m. update

7 files changed, 591 insertions, 0 deletions

diff --git a/together/node_modules/formidable/src/parsers/Dummy.js b/together/node_modules/formidable/src/parsers/Dummy.js
new file mode 100644
index 0000000..6340959
--- /dev/null
+++ b/together/node_modules/formidable/src/parsers/Dummy.js
@@ -0,0 +1,21 @@
+/* eslint-disable no-underscore-dangle */
+
+'use strict';
+
+const { Transform } = require('stream');
+
+class DummyParser extends Transform {
+  constructor(incomingForm, options = {}) {
+    super();
+    this.globalOptions = { ...options };
+    this.incomingForm = incomingForm;
+  }
+
+  _flush(callback) {
+    this.incomingForm.ended = true;
+    this.incomingForm._maybeEnd();
+    callback();
+  }
+}
+
+module.exports = DummyParser;
diff --git a/together/node_modules/formidable/src/parsers/JSON.js b/together/node_modules/formidable/src/parsers/JSON.js
new file mode 100644
index 0000000..9a096c2
--- /dev/null
+++ b/together/node_modules/formidable/src/parsers/JSON.js
@@ -0,0 +1,35 @@
+/* eslint-disable no-underscore-dangle */
+
+'use strict';
+
+const { Transform } = require('stream');
+
+class JSONParser extends Transform {
+  constructor(options = {}) {
+    super({ readableObjectMode: true });
+    this.chunks = [];
+    this.globalOptions = { ...options };
+  }
+
+  _transform(chunk, encoding, callback) {
+    this.chunks.push(String(chunk)); // todo consider using a string decoder
+    callback();
+  }
+
+  _flush(callback) {
+    try {
+      const fields = JSON.parse(this.chunks.join(''));
+      Object.keys(fields).forEach((key) => {
+        const value = fields[key];
+        this.push({ key, value });
+      });
+    } catch (e) {
+      callback(e);
+      return;
+    }
+    this.chunks = null;
+    callback();
+  }
+}
+
+module.exports = JSONParser;
diff --git a/together/node_modules/formidable/src/parsers/Multipart.js b/together/node_modules/formidable/src/parsers/Multipart.js
new file mode 100644
index 0000000..23a298a
--- /dev/null
+++ b/together/node_modules/formidable/src/parsers/Multipart.js
@@ -0,0 +1,347 @@
+/* eslint-disable no-fallthrough */
+/* eslint-disable no-bitwise */
+/* eslint-disable no-plusplus */
+/* eslint-disable no-underscore-dangle */
+
+'use strict';
+
+const { Transform } = require('stream');
+const errors = require('../FormidableError.js');
+
+const { FormidableError } = errors;
+
+let s = 0;
+const STATE = {
+  PARSER_UNINITIALIZED: s++,
+  START: s++,
+  START_BOUNDARY: s++,
+  HEADER_FIELD_START: s++,
+  HEADER_FIELD: s++,
+  HEADER_VALUE_START: s++,
+  HEADER_VALUE: s++,
+  HEADER_VALUE_ALMOST_DONE: s++,
+  HEADERS_ALMOST_DONE: s++,
+  PART_DATA_START: s++,
+  PART_DATA: s++,
+  PART_END: s++,
+  END: s++,
+};
+
+let f = 1;
+const FBOUNDARY = { PART_BOUNDARY: f, LAST_BOUNDARY: (f *= 2) };
+
+const LF = 10;
+const CR = 13;
+const SPACE = 32;
+const HYPHEN = 45;
+const COLON = 58;
+const A = 97;
+const Z = 122;
+
+function lower(c) {
+  return c | 0x20;
+}
+
+exports.STATES = {};
+
+Object.keys(STATE).forEach((stateName) => {
+  exports.STATES[stateName] = STATE[stateName];
+});
+
+class MultipartParser extends Transform {
+  constructor(options = {}) {
+    super({ readableObjectMode: true });
+    this.boundary = null;
+    this.boundaryChars = null;
+    this.lookbehind = null;
+    this.bufferLength = 0;
+    this.state = STATE.PARSER_UNINITIALIZED;
+
+    this.globalOptions = { ...options };
+    this.index = null;
+    this.flags = 0;
+  }
+
+  _flush(done) {
+    if (
+      (this.state === STATE.HEADER_FIELD_START && this.index === 0) ||
+      (this.state === STATE.PART_DATA && this.index === this.boundary.length)
