Recently wikindx does not open my attached pfs any more. No matter whether I open them in the browser or download them first, I get an error message.
However, when I download the files (hashfilename) from the attachements folder via ftp the files open without problems, if I correctly use binary as transfer mode. Using ascii as transfer mode gives the same error message.
I do not know exactly when this started, nor whether it has always affected the same pdfs. I have a slight feeling, that only pdfs with version 1.6 and higher are affected, not the pdfs with version 1.4, but I am not exactly sure about this. I have only tested this hypothesis for a very small number of files. Could this be?
My webhoster might have update the php and mysql versions in between. I do not know, if this is correlated with the problem. I am currently using php version 5.2.14.
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For what it's worth, I can confirm that 3.8.2 only works with PDF version 1.6 and below. I ran into this problem myself some time ago, and after some experimenting I got this and converted all my attachments to lower PDF versions to avoid those problems.
Joachim
Last edit: Joachim 2013-03-02
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Hi, this may or may not be related, but I noticed that pdfs sometimes have different attachment types in the database. Sometimes (usually) it is application/pdf, sometimes it's application/x-pdf and occasionally even application/unknown.
It might be possible that files with application/unknown are not recognized as pdf by the browser. Or that they are transferred in a different way (you mention ascii/binary).
What determines the file type? When I run "file --mime-type *" in the attachment folder, I get all application/pdf.
Anyway, it might be worth checking what file type is recorded in the DB.
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It might be possible that files with application/unknown are not recognized as pdf by the browser. Or that they are transferred in a different way (you mention ascii/binary).
I didn't check the file types back then, but all the PDFs with versions higher than 1.6 couldn't be downloaded or displayed in the browser, until I converted them to 1.4 in Acrobat.
I can test with 4.2.0 if this is still an issue.
Best
Joachim
--
Dr. Joachim Trinkwitz E-Mail: jtr@uni-bonn.de
Institut für Germanistik, Tel.: 0228-737565
Vergleichende Literatur- www.germanistik.uni-bonn.de
und Kulturwissenschaft www.comicforschung.uni-bonn.de
der Universität Bonn 53012 Bonn
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I just uploaded a 1.6 MB test PDF v. 1.7 in both wikindx3 and wikindx4. The further doesn't display in the browser, the second does. File type is in both databases application/pdf.
Recently wikindx does not open my attached pfs any more. No matter whether I open them in the browser or download them first, I get an error message.
However, when I download the files (hashfilename) from the attachements folder via ftp the files open without problems, if I correctly use binary as transfer mode. Using ascii as transfer mode gives the same error message.
I do not know exactly when this started, nor whether it has always affected the same pdfs. I have a slight feeling, that only pdfs with version 1.6 and higher are affected, not the pdfs with version 1.4, but I am not exactly sure about this. I have only tested this hypothesis for a very small number of files. Could this be?
My webhoster might have update the php and mysql versions in between. I do not know, if this is correlated with the problem. I am currently using php version 5.2.14.
For what it's worth, I can confirm that 3.8.2 only works with PDF version 1.6 and below. I ran into this problem myself some time ago, and after some experimenting I got this and converted all my attachments to lower PDF versions to avoid those problems.
Joachim
Last edit: Joachim 2013-03-02
Interesting. I can't think of anything I've changed in v4.1 in the file download and open code.
Anyway, it appears to work in this version.
Regards,
Mark
Hi Geoemyda (long time no see),
Clearly you can't upgrade to wikindx v4.1 as it requires at least PHP5.3. Which version of wikindx are you using?
Mark
Hello Mark,
your response time is awesome! Thank you!
I am still using v3.8.2 - I didn't realize version 4.1 is already there.
Then I think I should update wikindx first (I can switch to php 5.3.8) and hope that this solves my problem. If not I will write here again!
I'd certainly try that first.
You will also need to ensure MySQL is up to date. . .
Then let us know. . .
Mark
Hello Mark,
it worked :-) However, I have another problem with my second database, but I will start a new topic.
Thanks for the feedback.
Hi, this may or may not be related, but I noticed that pdfs sometimes have different attachment types in the database. Sometimes (usually) it is application/pdf, sometimes it's application/x-pdf and occasionally even application/unknown.
It might be possible that files with application/unknown are not recognized as pdf by the browser. Or that they are transferred in a different way (you mention ascii/binary).
What determines the file type? When I run "file --mime-type *" in the attachment folder, I get all application/pdf.
Anyway, it might be worth checking what file type is recorded in the DB.
Am 02.03.2013 um 09:55 schrieb Stephan Matthiesen smatthie@users.sf.net:
I didn't check the file types back then, but all the PDFs with versions higher than 1.6 couldn't be downloaded or displayed in the browser, until I converted them to 1.4 in Acrobat.
I can test with 4.2.0 if this is still an issue.
Best
Joachim
--
Dr. Joachim Trinkwitz E-Mail: jtr@uni-bonn.de
Institut für Germanistik, Tel.: 0228-737565
Vergleichende Literatur- www.germanistik.uni-bonn.de
und Kulturwissenschaft www.comicforschung.uni-bonn.de
der Universität Bonn 53012 Bonn
In SVN, I've added a more accurate mime-type discovery when uploading attachments.
Mark
I just uploaded a 1.6 MB test PDF v. 1.7 in both wikindx3 and wikindx4. The further doesn't display in the browser, the second does. File type is in both databases application/pdf.
You can go and test it yourself:
3.8.2: http://www.comicforschung.uni-bonn.de/index.php?action=resourceView&id=2469&access=1
4.2.0 (svn r881): http://webbel.germanistik.uni-bonn.de/wikindx4/index.php?action=resource_RESOURCEVIEW_CORE&id=2469
I got the idea this has something to do with the PHP version?
Joachim
It might well be. I'm not sure how to track it down. v4.x requires PHP 5.3 and greater so perhaps the fix is already there.
Mark