diff options
Diffstat (limited to 'node_modules/asn1.js/lib/asn1/decoders')
-rw-r--r-- | node_modules/asn1.js/lib/asn1/decoders/der.js | 324 | ||||
-rw-r--r-- | node_modules/asn1.js/lib/asn1/decoders/index.js | 4 | ||||
-rw-r--r-- | node_modules/asn1.js/lib/asn1/decoders/pem.js | 49 |
3 files changed, 0 insertions, 377 deletions
diff --git a/node_modules/asn1.js/lib/asn1/decoders/der.js b/node_modules/asn1.js/lib/asn1/decoders/der.js deleted file mode 100644 index 79a60acc2..000000000 --- a/node_modules/asn1.js/lib/asn1/decoders/der.js +++ /dev/null @@ -1,324 +0,0 @@ -var inherits = require('inherits'); - -var asn1 = require('../../asn1'); -var base = asn1.base; -var bignum = asn1.bignum; - -// Import DER constants -var der = asn1.constants.der; - -function DERDecoder(entity) { - this.enc = 'der'; - this.name = entity.name; - this.entity = entity; - - // Construct base tree - this.tree = new DERNode(); - this.tree._init(entity.body); -}; -module.exports = DERDecoder; - -DERDecoder.prototype.decode = function decode(data, options) { - if (!(data instanceof base.DecoderBuffer)) - data = new base.DecoderBuffer(data, options); - - return this.tree._decode(data, options); -}; - -// Tree methods - -function DERNode(parent) { - base.Node.call(this, 'der', parent); -} -inherits(DERNode, base.Node); - -DERNode.prototype._peekTag = function peekTag(buffer, tag, any) { - if (buffer.isEmpty()) - return false; - - var state = buffer.save(); - var decodedTag = derDecodeTag(buffer, 'Failed to peek tag: "' + tag + '"'); - if (buffer.isError(decodedTag)) - return decodedTag; - - buffer.restore(state); - - return decodedTag.tag === tag || decodedTag.tagStr === tag || - (decodedTag.tagStr + 'of') === tag || any; -}; - -DERNode.prototype._decodeTag = function decodeTag(buffer, tag, any) { - var decodedTag = derDecodeTag(buffer, - 'Failed to decode tag of "' + tag + '"'); - if (buffer.isError(decodedTag)) - return decodedTag; - - var len = derDecodeLen(buffer, - decodedTag.primitive, - 'Failed to get length of "' + tag + '"'); - - // Failure - if (buffer.isError(len)) - return len; - - if (!any && - decodedTag.tag !== tag && - decodedTag.tagStr !== tag && - decodedTag.tagStr + 'of' !== tag) { - return buffer.error('Failed to match tag: "' + tag + '"'); - } - - if (decodedTag.primitive || len !== null) - return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); - - // Indefinite length... find END tag - var state = buffer.save(); - var res = this._skipUntilEnd( - buffer, - 'Failed to skip indefinite length body: "' + this.tag + '"'); - if (buffer.isError(res)) - return res; - - len = buffer.offset - state.offset; - buffer.restore(state); - return buffer.skip(len, 'Failed to match body of: "' + tag + '"'); -}; - -DERNode.prototype._skipUntilEnd = function skipUntilEnd(buffer, fail) { - while (true) { - var tag = derDecodeTag(buffer, fail); - if (buffer.isError(tag)) - return tag; - var len = derDecodeLen(buffer, tag.primitive, fail); - if (buffer.isError(len)) - return len; - - var res; - if (tag.primitive || len !== null) - res = buffer.skip(len) - else - res = this._skipUntilEnd(buffer, fail); - - // Failure - if (buffer.isError(res)) - return res; - - if (tag.tagStr === 'end') - break; - } -}; - -DERNode.prototype._decodeList = function decodeList(buffer, tag, decoder, - options) { - var result = []; - while (!buffer.isEmpty()) { - var possibleEnd = this._peekTag(buffer, 'end'); - if (buffer.isError(possibleEnd)) - return possibleEnd; - - var res = decoder.decode(buffer, 'der', options); - if (buffer.isError(res) && possibleEnd) - break; - result.push(res); - } - return result; -}; - -DERNode.prototype._decodeStr = function decodeStr(buffer, tag) { - if (tag === 'bitstr') { - var unused = buffer.readUInt8(); - if (buffer.isError(unused)) - return unused; - return { unused: unused, data: buffer.raw() }; - } else if (tag === 'bmpstr') { - var raw = buffer.raw(); - if (raw.length % 2 === 1) - return buffer.error('Decoding of string type: bmpstr length mismatch'); - - var str = ''; - for (var i = 0; i < raw.length / 2; i++) { - str += String.fromCharCode(raw.readUInt16BE(i * 2)); - } - return str; - } else if (tag === 'numstr') { - var numstr = buffer.raw().toString('ascii'); - if (!this._isNumstr(numstr)) { - return buffer.error('Decoding of string type: ' + - 'numstr unsupported characters'); - } - return numstr; - } else if (tag === 'octstr') { - return buffer.raw(); - } else if (tag === 'objDesc') { - return buffer.raw(); - } else if (tag === 'printstr') { - var printstr = buffer.raw().toString('ascii'); - if (!this._isPrintstr(printstr)) { - return buffer.error('Decoding of string type: ' + - 'printstr unsupported characters'); - } - return printstr; - } else if (/str$/.test(tag)) { - return buffer.raw().toString(); - } else { - return buffer.error('Decoding of string type: ' + tag + ' unsupported'); - } -}; - -DERNode.prototype._decodeObjid = function decodeObjid(buffer, values, relative) { - var result; - var identifiers = []; - var ident = 0; - while (!buffer.isEmpty()) { - var subident = buffer.readUInt8(); - ident <<= 7; - ident |= subident & 0x7f; - if ((subident & 0x80) === 0) { - identifiers.push(ident); - ident = 0; - } - } - if (subident & 0x80) - identifiers.push(ident); - - var first = (identifiers[0] / 40) | 0; - var second = identifiers[0] % 40; - - if (relative) - result = identifiers; - else - result = [first, second].concat(identifiers.slice(1)); - - if (values) { - var tmp = values[result.join(' ')]; - if (tmp === undefined) - tmp = values[result.join('.')]; - if (tmp !