| 1 | package dolda.jsvc.util; |
| 2 | |
| 3 | import dolda.jsvc.*; |
| 4 | import java.io.*; |
| 5 | import java.util.*; |
| 6 | |
| 7 | public class StaticContent implements Responder { |
| 8 | private final Class<?> base; |
| 9 | private final String resname; |
| 10 | private final boolean dir; |
| 11 | private final String mimetype; |
| 12 | |
| 13 | public StaticContent(Class<?> base, String resname, boolean dir, String mimetype) { |
| 14 | this.base = base; |
| 15 | this.resname = resname; |
| 16 | this.dir = dir; |
| 17 | this.mimetype = mimetype; |
| 18 | } |
| 19 | |
| 20 | public StaticContent(String resname, boolean dir, String mimetype) { |
| 21 | this(null, resname, dir, mimetype); |
| 22 | } |
| 23 | |
| 24 | public void respond(Request req) { |
| 25 | String nm; |
| 26 | if(dir) { |
| 27 | nm = resname + "/" + req.path(); |
| 28 | } else { |
| 29 | nm = resname; |
| 30 | } |
| 31 | InputStream in; |
| 32 | if(base == null) { |
| 33 | in = StaticContent.class.getClassLoader().getResourceAsStream(nm); |
| 34 | } else { |
| 35 | in = base.getResourceAsStream(nm); |
| 36 | } |
| 37 | if(in == null) |
| 38 | throw(Restarts.stdresponse(404)); |
| 39 | String ims = req.inheaders().get("If-Modified-Since"); |
| 40 | Date mtime = new Date((req.ctx().starttime() / 1000) * 1000); |
| 41 | if(ims != null) { |
| 42 | Date d; |
| 43 | try { |
| 44 | d = Http.parsedate(ims); |
| 45 | } catch(java.text.ParseException e) { |
| 46 | throw(Restarts.stdresponse(400)); |
| 47 | } |
| 48 | if(mtime.compareTo(d) <= 0) { |
| 49 | req.status(304); |
| 50 | req.outheaders().put("Content-Length", "0"); |
| 51 | return; |
| 52 | } |
| 53 | } |
| 54 | try { |
| 55 | try { |
| 56 | req.outheaders().put("Content-Type", mimetype); |
| 57 | req.outheaders().put("Last-Modified", Http.fmtdate(mtime)); |
| 58 | Misc.cpstream(in, req.output()); |
| 59 | } finally { |
| 60 | in.close(); |
| 61 | } |
| 62 | } catch(IOException e) { |
| 63 | throw(new Error(e)); |
| 64 | } |
| 65 | } |
| 66 | } |