+    ) {
+      this._handleCallback('partEnd');
+      this._handleCallback('end');
+      done();
+    } else if (this.state !== STATE.END) {
+      done(
+        new FormidableError(
+          `MultipartParser.end(): stream ended unexpectedly: ${this.explain()}`,
+          errors.malformedMultipart,
+          400,
+        ),
+      );
+    }
+  }
+
+  initWithBoundary(str) {
+    this.boundary = Buffer.from(`\r\n--${str}`);
+    this.lookbehind = Buffer.alloc(this.boundary.length + 8);
+    this.state = STATE.START;
+    this.boundaryChars = {};
+
+    for (let i = 0; i < this.boundary.length; i++) {
+      this.boundaryChars[this.boundary[i]] = true;
+    }
+  }
+
+  // eslint-disable-next-line max-params
+  _handleCallback(name, buf, start, end) {
+    if (start !== undefined && start === end) {
+      return;
+    }
+    this.push({ name, buffer: buf, start, end });
+  }
+
+  // eslint-disable-next-line max-statements
+  _transform(buffer, _, done) {
+    let i = 0;
+    let prevIndex = this.index;
+    let { index, state, flags } = this;
+    const { lookbehind, boundary, boundaryChars } = this;
+    const boundaryLength = boundary.length;
+    const boundaryEnd = boundaryLength - 1;
+    this.bufferLength = buffer.length;
+    let c = null;
+    let cl = null;
+
+    const setMark = (name, idx) => {
+      this[`${name}Mark`] = typeof idx === 'number' ? idx : i;
+    };
+
+    const clearMarkSymbol = (name) => {
+      delete this[`${name}Mark`];
+    };
+
+    const dataCallback = (name, shouldClear) => {
+      const markSymbol = `${name}Mark`;
+      if (!(markSymbol in this)) {
+        return;
+      }
+
+      if (!shouldClear) {
+        this._handleCallback(name, buffer, this[markSymbol], buffer.length);
+        setMark(name, 0);
+      } else {
+        this._handleCallback(name, buffer, this[markSymbol], i);
+        clearMarkSymbol(name);
+      }
+    };
+
+    for (i = 0; i < this.bufferLength; i++) {
+      c = buffer[i];
+      switch (state) {
+        case STATE.PARSER_UNINITIALIZED:
+          return i;
+        case STATE.START:
+          index = 0;
+          state = STATE.START_BOUNDARY;
+        case STATE.START_BOUNDARY:
+          if (index === boundary.length - 2) {
+            if (c === HYPHEN) {
+              flags |= FBOUNDARY.LAST_BOUNDARY;
+            } else if (c !== CR) {
+              return i;
+            }
+            index++;
+            break;
+          } else if (index - 1 === boundary.length - 2) {
+            if (flags & FBOUNDARY.LAST_BOUNDARY && c === HYPHEN) {
+              this._handleCallback('end');
+              state = STATE.END;
+              flags = 0;
+            } else if (!(flags & FBOUNDARY.LAST_BOUNDARY) && c === LF) {
+              index = 0;
+              this._handleCallback('partBegin');
+              state = STATE.HEADER_FIELD_START;
+            } else {
+              return i;
+            }
+            break;
+          }
+
+          if (c !== boundary[index + 2]) {
+            index = -2;
+          }
+          if (c === boundary[index + 2]) {
+            index++;
+          }
+          break;
+        case STATE.HEADER_FIELD_START:
+          state = STATE.HEADER_FIELD;
+          setMark('headerField');
+          index = 0;
+        case STATE.HEADER_FIELD:
+          if (c === CR) {
+            clearMarkSymbol('headerField');
+            state = STATE.HEADERS_ALMOST_DONE;
+            break;
+          }
+
+          index++;
+          if (c === HYPHEN) {
+            break;
+          }
+
+          if (c === COLON) {
+            if (index === 1) {
