Mercurial > MadButterfly

annotate nodejs/examples/mce/epg.js @ 1409:b8ba20b8f91a

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Call onInitDOne when all pictures are loaded.
author wycc
date Wed, 06 Apr 2011 07:52:13 +0800
parents 9f3f20c4a4fb
children 9bd8e814f730
rev   line source
932
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
parents:
diff changeset
1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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diff changeset
2 // vim: sw=4:ts=8:sts=4
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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3 var http = require('http');
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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4 var URL = require('url');
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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5 var sys = require("sys");
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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6 var fs = require("fs");
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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7 var os = require("child_process");
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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8 function EPG()
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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9 {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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10 var epgsrv = http.createClient(8080, '211.23.50.144');
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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11 var cmd = '{"Protocol":"EPG-CSP","Command":"SearchRequest","ProgramCat":"MainCat"}';
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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12 var headers={
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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13 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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14 'Host':'211.23.50.144:8080',
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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15 'User-Agent':'MadButterfly',
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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16 'Content-Type':'application/x-www-form-urlencoded'
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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17 };
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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18 headers['Content-Length'] = cmd.length;
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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19 var request = epgsrv.request('POST', '/IPTV_EPG/EPGService.do?timestamp='+new Date().getTime(),headers);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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20 var self = this;
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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21 sys.puts("aaaa");
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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22 var js = '';
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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23 request.write(cmd);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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24 request.end();
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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25 request.on('response', function(res) {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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26 sys.puts("connected");
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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27 res.on('data',function (data) {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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28 js = js + data;
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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29 });
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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30 res.on('end', function () {
1122
3d438daea48c Add the handler for the next page
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31 try {
3d438daea48c Add the handler for the next page
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32 res = JSON.parse(js);
3d438daea48c Add the handler for the next page
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33 } catch(e) {
3d438daea48c Add the handler for the next page
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34 sys.puts(e);
3d438daea48c Add the handler for the next page
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35 sys.puts(js);
3d438daea48c Add the handler for the next page
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36 }
932
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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37 sys.puts("parsed");
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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38 self.onLoad(res);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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39
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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40 });
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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41 });
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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42 }
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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43
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
parents:
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44
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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45 /**
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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46 * Check if the file has been cached. Create a symbolic to link if it is cached already.
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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47 *
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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48 */
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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49 function isCached(cachepath,file,obj) {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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50 var fields = cachepath.split('.');
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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51 try {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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52 var ext = fields.pop();
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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53 var pngfile = cachepath;
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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54 sys.puts("ext="+ext);
1386
9f3f20c4a4fb Use jpg instead of PNG.
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diff changeset
55 //if (ext != 'png') {
9f3f20c4a4fb Use jpg instead of PNG.
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56 // fields.push('png');
9f3f20c4a4fb Use jpg instead of PNG.
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57 // pngfile = fields.join('.');
9f3f20c4a4fb Use jpg instead of PNG.
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58 //}
932
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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59 var st = fs.statSync(pngfile);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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diff changeset
60 try {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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61 fs.unlinkSync(file);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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62 } catch(e) {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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63 }
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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64 fs.linkSync(pngfile, file);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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65 obj.pend = obj.pend - 1;
1386
9f3f20c4a4fb Use jpg instead of PNG.
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diff changeset
66 try {
9f3f20c4a4fb Use jpg instead of PNG.
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67 if (obj.pend == 0) {
9f3f20c4a4fb Use jpg instead of PNG.
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68 obj.onInitDone();
9f3f20c4a4fb Use jpg instead of PNG.
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69 }
9f3f20c4a4fb Use jpg instead of PNG.
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70 } catch(e) {
9f3f20c4a4fb Use jpg instead of PNG.
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71 sys.puts(e);
9f3f20c4a4fb Use jpg instead of PNG.
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72 }
932
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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73 return 1;
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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74 } catch(e) {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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75 sys.puts(e);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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76 }
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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77 return 0;
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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78 }
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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79
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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80 /**
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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81 * Implement the mkdir -p to create the directory
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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82 */
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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83 function CreateDirectory(cachepath)
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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84 {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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85 var fields = cachepath.split('/');
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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86 var p='';
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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87 for(i=0;i<fields.length-1;i++) {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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88 p = p + fields[i]+'/';
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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89 try {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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90 fs.mkdirSync(p,0777);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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91 } catch(e) {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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92 }
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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93 }
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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94 }
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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95 /*
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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96 * We will check the cache directory. If the file is available, we will create a symbolic link only. Otherwise,
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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97 * we will fetch it before create the symbolic link.
