read(fullUrl))
}
}
})
return result
}
var endingSlash = /\/?$/
function resolveSourcesHelper(map, mapUrl, options, fn) {
options = options || {}
mapUrl = urix(mapUrl)
var fullUrl
var sourceContent
for (var index = 0, len = map.sources.length; index < len; index++) {
if (map.sourceRoot && !options.ignoreSourceRoot) {
// 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, map.sourceRoot.replace(endingSlash, "/"), map.sources[index])
} else {
fullUrl = resolveUrl(mapUrl, 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 = {}
}
resolveSourceMap(code, codeUrl, read, function(error, mapData) {
if (error) {
return callback(error)
}
if (!mapData) {
return callback(null, null)
}
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 = 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
}
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