importFromURL fails when importing PDFs from servers that do not properly support HEAD requests

[simon]

PDF downloads from Oxford Journals currently download the PDF to the desktop instead of attaching it to an item (at least on my Mac), because Oxford Journals returns an improper HTTP HEAD response:

HEAD /cgi/reprint/19/6/635.pdf HTTP/1.0
Host: her.oxfordjournals.org

HTTP/1.1 200 OK
Date: Tue, 19 Dec 2006 23:55:17 GMT
Server: Apache/1.3.26 (Unix) DAV/1.0.3 ApacheJServ/1.1.2
Content-Length: 0
Last-Modified: Fri, 12 Nov 2004 22:22:50 GMT
Connection: close
Content-Type: text/html

Is there anything we can do about this?

[dstillman]

(In [1011]) Fixes #460, importFromURL fails when importing PDFs from servers that do not properly support HEAD requests

Override MIME type to application/pdf if extension is .pdf -- not all that robust, but it should work for most sites

[dstillman]

(In [1710]) Fixes #766, Zotero saves text/html URLs with .pdf extensions as PDFs
Addresses #460, importFromURL fails when importing PDFs from servers that do not properly support HEAD requests

Now inspects supposed PDFs after download and deletes if not actually PDF format

Also:

• Fixed bug when running importFromDocument() on a PDF on Windows that would result in an incomplete or missing (since r1688) attachment item
• importFromDocument() no longer returns an itemID, since it can be partly asynchronous now
• Added rudimentary 'text/html' support for Zotero.MIME.sniffForMIMEType()