Very Popular
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169import { Code } from "../code.ts";import { BSON_BINARY_SUBTYPE_DEFAULT, BSON_INT32_MAX, BSON_INT32_MIN, BSONData,} from "../constants.ts";import { DBRef, DBRefLike } from "../db_ref.ts";import { Decimal128 } from "../decimal128.ts";import { Double } from "../double.ts";import { BSONError, BSONTypeError } from "../error.ts";import { writeIEEE754 } from "../float_parser.ts";import { Int32 } from "../int_32.ts";import { Long } from "../long.ts";import { MinKey } from "../min_key.ts";import { MaxKey } from "../max_key.ts";import { ObjectId } from "../objectid.ts";import { Timestamp } from "../timestamp.ts";import { BSONRegExp } from "../regexp.ts";import { Encoding, normalizedFunctionString, writeToBytes } from "./utils.ts";import { Binary, BinarySizes, BSONSymbol, Document } from "../bson.ts";/** @public */export interface SerializeOptions { /** the serializer will check if keys are valid. */ checkKeys?: boolean; /** serialize the javascript functions **(default:false)**. */ serializeFunctions?: boolean; /** serialize will not emit undefined fields **(default:true)** */ ignoreUndefined?: boolean; /** the index in the buffer where we wish to start serializing into */ index?: number;}
// deno-lint-ignore no-control-regexconst regexp = /\x00/;const ignoreKeys = new Set(["$db", "$ref", "$id", "$clusterTime"]);
/* * isArray indicates if we are writing to a BSON array (type 0x04) * which forces the "key" which really an array index as a string to be written as ascii * This will catch any errors in index as a string generation */
function serializeString( buffer: Uint8Array, key: string, value: string, index: number, isArray?: boolean,) { // Encode String type buffer[index++] = BSONData.STRING; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index = index + numberOfWrittenBytes + 1; buffer[index - 1] = 0; // Write the string const size = writeToBytes(buffer, value, index + 4, Encoding.Utf8); // Write the size of the string to buffer buffer[index + 3] = ((size + 1) >> 24) & 0xff; buffer[index + 2] = ((size + 1) >> 16) & 0xff; buffer[index + 1] = ((size + 1) >> 8) & 0xff; buffer[index] = (size + 1) & 0xff; // Update index index = index + 4 + size; // Write zero buffer[index++] = 0; return index;}
function serializeNumber( buffer: Uint8Array, key: string, value: number, index: number, isArray?: boolean,) { // We have an integer value // TODO(NODE-2529): Add support for big int if ( Number.isInteger(value) && value >= BSON_INT32_MIN && value <= BSON_INT32_MAX ) { // If the value fits in 32 bits encode as int32 // Set int type 32 bits or less buffer[index++] = BSONData.INT; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Write the int value buffer[index++] = value & 0xff; buffer[index++] = (value >> 8) & 0xff; buffer[index++] = (value >> 16) & 0xff; buffer[index++] = (value >> 24) & 0xff; } else { // Encode as double buffer[index++] = BSONData.NUMBER; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Write float writeIEEE754(buffer, value, index, "little", 52, 8); // Adjust index index += 8; }
return index;}
function serializeNull( buffer: Uint8Array, key: string, _: unknown, index: number, isArray?: boolean,) { // Set long type buffer[index++] = BSONData.NULL;
// Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii);
// Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; return index;}
function serializeBoolean( buffer: Uint8Array, key: string, value: boolean, index: number, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.BOOLEAN; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Encode the boolean value buffer[index++] = value ? 1 : 0; return index;}
function serializeDate( buffer: Uint8Array, key: string, value: Date, index: number, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.DATE; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0;
// Write the date const dateInMilis = Long.fromNumber(value.getTime()); const lowBits = dateInMilis.getLowBits(); const highBits = dateInMilis.getHighBits(); // Encode low bits buffer[index++] = lowBits & 0xff; buffer[index++] = (lowBits >> 8) & 0xff; buffer[index++] = (lowBits >> 16) & 0xff; buffer[index++] = (lowBits >> 24) & 0xff; // Encode high bits buffer[index++] = highBits & 0xff; buffer[index++] = (highBits >> 8) & 0xff; buffer[index++] = (highBits >> 16) & 0xff; buffer[index++] = (highBits >> 24) & 0xff; return index;}
