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Diffstat (limited to 'extension/background/emscriptif.js')
| -rw-r--r-- | extension/background/emscriptif.js | 643 |
1 files changed, 0 insertions, 643 deletions
diff --git a/extension/background/emscriptif.js b/extension/background/emscriptif.js deleted file mode 100644 index 58b14b41c..000000000 --- a/extension/background/emscriptif.js +++ /dev/null @@ -1,643 +0,0 @@ -/* - This file is part of TALER - (C) 2015 GNUnet e.V. - - TALER is free software; you can redistribute it and/or modify it under the - terms of the GNU General Public License as published by the Free Software - Foundation; either version 3, or (at your option) any later version. - - TALER is distributed in the hope that it will be useful, but WITHOUT ANY - WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR - A PARTICULAR PURPOSE. See the GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along with - TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/> - */ -/** - * High-level interface to emscripten-compiled modules used - * by the wallet. - * @module EmscriptIf - * @author Florian Dold - */ -"use strict"; -// Size of a native pointer. -const PTR_SIZE = 4; -const GNUNET_OK = 1; -const GNUNET_YES = 1; -const GNUNET_NO = 0; -const GNUNET_SYSERR = -1; -let getEmsc = (...args) => Module.cwrap.apply(null, args); -var emsc = { - free: (ptr) => Module._free(ptr), - get_value: getEmsc('TALER_WR_get_value', 'number', ['number']), - get_fraction: getEmsc('TALER_WR_get_fraction', 'number', ['number']), - get_currency: getEmsc('TALER_WR_get_currency', 'string', ['number']), - amount_add: getEmsc('TALER_amount_add', 'number', ['number', 'number', 'number']), - amount_subtract: getEmsc('TALER_amount_subtract', 'number', ['number', 'number', 'number']), - amount_normalize: getEmsc('TALER_amount_normalize', 'void', ['number']), - amount_get_zero: getEmsc('TALER_amount_get_zero', 'number', ['string', 'number']), - amount_cmp: getEmsc('TALER_amount_cmp', 'number', ['number', 'number']), - amount_hton: getEmsc('TALER_amount_hton', 'void', ['number', 'number']), - amount_ntoh: getEmsc('TALER_amount_ntoh', 'void', ['number', 'number']), - hash: getEmsc('GNUNET_CRYPTO_hash', 'void', ['number', 'number', 'number']), - memmove: getEmsc('memmove', 'number', ['number', 'number', 'number']), - rsa_public_key_free: getEmsc('GNUNET_CRYPTO_rsa_public_key_free', 'void', ['number']), - rsa_signature_free: getEmsc('GNUNET_CRYPTO_rsa_signature_free', 'void', ['number']), - string_to_data: getEmsc('GNUNET_STRINGS_string_to_data', 'number', ['number', 'number', 'number', 'number']), - eddsa_sign: getEmsc('GNUNET_CRYPTO_eddsa_sign', 'number', ['number', 'number', 'number']), - hash_create_random: getEmsc('GNUNET_CRYPTO_hash_create_random', 'void', ['number', 'number']), - rsa_blinding_key_destroy: getEmsc('GNUNET_CRYPTO_rsa_blinding_key_free', 'void', ['number']), -}; -var emscAlloc = { - get_amount: getEmsc('TALER_WRALL_get_amount', 'number', ['number', 'number', 'number', 'string']), - eddsa_key_create: getEmsc('GNUNET_CRYPTO_eddsa_key_create', 'number', []), - eddsa_public_key_from_private: getEmsc('TALER_WRALL_eddsa_public_key_from_private', 'number', ['number']), - data_to_string_alloc: getEmsc('GNUNET_STRINGS_data_to_string_alloc', 'number', ['number', 'number']), - purpose_create: getEmsc('TALER_WRALL_purpose_create', 'number', ['number', 'number', 'number']), - rsa_blind: getEmsc('GNUNET_CRYPTO_rsa_blind', 'number', ['number', 'number', 'number', 'number']), - rsa_blinding_key_create: getEmsc('GNUNET_CRYPTO_rsa_blinding_key_create', 