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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98 */
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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99 function httpGetFile(url,file,obj)
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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100 {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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101 sys.puts("fetch "+ file);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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102 var u = URL.parse(url);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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103 var cachepath = 'cache/'+u.pathname;
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b8ba20b8f91a Call onInitDOne when all pictures are loaded.
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104 if (isCached(cachepath,file,obj)) {
b8ba20b8f91a Call onInitDOne when all pictures are loaded.
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105 return;
b8ba20b8f91a Call onInitDOne when all pictures are loaded.
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parents: 1386
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106 }
932
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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107 CreateDirectory(cachepath);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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108
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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109 // Fetch file from the server and convert it tyo PNG if it is not PNG format.
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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110 var f = fs.openSync(cachepath,'w');
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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111 sys.puts("f="+f);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
wycc
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112 var headers={
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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113 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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114 'Host':'211.23.50.144:8080',
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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115 'User-Agent':'MadButterfly',
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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116 'Content-Type':'application/x-www-form-urlencoded'
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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117 };
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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118 sys.puts("host="+u.host+' '+u.port+' '+u.pathname);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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119 for(k in u) {
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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120 sys.puts(k+"--->"+u[k]);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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121 }
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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122 var c = http.createClient(8080,'211.23.50.144');
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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123 var req = c.request('GET',u.pathname,headers);
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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124 req.end();
bd9b0142fc7e Update the sample application. We can use the ./test5 to test it now. It will download the image from the VOD server and render it in the screen.
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125 req.on('response', function(res) {
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126 res.on('data',function(data) {
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127 fs.writeSync(f,data,0,data.length);
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128 });
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129 res.on('end',function() {
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130 fs.close(f);
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131 var fields = cachepath.split('.');
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132 var ext = fields.pop();
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133 if (ext != "png" && ext != 'jpg') {
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134 fields.push("png");
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135 newf = fields.join(".");
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136 sys.puts("cachepath="+cachepath+" newf="+newf);
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137 os.spawn("convert",[cachepath,newf]);
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138 } else {
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139 newf = cachepath;
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140 }
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141 try {
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142 fs.unlinkSync(file);
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143 } catch(e) {
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144 }
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145 sys.puts("end of "+cachepath+" to "+file);
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146 fs.symlinkSync(newf, file);
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147 obj.pend = obj.pend - 1;
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148 if (obj.pend == 0) {
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149 obj.onInitDone();
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150 sys.puts("done");
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151 }
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152
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153 });
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154
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155 });
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156 }
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157
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158 EPG.prototype.onLoad = function(res) {
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159 cats = res['ProgramCat'];
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160 this.pend = cats.length;
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161 this.maincat = cats;
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162 for (i in cats) {
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163 c = cats[i];
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164 httpGetFile(c['ProgramPIC'],'cat'+i+'.jpg',this);
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165 sys.puts("this.pend="+this.pend);
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166 }
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167 if (this.pend == 0)
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168 this.onInitDone();
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169 }
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170
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171 EPG.prototype.getList=function(item,func) {
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172 var epgsrv = http.createClient(8080, '211.23.50.144');
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173 var cmd = '{"Protocol":"EPG-CSP","Command":"SearchRequest","ProgramSub":"'+item.Category+'"}';
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174 var headers={
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175 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
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176 'Host':'211.23.50.144:8080',
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177 'User-Agent':'MadButterfly',
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178 'Content-Type':'application/x-www-form-urlencoded'
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179 };
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180 headers['Content-Length'] = cmd.length;
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181 var request = epgsrv.request('POST', '/IPTV_EPG/EPGService.do?timestamp='+new Date().getTime(),headers);
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182 var self = this;
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183 sys.puts("aaaa");
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184 var js = '';
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185 request.write(cmd);
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186 request.end();
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187 request.on('response', function(res) {
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188 sys.puts("connected");
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189 res.on('data',function (data) {
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190 js = js + data;
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191 });
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192 res.on('end', function () {
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193 res = JSON.parse(js);
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194 sys.puts("parsed");
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195 func();
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196
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197 });
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198 });
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199 }
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200 EPG.prototype.onInitDone=function() {
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201 if (this.loadCallback)
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202 this.loadCallback();
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203 }
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204
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205 EPG.prototype.registerInitDone=function(cb) {
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206 this.loadCallback = cb;
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207 }
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208
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209 exports.EPG = EPG;