== undefined) - result = tmp; - } - - return result; -}; - -DERNode.prototype._decodeTime = function decodeTime(buffer, tag) { - var str = buffer.raw().toString(); - if (tag === 'gentime') { - var year = str.slice(0, 4) | 0; - var mon = str.slice(4, 6) | 0; - var day = str.slice(6, 8) | 0; - var hour = str.slice(8, 10) | 0; - var min = str.slice(10, 12) | 0; - var sec = str.slice(12, 14) | 0; - } else if (tag === 'utctime') { - var year = str.slice(0, 2) | 0; - var mon = str.slice(2, 4) | 0; - var day = str.slice(4, 6) | 0; - var hour = str.slice(6, 8) | 0; - var min = str.slice(8, 10) | 0; - var sec = str.slice(10, 12) | 0; - if (year < 70) - year = 2000 + year; - else - year = 1900 + year; - } else { - return buffer.error('Decoding ' + tag + ' time is not supported yet'); - } - - return Date.UTC(year, mon - 1, day, hour, min, sec, 0); -}; - -DERNode.prototype._decodeNull = function decodeNull(buffer) { - return null; -}; - -DERNode.prototype._decodeBool = function decodeBool(buffer) { - var res = buffer.readUInt8(); - if (buffer.isError(res)) - return res; - else - return res !== 0; -}; - -DERNode.prototype._decodeInt = function decodeInt(buffer, values) { - // Bigint, return as it is (assume big endian) - var raw = buffer.raw(); - var res = new bignum(raw); - - if (values) - res = values[res.toString(10)] || res; - - return res; -}; - -DERNode.prototype._use = function use(entity, obj) { - if (typeof entity === 'function') - entity = entity(obj); - return entity._getDecoder('der').tree; -}; - -// Utility methods - -function derDecodeTag(buf, fail) { - var tag = buf.readUInt8(fail); - if (buf.isError(tag)) - return tag; - - var cls = der.tagClass[tag >> 6]; - var primitive = (tag & 0x20) === 0; - - // Multi-octet tag - load - if ((tag & 0x1f) === 0x1f) { - var oct = tag; - tag = 0; - while ((oct & 0x80) === 0x80) { - oct = buf.readUInt8(fail); - if (buf.isError(oct)) - return oct; - - tag <<= 7; - tag |= oct & 0x7f; - } - } else { - tag &= 0x1f; - } - var tagStr = der.tag[tag]; - - return { - cls: cls, - primitive: primitive, - tag: tag, - tagStr: tagStr - }; -} - -function derDecodeLen(buf, primitive, fail) { - var len = buf.readUInt8(fail); - if (buf.isError(len)) - return len; - - // Indefinite form - if (!primitive && len === 0x80) - return null; - - // Definite form - if ((len & 0x80) === 0) { - // Short form - return len; - } - - // Long form - var num = len & 0x7f; - if (num > 4) - return buf.error('length octect is too long'); - - len = 0; - for (var i = 0; i < num; i++) { - len <<= 8; - var j = buf.readUInt8(fail); - if (buf.isError(j)) - return j; - len |= j; - } - - return len; -} diff --git a/node_modules/asn1.js/lib/asn1/decoders/index.js b/node_modules/asn1.js/lib/asn1/decoders/index.js deleted file mode 100644 index e2583aa8a..000000000 --- a/node_modules/asn1.js/lib/asn1/decoders/index.js +++ /dev/null @@ -1,4 +0,0 @@ -var decoders = exports; - -decoders.der = require('./der'); -decoders.pem = require('./pem'); diff --git a/node_modules/asn1.js/lib/asn1/decoders/pem.js b/node_modules/asn1.js/lib/asn1/decoders/pem.js deleted file mode 100644 index 301059cab..000000000 --- a/node_modules/asn1.js/lib/asn1/decoders/pem.js +++ /dev/null @@ -1,49 +0,0 @@ -var inherits = require('inherits'); -var Buffer = require('buffer').Buffer; - -var DERDecoder = require('./der'); - -function PEMDecoder(entity) { - DERDecoder.call(this, entity); - this.enc = 'pem'; -}; -inherits(PEMDecoder, DERDecoder); -module.exports = PEMDecoder; - -PEMDecoder.prototype.decode = function decode(data, options) { - var lines = data.toString().split(/[\r\n]+/g); - - var label = options.label.toUpperCase(); - - var re = /^-----(BEGIN|END) ([^-]+)-----$/; - var start = -1; - var end = -1; - for (var i = 0; i < lines.length; i++) { - var match = lines[i].match(re); - if (match === null) - continue; - - if (match[2] !== label) - continue; - - if (start === -1) { - if (match[1] !== 'BEGIN') - break; - start = i; - } else { - if (match[1] !== 'END') - break; - end = i; - break; - } - } - if (start === -1 || end === -1) - throw new Error('PEM section not found for: ' + label); - - var base64 = lines.slice(start + 1, end).join(''); - // Remove excessive symbols - base64.replace(/[^a-z0-9\+\/=]+/gi, ''); - - var input = new Buffer(base64, 'base64'); - return DERDecoder.prototype.decode.call(this, input, options); -}; |