'number', ['number']), - rsa_blinding_key_encode: getEmsc('GNUNET_CRYPTO_rsa_blinding_key_encode', 'number', ['number', 'number']), - rsa_signature_encode: getEmsc('GNUNET_CRYPTO_rsa_signature_encode', 'number', ['number', 'number']), - rsa_blinding_key_decode: getEmsc('GNUNET_CRYPTO_rsa_blinding_key_decode', 'number', ['number', 'number']), - rsa_public_key_decode: getEmsc('GNUNET_CRYPTO_rsa_public_key_decode', 'number', ['number', 'number']), - rsa_signature_decode: getEmsc('GNUNET_CRYPTO_rsa_signature_decode', 'number', ['number', 'number']), - rsa_public_key_encode: getEmsc('GNUNET_CRYPTO_rsa_public_key_encode', 'number', ['number', 'number']), - rsa_unblind: getEmsc('GNUNET_CRYPTO_rsa_unblind', 'number', ['number', 'number', 'number']), - malloc: (size) => Module._malloc(size), -}; -var SignaturePurpose; -(function (SignaturePurpose) { - SignaturePurpose[SignaturePurpose["RESERVE_WITHDRAW"] = 1200] = "RESERVE_WITHDRAW"; - SignaturePurpose[SignaturePurpose["WALLET_COIN_DEPOSIT"] = 1201] = "WALLET_COIN_DEPOSIT"; -})(SignaturePurpose || (SignaturePurpose = {})); -var RandomQuality; -(function (RandomQuality) { - RandomQuality[RandomQuality["WEAK"] = 0] = "WEAK"; - RandomQuality[RandomQuality["STRONG"] = 1] = "STRONG"; - RandomQuality[RandomQuality["NONCE"] = 2] = "NONCE"; -})(RandomQuality || (RandomQuality = {})); -class ArenaObject { - constructor(arena) { - this.nativePtr = null; - if (!arena) { - if (arenaStack.length == 0) { - throw Error("No arena available"); - } - arena = arenaStack[arenaStack.length - 1]; - } - arena.put(this); - this.arena = arena; - } - getNative() { - // We want to allow latent allocation - // of native wrappers, but we never want to - // pass 'undefined' to emscripten. - if (this._nativePtr === undefined) { - throw Error("Native pointer not initialized"); - } - return this._nativePtr; - } - free() { - if (this.nativePtr !== undefined) { - emsc.free(this.nativePtr); - this.nativePtr = undefined; - } - } - alloc(size) { - if (this.nativePtr !== undefined) { - throw Error("Double allocation"); - } - this.nativePtr = emscAlloc.malloc(size); - } - setNative(n) { - if (n === undefined) { - throw Error("Native pointer must be a number or null"); - } - this._nativePtr = n; - } - set nativePtr(v) { - this.setNative(v); - } - get nativePtr() { - return this.getNative(); - } -} -class DefaultArena { - constructor() { - this.heap = []; - } - put(obj) { - this.heap.push(obj); - } - destroy() { - for (let obj of this.heap) { - obj.destroy(); - } - this.heap = []; - } -} -/** - * Arena that destroys all its objects once control has returned to the message - * loop and a small interval has passed. - */ -class SyncArena extends DefaultArena { - constructor() { - super(); - let me = this; - this.timer = new Worker('background/timerThread.js'); - this.timer.onmessage = () => { - this.destroy(); - }; - //this.timer.postMessage({interval: 50}); - } - destroy() { - super.destroy(); - } -} -let arenaStack = []; -arenaStack.push(new SyncArena()); -class Amount extends ArenaObject { - constructor(args, arena) { - super(arena); - if (args) { - this.nativePtr = emscAlloc.get_amount(args.value, 0, args.fraction, args.currency); - } - else { - this.nativePtr = emscAlloc.get_amount(0, 0, 0, ""); - } - } - destroy() { - if (this.nativePtr != 0) { - emsc.free(this.nativePtr); - } - } - static getZero(currency, a) { - let am = new Amount(null, a); - let r = emsc.amount_get_zero(currency, am.getNative()); - if (r != GNUNET_OK) { - throw Error("invalid currency"); - } - return am; - } - toNbo(a) { - let x = new