More wrappers.

extension/background/emscriptif.js

@@ -26,15 +26,26 @@ var emsc = {
     amount_add: getEmsc('TALER_amount_add', 'void', ['number', 'number', 'number']),
     amount_subtract: getEmsc('TALER_amount_subtract', 'void', ['number', 'number', 'number']),
     amount_normalize: getEmsc('TALER_amount_normalize', 'void', ['number']),
-    amount_cmp: getEmsc('TALER_amount_cmp', 'number', ['number', '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']),
+    string_to_data: getEmsc('GNUNET_STRINGS_string_to_data', 'void', ['number', 'number', 'number', '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']),
     malloc: (size) => Module._malloc(size),
 };
+var SignaturePurpose;
+(function (SignaturePurpose) {
+})(SignaturePurpose || (SignaturePurpose = {}));
 class ArenaObject {
     constructor(arena) {
         this.nativePtr = 0;
@@ -72,6 +83,14 @@ class Amount extends ArenaObject {
             emsc.free(this.nativePtr);
         }
     }
+    toNbo(a) {
+        let x = new AmountNbo(null, a);
+        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);
     }
@@ -120,60 +139,151 @@ class Amount extends ArenaObject {
         emsc.amount_normalize(this.nativePtr);
     }
 }
-class SizedArenaObject extends ArenaObject {
+class PackedArenaObject extends ArenaObject {
+    constructor(init, a) {
+        super(a);
+        if (init === null || init === undefined) {
+            this.nativePtr = emscAlloc.malloc(this.size());
+        }
+        else {
+            this.nativePtr = init;
+        }
+    }
     encode() {
-        var d = emscAlloc.data_to_string_alloc(this.nativePtr, this.size);
+        var d = emscAlloc.data_to_string_alloc(this.nativePtr, this.size());
         var s = Module.Pointer_stringify(d);
         emsc.free(d);
         return s;
     }
+    decode(s) {
+        // We need to get the javascript string
+        // to the emscripten heap first.
+        // XXX: Does this work with multi-bytes code points?
+        let hstr = emscAlloc.malloc(s.length + 1);
+        Module.writeStringToMemory(s, hstr);
+        let res = emsc.string_to_data(hstr, s.length, this.nativePtr, this.size());
+        if (res < 1) {
+            throw { error: "wrong encoding" };
+        }
+    }
+    destroy() {
+        emsc.free(this.nativePtr);
+        this.nativePtr = 0;
+    }
+    hash() {
+        var x = new HashCode();
+        emsc.hash(this.nativePtr, this.size(), x.nativePtr);
+        return x;
+    }
 }
-class EddsaPrivateKey extends SizedArenaObject {
+class AmountNbo extends PackedArenaObject {
+    size() { return 24; }
+}
+class EddsaPrivateKey extends PackedArenaObject {
     static create(a) {
-        let k = new EddsaPrivateKey(a);
-        k.nativePtr = emscAlloc.eddsa_key_create();
-        return k;
-    }
-    get size() {
-        return 32;
-    }
-    destroy() {
-        // TODO
+        let p = emscAlloc.eddsa_key_create();
+        return new EddsaPrivateKey(p, a);
     }
+    size() { return 32; }
     getPublicKey() {
-        let pk = new EddsaPublicKey(this.arena);
-        pk.nativePtr = emscAlloc.eddsa_public_key_from_private(this.nativePtr);
-        return pk;
+        let p = emscAlloc.eddsa_public_key_from_private(this.nativePtr);
+        return new EddsaPublicKey(p, this.arena);
     }
 }
-class EddsaPublicKey extends SizedArenaObject {
-    destroy() {
-        // TODO
-    }
-    get size() {
-        return 32;
-    }
+class EddsaPublicKey extends PackedArenaObject {
+    size() { return 32; }
 }
 class RsaBlindingKey extends ArenaObject {
     destroy() {
         // TODO
     }
 }
-class HashCode extends ArenaObject {
-    destroy() {
-        // TODO
+class HashCode extends PackedArenaObject {
+    size() { return 64; }
+}
+class ByteArray extends PackedArenaObject {
+    constructor(desiredSize, init, a) {
+        super(init, a);
+        if (init === undefined || init === null) {
+            this.nativePtr = emscAlloc.malloc(desiredSize);
+        }
+        else {
+            this.nativePtr = init;
+        }
+        this.allocatedSize = desiredSize;
+    }
+    size() { return this.allocatedSize; }
+}
+class EccSignaturePurpose extends PackedArenaObject {
+    constructor(purpose, payload, a) {
+        this.payload = payload;
+        let p = emscAlloc.purpose_create(purpose, payload.nativePtr, payload.size());
+        super(p, a);
+    }
+    size() { return this.payload.size() + 8; }
+}
+class SignatureStruct {
+    constructor() {
+        this.members = {};
+    }
+    toPurpose(a) {
+        let totalSize = 0;
+        for (let f of this.fieldTypes()) {
+            let name = f[0];
+            let member = this.members[name];
+            if (!member) {
+                throw { error: "Member not set", key: name };
+            }
+            totalSize += this.members[name].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);
+        let x = new EccSignaturePurpose(this.purpose(), ba, a);
+        return x;
+    }
+    set(name, value) {
+        let typemap = {};
+        for (let f of this.fieldTypes()) {
+            typemap[f[0]] = f[1];
+        }
+        if (!(name in typemap)) {
+            throw { error: "Key not found", key: name };
+        }
+        if (!(value instanceof typemap[name])) {
+            throw { error: "Wrong type", key: name };
+        }
+        // TODO: check type!
+        this.members[name] = value;
     }
 }
-class ByteArray extends ArenaObject {
-    destroy() {
-        // TODO
+class WithdrawRequestPS extends SignatureStruct {
+    purpose() { return undefined; }
+    fieldTypes() {
+        return [
+            ["reserve_pub", EddsaPublicKey],
+            ["amount_with_fee", Amount],
+            ["withdraw_fee", Amount],
+            ["h_denomination_pub", HashCode],
+            ["h_coin_envelope", HashCode]];
     }
 }
 class RsaPublicKey extends ArenaObject {
     destroy() {
-        // TODO
+        emsc.rsa_public_key_free(this.nativePtr);
+        this.nativePtr = 0;
     }
 }
 function rsaBlind(hashCode, blindingKey, pkey, arena) {
-    return null;
+    let ptr = emscAlloc.malloc(PTR_SIZE);
+    let s = emscAlloc.rsa_blind(hashCode.nativePtr, blindingKey.nativePtr, pkey.nativePtr, ptr);
+    let res = new ByteArray(s, Module.getValue(ptr, '*'), arena);
+    return res;
 }

