mirror of
https://github.com/tennc/webshell
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555 lines
12 KiB
Perl
555 lines
12 KiB
Perl
#!/usr/bin/perl
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######################################################
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# upload a file with netscape 2.0+ or IE 4.0+
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# Muhammad A Muquit
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# When: Long time ago
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# Changelog:
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# James Bee" <JamesBee@home.com> reported that from Windows filename
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# such as c:\foo\fille.x saves as c:\foo\file.x, Fixed, Jul-22-1999
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# Sep-30-2000, muquit@muquit.com
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# changed the separator in count.db to | from :
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# As in NT : can be a part of a file path, e.g. c:/foo/foo.txt
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######################################################
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#
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# $Revision: 5 $
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# $Author: Muquit $
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# $Date: 3/28/04 9:38p $
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#use strict;
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use CGI;
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# if you want to restrict upload a file size (in bytes), uncomment the
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# next line and change the number
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#$CGI::POST_MAX=50000;
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$|=1;
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my $version="V1.4";
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## vvvvvvvvvvvvvvvvvvv MODIFY vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
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# the text database of the user. The text database contains the |
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# separated items, namely login|encrypted password|upload path
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# example: muquit|fhy687kq1hger|/usr/local/web/upload/muquit
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# if no path is specified, the file must be located in the cgi-bin directory.
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#my $g_upload_db="upload.db";
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# overwrite the existing file or not. Default is to overwrite
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# chanage the value to 0 if you do not want to overwrite an existing file.
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my $g_overwrite=1;
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# if you want to restrict upload to files with certain extentions, change
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# the value of $g_restrict_by_ext=1 and ALSO modify the @g_allowed_ext if you
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# want to add other allowable extensions.
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my $g_restrict_by_ext=0;
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# case insensitive, so file with Jpeg JPEG GIF gif etc will be allowed
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my @g_allowed_ext=("jpeg","jpg","gif","png");
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## ^^^^^^^^^^^^^^^^^^^ MODIFY ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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#-------------- globals---------- STARTS ------------------
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my $query=new CGI;
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my $g_debug=0;
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my $g_title="File upload";
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my $g_upload_path='/tmp';
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#-------------- globals---------- ENDS ------------------
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print $query->header;
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# Java Script for form validation
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#
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my $JSCRIPT=<<EJS;
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var returnVal=true;
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var DEBUG=0;
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//===========================================================================
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// Purpose: check if field is blank or NULL
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// Params:
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// field (IN)
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// errorMsg (IN - MODIFIED)
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// fieldTitle (IN)
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// Returns:
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// errorMsg - error message
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// Globals:
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// sets global variable (returnVal) to FALSE if field is blank or NULL
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// Comments:
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// JavaScript code adapted from netscape software registration form.
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// ma_muquit\@fccc.edu, May-09-1997
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//===========================================================================
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function ValidateAllFields(obj)
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{
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returnVal = true;
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errorMsg = "The required field(s):\\n";
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// make sure all the fields have values
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if (isSomeFieldsEmpty(obj) == true)
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{
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// DISPLAY ERROR MSG
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displayErrorMsg();
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returnVal = false;
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}
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if (returnVal == true)
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document.forms[0].submit();
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else
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return (false);
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}
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//===========================================================================
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function displayErrorMsg()
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{
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errorMsg += "\\nhas not been completed.";
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alert(errorMsg);
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}
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//===========================================================================
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function isSomeFieldsEmpty(obj)
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{
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var
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returnVal3=false;
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// check if login is null
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# if (obj.userid.value == "" || obj.userid.value == null)
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# {
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# errorMsg += " " + "Userid" + "\\n";
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# returnVal3=true;
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# }
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// check if Password is null
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# if (obj.password.value == "" || obj.password.value == null)
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# {
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# errorMsg += " " + "Password" + "\\n";
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# returnVal3=true;
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# }
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// check if upload_file is null
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if (obj.upload_file.value == "" || obj.upload_file.value == null)
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{
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errorMsg += " " + "Upload filename" + "\\n";
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returnVal3=true;
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}
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return (returnVal3);
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}
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EJS
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;
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# print the HTML HEADER
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&printHTMLHeader;
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if ($query->path_info eq "/author" or $query->path_info eq "/about")
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{
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&printForm;
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&printAuthorInfo;
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return;
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}
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if ($query->param)
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{
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&doWork();
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}
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else
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{
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&printForm();
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}
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##-----
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# printForm() - print the HTML form
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##-----
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sub printForm
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{
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print "<center>\n";
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print "<table border=0 bgcolor=\"#c0c0c0\" cellpadding=5 cellspacing=0>\n";
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print $query->start_multipart_form,"\n";
