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floCrypto_v2.0.1, floBlockchainAPI_v2.0.1a

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floCrypto_v2.0.1 (ASCII fns)
- validateASCII
- convertToASCII
- revertUnicode

floBlockchainAPI_v2.0.1a
bugfix
This commit is contained in:
sairajzero 2021-04-18 02:36:51 +05:30
parent 836f359cf2
commit 05f110661e
1 changed files with 143 additions and 78 deletions
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221
standard_Operations.html
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@ -6955,7 +6955,7 @@ Bitcoin.Util = {
})(); })();
</script> </script>
<script id="floCrypto" version="2.0.0"> <script id="floCrypto" version="2.0.1">
/* FLO Crypto Operators*/ /* FLO Crypto Operators*/
const floCrypto = { const floCrypto = {
@ -6964,17 +6964,19 @@ Bitcoin.Util = {
ecparams: EllipticCurve.getSECCurveByName("secp256k1"), ecparams: EllipticCurve.getSECCurveByName("secp256k1"),
exponent1: function () { asciiAlternatives: `‘ '\n’ '\n“ "\n” "\n– --\n— ---\n≥ >=\n≤ <=\n≠ !=\n× *\n÷ /\n← <-\n→ ->\n↔ <->\n⇒ =>\n⇐ <=\n⇔ <=>`,
exponent1: function() {
return this.p.add(BigInteger.ONE).divide(BigInteger("4")) return this.p.add(BigInteger.ONE).divide(BigInteger("4"))
}, },
calculateY: function (x) { calculateY: function(x) {
let p = this.p; let p = this.p;
let exp = this.exponent1(); let exp = this.exponent1();
// x is x value of public key in BigInteger format without 02 or 03 or 04 prefix // x is x value of public key in BigInteger format without 02 or 03 or 04 prefix
return x.modPow(BigInteger("3"), p).add(BigInteger("7")).mod(p).modPow(exp, p) return x.modPow(BigInteger("3"), p).add(BigInteger("7")).mod(p).modPow(exp, p)
}, },
getUncompressedPublicKey: function (compressedPublicKey) { getUncompressedPublicKey: function(compressedPublicKey) {
const p = this.p; const p = this.p;
// Fetch x from compressedPublicKey // Fetch x from compressedPublicKey
let pubKeyBytes = Crypto.util.hexToBytes(compressedPublicKey); let pubKeyBytes = Crypto.util.hexToBytes(compressedPublicKey);
@ -6989,16 +6991,15 @@ Bitcoin.Util = {
// verify y value // verify y value
let resultBigInt = y.mod(BigInteger("2")); let resultBigInt = y.mod(BigInteger("2"));
let check = resultBigInt.toString() % 2; let check = resultBigInt.toString() % 2;
if (prefix_modulus !== check) { if (prefix_modulus !== check)
yDecimalValue = y.negate().mod(p).toString(); yDecimalValue = y.negate().mod(p).toString();
}
return { return {
x: xDecimalValue, x: xDecimalValue,
y: yDecimalValue y: yDecimalValue
}; };
}, },
getSenderPublicKeyString: function () { getSenderPublicKeyString: function() {
privateKey = ellipticCurveEncryption.senderRandom(); privateKey = ellipticCurveEncryption.senderRandom();
senderPublicKeyString = ellipticCurveEncryption.senderPublicString(privateKey); senderPublicKeyString = ellipticCurveEncryption.senderPublicString(privateKey);
return { return {
@ -7007,39 +7008,28 @@ Bitcoin.Util = {
} }
}, },
deriveSharedKeySender: function (receiverCompressedPublicKey, senderPrivateKey) { deriveSharedKeySender: function(receiverCompressedPublicKey, senderPrivateKey) {
try { let receiverPublicKeyString = this.getUncompressedPublicKey(receiverCompressedPublicKey);
let receiverPublicKeyString = this.getUncompressedPublicKey(receiverCompressedPublicKey); var senderDerivedKey = ellipticCurveEncryption.senderSharedKeyDerivation(
