cfb.njs 4.4 KB

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  1. #!/usr/bin/env node
  2. /* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
  3. /* eslint-env node */
  4. /* vim: set ts=2 ft=javascript: */
  5. var n = "cfb";
  6. var X = require('../');
  7. var fs = require('fs');
  8. var program = require('commander');
  9. var PRINTJ = require("printj");
  10. var sprintf = PRINTJ.sprintf;
  11. program
  12. .version(X.version)
  13. .usage('[options] <file> [subfiles...]')
  14. .option('-l, --list-files', 'list files')
  15. .option('-r, --repair', 'attempt to repair and garbage-collect archive')
  16. .option('-c, --create', 'create file')
  17. .option('-a, --append', 'add files to CFB (overwrite existing data)')
  18. .option('-d, --delete', 'delete files from CFB')
  19. .option('-O, --to-stdout', 'extract raw contents to stdout')
  20. .option('-z, --dump', 'dump internal representation but do not extract')
  21. .option('-q, --quiet', 'process but do not report')
  22. .option('--dev', 'development mode')
  23. .option('--read', 'read but do not print out contents');
  24. program.parse(process.argv);
  25. var exit = process.exit;
  26. var die = function(errno/*:number*/, msg/*:string*/) { console.error(n + ": " + msg); exit(errno); };
  27. var logit = function(cmd/*:string*/, f/*:string*/) { console.error(sprintf("%-6s %s", cmd, f)); };
  28. if(program.args.length === 0) die(1, "must specify a filename");
  29. if(program.create) {
  30. logit("create", program.args[0]);
  31. var newcfb = X.utils.cfb_new();
  32. X.writeFile(newcfb, program.args[0]);
  33. }
  34. if(!fs.existsSync(program.args[0])) die(1, "must specify a filename");
  35. var opts = ({type:'file'}/*:any*/);
  36. if(program.dev) opts.WTF = true;
  37. var cfb = X.read(program.args[0], opts);
  38. if(program.quiet) exit(0);
  39. if(program.dump) {
  40. console.log("Full Paths:");
  41. console.log(cfb.FullPaths.map(function(x/*:string*/) { return " " + x; }).join("\n"));
  42. console.log("File Index:");
  43. console.log(cfb.FileIndex);
  44. exit(0);
  45. }
  46. if(program.repair) { X.writeFile(cfb, program.args[0]); exit(0); }
  47. function fix_string(x/*:string*/)/*:string*/ { return x.replace(/[\u0000-\u001f]/g, function($$) { return sprintf("\\u%04X", $$.charCodeAt(0)); }); }
  48. var format_date = function(date/*:Date*/)/*:string*/ {
  49. return sprintf("%02u-%02u-%02u %02u:%02u", date.getUTCMonth()+1, date.getUTCDate(), date.getUTCFullYear()%100, date.getUTCHours(), date.getUTCMinutes());
  50. };
  51. if(program.listFiles) {
  52. var basetime = new Date(1980,0,1);
  53. var cnt = 0, rootsize = 0, filesize = 0;
  54. console.log(" Length Date Time Name");
  55. console.log(" -------- ---- ---- ----");
  56. cfb.FileIndex.forEach(function(file/*:CFBEntry*/, i/*:number*/) {
  57. switch(file.type) {
  58. case 5:
  59. basetime = file.ct || file.mt || basetime;
  60. rootsize = file.size;
  61. break;
  62. case 2:
  63. console.log(sprintf("%9lu %s %s", file.size, format_date(basetime), fix_string(cfb.FullPaths[i])));
  64. filesize += file.size;
  65. ++cnt;
  66. }
  67. });
  68. console.log(" -------- -------");
  69. console.log(sprintf("%9lu %lu file%s", rootsize || filesize, cnt, (cnt !== 1 ? "s" : "")));
  70. exit(0);
  71. }
  72. function mkdirp(path/*:string*/) { path.split("/").reduce(function(acc/*:string*/, p/*:string*/) {
  73. acc += p + "/";
  74. if(!fs.existsSync(acc)) { logit("mkdir", acc); fs.mkdirSync(acc); }
  75. return acc;
  76. }, ""); }
  77. function write(path/*:string*/, data/*:CFBEntry*/) {
  78. logit("write", fix_string(path));
  79. fs.writeFileSync(path, /*::new Buffer((*/data.content/*:: :any))*/ || new Buffer(0));
  80. }
  81. if(program.create || program.append) {
  82. program.args.slice(1).forEach(function(x/*:string*/) {
  83. logit("append", x);
  84. X.utils.cfb_add(cfb, "/" + x, fs.readFileSync(x));
  85. });
  86. X.writeFile(cfb, program.args[0]);
  87. exit(0);
  88. }
  89. if(program.delete) {
  90. program.args.slice(1).forEach(function(x/*:string*/) {
  91. logit("delete", x);
  92. X.utils.cfb_del(cfb, "/" + x);
  93. });
  94. X.writeFile(cfb, program.args[0]);
  95. exit(0);
  96. }
  97. if(program.args.length > 1) {
  98. program.args.slice(1).forEach(function(x/*:string*/) {
  99. var data/*:?CFBEntry*/ = X.find(cfb, x.replace(/\\u000\d/g,"!"));
  100. if(!data) { console.error(x + ": file not found"); return; }
  101. if(data.type !== 2) { console.error(x + ": not a file"); return; }
  102. var idx = cfb.FileIndex.indexOf(data), path = cfb.FullPaths[idx];
  103. if(program.toStdout) return process.stdout.write(/*::new Buffer((*/data.content/*:: :any))*/);
  104. mkdirp(path.slice(0, path.lastIndexOf("/")));
  105. write(path, data);
  106. });
  107. exit(0);
  108. }
  109. if(program.toStdout) exit(0);
  110. for(var i=0; i!==cfb.FullPaths.length; ++i) {
  111. if(!cfb.FileIndex[i].name) continue;
  112. if(cfb.FullPaths[i].slice(-1) === "/") mkdirp(cfb.FullPaths[i]);
  113. else write(cfb.FullPaths[i], cfb.FileIndex[i]);
  114. }