extension/background/emscriptif.ts

@@ -46,7 +46,25 @@ var emsc = {
                             ['number']),
   amount_cmp: getEmsc('TALER_amount_cmp',
                       'number',
-                      ['number', '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']),
+  string_to_data: getEmsc('GNUNET_STRINGS_string_to_data',
+                          'void',
+                          ['number', 'number', 'number', 'number'])
 };
 
 var emscAlloc = {
@@ -59,11 +77,22 @@ var emscAlloc = {
                                          'number',
                                          ['number']),
   data_to_string_alloc: getEmsc('GNUNET_STRINGS_data_to_string_alloc',
-                                         'number',
-                                         ['number', 'number']),
-  malloc: (size : number) => Module._malloc(size),
+                                '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']),
+  malloc: (size: number) => Module._malloc(size),
 };
 
+
+enum SignaturePurpose {
+}
+
+
 abstract class ArenaObject {
   nativePtr: number;
   arena: Arena;
@@ -114,6 +143,16 @@ class Amount extends ArenaObject {
     }
   }
 
+  toNbo(a?: Arena): AmountNbo {
+    let x = new AmountNbo(null, a);
+    emsc.amount_hton(x.nativePtr, this.nativePtr);
+    return x;
+  }
+
+  fromNbo(nbo: AmountNbo): void {
+    emsc.amount_ntoh(this.nativePtr, nbo.nativePtr);
+  }
+
   get value() {
     return emsc.get_value(this.nativePtr);
   }
@@ -172,42 +211,71 @@ class Amount extends ArenaObject {
 
 
 abstract class PackedArenaObject extends ArenaObject {
-  size: number;
+  abstract size(): number;
+
+  constructor(init?: number, a?: Arena) {
+    super(a);
+    if (init === null || init === undefined) {
+      this.nativePtr = emscAlloc.malloc(this.size());
+    } else {
+      this.nativePtr = init;
+    }
+  }
 
   encode(): string {
-    var d = emscAlloc.data_to_string_alloc(this.nativePtr, this.size);
+    var d = emscAlloc.data_to_string_alloc(this.nativePtr, this.size());
     var s = Module.Pointer_stringify(d);
     emsc.free(d);
     return s;
   }
+
+  decode(s: string) {
+    // We need to get the javascript string
+    // to the emscripten heap first.
+    // XXX: Does this work with multi-bytes code points?
+    let hstr = emscAlloc.malloc(s.length + 1);
+    Module.writeStringToMemory(s, hstr);
+    let res = emsc.string_to_data(hstr, s.length, this.nativePtr, this.size());
+    if (res < 1) {
+      throw {error: "wrong encoding"};
+    }
+  }
+
+  destroy() {
+    emsc.free(this.nativePtr);
+    this.nativePtr = 0;
+  }
+
+  hash(): HashCode {
+    var x = new HashCode();
+    emsc.hash(this.nativePtr, this.size(), x.nativePtr);
+    return x;
+  }
+}
+
+
+class AmountNbo extends PackedArenaObject {
+  size() { return 24; }
 }
 
 
 class EddsaPrivateKey extends PackedArenaObject {
   static create(a?: Arena): EddsaPrivateKey {
-    let k = new EddsaPrivateKey(a);
-    k.nativePtr = emscAlloc.eddsa_key_create();
-    return k;
+    let p = emscAlloc.eddsa_key_create();
+    return new EddsaPrivateKey(p, a);
   }
 
