1 files changed, 0 insertions, 235 deletions
diff --git a/www/lib/localforage/src/utils/serializer.js b/www/lib/localforage/src/utils/serializer.js
deleted file mode 100644
index ddeed301..00000000
--- a/www/lib/localforage/src/utils/serializer.js
+++ /dev/null
@@ -1,235 +0,0 @@
-import createBlob from './createBlob';
-
-// Sadly, the best way to save binary data in WebSQL/localStorage is serializing
-// it to Base64, so this is how we store it to prevent very strange errors with less
-// verbose ways of binary <-> string data storage.
-var BASE_CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
-
-var BLOB_TYPE_PREFIX = '~~local_forage_type~';
-var BLOB_TYPE_PREFIX_REGEX = /^~~local_forage_type~([^~]+)~/;
-
-var SERIALIZED_MARKER = '__lfsc__:';
-var SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER.length;
-
-// OMG the serializations!
-var TYPE_ARRAYBUFFER = 'arbf';
-var TYPE_BLOB = 'blob';
-var TYPE_INT8ARRAY = 'si08';
-var TYPE_UINT8ARRAY = 'ui08';
-var TYPE_UINT8CLAMPEDARRAY = 'uic8';
-var TYPE_INT16ARRAY = 'si16';
-var TYPE_INT32ARRAY = 'si32';
-var TYPE_UINT16ARRAY = 'ur16';
-var TYPE_UINT32ARRAY = 'ui32';
-var TYPE_FLOAT32ARRAY = 'fl32';
-var TYPE_FLOAT64ARRAY = 'fl64';
-var TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH +
-    TYPE_ARRAYBUFFER.length;
-
-var toString = Object.prototype.toString;
-
-function stringToBuffer(serializedString) {
-    // Fill the string into a ArrayBuffer.
-    var bufferLength = serializedString.length * 0.75;
-    var len = serializedString.length;
-    var i;
-    var p = 0;
-    var encoded1, encoded2, encoded3, encoded4;
-
-    if (serializedString[serializedString.length - 1] === '=') {
-        bufferLength--;
-        if (serializedString[serializedString.length - 2] === '=') {
-            bufferLength--;
-        }
-    }
-
-    var buffer = new ArrayBuffer(bufferLength);
-    var bytes = new Uint8Array(buffer);
-
-    for (i = 0; i < len; i += 4) {
-        encoded1 = BASE_CHARS.indexOf(serializedString[i]);
-        encoded2 = BASE_CHARS.indexOf(serializedString[i + 1]);
-        encoded3 = BASE_CHARS.indexOf(serializedString[i + 2]);
-        encoded4 = BASE_CHARS.indexOf(serializedString[i + 3]);
-
-        /*jslint bitwise: true */
-        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
-        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
-        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
-    }
-    return buffer;
-}
-
-// Converts a buffer to a string to store, serialized, in the backend
-// storage library.
-function bufferToString(buffer) {
-    // base64-arraybuffer
-    var bytes = new Uint8Array(buffer);
-    var base64String = '';
-    var i;
-
-    for (i = 0; i < bytes.length; i += 3) {
-        /*jslint bitwise: true */
-        base64String += BASE_CHARS[bytes[i] >> 2];
-        base64String += BASE_CHARS[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
-        base64String += BASE_CHARS[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
-        base64String += BASE_CHARS[bytes[i + 2] & 63];
-    }
-
-    if ((bytes.length % 3) === 2) {
-        base64String = base64String.substring(0, base64String.length - 1) + '=';
-    } else if (bytes.length % 3 === 1) {
-        base64String = base64String.substring(0, base64String.length - 2) + '==';
-    }
-
-    return base64String;
-}
-
-// Serialize a value, afterwards executing a callback (which usually
-// instructs the `setItem()` callback/promise to be executed). This is how
-// we store binary data with localStorage.
-function serialize(value, callback) {
-    var valueType = '';
-    if (value) {
-        valueType = toString.call(value);
-    }
-
-    // Cannot use `value instanceof ArrayBuffer` or such here, as these
-    // checks fail when running the tests using casper.js...
-    //
-    // TODO: See why those tests fail and use a better solution.
-    if (value && (valueType === '[object ArrayBuffer]' ||
-        value.buffer &&
-        toString.call(value.buffer) === '[object ArrayBuffer]')) {
-        // Convert binary arrays to a string and prefix the string with
-        // a special marker.