AmountNbo(a); - x.alloc(); - emsc.amount_hton(x.nativePtr, this.nativePtr); - return x; - } - fromNbo(nbo) { - emsc.amount_ntoh(this.nativePtr, nbo.nativePtr); - } - get value() { - return emsc.get_value(this.nativePtr); - } - get fraction() { - return emsc.get_fraction(this.nativePtr); - } - get currency() { - return emsc.get_currency(this.nativePtr); - } - toJson() { - return { - value: emsc.get_value(this.nativePtr), - fraction: emsc.get_fraction(this.nativePtr), - currency: emsc.get_currency(this.nativePtr) - }; - } - /** - * Add an amount to this amount. - */ - add(a) { - let res = emsc.amount_add(this.nativePtr, a.nativePtr, this.nativePtr); - if (res < 1) { - // Overflow - return false; - } - return true; - } - /** - * Perform saturating subtraction on amounts. - */ - sub(a) { - // this = this - a - let res = emsc.amount_subtract(this.nativePtr, this.nativePtr, a.nativePtr); - if (res == 0) { - // Underflow - return false; - } - if (res > 0) { - return true; - } - throw Error("Incompatible currencies"); - } - cmp(a) { - return emsc.amount_cmp(this.nativePtr, a.nativePtr); - } - normalize() { - emsc.amount_normalize(this.nativePtr); - } -} -class PackedArenaObject extends ArenaObject { - constructor(a) { - super(a); - } - toCrock() { - var d = emscAlloc.data_to_string_alloc(this.nativePtr, this.size()); - var s = Module.Pointer_stringify(d); - emsc.free(d); - return s; - } - toJson() { - // Per default, the json encoding of - // packed arena objects is just the crockford encoding. - // Subclasses typically want to override this. - return this.toCrock(); - } - loadCrock(s) { - this.alloc(); - // We need to get the javascript string - // to the emscripten heap first. - let buf = ByteArray.fromString(s); - let res = emsc.string_to_data(buf.nativePtr, s.length, this.nativePtr, this.size()); - buf.destroy(); - if (res < 1) { - throw { error: "wrong encoding" }; - } - } - alloc() { - if (this.nativePtr === null) { - this.nativePtr = emscAlloc.malloc(this.size()); - } - } - destroy() { - emsc.free(this.nativePtr); - this.nativePtr = 0; - } - hash() { - var x = new HashCode(); - x.alloc(); - emsc.hash(this.nativePtr, this.size(), x.nativePtr); - return x; - } - hexdump() { - let bytes = []; - for (let i = 0; i < this.size(); i++) { - let b = Module.getValue(this.getNative() + i, "i8"); - b = (b + 256) % 256; - bytes.push("0".concat(b.toString(16)).slice(-2)); - } - let lines = []; - for (let i = 0; i < bytes.length; i += 8) { - lines.push(bytes.slice(i, i + 8).join(",")); - } - return lines.join("\n"); - } -} -class AmountNbo extends PackedArenaObject { - size() { - return 24; - } - toJson() { - let a = new DefaultArena(); - let am = new Amount(null, a); - am.fromNbo(this); - let json = am.toJson(); - a.destroy(); - return json; - } -} -class EddsaPrivateKey extends PackedArenaObject { - static create(a) { - let obj = new EddsaPrivateKey(a); - obj.nativePtr = emscAlloc.eddsa_key_create(); - return obj; - } - size() { - return 32; - } - getPublicKey(a) { - let obj = new EddsaPublicKey(a); - obj.nativePtr = emscAlloc.eddsa_public_key_from_private(this.nativePtr); - return obj; - } -} -mixinStatic(EddsaPrivateKey, fromCrock); -function fromCrock(s) { - let x = new this(); - x.alloc(); - x.loadCrock(s); - return x; -} -function mixin(obj, method, name) { - if (!name) { - name = method.name; - } - if (!name) { - throw Error("Mixin needs a name."); - } - obj.prototype[method.name] = method; -} -function mixinStatic(obj, method, name) { - if (!name) { - name = method.name; - } - if (!name) { - throw Error("Mixin needs a name."); - } - obj[method.name] = method; -} -class EddsaPublicKey