function serializeRegExp( buffer: Uint8Array, key: string, value: RegExp, index: number, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.REGEXP; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii);
// Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; if (value.source && value.source.match(regexp) != null) { throw Error(`value ${value.source} must not contain null bytes`); } // Adjust the index index += writeToBytes(buffer, value.source, index, Encoding.Utf8); // Write zero buffer[index++] = 0x00; // Write the parameters if (value.ignoreCase) buffer[index++] = 0x69; // i if (value.global) buffer[index++] = 0x73; // s if (value.multiline) buffer[index++] = 0x6d; // m
// Add ending zero buffer[index++] = 0x00; return index;}
function serializeBSONRegExp( buffer: Uint8Array, key: string, value: BSONRegExp, index: number, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.REGEXP; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0;
// Check the pattern for 0 bytes if (value.pattern.match(regexp) != null) { // The BSON spec doesn't allow keys with null bytes because keys are // null-terminated. throw Error(`pattern ${value.pattern} must not contain null bytes`); }
// Adjust the index index += writeToBytes(buffer, value.pattern, index, Encoding.Utf8); // Write zero buffer[index++] = 0x00; // Write the options index += writeToBytes( buffer, value.options.split("").sort().join(""), index, Encoding.Utf8, ); // Add ending zero buffer[index++] = 0x00; return index;}
function serializeMinMax( buffer: Uint8Array, key: string, value: MinKey | MaxKey, index: number, isArray?: boolean,) { // Write the type of either min or max key if (value === null) { buffer[index++] = BSONData.NULL; } else if (value instanceof MinKey) { buffer[index++] = BSONData.MIN_KEY; } else { buffer[index++] = BSONData.MAX_KEY; }
// Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; return index;}
function serializeObjectId( buffer: Uint8Array, key: string, value: ObjectId, index: number, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.OID; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii);
// Encode the name index += numberOfWrittenBytes; buffer[index++] = 0;
// Write the objectId into the shared buffer if (typeof value.id === "string") { writeToBytes(buffer, value.id, index, Encoding.Ascii); } else if (value.id instanceof Uint8Array) { // Use the standard JS methods here because buffer.copy() is buggy with the // browser polyfill buffer.set(value.id.subarray(0, 12), index); } else { throw new BSONTypeError( `object [${JSON.stringify(value)}] is not a valid ObjectId`, ); }
// Adjust index return index + 12;}
function serializeBuffer( buffer: Uint8Array, key: string, value: Uint8Array, index: number, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.BINARY; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Get size of the buffer (current write point) const size = value.length; // Write the size of the string to buffer buffer[index++] = size & 0xff; buffer[index++] = (size >> 8) & 0xff; buffer[index++] = (size >> 16) & 0xff; buffer[index++] = (size >> 24) & 0xff; // Write the default subtype buffer[index++] = BSON_BINARY_SUBTYPE_DEFAULT; // Copy the content form the binary field to the buffer buffer.set(value, index); // Adjust the index index += size; return index;}
function serializeObject( buffer: Uint8Array, key: string, value: Document, index: number, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, isArray = false, path: Document[] = [],) { for (let i = 0; i < path.length; i++) { if (path[i] === value) throw new BSONError("cyclic dependency detected"); }
// Push value to stack path.push(value); // Write the type buffer[index++] = Array.isArray(value) ? BSONData.ARRAY : BSONData.OBJECT; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; const endIndex = serializeInto( buffer, value, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, path, ); // Pop stack path.pop(); return endIndex;}
function serializeDecimal128( buffer: Uint8Array, key: string, value: Decimal128, index: number, isArray?: boolean,) { buffer[index++] = BSONData.DECIMAL128; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Write the data from the value // Prefer the standard JS methods because their typechecking is not buggy, // unlike the `buffer` polyfill's. buffer.set(value.bytes.subarray(0, 16), index); return index + 16;}