-        var buffer;
-        var marker = SERIALIZED_MARKER;
-
-        if (value instanceof ArrayBuffer) {
-            buffer = value;
-            marker += TYPE_ARRAYBUFFER;
-        } else {
-            buffer = value.buffer;
-
-            if (valueType === '[object Int8Array]') {
-                marker += TYPE_INT8ARRAY;
-            } else if (valueType === '[object Uint8Array]') {
-                marker += TYPE_UINT8ARRAY;
-            } else if (valueType === '[object Uint8ClampedArray]') {
-                marker += TYPE_UINT8CLAMPEDARRAY;
-            } else if (valueType === '[object Int16Array]') {
-                marker += TYPE_INT16ARRAY;
-            } else if (valueType === '[object Uint16Array]') {
-                marker += TYPE_UINT16ARRAY;
-            } else if (valueType === '[object Int32Array]') {
-                marker += TYPE_INT32ARRAY;
-            } else if (valueType === '[object Uint32Array]') {
-                marker += TYPE_UINT32ARRAY;
-            } else if (valueType === '[object Float32Array]') {
-                marker += TYPE_FLOAT32ARRAY;
-            } else if (valueType === '[object Float64Array]') {
-                marker += TYPE_FLOAT64ARRAY;
-            } else {
-                callback(new Error('Failed to get type for BinaryArray'));
-            }
-        }
-
-        callback(marker + bufferToString(buffer));
-    } else if (valueType === '[object Blob]') {
-        // Conver the blob to a binaryArray and then to a string.
-        var fileReader = new FileReader();
-
-        fileReader.onload = function() {
-            // Backwards-compatible prefix for the blob type.
-            var str = BLOB_TYPE_PREFIX + value.type + '~' +
-                bufferToString(this.result);
-
-            callback(SERIALIZED_MARKER + TYPE_BLOB + str);
-        };
-
-        fileReader.readAsArrayBuffer(value);
-    } else {
-        try {
-            callback(JSON.stringify(value));
-        } catch (e) {
-            console.error("Couldn't convert value into a JSON string: ",
-                value);
-
-            callback(null, e);
-        }
-    }
-}
-
-// Deserialize data we've inserted into a value column/field. We place
-// special markers into our strings to mark them as encoded; this isn't
-// as nice as a meta field, but it's the only sane thing we can do whilst
-// keeping localStorage support intact.
-//
-// Oftentimes this will just deserialize JSON content, but if we have a
-// special marker (SERIALIZED_MARKER, defined above), we will extract
-// some kind of arraybuffer/binary data/typed array out of the string.
-function deserialize(value) {
-    // If we haven't marked this string as being specially serialized (i.e.
-    // something other than serialized JSON), we can just return it and be
-    // done with it.
-    if (value.substring(0,
-            SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {
-        return JSON.parse(value);
-    }
-
-    // The following code deals with deserializing some kind of Blob or
-    // TypedArray. First we separate out the type of data we're dealing
-    // with from the data itself.
-    var serializedString = value.substring(TYPE_SERIALIZED_MARKER_LENGTH);
-    var type = value.substring(SERIALIZED_MARKER_LENGTH,
-        TYPE_SERIALIZED_MARKER_LENGTH);
-
-    var blobType;
-    // Backwards-compatible blob type serialization strategy.
-    // DBs created with older versions of localForage will simply not have the blob type.
-    if (type === TYPE_BLOB && BLOB_TYPE_PREFIX_REGEX.test(serializedString)) {
-        var matcher = serializedString.match(BLOB_TYPE_PREFIX_REGEX);
-        blobType = matcher[1];
-        serializedString = serializedString.substring(matcher[0].length);
-    }
-    var buffer = stringToBuffer(serializedString);
-
-    // Return the right type based on the code/type set during
-    // serialization.
-    switch (type) {
-        case TYPE_ARRAYBUFFER:
-            return buffer;
-        case TYPE_BLOB:
-            return createBlob([buffer], {type: blobType});
-        case TYPE_INT8ARRAY:
-            return new Int8Array(buffer);
-        case TYPE_UINT8ARRAY:
-            return new Uint8Array(buffer);
-        case TYPE_UINT8CLAMPEDARRAY:
-            return new Uint8ClampedArray(buffer);
-        case TYPE_INT16ARRAY:
-            return new Int16Array(buffer);
-        case TYPE_UINT16ARRAY:
-            return new Uint16Array(buffer);
-        case TYPE_INT32ARRAY:
-            return new Int32Array(buffer);
-        case TYPE_UINT32ARRAY:
-            return new Uint32Array(buffer);
-        case TYPE_FLOAT32ARRAY:
-            return new Float32Array(buffer);
-        case TYPE_FLOAT64ARRAY:
-            return new Float64Array(buffer);
-        default:
-            throw new Error('Unkown type: ' + type);
-    }
-}
-
-var localforageSerializer = {
-    serialize: serialize,
-    deserialize: deserialize,
-    stringToBuffer: stringToBuffer,
-    bufferToString: bufferToString
-};
-
-export default localforageSerializer;