var senderDerivedKey = ellipticCurveEncryption.senderSharedKeyDerivation( receiverPublicKeyString.x, receiverPublicKeyString.y, senderPrivateKey);
receiverPublicKeyString.x, receiverPublicKeyString.y, senderPrivateKey); return senderDerivedKey;
return senderDerivedKey;
} catch (error) {
return new Error(error);
}
}, },
deriveReceiverSharedKey: function (senderPublicKeyString, receiverPrivateKey) { deriveReceiverSharedKey: function(senderPublicKeyString, receiverPrivateKey) {
return ellipticCurveEncryption.receiverSharedKeyDerivation( return ellipticCurveEncryption.receiverSharedKeyDerivation(
senderPublicKeyString.XValuePublicString, senderPublicKeyString.YValuePublicString, senderPublicKeyString.XValuePublicString, senderPublicKeyString.YValuePublicString, receiverPrivateKey);
receiverPrivateKey);
}, },
getReceiverPublicKeyString: function (privateKey) { getReceiverPublicKeyString: function(privateKey) {
return ellipticCurveEncryption.receiverPublicString(privateKey); return ellipticCurveEncryption.receiverPublicString(privateKey);
}, },
deriveSharedKeyReceiver: function (senderPublicKeyString, receiverPrivateKey) { deriveSharedKeyReceiver: function(senderPublicKeyString, receiverPrivateKey) {
try { return ellipticCurveEncryption.receiverSharedKeyDerivation(
return ellipticCurveEncryption.receiverSharedKeyDerivation(senderPublicKeyString senderPublicKeyString.XValuePublicString, senderPublicKeyString.YValuePublicString, receiverPrivateKey);
.XValuePublicString,
senderPublicKeyString.YValuePublicString, receiverPrivateKey);
} catch (error) {
return new Error(error);
}
}, },
wifToDecimal: function (pk_wif, isPubKeyCompressed = false) { wifToDecimal: function(pk_wif, isPubKeyCompressed = false) {
let pk = Bitcoin.Base58.decode(pk_wif) let pk = Bitcoin.Base58.decode(pk_wif)
pk.shift() pk.shift()
pk.splice(-4, 4) pk.splice(-4, 4)
@ -7056,14 +7046,14 @@ Bitcoin.Util = {
}, },
//generate a random Interger within range //generate a random Interger within range
randInt: function (min, max) { randInt: function(min, max) {
min = Math.ceil(min); min = Math.ceil(min);
max = Math.floor(max); max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min; return Math.floor(Math.random() * (max - min + 1)) + min;
}, },
//generate a random String within length (options : alphaNumeric chars only) //generate a random String within length (options : alphaNumeric chars only)
randString: function (length, alphaNumeric = true) { randString: function(length, alphaNumeric = true) {
var result = ''; var result = '';
if (alphaNumeric) if (alphaNumeric)
var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
@ -7076,7 +7066,7 @@ Bitcoin.Util = {
}, },
//Encrypt Data using public-key //Encrypt Data using public-key
encryptData: function (data, receiverCompressedPublicKey) { encryptData: function(data, receiverCompressedPublicKey) {
var senderECKeyData = this.util.getSenderPublicKeyString(); var senderECKeyData = this.util.getSenderPublicKeyString();
var senderDerivedKey = this.util.deriveSharedKeySender(receiverCompressedPublicKey, senderECKeyData var senderDerivedKey = this.util.deriveSharedKeySender(receiverCompressedPublicKey, senderECKeyData
.privateKey); .privateKey);
@ -7089,7 +7079,7 @@ Bitcoin.Util = {
}, },
//Decrypt Data using private-key //Decrypt Data using private-key
decryptData: function (data, myPrivateKey) { decryptData: function(data, myPrivateKey) {
var receiverECKeyData = {}; var receiverECKeyData = {};
