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Ñïèñîê ðàññûëêè íîâîñòåé

Ïîìèìî ãîñòåâîé êíèãè îñíîâíûì àòðèáóòîì ñåðüåçíîãî Web-óçëà ÿâëÿåòñÿ ñïèñîê ðàññûëêè íîâîñòåé. Perl-ïðîãðàììà äëÿ âûïîëíåíèÿ ðàññûëêè äîâîëüíî ïðîñòà, ïðè æåëàíèè åå ìîæíî íåñêîëüêî óëó÷øèòü, äîáàâèâ íîâûå âîçìîæíîñòè (ñì. ëèñòèíã 9).

Ïðè ñîçäàíèè Web-óçëà, îðèåíòèðîâàííîãî êàê íà ðóññêîÿçû÷íûõ, òàê è íà àíãëîÿçû÷íûõ ïîñåòèòåëåé, â ïðîãðàììå ïðåäóñìîòðåíà âîçìîæíîñòü âûäà÷è ñîîáùåíèé â ñîîòâåòñòâóþùåì âèäå. Îñíîâíàÿ ôîðìà (ðèñ. 3) â çàâèñèìîñòè îò ÿçûêà óçëà äîëæíà îáÿçàòåëüíî ñîäåðæàòü ïîëå:

<input type=»hidden» name=»lang» value=”english”> 

èëè

<input type=”hidden” name=”lang” value=”russian”>

äëÿ ðàñïîçíàâàíèÿ ÿçûêà âûäà÷è ñîîáùåíèé.

×òîáû îáëåã÷èòü ðàçáîð ïðîãðàììû ðàññûëêè íîâîñòåé, â íåé ðàññòàâëåíû êîììåíòàðèè.

Ëèñòèíã 9. Ñïèñîê ðàññûëêè íîâîñòåé

#!/usr/local/bin/perl
############################
# SCRIPT: POSTER.CGI       #
# (c) Michael Yevdokimov   #
############################

require ‘cgi_lib.pl’;

$PathList=”../mlist”; #ôèçè÷åñêèé ïóòü ê êàòàëîãó ñ áàçîé ïîñåòèòåëåé
$PathNews=”../mnews”; #ôèçè÷åñêèé ïóòü ê êàòàëîãó ñ äîêóìåíòîì äëÿ ïîñûëêè
$ReturnPage=”index.html” #ñòðàíèöà, ê êîòîðîé íóæíî áóäåò âîçâðàòèòüñÿ

$mail_prog=”/usr/sbin/sendmail”; #ôèçè÷åñêèé àäðåñ ê ïî÷òîâîé ïðîãðàììå
$Title=”News List”; #çàãîëîâîê ñïèñêà ðàññûëêè
$From=”maillist\@mysite.ru”; #àäðåñ ñïèñêà ðàññûëêè
$Website=”www.mysite.ru”; #èñòî÷íèê ñïèñêà ðàññûëêè äëÿ Subject
# Method Detection and Decoding
&Parse_Data;  # äåêîäèðîâàòü äàííûå èç ôîðìû / URL

$Lang=$CGI{‘lang’};  # òèï ÿçûêà (Ðóñ/Àíãë) 
$User=$CGI{‘user_name’}; # èìÿ ïîñåòèòåëÿ
$Email=$CGI{‘user_email’}; # email ïîñåòèòåëÿ
$Flag=$CGI{‘flag’}; # ôëàã äëÿ ïðîâåðêè íåêîòîðûõ óñëîâèé â ïðîãðàììå
$Command=$CGI{‘command’}; # ñ÷èòàòü êîìàíäó (send èëè ‘’)

if ($Lang eq ‘english’) {
	$db=”userbase.eng”; # áàçà ñ èíîñòðàííûìè ïîäïèñ÷èêàìè
        $nf=”news.eng” # àíãëèéñêàÿ ”ïîñûëêà” (îáû÷íûé TXT)
} else {
        if ($Lang eq ‘russian’) {
        	$db=”userbase.rus”; ” ñ ðîññèéñêèìè ïîäïèñ÷èêàìè
		$nf=”news.rus”; ðóññêàÿ ”ïîñûëêà” (îáû÷íûé TXT)
        } else {
		&Print_Head; # àíàëîãè÷íî print ”Content-type:text/html\n\n”;
		print ”<H3>ATTENTION! ERROR OCCURED!<H3>\n”;
		print ”PRESS <A HREF=\”$ENV{‘HTTP_REFERER’}\”>[BACK]</A> TO RETURN!\n”;
		exit(0);                       
        }
}

if ($Command eq ‘send’) { # ïðîâåðêà òîé ñàìîé êîìàíäû
 	if ($db eq ‘userbase.eng’) {
		#Post English News
		&Post_News($User,$Email);
	} else {
		#Post Russian News
		&Post_News($User,$Email);
	}	
}

#Ïðîâåðèòü çíà÷åíèå àòðèáóòà flag
if ($Flag eq ‘eng_yes’) { # åñëè èíôîðìàöèÿ âåðíà
	&Check_Email; # âûçâàòü ïîäïðîãðàììó ïðîâåðêè ââåäåííîãî email
	&Add_Record($Path,$db); # äîáàâèòü çàïèñü â ñîîòâåò. áàçó
	&Print_Head; 
	print ”Your records were added to database

\n”; print ”Click <a href=\”/$ReturnPage\”>here</a> to return...\n”; exit(0); } else { if ($Flag eq ‘rus_yes’) { &Check_Email; &Add_Record; &Print_Head; print ”Âàøè äàííûå çàíåñåíû â áàçó äàííûõ