+              // empty header field
+              return i;
+            }
+            dataCallback('headerField', true);
+            state = STATE.HEADER_VALUE_START;
+            break;
+          }
+
+          cl = lower(c);
+          if (cl < A || cl > Z) {
+            return i;
+          }
+          break;
+        case STATE.HEADER_VALUE_START:
+          if (c === SPACE) {
+            break;
+          }
+
+          setMark('headerValue');
+          state = STATE.HEADER_VALUE;
+        case STATE.HEADER_VALUE:
+          if (c === CR) {
+            dataCallback('headerValue', true);
+            this._handleCallback('headerEnd');
+            state = STATE.HEADER_VALUE_ALMOST_DONE;
+          }
+          break;
+        case STATE.HEADER_VALUE_ALMOST_DONE:
+          if (c !== LF) {
+            return i;
+          }
+          state = STATE.HEADER_FIELD_START;
+          break;
+        case STATE.HEADERS_ALMOST_DONE:
+          if (c !== LF) {
+            return i;
+          }
+
+          this._handleCallback('headersEnd');
+          state = STATE.PART_DATA_START;
+          break;
+        case STATE.PART_DATA_START:
+          state = STATE.PART_DATA;
+          setMark('partData');
+        case STATE.PART_DATA:
+          prevIndex = index;
+
+          if (index === 0) {
+            // boyer-moore derrived algorithm to safely skip non-boundary data
+            i += boundaryEnd;
+            while (i < this.bufferLength && !(buffer[i] in boundaryChars)) {
+              i += boundaryLength;
+            }
+            i -= boundaryEnd;
+            c = buffer[i];
+          }
+
+          if (index < boundary.length) {
+            if (boundary[index] === c) {
+              if (index === 0) {
+                dataCallback('partData', true);
+              }
+              index++;
+            } else {
+              index = 0;
+            }
+          } else if (index === boundary.length) {
+            index++;
+            if (c === CR) {
+              // CR = part boundary
+              flags |= FBOUNDARY.PART_BOUNDARY;
+            } else if (c === HYPHEN) {
+              // HYPHEN = end boundary
+              flags |= FBOUNDARY.LAST_BOUNDARY;
+            } else {
+              index = 0;
+            }
+          } else if (index - 1 === boundary.length) {
+            if (flags & FBOUNDARY.PART_BOUNDARY) {
+              index = 0;
+              if (c === LF) {
+                // unset the PART_BOUNDARY flag
+                flags &= ~FBOUNDARY.PART_BOUNDARY;
+                this._handleCallback('partEnd');
+                this._handleCallback('partBegin');
+                state = STATE.HEADER_FIELD_START;
+                break;
+              }
+            } else if (flags & FBOUNDARY.LAST_BOUNDARY) {
+              if (c === HYPHEN) {
+                this._handleCallback('partEnd');
+                this._handleCallback('end');
+                state = STATE.END;
+                flags = 0;
+              } else {
+                index = 0;
+              }
+            } else {
+              index = 0;
+            }
+          }
+
+          if (index > 0) {
+            // when matching a possible boundary, keep a lookbehind reference
+            // in case it turns out to be a false lead
+            lookbehind[index - 1] = c;
+          } else if (prevIndex > 0) {
+            // if our boundary turned out to be rubbish, the captured lookbehind
+            // belongs to partData
+            this._handleCallback('partData', lookbehind, 0, prevIndex);
+            prevIndex = 0;