function serializeLong( buffer: Uint8Array, key: string, value: Long | Timestamp, index: number, isArray?: boolean,) { // Write the type buffer[index++] = value instanceof Timestamp ? BSONData.TIMESTAMP : BSONData.LONG; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Write the date const lowBits = value.getLowBits(); const highBits = value.getHighBits(); // Encode low bits buffer[index++] = lowBits & 0xff; buffer[index++] = (lowBits >> 8) & 0xff; buffer[index++] = (lowBits >> 16) & 0xff; buffer[index++] = (lowBits >> 24) & 0xff; // Encode high bits buffer[index++] = highBits & 0xff; buffer[index++] = (highBits >> 8) & 0xff; buffer[index++] = (highBits >> 16) & 0xff; buffer[index++] = (highBits >> 24) & 0xff; return index;}
function serializeInt32( buffer: Uint8Array, key: string, value: Int32 | number, index: number, isArray?: boolean,) { value = value.valueOf(); // Set int type 32 bits or less buffer[index++] = BSONData.INT; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Write the int value buffer[index++] = value & 0xff; buffer[index++] = (value >> 8) & 0xff; buffer[index++] = (value >> 16) & 0xff; buffer[index++] = (value >> 24) & 0xff; return index;}
function serializeDouble( buffer: Uint8Array, key: string, value: Double, index: number, isArray?: boolean,) { // Encode as double buffer[index++] = BSONData.NUMBER;
// Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii);
// Encode the name index += numberOfWrittenBytes; buffer[index++] = 0;
// Write float writeIEEE754(buffer, value.value, index, "little", 52, 8);
// Adjust index index += 8; return index;}
function serializeFunction( buffer: Uint8Array, key: string, // deno-lint-ignore ban-types value: Function, index: number, _checkKeys = false, _depth = 0, isArray?: boolean,) { buffer[index++] = BSONData.CODE; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Function string const functionString = normalizedFunctionString(value);
// Write the string const size = writeToBytes(buffer, functionString, index + 4, Encoding.Utf8) + 1; // Write the size of the string to buffer buffer[index] = size & 0xff; buffer[index + 1] = (size >> 8) & 0xff; buffer[index + 2] = (size >> 16) & 0xff; buffer[index + 3] = (size >> 24) & 0xff; // Update index index = index + 4 + size - 1; // Write zero buffer[index++] = 0; return index;}
function serializeCode( buffer: Uint8Array, key: string, value: Code, index: number, checkKeys = false, depth = 0, serializeFunctions = false, ignoreUndefined = true, isArray = false,) { if (value.scope && typeof value.scope === "object") { // Write the type buffer[index++] = BSONData.CODE_W_SCOPE; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0;
// Starting index let startIndex = index;
// Serialize the function // Get the function string const functionString = typeof value.code === "string" ? value.code : value.code.toString(); // Index adjustment index += 4; // Write string into buffer const codeSize = writeToBytes(buffer, functionString, index + 4, Encoding.Utf8) + 1; // Write the size of the string to buffer buffer[index] = codeSize & 0xff; buffer[index + 1] = (codeSize >> 8) & 0xff; buffer[index + 2] = (codeSize >> 16) & 0xff; buffer[index + 3] = (codeSize >> 24) & 0xff; // Write end 0 buffer[index + 4 + codeSize - 1] = 0; // Write the index = index + codeSize + 4;
// // Serialize the scope value const endIndex = serializeInto( buffer, value.scope, checkKeys, index, depth + 1, serializeFunctions, ignoreUndefined, ); index = endIndex - 1;
// Writ the total const totalSize = endIndex - startIndex;
// Write the total size of the object buffer[startIndex++] = totalSize & 0xff; buffer[startIndex++] = (totalSize >> 8) & 0xff; buffer[startIndex++] = (totalSize >> 16) & 0xff; buffer[startIndex++] = (totalSize >> 24) & 0xff; } else { buffer[index++] = BSONData.CODE; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Function string const functionString = value.code.toString(); // Write the string const size = writeToBytes(buffer, functionString, index + 4, Encoding.Utf8) + 1; // Write the size of the string to buffer buffer[index] = size & 0xff; buffer[index + 1] = (size >> 8) & 0xff; buffer[index + 2] = (size >> 16) & 0xff; buffer[index + 3] = (size >> 24) & 0xff; // Update index index = index + 4 + size - 1; } // Write zero buffer[index++] = 0;
