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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