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#------------- userid
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#print "<tr>\n";
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#print "<td align=\"right\">\n";
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#print "Userid:\n";
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#print "</td>\n";
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#print "<td>\n";
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#print $query->textfield(-name=>'userid',
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# -size=>20);
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#print "</td>\n";
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#print "</tr>\n";
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#------------- password
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#print "<tr>\n";
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#print "<td align=\"right\">\n";
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#print "Password:\n";
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#print "</td>\n";
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#print "<td>\n";
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#print $query->password_field(-name=>'password',
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# -size=>20);
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#print "</td>\n";
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#print "</tr>\n";
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#------------- upload
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print "<tr>\n";
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print "<td align=\"right\">\n";
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print "Upload file:\n";
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print "</td>\n";
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print "<td>\n";
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print $query->filefield(-name=>'upload_file',
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-size=>30,
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-maxlength=>80);
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print "</td>\n";
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print "</tr>\n";
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#------------- submit
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print "<tr>\n";
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print "<td colspan=2 align=\"center\">\n";
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print "<hr noshade size=1>\n";
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print $query->submit(-label=>'Upload',
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-value=>'Upload',
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-onClick=>"return ValidateAllFields(this.form)"),"\n";
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print "</td>\n";
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print "</tr>\n";
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print $query->endform,"\n";
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print "</table>\n";
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print "</center>\n";
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}
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##------
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# printHTMLHeader()
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##------
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sub printHTMLHeader
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{
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print $query->start_html(
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-title=>"$g_title",
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-script=>$JSCRIPT,
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-bgcolor=>"#ffffff",
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-link=>"#ffff00",
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-vlink=>"#00ffff",
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-alink=>"#ffff00",
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-text=>"#000000");
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}
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##-------
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# doWork() - upload file
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##-------
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sub doWork
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{
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##################
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my $em='';
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##################
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# import the paramets into a series of variables in 'q' namespace
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$query->import_names('q');
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# check if the necessary fields are empty or not
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#$em .= "<br>You must specify your Userid!<br>" if !$q::userid;
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#$em .= "You must specify your Password!<br>" if !$q::password;
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$em .= "You must select a file to upload!<br>" if !$q::upload_file;
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&printForm();
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if ($em)
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{
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&printError($em);
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return;
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}
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#if (&validateUser() == 0)
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#{
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# &printError("Will not upload! Could not validate Userid: $q::userid");
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# return;
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#}
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# if you want to restrict upload to files with certain extention
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if ($g_restrict_by_ext == 1)
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{
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my $file=$q::upload_file;
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my @ta=split('\.',$file);
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my $sz=scalar(@ta);
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if ($sz > 1)
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{
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my $ext=$ta[$sz-1];
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if (! grep(/$ext/i,@g_allowed_ext))
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{
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&printError("You are not allowed to upload this file");
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return;
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}
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}
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else
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{
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&printError("You are not allowed to upload this file");
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return;
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}
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}
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# now upload file
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&uploadFile();
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if ($g_debug == 1)
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{
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my @all=$query->param;
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my $name;
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foreach $name (@all)
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{
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print "$name ->", $query->param($name),"<br>\n";
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}
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}
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}
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##------
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# printError() - print error message
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##------
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sub printError
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{
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my $em=shift;
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print<<EOF;
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<center>
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<hr noshade size=1 width="80%">
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<table border=0 bgcolor="#000000" cellpadding=0 cellspacing=0>
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<tr>
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<td>
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<table border=0 width="100%" cellpadding=5 cellspacing=1>
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<tr">
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<td bgcolor="#ffefd5" width="100%">
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<font color="#ff0000"><b>Error -</b></font>
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$em</td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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</center>
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EOF
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;
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}
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##--
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# validate login name
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# returns 1, if validated successfully
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# 0 if validation fails due to password or non existence of login
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# name in text database
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##--
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sub validateUser
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{
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my $rc=0;
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my ($u,$p);
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#my $userid=$query->param('userid');
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#my $plain_pass=$query->param('password');
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# open the text database
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unless(open(PFD,$g_upload_db))
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{
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my $msg=<<EOF;
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Could not open user database: $g_upload_db
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<br>
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Reason: $!
