Details
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Type:
Bug
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 2.3.1
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Labels:
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Testing Instructions:
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Affected Branches:MOODLE_23_STABLE
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Fixed Branches:MOODLE_22_STABLE, MOODLE_23_STABLE, MOODLE_24_STABLE
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Pull from Repository:
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Pull Master Branch:
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Pull Master Diff URL:
Description
To reproduce:
- Make sure slasharguments is turned on.
- Create a question bank and populate it.
- Export the questions.
- Turn off slasharguments.
- Go back to the question bank.
- Export the questions.
The last step causes a stack trace:
Default exception handler: No valid arguments supplied or incorrect server configuration Debug:
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Error code: invalidargorconf
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* line 467 of /lib/setuplib.php: moodle_exception thrown
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* line 3422 of /lib/filelib.php: call to print_error()
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* line 38 of /pluginfile.php: call to file_pluginfile()
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This may be the same issue as MDL-33116.
Gliffy Diagrams
Activity
Michel, this seems to be more a Files problem than a Questions problem, so please can you triage it.
No worries. Thanks for bringing this to my attention, Tim.
Maybe the documentation is wrong, but the phpdocs for moodle_url::out() say
"If you use the returned URL in HTML code, you want the escaped ampersands. If you use the returned URL in HTTP headers, you want $escaped=false."
This patch will fix the issue, as far as i can see:
--- a/question/export.php
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+++ b/question/export.php
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@@ -73,7 +73,7 @@ if ($from_form = $export_form->get_data()) {
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echo get_string('yourfileshoulddownload', 'question', $export_url->out());
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echo $OUTPUT->box_end();
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- $PAGE->requires->js_function_call('document.location.replace', array($export_url->out()), false, 1);
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+ $PAGE->requires->js_function_call('document.location.replace', array($export_url->out(false)), false, 1);
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echo $OUTPUT->continue_button(new moodle_url('edit.php', $thispageurl->params()));
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echo $OUTPUT->footer();
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Thanks, I'll test it.
if this is all it takes, why isnt this closed ?
Brian, thank you for working that out! I guess the PHPdoc comment does not address the case of "if you are passing the URL to JavaScript ..." at all.
Are you familiar with the process to prepare a patch for integration, or shall I do it?
omer, Until Brian did the clever detective work to determine that is all that it would take, we did not know that. Comments like yours do not help get the bug fixed.
Tim,
You misunderstood me.
I'll write this again, to make it clear:
"
if this is all it takes, why isnt this closed ?
Am i missing something ?
"
Omer
I have now made a commit and submitted it for integration.
Integrated, thanks everyone.
Test passed on 2.2, 2.3 and 2.4. Thanks!
Many thanks for your effort, the whole Moodle Community will be enjoying your great solutions starting now!
Closing, ciao 
I don't believe the cause is the same as
MDL-33116.As far as I can see, the question code is doing the right thing. question_make_export_url in questionlib.php is calling moodle_url::make_file_url, but then pluginfile.php fails to handle that URL correctly.
Therefore, re-assigning to the File API component.