if (typeof myPrivateKey !== "string") throw new Error("No private key found."); if (typeof myPrivateKey !== "string") throw new Error("No private key found.");
@ -7108,7 +7098,7 @@ Bitcoin.Util = {
}, },
//Sign data using private-key //Sign data using private-key
signData: function (data, privateKeyHex) { signData: function(data, privateKeyHex) {
var key = new Bitcoin.ECKey(privateKeyHex); var key = new Bitcoin.ECKey(privateKeyHex);
key.setCompressed(true); key.setCompressed(true);
@ -7124,7 +7114,7 @@ Bitcoin.Util = {
}, },
//Verify signatue of the data using public-key //Verify signatue of the data using public-key
verifySign: function (data, signatureHex, publicKeyHex) { verifySign: function(data, signatureHex, publicKeyHex) {
var msgHash = Crypto.SHA256(data); var msgHash = Crypto.SHA256(data);
var messageHashBigInteger = new BigInteger(msgHash); var messageHashBigInteger = new BigInteger(msgHash);
@ -7139,7 +7129,7 @@ Bitcoin.Util = {
}, },
//Generates a new flo ID and returns private-key, public-key and floID //Generates a new flo ID and returns private-key, public-key and floID
generateNewID: function () { generateNewID: function() {
try { try {
var key = new Bitcoin.ECKey(false); var key = new Bitcoin.ECKey(false);
key.setCompressed(true); key.setCompressed(true);
@ -7154,7 +7144,7 @@ Bitcoin.Util = {
}, },
//Returns public-key from private-key //Returns public-key from private-key
getPubKeyHex: function (privateKeyHex) { getPubKeyHex: function(privateKeyHex) {
if (!privateKeyHex) if (!privateKeyHex)
return null; return null;
var key = new Bitcoin.ECKey(privateKeyHex); var key = new Bitcoin.ECKey(privateKeyHex);
@ -7165,7 +7155,7 @@ Bitcoin.Util = {
}, },
//Returns flo-ID from public-key or private-key //Returns flo-ID from public-key or private-key
getFloID: function (keyHex) { getFloID: function(keyHex) {
if (!keyHex) if (!keyHex)
return null; return null;
try { try {
@ -7179,7 +7169,7 @@ Bitcoin.Util = {
}, },
//Verify the private-key for the given public-key or flo-ID //Verify the private-key for the given public-key or flo-ID
verifyPrivKey: function (privateKeyHex, pubKey_floID, isfloID = true) { verifyPrivKey: function(privateKeyHex, pubKey_floID, isfloID = true) {
if (!privateKeyHex || !pubKey_floID) if (!privateKeyHex || !pubKey_floID)
return false; return false;
try { try {
@ -7199,7 +7189,7 @@ Bitcoin.Util = {
}, },
//Check if the given Address is valid or not //Check if the given Address is valid or not
validateAddr: function (inpAddr) { validateAddr: function(inpAddr) {
if (!inpAddr) if (!inpAddr)
return false; return false;
try { try {
@ -7211,7 +7201,7 @@ Bitcoin.Util = {
}, },
//Split the str using shamir's Secret and Returns the shares //Split the str using shamir's Secret and Returns the shares
createShamirsSecretShares: function (str, total_shares, threshold_limit) { createShamirsSecretShares: function(str, total_shares, threshold_limit) {
try { try {
if (str.length > 0) { if (str.length > 0) {
var strHex = shamirSecretShare.str2hex(str); var strHex = shamirSecretShare.str2hex(str);
@ -7225,12 +7215,12 @@ Bitcoin.Util = {
}, },
//Verifies the shares and str //Verifies the shares and str
verifyShamirsSecret: function (sharesArray, str) { verifyShamirsSecret: function(sharesArray, str) {
return (str && this.retrieveShamirSecret(sharesArray) === str) return (str && this.retrieveShamirSecret(sharesArray) === str)
}, },
