Zend/PHP:向 MySQL 的 BLOB 字段上传/下载文件时出现问题
我正在上传文件(现在是pdf),如下所示:(它正在上传mysql的blob字段中的文件内容)
$organizationModel = new Model_Organization_Object( organizationId );
$myFile = file_get_contents( '../path/to/my/file/filename.ext' );
$organizationModel->setOrganizationProfile( $myFile );
$organizationModel->save();
现在我想从数据库获取该文件并想要下载。我在控制器的操作中执行此操作:(我在这里查看 pdf 文件,因此它在下面进行硬编码。但将来我想从 blob 字段下载任何文件)
$organizationModel = new Model_Organization_Object( $organizationId );
$content = $organizationModel->getOrganizationProfile();
header('Content-Type: application/octet-stream');
header("Content-Length: " . strlen($content) );
header('Content-Disposition: attachment; filename=orgProfile.pdf');
$this->view->organizationProfile = $content;
现在在视图文件中我正在执行此操作:
echo $this->organizationProfile;
但上面下载过程打印(回显) firbug 中的文件内容,并且不下载原始格式的文件。我在 firebug 中的回显输出如下:
%PDF-1.3
%����
84 0 obj
<<
/Linearized 1
/O 86
/H [ 541 212 ]
/L 958398
/E 11238
/N 27
/T 956600
>>
endobj
xref
84 7
0000000016 00000 n
0000000486 00000 n
0000000753 00000 n
0000000982 00000 n
0000001102 00000 n
0000000541 00000 n
0000000732 00000 n
trailer
<<
/Size 91
/Info 83 0 R
/Root 85 0 R
/Prev 956590
/ID[<0a8d7035bf08791da591e8cae39b8c49><0a8d7035bf08791da591e8cae39b8c49>]
>>
startxref
0
%%EOF
85 0 obj
<<
/Type /Catalog
/Pages 82 0 R
>>
endobj
89 0 obj
<< /S 151 /Filter /FlateDecode /Length 90 0 R >>
stream
H�b```f``�e`b`�f`@\0�.����\\I~aV$�Xƈ�dǪ����bA�Az�lv1o#�{-����1+�ʪG�����N`�b�
>�-��
\0\0D40
endstream
endobj
90 0 obj
106
endobj
86 0 obj
<<
/Type /Page
/Contents 87 0 R
/Parent 79 0 R
/Resources << /XObject << /img0 88 0 R >> /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] >>
/MediaBox [ 0 0 612 792 ]
/CropBox [ 0 0 612 792 ]
/Rotate 0
>>
endobj�@.\0���
endstream
endobj
88 0 obj
<< /Filter /FlateDecode \0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0\0\0\\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0|n�FT*,�
��
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}����r�)V��
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�}Z�1����c�(0�q�_1��7�%���G7U/��h9I������S�Q��4nc�Lq��H6��;�꺒c(/O��2�٫�-�*_����%�I؏/?�I�o����ô�k��<����q��\'��]v�\"��+�˗ݯ�,��ɏ�qxgk�\\\\�6���7��Y���.G��ҽY��8��.��*���M_��J�hu1����z��W�o_��F�/���s�:�Y~��>0�g\\E�l�K5e���&L�/����k$����{ں:\\>�̥Fs?-��l�>c�亪o���Λ�9�V+�2;��}q�4
�zS�|u�A`dK���n~�sΛ��K�hiY�j��#p���S�M\\���0P2䗶\\*�m+?L5Er����[W�>9|�̑�iY�u�j�M�_���n&��7O�f��s��z`.`�,W��#�l��n���s�՛\'�����=��&#�z�M7_����s���x��y�
��u�p�G���0ͨe�G���۸8]{�䓷N�1}��}~Q�[)�XF��_��*? p7iQ����M�(�l�����������f��6����*��Ų;@~\\k�i��w_��*�#�Ւ�^�j�\\�L��/�}�Y�[��V��t~�w�n��a���m�O�(.�n;��ji:��W�ZnQ[9�n=�^��sE9��;�.��u3\"ږ��<�Ļ��y8�<H���g��u��\\�q��Ȥ71p�U��}ם��f`�Y��m3b*C�t{�SX��7m<��6��8K��[Qs��&_��(M��:�Z���W��Հ��W寚
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]
firebug 中的响应标头:
Date Thu, 15 Apr 2010 06:21:03 GMT
Server Apache/2.2.11 (Ubuntu) PHP/5.2.6-3ubuntu4.2 with Suhosin-Patch
X-Powered-By PHP/5.2.6-3ubuntu4.2
Expires Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache
Content-Length 65535
Content-Disposition attachment; filename=evidence.pdf
Keep-Alive timeout=15, max=71
Connection Keep-Alive
Content-Type application/octet-stream
有人可以帮助说明如何下载文件,或者我在上传过程中做错了什么。 setOrganizationProfile() 和 getOrganizationProfile() 函数由我们的团队创建,在向数据库存储数据/从数据库获取数据时运行良好。
谢谢
I am uploading file(pdf for now) like this: (It is uploading content of file in blob field of mysql)
$organizationModel = new Model_Organization_Object( organizationId );
$myFile = file_get_contents( '../path/to/my/file/filename.ext' );
$organizationModel->setOrganizationProfile( $myFile );
$organizationModel->save();
Now I want to get that file from database and want to download. I doing this in controller's action: (I am aspecting pdf file here therefore it is hardcoded below. But in future I want to download any file from blob field)
$organizationModel = new Model_Organization_Object( $organizationId );