return index;}
function serializeBinary( buffer: Uint8Array, key: string, value: Binary, index: number, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.BINARY; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Extract the buffer const data = value.buffer; // Calculate size let size = value.buffer.length; // Add the deprecated 02 type 4 bytes of size to total if (value.subType === BinarySizes.SUBTYPE_BYTE_ARRAY) size += 4; // Write the size of the string to buffer buffer[index++] = size & 0xff; buffer[index++] = (size >> 8) & 0xff; buffer[index++] = (size >> 16) & 0xff; buffer[index++] = (size >> 24) & 0xff; // Write the subtype to the buffer buffer[index++] = value.subType;
// If we have binary type 2 the 4 first bytes are the size if (value.subType === BinarySizes.SUBTYPE_BYTE_ARRAY) { size -= 4; buffer[index++] = size & 0xff; buffer[index++] = (size >> 8) & 0xff; buffer[index++] = (size >> 16) & 0xff; buffer[index++] = (size >> 24) & 0xff; }
// Write the data to the object buffer.set(data, index); // Adjust the index index += size; return index;}
function serializeSymbol( buffer: Uint8Array, key: string, value: BSONSymbol, index: number, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.SYMBOL; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii); // Encode the name index += numberOfWrittenBytes; buffer[index++] = 0; // Write the string const size = writeToBytes(buffer, value.value, index + 4, Encoding.Utf8) + 1; // Write the size of the string to buffer buffer[index] = size & 0xff; buffer[index + 1] = (size >> 8) & 0xff; buffer[index + 2] = (size >> 16) & 0xff; buffer[index + 3] = (size >> 24) & 0xff; // Update index index = index + 4 + size - 1; // Write zero buffer[index++] = 0x00; return index;}
function serializeDBRef( buffer: Uint8Array, key: string, value: DBRef, index: number, depth: number, serializeFunctions: boolean, isArray?: boolean,) { // Write the type buffer[index++] = BSONData.OBJECT; // Number of written bytes const numberOfWrittenBytes = !isArray ? writeToBytes(buffer, key, index, Encoding.Utf8) : writeToBytes(buffer, key, index, Encoding.Ascii);
// Encode the name index += numberOfWrittenBytes; buffer[index++] = 0;
let startIndex = index; let output: DBRefLike = { $ref: value.collection, $id: value.oid, };
if (value.db != null) { output.$db = value.db; }
output = Object.assign(output, value.fields); const endIndex = serializeInto( buffer, output, false, index, depth + 1, serializeFunctions, );
// Calculate object size const size = endIndex - startIndex; // Write the size buffer[startIndex++] = size & 0xff; buffer[startIndex++] = (size >> 8) & 0xff; buffer[startIndex++] = (size >> 16) & 0xff; buffer[startIndex++] = (size >> 24) & 0xff; // Set index return endIndex;}
export function serializeInto( buffer: Uint8Array, object: Document, checkKeys = false, startingIndex = 0, depth = 0, serializeFunctions = false, ignoreUndefined = true, path: Document[] = [],): number { startingIndex = startingIndex || 0; path = path || [];
// Push the object to the path path.push(object);
// Start place to serialize into let index = startingIndex + 4;
// Special case isArray if (Array.isArray(object)) { // Get object keys for (let i = 0; i < object.length; i++) { const key = i.toString(); let value = object[i];
// Is there an override value if (value?.toBSON) { if (typeof value.toBSON !== "function") { throw new BSONTypeError("toBSON is not a function"); } value = value.toBSON(); }
if (typeof value === "string") { index = serializeString(buffer, key, value, index, true); } else if (typeof value === "number") { index = serializeNumber(buffer, key, value, index, true); } else if (typeof value === "bigint") { throw new BSONTypeError( "Unsupported type BigInt, please use Decimal128", ); } else if (typeof value === "boolean") { index = serializeBoolean(buffer, key, value, index, true); } else if (value instanceof Date) { index = serializeDate(buffer, key, value, index, true); } else if (value === undefined) { index = serializeNull(buffer, key, value, index, true); } else if (value === null) { index = serializeNull(buffer, key, value, index, true); } else if (value instanceof ObjectId) { index = serializeObjectId(buffer, key, value, index, true); } else if (value instanceof Uint8Array) { index = serializeBuffer(buffer, key, value, index, true); } else