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package SL::FCGIFixes;
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use strict;
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use Encode;
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use FCGI;
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use version;
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# FCGI does not use Perl's I/O layer. Therefore it does not honor
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# setting STDOUT to ":utf8" with "binmode". Also FCGI starting with
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# 0.69 implements proper handling for UTF-8 flagged strings -- namely
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# by downgrading them into bytes. The combination of the two causes
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# kivitendo's way of handling strings to go belly up (storing
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# everything in Perl's internal encoding and using Perl's I/O layer
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# for automatic conversion on output).
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#
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# This workaround monkeypatches FCGI's print routine so that all of
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# its arguments safe for "$self" are encoded into UTF-8 before calling
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# FCGI's original PRINT function.
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#
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# However, this must not be done if raw I/O is requested -- e.g. when
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# sending out binary data. Fortunately that has been centralized via
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# Locale's "with_raw_io" function which sets a variable indicating
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# that current I/O operations should be raw.
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sub fix_print_and_internal_encoding_after_0_68 {
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return if version->new("$FCGI::VERSION")->numify <= version->new("0.68")->numify;
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my $encoder = Encode::find_encoding('UTF-8');
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my $original_fcgi_print = \&FCGI::Stream::PRINT;
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no warnings 'redefine';
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*FCGI::Stream::PRINT = sub {
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if (!$::locale || !$::locale->raw_io_active) {
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my $self = shift;
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my @vals = map { $encoder->encode("$_", Encode::FB_CROAK|Encode::LEAVE_SRC) } @_;
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@_ = ($self, @vals);
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}
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goto $original_fcgi_print;
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};
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}
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sub apply_fixes {
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fix_print_and_internal_encoding_after_0_68();
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}
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1;
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