\n”; print ”Íàæìèòå <a href=\”/$ReturnPage\”>çäåñü</a> äëÿ âîçâðàòà...\n”; exit(0); } else { } } # âûâåñòè ôîðìó ïîäòâåðæäåíèÿ ïðàâèëüíîñòè ââåäåííîé èíôîðìàöèè if ($db eq ‘userbase.eng’) { #Àíãëèéñêèé âàðèàíò ôîðìû &Print_Head; print ”<H2><b>News List Registration</b></H2>\n”; print ”<PRE>\n”; print ”<FORM METHOD=\”GET\” ACTION=\”/cgi-bin/poster.cgi\”>\n”; print ”<input type=hidden name=lang value=english><br>\n”; print ” Your Name: <input type=text name=user_name size=15 value=\”$User\”><br>\n”; print ”Your Email: <input type=text name=user_email size=15 value=\”$Email\”><br>\n”; # äîáàâëÿåì â ôîðìó ñêðûòîå ïîëå flag, çíà÷åíèå êîòîðîãî ïðîâåðÿåòñÿ # ýòîé ïðîãðàììîé: åñëè flag ðàâåí îäíîìó èç äâóõ óêàçàííûõ çäåñü # çíà÷åíèé, òî âûïîëíÿåòñÿ ïîäïðîãðàììà äîáàâëåíèÿ ïîëüçîâàòåëÿ â ÁÄ print ”<input type=hidden name=flag value=eng_yes><br>\n”; print ”<input type=submit value=\” Correct \”> ”; print ”<input type=reset value=\” Incorrect \”><br>\n”; print ”</FORM>\n”; print ”</PRE>\n”; } else { #Ðóññêèé âàðèàíò ôîðìû &Print_Head; print ”<H2><b>Ðåãèñòðàöèÿ â ñïèñêå ðàññûëêè íîâîñòåé</b> </H2>\n”; print ”<PRE>\n”; print ”<FORM METHOD=\”GET\” ACTION=\”/cgi-bin/poster.cgi\”>\n”; print ”<input type=hidden name=lang value=russian><br>\n”; print ” Âàøå èìÿ: <input type=text name=user_name size=15 value=\”$User\”><br>\n”; print ”Âàø Email: <input type=text name=user_email size=15 value=\”$Email\”><br>\n”; # äîáàâëÿåì ñêðûòîå ïîëå flag (ñì. îïèñàíèå âûøå) print ”<input type=hidden name=flag value=rus_yes><br>\n”; print ”<input type=submit value=\”Âñå ïðàâèëüíî\”> ”; print ”<input type=reset value=\”Íåïðàâèëüíî\”><br>\n”; print ”</FORM>\n”; print ”</PRE>\n”; } sub Add_Record { # ïîäïðîãðàììà çàïèñè ïîñåòèòåëåé â ÁÄ open (UB, ”>>$PathList/$db”) || die (”Error during adding a record $!”); print UB join (”::”, ”$User”, ”$Email”), ”\n”; close (UB); } sub Post_News { # ïîäïðîãðàììà ðàññûëêè íîâîñòåé #Îòêðûòü UB - áàçó ïîëüçîâàòåëåé open (UB, ”$PathList/$db”) || die (”Error during reading file $!”); while (<UB>) { $line=$_; ($User, $Email) = split (/::/, $line); #Íàïðàâèòü âûâîä íà ”email” open (MAIL, ”|$mail_prog $Email”); print MAIL ”From: $From\n”; print MAIL ”Reply-to: $From\n”; print MAIL ”Subject: $Title from $Website\n”; print MAIL ”\n\n”; print MAIL ”Dear $User,\n\n”; #Îòêðûâàåì ôàéë íîâîñòåé è ñ÷èòûâàåì èç íåãî äàííûå open (NF, ”$PathNews/$nf”) || die (”Error during reading file $!”); while (<NF>) { print MAIL ”$_”; # íàïðàâëÿåì ñ÷èòàííûå äàííûå íà email } close (NF); # print MAIL ”\n\nThis script was created by Michael Yevdokimov\n”; print MAIL ”Developer’s website: http://www.basicnet.sonnet.ru\n”; print MAIL ”\n\n”; close (MAIL); } close (UB); &Print_Head; print ”PRESS <A HREF=\”/$ReturnPage\”>[BACK]</A> TO RETURN!\n”; exit(0); } sub Check_Email { # ïîäïðîãðàììà ïðîâåðêè ïðàâèëüíîñòè ââåäåííîãî email &Err_Msg; if ($Email !~ /.+\@.+\..+/) { &Print_Head; &Err_Msg; print ”$ErrMsg\n”; #print ”Location: $ENV{‘HTTP_REFERER’}\n\n”; exit(0); } #exit(0); } sub Err_Msg { # ôóíêöèÿ âûâîäà ñîîáùåíèÿ îá îøèáêå â email if ($Lang eq ‘english’) { $ErrMsg=”<B>ATTENTION! ERROR OCCURED!</B><P>\n <I>Email: <B>$Email</B> which you have entered is incorrect!</I><P>\n <B>PRESS [BACK] TO RETURN<B>\n”; return $ErrMsg; } else { $ErrMsg=”<B>ÂÍÈÌÀÍÈÅ! ÂÎÇÍÈÊËÀ ÎØÈÁÊÀ!</B><P>\n <I>Email: <B>$Email</B>, êîòîðûé âû ââåëè íåïðàâèëåí!</I><P>\n <B>ÍÀÆÌÈÒÅ [BACK] ÄËß ÂÎÇÂÐÀÒÀ</B>\n”; return $ErrMsg; } }

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