extends PackedArenaObject { - size() { - return 32; - } -} -mixinStatic(EddsaPublicKey, fromCrock); -function makeFromCrock(decodeFn) { - function fromCrock(s, a) { - let obj = new this(a); - let buf = ByteArray.fromCrock(s); - obj.setNative(decodeFn(buf.getNative(), buf.size())); - buf.destroy(); - return obj; - } - return fromCrock; -} -function makeToCrock(encodeFn) { - function toCrock() { - let ptr = emscAlloc.malloc(PTR_SIZE); - let size = emscAlloc.rsa_blinding_key_encode(this.nativePtr, ptr); - let res = new ByteArray(size, Module.getValue(ptr, '*')); - let s = res.toCrock(); - emsc.free(ptr); - res.destroy(); - return s; - } - return toCrock; -} -class RsaBlindingKey extends ArenaObject { - constructor(...args) { - super(...args); - this.toCrock = makeToCrock(emscAlloc.rsa_blinding_key_encode); - } - static create(len, a) { - let o = new RsaBlindingKey(a); - o.nativePtr = emscAlloc.rsa_blinding_key_create(len); - return o; - } - destroy() { - // TODO - } -} -mixinStatic(RsaBlindingKey, makeFromCrock(emscAlloc.rsa_blinding_key_decode)); -class HashCode extends PackedArenaObject { - size() { - return 64; - } - random(qualStr) { - let qual; - switch (qualStr) { - case "weak": - qual = RandomQuality.WEAK; - break; - case "strong": - case null: - case undefined: - qual = RandomQuality.STRONG; - break; - case "nonce": - qual = RandomQuality.NONCE; - break; - default: - throw Error(format("unknown crypto quality: {0}", qual)); - } - this.alloc(); - emsc.hash_create_random(qual, this.nativePtr); - } -} -mixinStatic(HashCode, fromCrock); -class ByteArray extends PackedArenaObject { - constructor(desiredSize, init, a) { - super(a); - if (init === undefined || init === null) { - this.nativePtr = emscAlloc.malloc(desiredSize); - } - else { - this.nativePtr = init; - } - this.allocatedSize = desiredSize; - } - size() { - return this.allocatedSize; - } - static fromString(s, a) { - let hstr = emscAlloc.malloc(s.length + 1); - Module.writeStringToMemory(s, hstr); - return new ByteArray(s.length, hstr, a); - } - static fromCrock(s, a) { - let hstr = emscAlloc.malloc(s.length + 1); - Module.writeStringToMemory(s, hstr); - let decodedLen = Math.floor((s.length * 5) / 8); - let ba = new ByteArray(decodedLen, null, a); - let res = emsc.string_to_data(hstr, s.length, ba.nativePtr, decodedLen); - emsc.free(hstr); - if (res != GNUNET_OK) { - throw Error("decoding failed"); - } - return ba; - } -} -class EccSignaturePurpose extends PackedArenaObject { - constructor(purpose, payload, a) { - super(a); - this.nativePtr = emscAlloc.purpose_create(purpose, payload.nativePtr, payload.size()); - this.payloadSize = payload.size(); - } - size() { - return this.payloadSize + 8; - } -} -class SignatureStruct { - constructor(x) { - this.members = {}; - for (let k in x) { - this.set(k, x[k]); - } - } - toPurpose(a) { - let totalSize = 0; - for (let f of this.fieldTypes()) { - let name = f[0]; - let member = this.members[name]; - if (!member) { - throw Error(format("Member {0} not set", name)); - } - totalSize += member.size(); - } - let buf = emscAlloc.malloc(totalSize); - let ptr = buf; - for (let f of this.fieldTypes()) { - let name = f[0]; - let member = this.members[name]; - let size = member.size(); - emsc.memmove(ptr, member.nativePtr, size); - ptr += size; - } - let ba = new ByteArray(totalSize, buf, a); - return new EccSignaturePurpose(this.purpose(), ba); - } - toJson() { - let res = {}; - for (let f of this.fieldTypes()) { - let name = f[0]; - let member = this.members[name]; - if (!member) { - throw Error(format("Member {0} not set", name)); - } - res[name] = member.toJson(); - } - res["purpose"] = this.purpose(); - return res; - } - set(name, value) { - let typemap = {}; - for (let f of this.fieldTypes()) { - typemap[f[0]] = f[1]; - } - if (!