if (value instanceof RegExp) { index = serializeRegExp(buffer, key, value, index, true); } else if (value instanceof Decimal128) { index = serializeDecimal128(buffer, key, value, index, true); } else if (value instanceof Long || value instanceof Timestamp) { index = serializeLong(buffer, key, value, index, true); } else if (value instanceof Double) { index = serializeDouble(buffer, key, value, index, true); } else if (typeof value === "function" && serializeFunctions) { index = serializeFunction( buffer, key, value, index, checkKeys, depth, true, ); } else if (value instanceof Code) { index = serializeCode( buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, true, ); } else if (value instanceof Binary) { index = serializeBinary(buffer, key, value, index, true); } else if (value instanceof BSONSymbol) { index = serializeSymbol(buffer, key, value, index, true); } else if (value instanceof DBRef) { index = serializeDBRef( buffer, key, value, index, depth, serializeFunctions, true, ); } else if (value instanceof BSONRegExp) { index = serializeBSONRegExp(buffer, key, value, index, true); } else if (value instanceof Int32) { index = serializeInt32(buffer, key, value, index, true); } else if (value instanceof MinKey || value instanceof MaxKey) { index = serializeMinMax(buffer, key, value, index, true); } else if (value instanceof Object) { index = serializeObject( buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, true, path, ); } else { throw new BSONTypeError(`Unrecognized or invalid BSON Type: ${value}`); } } } else if (object instanceof Map) { const iterator = object.entries(); let done = false;
while (!done) { // Unpack the next entry const entry = iterator.next(); done = !!entry.done; // Are we done, then skip and terminate if (done) continue;
// Get the entry values const key = entry.value[0]; const value = entry.value[1];
// Check the type of the value const type = typeof value;
// Check the key and throw error if it's illegal if (typeof key === "string" && !ignoreKeys.has(key)) { if (key.match(regexp) != null) { // The BSON spec doesn't allow keys with null bytes because keys are // null-terminated. throw Error(`key ${key} must not contain null bytes`); }
if (checkKeys) { if (key.startsWith("$")) { throw Error(`key ${key} must not start with '$'`); } else if (~key.indexOf(".")) { throw Error(`key ${key} must not contain '.'`); } } }
if (type === "string") { index = serializeString(buffer, key, value, index); } else if (type === "number") { index = serializeNumber(buffer, key, value, index); } else if ( type === "bigint" || value instanceof BigInt64Array || value instanceof BigUint64Array ) { throw new BSONTypeError( "Unsupported type BigInt, please use Decimal128", ); } else if (type === "boolean") { index = serializeBoolean(buffer, key, value, index); } else if (value instanceof Date) { index = serializeDate(buffer, key, value, index); } else if ( value === null || (value === undefined && ignoreUndefined === false) ) { index = serializeNull(buffer, key, value, index); } else if (value instanceof ObjectId) { index = serializeObjectId(buffer, key, value, index); } else if (value instanceof Uint8Array) { index = serializeBuffer(buffer, key, value, index); } else if (value instanceof RegExp) { index = serializeRegExp(buffer, key, value, index); } else if (type === "object" && value instanceof Object) { index = serializeObject( buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, false, path, ); } else if (type === "object" && value instanceof Decimal128) { index = serializeDecimal128(buffer, key, value, index); } else if (value instanceof Long) { index = serializeLong(buffer, key, value, index); } else if (value instanceof Double) { index = serializeDouble(buffer, key, value, index); } else if (value instanceof Code) { index = serializeCode( buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, ); } else if (typeof value === "function" && serializeFunctions) { index = serializeFunction( buffer, key, value, index, checkKeys, depth, serializeFunctions, ); } else if (value instanceof Binary) { index = serializeBinary(buffer, key, value, index); } else if (value instanceof BSONSymbol) { index = serializeSymbol(buffer, key, value, index); } else if (value instanceof DBRef) { index = serializeDBRef( buffer, key, value, index, depth, serializeFunctions, ); } else if (value instanceof BSONRegExp) { index = serializeBSONRegExp(buffer, key, value, index); } else if (value instanceof Int32) { index = serializeInt32(buffer, key, value, index); } else if (value instanceof MinKey || value instanceof MaxKey) { index = serializeMinMax(buffer, key, value, index); } else { throw new BSONTypeError(`Unrecognized or invalid BSON TYPE: ${value}`); } } } else { // Did we provide a custom serialization method if (object.toBSON) { if (typeof object.toBSON !