$content = $organizationModel->getOrganizationProfile();
header('Content-Type: application/octet-stream');
header("Content-Length: " . strlen($content) );
header('Content-Disposition: attachment; filename=orgProfile.pdf');
$this->view->organizationProfile = $content;
Now in view file I am doing this:
echo $this->organizationProfile;
But above download process print(echo) the content of file in firbug and does not download file in orignal format. My echo output in firebug is like this:
%PDF-1.3
%����
84 0 obj
<<
/Linearized 1
/O 86
/H [ 541 212 ]
/L 958398
/E 11238
/N 27
/T 956600
>>
endobj
xref
84 7
0000000016 00000 n
0000000486 00000 n
0000000753 00000 n
0000000982 00000 n
0000001102 00000 n
0000000541 00000 n
0000000732 00000 n
trailer
<<
/Size 91
/Info 83 0 R
/Root 85 0 R
/Prev 956590
/ID[<0a8d7035bf08791da591e8cae39b8c49><0a8d7035bf08791da591e8cae39b8c49>]
>>
startxref
0
%%EOF
85 0 obj
<<
/Type /Catalog
/Pages 82 0 R
>>
endobj
89 0 obj
<< /S 151 /Filter /FlateDecode /Length 90 0 R >>
stream
H�b```f``�e`b`�f`@\0�.����\\I~aV$�Xƈ�dǪ����bA�Az�lv1o#�{-����1+�ʪG�����N`�b�
>�-��
\0\0D40
endstream
endobj
90 0 obj
106
endobj
86 0 obj
<<
/Type /Page
/Contents 87 0 R
/Parent 79 0 R
/Resources << /XObject << /img0 88 0 R >> /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] >>
/MediaBox [ 0 0 612 792 ]
/CropBox [ 0 0 612 792 ]
/Rotate 0
>>
endobj�@.\0���
endstream
endobj
88 0 obj
<< /Filter /FlateDecode \0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0\0\0\\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\
\0\0\0\0\0\0\0\0|n�FT*,�
��
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}����r�)V��
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�}Z�1����c�(0�q�_1��7�%���G7U/��h9I������S�Q��4nc�Lq��H6��;�꺒c(/O��2�٫�-�*_����%�I؏/?�I�o����ô�k��<����q��\'��]v�\"��+�˗ݯ�,��ɏ�qxgk�\\\\�6���7��Y���.G��ҽY��8��.��*���M_��J�hu1����z��W�o_��F�/���s�:�Y~��>0�g\\E�l�K5e���&L�/����k$����{ں:\\>�̥Fs?-��l�>c�亪o���Λ�9�V+�2;��}q�4
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]
reponse headers in firebug:
Date Thu, 15 Apr 2010 06:21:03 GMT
Server Apache/2.2.11 (Ubuntu) PHP/5.2.6-3ubuntu4.2 with Suhosin-Patch
X-Powered-By PHP/5.2.6-3ubuntu4.2
Expires Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache
Content-Length 65535
Content-Disposition attachment; filename=evidence.pdf
Keep-Alive timeout=15, max=71
Connection Keep-Alive
Content-Type application/octet-stream
Can someone help that how to download file or I am doing something wrong with uploading process. setOrganizationProfile() and getOrganizationProfile() function are created by our team which are working fine while storing/getting data to/from database.
Thanks
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评论(2)
好吧,我认为你的问题是你正在使用 AJAX 来下载文件。
无法以正常方式使用 AJAX(或更确切地说 - JS)下载文件。你知道,漏洞利用的漏洞太大了(我认为是这样)——无论如何,不存在这种可能性。
不过也有解决方法。其中之一是在页面上动态创建隐藏的 iframe,然后将其位置更改为下载脚本。那么你就不再使用 JS 来下载,而是使用普通的浏览器功能。
本页描述了另一种方法:
http://www.filamentgroup.com/lab/jquery_plugin_for_requesting_ajax_like_file_downloads/< /a>
也许这会对你有所帮助。
Ok, I think your problem is that you're using AJAX to download file.
It's not possible to download file using AJAX (or rather - JS) in a normal way. You know, there's too big hole for exploits to allow that (I think so) - anyway there's no such possibility.
There are workarounds though. One of them is creating hidden iframe dynamically on the page and then changing its location to your download script. Then you're not using JS to download, but plain browser capabilities.
Another way is described on this page:
http://www.filamentgroup.com/lab/jquery_plugin_for_requesting_ajax_like_file_downloads/
Mybe it'll be a help for you.
您希望内容类型为 application/pdf 而不是 application/octet-stream。这将渲染 pdf 文件而不是显示它的“源”。
干杯
You want the Content-type to be application/pdf not application/octet-stream. That will render the pdf file rather than display the 'source' of it.
Cheers