suzanne.soy/zotero
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Improve detection of JPEG, GIF and PNG without extensions

Browse Source
This commit is contained in:
Dan Stillman 2007-10-23 05:54:03 +00:00
parent 9a44efa8cf
commit 6783ba91c3
1 changed files with 27 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
chrome/content/zotero/xpcom/mime.js
View File

@ -34,15 +34,19 @@ Zotero.MIME = new function(){
// Magic numbers
var _snifferEntries = [
["%PDF-", "application/pdf"],
["%!PS-Adobe-", 'application/postscript'],
["%! PS-Adobe-", 'application/postscript'],
["From", 'text/plain'],
[">From", 'text/plain'],
["#!", 'text/plain'],
["<?xml", 'text/xml'],
["<!DOCTYPE html", 'text/html'],
["<html", 'text/html']
["%PDF-", "application/pdf", 0],
["%!PS-Adobe-", 'application/postscript', 0],
["%! PS-Adobe-", 'application/postscript', 0],
["From", 'text/plain', 0],
[">From", 'text/plain', 0],
["#!", 'text/plain', 0],
["<?xml", 'text/xml', 0],
["<!DOCTYPE html", 'text/html', 0],
["<html", 'text/html', 0],
["\uFFFD\uFFFD", 'image/jpeg', 0],
["JFIF", 'image/jpeg'],
["GIF8", 'image/gif', 0],
["\uFFFDPNG", 'image/png', 0]
];
var _textTypes = {
@ -116,7 +120,20 @@ Zotero.MIME = new function(){
*/
function sniffForMIMEType(str){
for (var i in _snifferEntries){
if (str.indexOf(_snifferEntries[i][0])==0){
var match = false;
// If an offset is defined, match only from there
if (typeof _snifferEntries[i][2] != 'undefined') {
if (str.substr(i[2]).indexOf(_snifferEntries[i][0]) == 0) {
match = true;
}
}
// Otherwise allow match anywhere in sample
// (128 bytes from getSample() by default)
else if (str.indexOf(_snifferEntries[i][0]) != -1) {
match = true;
}
if (match) {
return _snifferEntries[i][1];
}
}