== "function") { throw new BSONTypeError("toBSON is not a function"); } object = object.toBSON(); if (object != null && typeof object !== "object") { throw new BSONTypeError("toBSON function did not return an object"); } }
// Iterate over all the keys for (const key in object) { let value = object[key]; // Is there an override value if (value?.toBSON) { if (typeof value.toBSON !== "function") { throw new BSONTypeError("toBSON is not a function"); } value = value.toBSON(); }
// Check the type of the value const type = typeof value;
// Check the key and throw error if it's illegal if (typeof key === "string" && !ignoreKeys.has(key)) { if (key.match(regexp) != null) { // The BSON spec doesn't allow keys with null bytes because keys are // null-terminated. throw Error(`key ${key} must not contain null bytes`); }
if (checkKeys) { if (key.startsWith("$")) { throw Error(`key ${key} must not start with '$'`); } else if (~key.indexOf(".")) { throw Error(`key ${key} must not contain '.'`); } } }
if (type === "string") { index = serializeString(buffer, key, value, index); } else if (type === "number") { index = serializeNumber(buffer, key, value, index); } else if (type === "bigint") { throw new BSONTypeError( "Unsupported type BigInt, please use Decimal128", ); } else if (type === "boolean") { index = serializeBoolean(buffer, key, value, index); } else if (value instanceof Date) { index = serializeDate(buffer, key, value, index); } else if (value === undefined) { if (ignoreUndefined === false) { index = serializeNull(buffer, key, value, index); } } else if (value === null) { index = serializeNull(buffer, key, value, index); } else if (value instanceof ObjectId) { index = serializeObjectId(buffer, key, value, index); } else if (value instanceof Uint8Array) { index = serializeBuffer(buffer, key, value, index); } else if (value instanceof RegExp) { index = serializeRegExp(buffer, key, value, index); } else if (type === "object" && value instanceof Decimal128) { index = serializeDecimal128(buffer, key, value, index); } else if (value instanceof Long || value instanceof Timestamp) { index = serializeLong(buffer, key, value, index); } else if (value instanceof Double) { index = serializeDouble(buffer, key, value, index); } else if (value instanceof Code) { index = serializeCode( buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, ); } else if (typeof value === "function" && serializeFunctions) { index = serializeFunction( buffer, key, value, index, checkKeys, depth, serializeFunctions, ); } else if (value instanceof Binary) { index = serializeBinary(buffer, key, value, index); } else if (value instanceof BSONSymbol) { index = serializeSymbol(buffer, key, value, index); } else if (value instanceof DBRef) { index = serializeDBRef( buffer, key, value, index, depth, serializeFunctions, ); } else if (value instanceof BSONRegExp) { index = serializeBSONRegExp(buffer, key, value, index); } else if (value instanceof Int32) { index = serializeInt32(buffer, key, value, index); } else if (value instanceof MinKey || value instanceof MaxKey) { index = serializeMinMax(buffer, key, value, index); } else if (value instanceof Object) { index = serializeObject( buffer, key, value, index, checkKeys, depth, serializeFunctions, ignoreUndefined, false, path, ); } else { throw new BSONTypeError(`Unrecognized or invalid BSON Type: ${value}`); } } }
// Remove the path path.pop();
// throw if index is out of bounds if (buffer.length < index) { throw new Error("Document exceeds max BSON size"); }
// Final padding byte for object buffer[index++] = 0x00;
// Final size const size = index - startingIndex; // Write the size of the object buffer[startingIndex++] = size & 0xff; buffer[startingIndex++] = (size >> 8) & 0xff; buffer[startingIndex++] = (size >> 16) & 0xff; buffer[startingIndex++] = (size >> 24) & 0xff; return index;}