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這Perl腳本上傳圖像到服務器,然後保存: - 適合在900x900像素 畫廊的形象 - 一個正方形的畫廊縮略圖140x140像素 - 在圖像和縮略圖名稱的js文件中添加一行內部服務器錯誤
問題是,該腳本有時有效,有時 - 不是。它每10次嘗試一次或兩次就能正常工作。當它不起作用時,它通常會返回「內部服務器錯誤」,並且不會創建兩個文件,也不會在js中添加一行。但在某些情況下,它會創建兩個jpg文件並且不會在js中添加一行(再次返回「內部服務器錯誤」)。非常奇怪的行爲 - 我嘗試了各種更改,但沒有結果。我做錯了什麼?
#!/usr/bin/perl -w
##
##
use strict;
use CGI;
use CGI::Carp qw (fatalsToBrowser);
use File::Basename;
use Image::Magick;
$CGI::POST_MAX = 1024 * 70000;
my $safe_filename_characters = "a-zA-Z0-9_.-";
my $pic_upload_dir="../data/photos/gallery";
my $lst_upload_dir="../data";
my $lst_file=$lst_upload_dir."/gallery.js";
my $query=new CGI;
my $PictureIndex=$query->param("Snd_AddPhoto_Idx");
my $photoname=$query->param("AddPhoto");
#upload photo
if (!$photoname) {
print "Content-Type: text/plain\n\n";
print "\n\nThere was a problem uploading your photo (try a smaller size).\n";
exit;
}
my ($phname, $phpath, $phextension) = fileparse ($photoname, qr/\.[^.]*/);
$photoname = $phname . $phextension;
$photoname =~ tr/ /_/;
$photoname =~ s/[^$safe_filename_characters]//g;
if ($photoname =~ /^([$safe_filename_characters]+)$/) {
$photoname = $1;
}
else {
die "Filename contains invalid characters";
}
# force correct filename for temporary file
$photoname="tempphoto_zmm_gallery_".$PictureIndex.$phextension;
my $upload_photohandle = $query->upload("AddPhoto");
open (UPLOADPHOTO, ">$pic_upload_dir/$photoname") or die "$!";
binmode UPLOADPHOTO;
while (<$upload_photohandle>) {
print UPLOADPHOTO;
}
close UPLOADPHOTO;
# resize photo
my($photoimage) = Image::Magick->new;
open(PHOTOIMAGE, "$pic_upload_dir/$photoname") or die "Unable to open temporary image file!\n";
$photoimage->Read(file=>\*PHOTOIMAGE);
close(PHOTOIMAGE);
$photoimage->Resize(geometry=>'900x900', blur=>0.8);
$photoimage->Set(Quality=>'75%');
# write ready photo as jpg
my $readyphotoname="pic".$PictureIndex.".jpg";
open(READYIMAGE, ">$pic_upload_dir/$readyphotoname") or die "Unable to write ready image file!\n";
$photoimage->Write(file=>\*READYIMAGE, filename=>$readyphotoname);
close(READYIMAGE);
system("chmod 777 $pic_upload_dir/$readyphotoname");
# resize thumbnail
my($thumbimage) = Image::Magick->new;
open(THUMBIMAGE, "$pic_upload_dir/$photoname") or die "Unable to open temporary image file!\n";
$thumbimage->Read(file=>\*THUMBIMAGE);
close(THUMBIMAGE);
$thumbimage->Resize(geometry=>'140x140^', blur=>0.8);
$thumbimage->Set(gravity=>'Center');
$thumbimage->Crop(geometry=>'140x140+0+0');
$thumbimage->Set(Quality=>'30%');
# write ready thumbnail as jpg
my $readythumbname="tbn".$PictureIndex.".jpg";
open(READYTHUMB, ">$pic_upload_dir/$readythumbname") or die "Unable to write ready image file!\n";
$thumbimage->Write(file=>\*READYTHUMB, filename=>$readythumbname);
close(READYTHUMB);
system("chmod 777 $pic_upload_dir/$readythumbname");
# delete temporary file
my($temporary_file)=$pic_upload_dir."/".$photoname;
unlink($temporary_file) == 0;
# add pic in js gallery list
# prepare new pic record
my $NewGalRecord="GalleryList.push(new Array(\"pic".$PictureIndex.".jpg\",\"tbn".$PictureIndex.".jpg\",\"\",\"\"));\n";
# add to file
open(JS,">>$lst_file") || die "Failed to open $lst_file\n";
printf JS $NewGalRecord;
close JS;
system("chmod 777 $lst_file");
# print confirmation
...
...
...
exit;
當上傳「大」只有圖像,沒有縮略圖(沒有「調整縮略圖」和「寫準備縮略圖爲jpg」部分)的腳本正常工作每次。 – byddles 2015-01-26 23:34:41
服務器日誌中報告了什麼? – emcconville 2015-01-27 00:18:45
@emcconville'code'admin_zmm_gallery_add.cgi:在/ home/zmm/public_html/cgi-bin/admin_zmm_gallery_add.cgi第108行void無效使用數字eq(==)。 'code'admin_zmm_gallery_add.cgi:Argument「 75%「在子程序條目中不是數字,在/home/zmm/public_html/cgi-bin/admin_zmm_gallery_add.cgi第78行,第6399行。 'code'admin_zmm_gallery_add.cgi:參數」30%「isn '在子例程條目中的數字位於/home/zmm/public_html/cgi-bin/admin_zmm_gallery_add.cgi第97行,第6399行。 'code'腳本標題的早期結束:admin_zmm_gallery_add.cgi –
byddles
2015-01-27 08:27:25