-  get size() { return 32; }
+  size() { return 32; }
 
   getPublicKey(): EddsaPublicKey {
-    let pk = new EddsaPublicKey(this.arena);
-    pk.nativePtr = emscAlloc.eddsa_public_key_from_private(this.nativePtr);
-    return pk;
+    let p = emscAlloc.eddsa_public_key_from_private(this.nativePtr);
+    return new EddsaPublicKey(p, this.arena);
   }
 }
 
 
 class EddsaPublicKey extends PackedArenaObject {
-  destroy() {
-    // TODO
-  }
-
-  get size() {
-    return 32;
-  }
+  size() { return 32; }
 }
 
 
@@ -218,32 +286,110 @@ class RsaBlindingKey extends ArenaObject {
 }
 
 
-class HashCode extends ArenaObject {
-  destroy() {
-    // TODO
-  }
+class HashCode extends PackedArenaObject {
+  size() { return 64; }
 }
 
 
 class ByteArray extends PackedArenaObject {
-  destroy() {
-    // TODO
+  private allocatedSize: number;
+  size() { return this.allocatedSize; }
+  constructor(desiredSize: number, init: number, a?: Arena) {
+    super(init, a);
+    if (init === undefined || init === null) {
+      this.nativePtr = emscAlloc.malloc(desiredSize);
+    } else {
+      this.nativePtr = init;
+    }
+    this.allocatedSize = desiredSize;
+  }
+}
+
+
+class EccSignaturePurpose extends PackedArenaObject {
+  size() { return this.payload.size() + 8; }
+  payload: PackedArenaObject;
+  constructor(purpose: SignaturePurpose, payload: PackedArenaObject, a?: Arena) {
+    this.payload = payload;
+    let p = emscAlloc.purpose_create(purpose, payload.nativePtr, payload.size());
+    super(p, a);
+  }
+}
+
+
+abstract class SignatureStruct {
+  abstract fieldTypes(): Array<any>;
+  abstract purpose(): SignaturePurpose;
+  private members: any = {};
+  toPurpose(a?: Arena): EccSignaturePurpose {
+    let totalSize = 0;
+    for (let f of this.fieldTypes()) {
+      let name = f[0];
+      let member = this.members[name];
+      if (!member) {
+        throw {error: "Member not set", key: name};
+      }
+      totalSize += this.members[name].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);
+    let x = new EccSignaturePurpose(this.purpose(), ba, a);
+    return x;
+  }
+  set(name: string, value: any) {
+    let typemap: any = {}
+    for (let f of this.fieldTypes()) {
+      typemap[f[0]] = f[1];
+    }
+    if (!(name in typemap)) {
+      throw {error: "Key not found", key: name};
+    }
+    if (!(value instanceof typemap[name])) {
+      throw {error: "Wrong type", key: name};
+    }
+    // TODO: check type!
+    this.members[name] = value;
+  }
+}
+
+
+class WithdrawRequestPS extends SignatureStruct {
+  purpose() { return undefined; }
+  fieldTypes() {
+    return [
+       ["reserve_pub", EddsaPublicKey],
+       ["amount_with_fee", Amount],
+       ["withdraw_fee", Amount],
+       ["h_denomination_pub", HashCode],
+       ["h_coin_envelope", HashCode]];
   }
 }
 
 
 class RsaPublicKey extends ArenaObject {
   destroy() {
-    // TODO
+    emsc.rsa_public_key_free(this.nativePtr);
+    this.nativePtr = 0;
   }
 }
 
 
 function rsaBlind(hashCode: HashCode,
                   blindingKey: RsaBlindingKey, 
-                  pkey: RsaPublicKey,
+                  pkey: EddsaPublicKey,
                   arena?: Arena): ByteArray
 {
-  return null;
+  let ptr = emscAlloc.malloc(PTR_SIZE);
+  let s = emscAlloc.rsa_blind(hashCode.nativePtr, blindingKey.nativePtr, pkey.nativePtr, ptr);
+  let res = new ByteArray(s, Module.getValue(ptr, '*'), arena);
+  return res;
 }