+            setMark('partData');
+
+            // reconsider the current character even so it interrupted the sequence
+            // it could be the beginning of a new sequence
+            i--;
+          }
+
+          break;
+        case STATE.END:
+          break;
+        default:
+          return i;
+      }
+    }
+
+    dataCallback('headerField');
+    dataCallback('headerValue');
+    dataCallback('partData');
+
+    this.index = index;
+    this.state = state;
+    this.flags = flags;
+
+    done();
+    return this.bufferLength;
+  }
+
+  explain() {
+    return `state = ${MultipartParser.stateToString(this.state)}`;
+  }
+}
+
+// eslint-disable-next-line consistent-return
+MultipartParser.stateToString = (stateNumber) => {
+  // eslint-disable-next-line no-restricted-syntax, guard-for-in
+  for (const stateName in STATE) {
+    const number = STATE[stateName];
+    if (number === stateNumber) return stateName;
+  }
+};
+
+module.exports = Object.assign(MultipartParser, { STATES: exports.STATES });
diff --git a/together/node_modules/formidable/src/parsers/OctetStream.js b/together/node_modules/formidable/src/parsers/OctetStream.js
new file mode 100644
index 0000000..cdf55f2
--- /dev/null
+++ b/together/node_modules/formidable/src/parsers/OctetStream.js
@@ -0,0 +1,12 @@
+'use strict';
+
+const { PassThrough } = require('stream');
+
+class OctetStreamParser extends PassThrough {
+  constructor(options = {}) {
+    super();
+    this.globalOptions = { ...options };
+  }
+}
+
+module.exports = OctetStreamParser;
diff --git a/together/node_modules/formidable/src/parsers/Querystring.js b/together/node_modules/formidable/src/parsers/Querystring.js
new file mode 100644
index 0000000..a0d4243
--- /dev/null
+++ b/together/node_modules/formidable/src/parsers/Querystring.js
@@ -0,0 +1,38 @@
+/* eslint-disable no-underscore-dangle */
+
+'use strict';
+
+const { Transform } = require('stream');
+const querystring = require('querystring');
+
+// This is a buffering parser, not quite as nice as the multipart one.
+// If I find time I'll rewrite this to be fully streaming as well
+class QuerystringParser extends Transform {
+  constructor(options = {}) {
+    super({ readableObjectMode: true });
+    this.globalOptions = { ...options };
+    this.buffer = '';
+    this.bufferLength = 0;
+  }
+
+  _transform(buffer, encoding, callback) {
+    this.buffer += buffer.toString('ascii');
+    this.bufferLength = this.buffer.length;
+    callback();
+  }
+
+  _flush(callback) {
+    const fields = querystring.parse(this.buffer, '&', '=');
+    // eslint-disable-next-line no-restricted-syntax, guard-for-in
+    for (const key in fields) {
+      this.push({
+        key,
+        value: fields[key],
+      });
+    }
+    this.buffer = '';
+    callback();
+  }
+}
+
+module.exports = QuerystringParser;
diff --git a/together/node_modules/formidable/src/parsers/StreamingQuerystring.js b/together/node_modules/formidable/src/parsers/StreamingQuerystring.js
new file mode 100644
index 0000000..06d7577
--- /dev/null
+++ b/together/node_modules/formidable/src/parsers/StreamingQuerystring.js
@@ -0,0 +1,121 @@
+// not used
+/* eslint-disable no-underscore-dangle */
+
+'use strict';
+
+const { Transform } = require('stream');
+const errors = require('../FormidableError.js');
+
+const { FormidableError } = errors;
+
+const AMPERSAND = 38;
+const EQUALS = 61;
+
+class QuerystringParser extends Transform {
+  constructor(options = {}) {
+    super({ readableObjectMode: true });
+
+    const { maxFieldSize } = options;
+    this.maxFieldLength = maxFieldSize;
+    this.buffer = Buffer.from('');
