IE(HTTPS):从php文件生成pdf不起作用 [英] IE (HTTPS): generating pdf from php file doesn't work
问题描述
这是我的问题。我正在尝试调用页面:foo.php?docID = bar并将PDF返回到屏幕,该屏幕在数据库中存储为BLOB。
Here is my issue. I am trying to call a page: foo.php?docID=bar and return a PDF to the screen which is stored as a BLOB in the DB.
以下是我的代码中实际返回PDF的部分:
Here is the portion of my code which actually returns the PDF:
$docID = isset($_REQUEST['docID']) ? $_REQUEST['docID'] : null;
if ($docID == null){
die("Document ID was not given.");
}
$results = getDocumentResults($docID);
if (verifyUser($user, $results['ProductId'])){
header('Content-type: application/pdf');
// this is the BLOB data from the results.
print $results[1];
}
else{
die('You are not allowed to view this document.');
}
这在Firefox中完全正常。
This works perfectly fine in Firefox.
然而,在IE中,它根本不显示任何内容。如果我在另一个页面(即google.com),并输入网址进入此页面,它会说已经完成,但我仍会在屏幕上显示google.com。
However, in IE, it doesn't show anything at all. If i'm on another page (i.e. google.com), and I type in the URL to go to this page, it will say it's done, but I will still have google.com on my screen.
我检查了来自firefox和IE的响应的标头。它们完全相同。
I checked the headers for the responses from both firefox and IE. They are identical.
有没有人有任何建议?需要更多信息?
Does anyone have any suggestions? Need more information?
编辑:如果它有帮助,这里是响应标题和内容的第一行:
EDIT: If it helps at all, here's the response header and the first line of the content:
HTTP/1.1 200 OK
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 349930
Content-Type: application/pdf
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: PHP/5.1.2
Set-Cookie: PHPSESSID=cql3n3oc13crv3r46h2q04dvq4; path=/; domain=.example.com
Content-Disposition: inline; filename='downloadedFile.pdf'
X-Powered-By: ASP.NET
Date: Tue, 21 Apr 2009 16:35:59 GMT
%PDF-1.4
编辑:此外,提取pdf文件的页面实际上使用HTTPS而不是HTTP。
EDIT: Also, the page which pulls out the pdf file actually uses HTTPS instead of HTTP.
提前致谢,
~Zack
推荐答案
我弄清楚问题是什么。这是一个处理IE,HTTPS和插件的IE漏洞。 (参见此处)
I figured out what the issue was. It's an IE bug dealing with IE, HTTPS and addons. (See here)
这是一个缓存问题。当我设置:
It was a caching issue. When I set:
header("Cache-Control: max-age=1");
header("Pragma: public");
(参见这里),PDF在缓存中的时间足够长,以便adobe reader add-on能够抓住它。
(see here), the PDF was in cache long enough for the adobe reader add-on to grab it.
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