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fx115: Remove support for OS.File instance from md5Async()

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This commit is contained in:
Dan Stillman 2023-12-04 05:19:16 -05:00
parent 95caebde2b
commit ef75f59037
1 changed files with 23 additions and 47 deletions
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70
chrome/content/zotero/xpcom/utilities_internal.js
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@ -138,69 +138,45 @@ Zotero.Utilities.Internal = {
/**
* @param {OS.File|nsIFile|String} file File or file path
* @param {nsIFile|String} file File or file path
* @param {Boolean} [base64=FALSE] Return as base-64-encoded string
* rather than hex string
*/
md5Async: async function (file, base64) {
const CHUNK_SIZE = 16384;
function toHexString(charCode) {
return ("0" + charCode.toString(16)).slice(-2);
}
var ch = Components.classes["@mozilla.org/security/hash;1"]
.createInstance(Components.interfaces.nsICryptoHash);
.createInstance(Components.interfaces.nsICryptoHash);
ch.init(ch.MD5);
// Recursively read chunks of the file and return a promise for the hash
let readChunk = async function (file) {
try {
let is = Cc["@mozilla.org/network/file-input-stream;1"]
.createInstance(Ci.nsIFileInputStream);
is.init(Zotero.File.pathToFile(file), -1, -1, Ci.nsIFileInputStream.CLOSE_ON_EOF);
ch.updateFromStream(is, -1);
let hash = ch.finish(base64);
// Base64
if (base64) {
return hash;
}
// Hex string
let hexStr = "";
for (let i = 0; i < hash.length; i++) {
hexStr += toHexString(hash.charCodeAt(i));
}
return hexStr;
}
catch (e) {
try {
let data = await file.read(CHUNK_SIZE);
ch.update(data, data.length);
if (data.length == CHUNK_SIZE) {
return readChunk(file);
}
let hash = ch.finish(base64);
// Base64
if (base64) {
return hash;
}
// Hex string
let hexStr = "";
for (let i = 0; i < hash.length; i++) {
hexStr += toHexString(hash.charCodeAt(i));
}
return hexStr;
ch.finish(false);
}
catch (e) {
try {
ch.finish(false);
}
catch (e) {
Zotero.logError(e);
}
throw e;
Zotero.logError(e);
}
};
if (file instanceof OS.File) {
return readChunk(file);
throw e;
}
var path = (file instanceof Components.interfaces.nsIFile) ? file.path : file;
var hash;
try {
var osFile = await OS.File.open(path);
hash = await readChunk(osFile);
}
finally {
if (osFile) {
await osFile.close();
}
}
return hash;
},