+    this.fieldCount = 0;
+    this.sectionStart = 0;
+    this.key = '';
+    this.readingKey = true;
+  }
+
+  _transform(buffer, encoding, callback) {
+    let len = buffer.length;
+    if (this.buffer && this.buffer.length) {
+      // we have some data left over from the last write which we are in the middle of processing
+      len += this.buffer.length;
+      buffer = Buffer.concat([this.buffer, buffer], len);
+    }
+
+    for (let i = this.buffer.length || 0; i < len; i += 1) {
+      const c = buffer[i];
+      if (this.readingKey) {
+        // KEY, check for =
+        if (c === EQUALS) {
+          this.key = this.getSection(buffer, i);
+          this.readingKey = false;
+          this.sectionStart = i + 1;
+        } else if (c === AMPERSAND) {
+          // just key, no value. Prepare to read another key
+          this.emitField(this.getSection(buffer, i));
+          this.sectionStart = i + 1;
+        }
+        // VALUE, check for &
+      } else if (c === AMPERSAND) {
+        this.emitField(this.key, this.getSection(buffer, i));
+        this.sectionStart = i + 1;
+      }
+
+      if (
+        this.maxFieldLength &&
+        i - this.sectionStart === this.maxFieldLength
+      ) {
+        callback(
+          new FormidableError(
+            `${
+              this.readingKey ? 'Key' : `Value for ${this.key}`
+            } longer than maxFieldLength`,
+          ),
+          errors.maxFieldsSizeExceeded,
+          413,
+        );
+      }
+    }
+
+    // Prepare the remaining key or value (from sectionStart to the end) for the next write() or for end()
+    len -= this.sectionStart;
+    if (len) {
+      // i.e. Unless the last character was a & or =
+      this.buffer = Buffer.from(this.buffer, 0, this.sectionStart);
+    } else this.buffer = null;
+
+    this.sectionStart = 0;
+    callback();
+  }
+
+  _flush(callback) {
+    // Emit the last field
+    if (this.readingKey) {
+      // we only have a key if there's something in the buffer. We definitely have no value
+        if (this.buffer && this.buffer.length){
+          this.emitField(this.buffer.toString('ascii'));
+        }
+    } else {
+      // We have a key, we may or may not have a value
+      this.emitField(
+        this.key,
+        this.buffer && this.buffer.length && this.buffer.toString('ascii'),
+      );
+    }
+    this.buffer = '';
+    callback();
+  }
+
+  getSection(buffer, i) {
+    if (i === this.sectionStart) return '';
+
+    return buffer.toString('ascii', this.sectionStart, i);
+  }
+
+  emitField(key, val) {
+    this.key = '';
+    this.readingKey = true;
+    this.push({ key, value: val || '' });
+  }
+}
+
+module.exports = QuerystringParser;
+
+// const q = new QuerystringParser({maxFieldSize: 100});
+// (async function() {
+//     for await (const chunk of q) {
+//       console.log(chunk);
+//     }
+// })();
+// q.write("a=b&c=d")
+// q.end()
diff --git a/together/node_modules/formidable/src/parsers/index.js b/together/node_modules/formidable/src/parsers/index.js
new file mode 100644
index 0000000..bbf9ef6
--- /dev/null
+++ b/together/node_modules/formidable/src/parsers/index.js
@@ -0,0 +1,17 @@
+'use strict';
+
+const JSONParser = require('./JSON');
+const DummyParser = require('./Dummy');
+const MultipartParser = require('./Multipart');
+const OctetStreamParser = require('./OctetStream');
+const QueryStringParser = require('./Querystring');
+
+Object.assign(exports, {
+  JSONParser,
+  DummyParser,
+  MultipartParser,
+  OctetStreamParser,
+  OctetstreamParser: OctetStreamParser,
+  QueryStringParser,
+  QuerystringParser: QueryStringParser,
+});