au独自のデータのダウンロード仕様とサンプル。
#!/usr/bin/perl
$str = $ENV{'QUERY_STRING'};
@pairs = split(/&/,$str);
foreach $pair (@pairs){
($name,$value) = split(/=/,$pair);
$value =~ tr/+/ /;
$value =~ s/%(..)/pack("C",hex($1))/eg;
$cgi{$name} = $value;
}
$namex = $cgi{'name'};
$offsetx = $cgi{'offset'};
$countx = $cgi{'count'};
&fileDownload;
sub fileDownload{
if($offsetx >= 0 && $countx > 0){
open(FD, '<'."$namex");
binmode FD;
seek(FD, $offsetx, 0);
read(FD, $buf, $countx);
close FD;
# HEADER
print "Content-type: application/x-up-download" ,"\n";
print "Content-length: $countx", "\n";
print "\n";
print $buf;
}
#elsif($offsetx == 0 && $countx == 0){
#If &receipt was appended to the download request,
#the device will request a buffer of size count=0
#to indicate completion; so, return an "empty"
#download header
#
#print "Content-type: application/x-up-download", "\n";
#print "Content-length: 0", "\n";
#print "\n";
#}
elsif($offsetx == -1 && $countx == -1){
print "Content-type: text/x-hdml;charset=Shift_JIS\n\n";
print "<HDML VERSION=3.0 TTL=0>";
print "<DISPLAY>";
# print "<ACTION TYPE=ACCEPT TASK=GO DEST=sound.hdml LABEL=戻る>";
print "<ACTION TYPE=accept TASK=return LABEL=戻る>";
print "<IMG ICON=scroll>再生<BR>";
print "ダウンロード成功";
print "<BR>";
# print "<A TYPE=ACCEPT TASK=GOSUB DEST=sound.hdml LABEL=戻る>戻る</A>";
print "</DISPLAY>";
print "</HDML>";
}
elsif($offsetx == -1 && $countx == -2){
print "Content-type: text/x-hdml;charset=Shift_JIS\n\n";
print "<HDML VERSION=3.0 TTL=0>";
print "<DISPLAY>";
print "<ACTION TYPE=accept TASK=return LABEL=戻る>";
print "ダウンロード失敗";
print "<BR>";
# print "<A TYPE=ACCEPT TASK=GOSUB DEST=sound.hdml LABEL=戻る>戻る</A>";
print "</DISPLAY>";
print "</HDML>";
}
else{
print "Content-type: text/x-hdml;charset=Shift_JIS\n\n";
print "<HDML VERSION=3.0 TTL=0>";
print "<DISPLAY>";
print "<ACTION TYPE=accept TASK=return LABEL=戻る>";
print "ファイルが存在しません";
print "<BR>";
# print "<A TYPE=ACCEPT TASK=GOSUB DEST=sound.hdml LABEL=戻る>戻る</A>";
print "</DISPLAY>";
print "</HDML>";
}
}
String nameSt = null;
String offsetSt = null;
String countSt = null;
int offsetx = 0;
int countx = 0;
nameSt = request.getParameter("name");
offsetSt = request.getParameter("offset");
countSt = request.getParameter("count");
offsetx = Integer.parseInt(offsetSt);
countx = Integer.parseInt(countSt);
if(offsetx >= 0 && countx > 0){
try{
//ファイルがあるパスを指定する。
//ファイル名だけを受け取っても、ディレクトリ＋ファイル名を受け取ってもOK。
/*
String strBuff = "";
FileReader fr = new FileReader("/htdocs/data/"+nameSt);
char buf[] = new char[countx];
fr.skip(offsetx);
fr.read(buf, 0, buf.length);
strBuff = new String(buf);
fr.close();
*/
String strBuff = "";
String serverDir = "/htdocs/data/"+nameSt;
InputStream in = new FileInputStream(serverDir);
byte[] buf = new byte[countx];
in.skip(offsetx);
in.read(buf);
strBuff = new String(buf, "8859_1");
in.close();
response.setContentType("application/x-up-download");
response.setContentLength(countx);
out.print(strBuff);
}catch(Exception e){
System.out.println(e);
}
}else if(offsetx == 0 && countx == 0){
response.setContentType("application/x-up-download");
response.setContentLength(0);
//out.print("\n");
}else if(offsetx == -1 && countx == -1){
response.setContentType("text/x-hdml;charset=Shift_JIS");
out.println("<HDML VERSION=3.0 TTL=0>");
out.println("<DISPLAY>");
out.println("<ACTION TYPE=accept TASK=return LABEL=戻る>");
out.println("<IMG ICON=scroll>再生<BR>");
out.println("ダウンロード完了");
out.println("<BR>");
out.println("</DISPLAY>");
out.println("</HDML>");
}else if(offsetx == -1 && countx == -2){
response.setContentType("text/x-hdml;charset=Shift_JIS");
out.println("<HDML VERSION=3.0 TTL=0>");
out.println("<DISPLAY>");
out.println("<ACTION TYPE=accept TASK=return LABEL=戻る>");
out.println("ダウンロード失敗");
out.println("<BR>");
out.println("</DISPLAY>");
out.println("</HDML>");
}else{
response.setContentType("text/x-hdml;charset=Shift_JIS");
out.println("<HDML VERSION=3.0 TTL=0>");
out.println("<DISPLAY>");
out.println("<ACTION TYPE=accept TASK=return LABEL=戻る>");
out.println("ファイルが存在しません");
out.println("<BR>");
out.println("</DISPLAY>");
out.println("</HDML>");
}
