done purchases remove, ocr scan, read image

express-server/node_modules/busboy/lib/utils.js

@@ -0,0 +1,186 @@
+var jsencoding = require('../deps/encoding/encoding');
+
+var RE_ENCODED = /%([a-fA-F0-9]{2})/g;
+function encodedReplacer(match, byte) {
+  return String.fromCharCode(parseInt(byte, 16));
+}
+function parseParams(str) {
+  var res = [],
+      state = 'key',
+      charset = '',
+      inquote = false,
+      escaping = false,
+      p = 0,
+      tmp = '';
+
+  for (var i = 0, len = str.length; i < len; ++i) {
+    if (str[i] === '\\' && inquote) {
+      if (escaping)
+        escaping = false;
+      else {
+        escaping = true;
+        continue;
+      }
+    } else if (str[i] === '"') {
+      if (!escaping) {
+        if (inquote) {
+          inquote = false;
+          state = 'key';
+        } else
+          inquote = true;
+        continue;
+      } else
+        escaping = false;
+    } else {
+      if (escaping && inquote)
+        tmp += '\\';
+      escaping = false;
+      if ((state === 'charset' || state === 'lang') && str[i] === "'") {
+        if (state === 'charset') {
+          state = 'lang';
+          charset = tmp.substring(1);
+        } else
+          state = 'value';
+        tmp = '';
+        continue;
+      } else if (state === 'key'
+                 && (str[i] === '*' || str[i] === '=')
+                 && res.length) {
+        if (str[i] === '*')
+          state = 'charset';
+        else
+          state = 'value';
+        res[p] = [tmp, undefined];
+        tmp = '';
+        continue;
+      } else if (!inquote && str[i] === ';') {
+        state = 'key';
+        if (charset) {
+          if (tmp.length) {
+            tmp = decodeText(tmp.replace(RE_ENCODED, encodedReplacer),
+                             'binary',
+                             charset);
+          }
+          charset = '';
+        }
+        if (res[p] === undefined)
+          res[p] = tmp;
+        else
+          res[p][1] = tmp;
+        tmp = '';
+        ++p;
+        continue;
+      } else if (!inquote && (str[i] === ' ' || str[i] === '\t'))
+        continue;
+    }
+    tmp += str[i];
+  }
+  if (charset && tmp.length) {
+    tmp = decodeText(tmp.replace(RE_ENCODED, encodedReplacer),
+                     'binary',
+                     charset);
+  }
+
+  if (res[p] === undefined) {
+    if (tmp)
+      res[p] = tmp;
+  } else
+    res[p][1] = tmp;
+
+  return res;
+};
+exports.parseParams = parseParams;
+
+
+function decodeText(text, textEncoding, destEncoding) {
+  var ret;
+  if (text && jsencoding.encodingExists(destEncoding)) {
+    try {
+      ret = jsencoding.TextDecoder(destEncoding)
+                      .decode(new Buffer(text, textEncoding));
+    } catch(e) {}
+  }
+  return (typeof ret === 'string' ? ret : text);
+}
+exports.decodeText = decodeText;
+
+
+var HEX = [
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+], RE_PLUS = /\+/g;
+function Decoder() {
+  this.buffer = undefined;
+}
+Decoder.prototype.write = function(str) {
+  // Replace '+' with ' ' before decoding
+  str = str.replace(RE_PLUS, ' ');
+  var res = '';
+  var i = 0, p = 0, len = str.length;
+  for (; i < len; ++i) {
+    if (this.buffer !== undefined) {
+      if (!HEX[str.charCodeAt(i)]) {
+        res += '%' + this.buffer;
+        this.buffer = undefined;
+        --i; // retry character
+      } else {
+        this.buffer += str[i];
+        ++p;
+        if (this.buffer.length === 2) {
+          res += String.fromCharCode(parseInt(this.buffer, 16));
+          this.buffer = undefined;
+        }
+      }
+    } else if (str[i] === '%') {
+      if (i > p) {
+        res += str.substring(p, i);
+        p = i;
+      }
+      this.buffer = '';
+      ++p;
+    }
+  }
+  if (p < len && this.buffer === undefined)
+    res += str.substring(p);
+  return res;
+};
+Decoder.prototype.reset = function() {
+  this.buffer = undefined;
+};
+exports.Decoder = Decoder;
+
+
+var RE_SPLIT_POSIX =
+      /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/,
+    RE_SPLIT_DEVICE =
+      /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/,
+    RE_SPLIT_WINDOWS =
+      /^([\s\S]*?)((?:\.{1,2}|[^\\\/]+?|)(\.[^.\/\\]*|))(?:[\\\/]*)$/;
+function splitPathPosix(filename) {
+  return RE_SPLIT_POSIX.exec(filename).slice(1);
+}
+function splitPathWindows(filename) {
+  // Separate device+slash from tail
+  var result = RE_SPLIT_DEVICE.exec(filename),
+      device = (result[1] || '') + (result[2] || ''),
+      tail = result[3] || '';
+  // Split the tail into dir, basename and extension
+  var result2 = RE_SPLIT_WINDOWS.exec(tail),
+      dir = result2[1],
+      basename = result2[2],
+      ext = result2[3];
+  return [device, dir, basename, ext];
+}
+function basename(path) {
+  var f = splitPathPosix(path)[2];
+  if (f === path)
+    f = splitPathWindows(path)[2];
+  return f;
+}
+exports.basename = basename;