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<br>
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Make sure that your web server has read permission to read it.
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EOF
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;
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&printError("$msg");
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return;
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}
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# first check if user exist
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$g_upload_path='';
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my $line='';
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while (<PFD>)
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{
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$line=$_;
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chomp($line);
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# get rid of CR
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$line =~ s/\r$//g;
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($u,$p,$g_upload_path)=split('\|',$line);
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#if ($userid eq $u)
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#{
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# $rc=1;
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# last;
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#}
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}
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close(PFD);
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if (crypt($plain_pass,$p) ne $p)
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{
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$rc=0;
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}
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return ($rc);
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}
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##--------
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# uploadFile()
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##--------
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sub uploadFile
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{
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my $bytes_read=0;
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my $size='';
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my $buff='';
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my $start_time;
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my $time_took;
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my $filepath='';
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my $filename='';
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my $write_file='';
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$filepath=$query->param('upload_file');
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# James Bee" <JamesBee@home.com> reported that from Windows filename
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# such as c:\foo\fille.x saves as c:\foo\file.x, so we've to get the
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# filename out of it
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# look at the last word, hold 1 or more chars before the end of the line
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# that doesn't include / or \, so it will take care of unix path as well
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# if it happens, muquit, Jul-22-1999
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if ($filepath =~ /([^\/\\]+)$/)
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{
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$filename="$1";
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}
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else
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{
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$filename="$filepath";
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}
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# if there's any space in the filename, get rid of them
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$filename =~ s/\s+//g;
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$write_file="$g_upload_path" . "/" . "$filename";
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&print_debug("Filename=$filename");
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&print_debug("Writefile= $write_file");
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if ($g_overwrite == 0)
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{
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if (-e $write_file)
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{
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&printError("File $filename exists, will not overwrite!");
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return;
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}
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}
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if (!open(WFD,">$write_file"))
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{
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my $msg=<<EOF;
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Could not create file: <code>$write_file</code>
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<br>
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It could be:
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<ol>
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<li>The upload directory: <code>\"$g_upload_path\"</code> does not have write permission for the
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web server.
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<li>The upload.db file has Control character at the end of line
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</ol>
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EOF
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;
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&printError("$msg");
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return;
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}
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$start_time=time();
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while ($bytes_read=read($filepath,$buff,2096))
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{
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$size += $bytes_read;
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binmode WFD;
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print WFD $buff;
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}
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&print_debug("size= $size");
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close(WFD);
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if ((stat $write_file)[7] <= 0)
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{
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unlink($write_file);
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&printError("Could not upload file: $filename");
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return;
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}
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else
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{
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$time_took=time()-$start_time;
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print<<EOF;
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<center>
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<hr noshade size=1 width="90%">
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<table border=0 bgcolor="#c0c0c0" cellpadding=0 cellspacing=0>
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<tr>
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<td>
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<table border=0 width="100%" cellpadding=10 cellspacing=2>
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<tr align="center">
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<td bgcolor="#000099" width="100%">
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<font color="#ffffff">
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File
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<font color="#00ffff"><b>$filename</b></font> of size
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<font color="#00ffff"><b>$size</b></font> bytes is
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uploaded successfully!
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</font>
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</td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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</center>
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EOF
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;
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}
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}
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sub printAuthorInfo
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{
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my $url="http://www.muquit.com/muquit/";
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my $upl_url="http://muquit.com/muquit/software/upload_pl/upload_pl.html";
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print<<EOF;
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<center>
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<hr noshade size=1 width="90%">
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<table border=0 bgcolor="#c0c0c0" cellpadding=0 cellspacing=0>
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<tr>
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<td>
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<table border=0 width="100%" cellpadding=10 cellspacing=2>
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<tr align="center">
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<td bgcolor="#000099" width="100%">
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<font color="#ffffff">
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<a href="$upl_url">
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upload.pl</a> $version by
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<a href="$url">Muhammad A Muquit</A>
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</font>
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</td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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</center>
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EOF
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;
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}
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sub print_debug
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{
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my $msg=shift;
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if ($g_debug)
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{
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print "<code>(debug) $msg</code><br>\n";
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}
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}
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