(name in typemap)) { - throw Error(format("Key {0} not found", name)); - } - if (!(value instanceof typemap[name])) { - throw Error(format("Wrong type for {0}", name)); - } - this.members[name] = value; - } -} -class WithdrawRequestPS extends SignatureStruct { - constructor(w) { - super(w); - } - purpose() { - return SignaturePurpose.RESERVE_WITHDRAW; - } - fieldTypes() { - return [ - ["reserve_pub", EddsaPublicKey], - ["amount_with_fee", AmountNbo], - ["withdraw_fee", AmountNbo], - ["h_denomination_pub", HashCode], - ["h_coin_envelope", HashCode] - ]; - } -} -class AbsoluteTimeNbo extends PackedArenaObject { - static fromTalerString(s) { - let x = new AbsoluteTimeNbo(); - x.alloc(); - let r = /Date\(([0-9]+)\)/; - let m = r.exec(s); - if (m.length != 2) { - throw Error(); - } - let n = parseInt(m[1]) * 1000000; - // XXX: This only works up to 54 bit numbers. - set64(x.getNative(), n); - return x; - } - size() { - return 8; - } -} -// XXX: This only works up to 54 bit numbers. -function set64(p, n) { - for (let i = 0; i < 8; ++i) { - Module.setValue(p + (7 - i), n & 0xFF, "i8"); - n = Math.floor(n / 256); - } -} -class UInt64 extends PackedArenaObject { - static fromNumber(n) { - let x = new UInt64(); - x.alloc(); - set64(x.getNative(), n); - return x; - } - size() { - return 8; - } -} -class DepositRequestPS extends SignatureStruct { - constructor(w) { - super(w); - } - purpose() { - return SignaturePurpose.WALLET_COIN_DEPOSIT; - } - fieldTypes() { - return [ - ["h_contract", HashCode], - ["h_wire", HashCode], - ["timestamp", AbsoluteTimeNbo], - ["refund_deadline", AbsoluteTimeNbo], - ["transaction_id", UInt64], - ["amount_with_fee", AmountNbo], - ["deposit_fee", AmountNbo], - ["merchant", EddsaPublicKey], - ["coin_pub", EddsaPublicKey], - ]; - } -} -function makeEncode(encodeFn) { - function encode(arena) { - let ptr = emscAlloc.malloc(PTR_SIZE); - let len = encodeFn(this.getNative(), ptr); - let res = new ByteArray(len, null, arena); - res.setNative(Module.getValue(ptr, '*')); - emsc.free(ptr); - return res; - } - return encode; -} -class RsaPublicKey extends ArenaObject { - toCrock() { - return this.encode().toCrock(); - } - destroy() { - emsc.rsa_public_key_free(this.nativePtr); - this.nativePtr = 0; - } -} -mixinStatic(RsaPublicKey, makeFromCrock(emscAlloc.rsa_public_key_decode)); -mixin(RsaPublicKey, makeEncode(emscAlloc.rsa_public_key_encode)); -class EddsaSignature extends PackedArenaObject { - size() { - return 64; - } -} -class RsaSignature extends ArenaObject { - destroy() { - emsc.rsa_signature_free(this.getNative()); - this.setNative(0); - } -} -mixinStatic(RsaSignature, makeFromCrock(emscAlloc.rsa_signature_decode)); -mixin(RsaSignature, makeEncode(emscAlloc.rsa_signature_encode)); -function rsaBlind(hashCode, blindingKey, pkey, arena) { - let ptr = emscAlloc.malloc(PTR_SIZE); - let s = emscAlloc.rsa_blind(hashCode.nativePtr, blindingKey.nativePtr, pkey.nativePtr, ptr); - return new ByteArray(s, Module.getValue(ptr, '*'), arena); -} -function eddsaSign(purpose, priv, a) { - let sig = new EddsaSignature(a); - sig.alloc(); - let res = emsc.eddsa_sign(priv.nativePtr, purpose.nativePtr, sig.nativePtr); - if (res < 1) { - throw Error("EdDSA signing failed"); - } - return sig; -} -function rsaUnblind(sig, bk, pk, a) { - let x = new RsaSignature(a); - x.nativePtr = emscAlloc.rsa_unblind(sig.nativePtr, bk.nativePtr, pk.nativePtr); - return x; -} |