//Returns the retrived secret by combining the shamirs shares //Returns the retrived secret by combining the shamirs shares
retrieveShamirSecret: function (sharesArray) { retrieveShamirSecret: function(sharesArray) {
try { try {
if (sharesArray.length > 0) { if (sharesArray.length > 0) {
var comb = shamirSecretShare.combine(sharesArray.slice(0, sharesArray.length)); var comb = shamirSecretShare.combine(sharesArray.slice(0, sharesArray.length));
@ -7241,17 +7231,75 @@ Bitcoin.Util = {
} catch { } catch {
return false; return false;
} }
},
validateASCII: function(string, bool = true) {
if (typeof string !== "string")
return null;
if (bool) {
let x;
for (let i = 0; i < string.length; i++) {
x = string.charCodeAt(i);
if (x < 32 || x > 127)
return false;
}
return true;
} else {
let x, invalids = {};
for (let i = 0; i < string.length; i++) {
x = string.charCodeAt(i);
if (x < 32 || x > 127)
if (x in invalids)
invalids[string[i]].push(i)
else
invalids[string[i]] = [i];
}
if (Object.keys(invalids).length)
return invalids;
else
return true;
}
},
convertToASCII: function(string, mode = 'soft-remove') {
let chars = this.validateASCII(string, false);
if (chars === true)
return string;
else if (chars === null)
return null;
let convertor, result = string,
refAlt = {};
this.util.asciiAlternatives.split('\n').forEach(a => refAlt[a[0]] = a.slice(2));
mode = mode.toLowerCase();
if (mode === "hard-unicode")
convertor = (c) => `\\u${('000'+c.charCodeAt().toString(16)).slice(-4)}`;
else if (mode === "soft-unicode")
convertor = (c) => refAlt[c] || `\\u${('000'+c.charCodeAt().toString(16)).slice(-4)}`;
else if (mode === "hard-remove")
convertor = c => "";
else if (mode === "soft-remove")
convertor = c => refAlt[c] || "";
else
return null;
for (let c in chars)
result = result.replaceAll(c, convertor(c));
return result;
},
revertUnicode: function(string) {
return string.replace(/\\u[\dA-F]{4}/gi,
m => String.fromCharCode(parseInt(m.replace(/\\u/g, ''), 16)));
} }
} }
</script> </script>
<script id="floBlockchainAPI" version="2.0.1"> <script id="floBlockchainAPI" version="2.0.1a">
/* FLO Blockchain Operator to send/receive data from blockchain using API calls*/ /* FLO Blockchain Operator to send/receive data from blockchain using API calls*/
const floBlockchainAPI = { const floBlockchainAPI = {
util: { util: {
serverList: floGlobals.apiURL[floGlobals.blockchain].slice(0), serverList: floGlobals.apiURL[floGlobals.blockchain].slice(0),
curPos: floCrypto.randInt(0, floGlobals.apiURL[floGlobals.blockchain].length), curPos: floCrypto.randInt(0, floGlobals.apiURL[floGlobals.blockchain].length),
fetch_retry: function (apicall) { fetch_retry: function(apicall) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this.serverList.splice(this.curPos, 1); this.serverList.splice(this.curPos, 1);
this.curPos = floCrypto.randInt(0, this.serverList.length) this.curPos = floCrypto.randInt(0, this.serverList.length)
@ -7260,7 +7308,7 @@ Bitcoin.Util = {
.catch(error => reject(error)); .catch(error => reject(error));
}) })
}, },
fetch_api: function (apicall) { fetch_api: function(apicall) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
if (this.serverList.length === 0) if (this.serverList.length === 0)
reject("No floSight server working") reject("No floSight server working")
@ -7284,7 +7332,7 @@ Bitcoin.Util = {
}, },
//Promised function to get data from API //Promised function to get data from API
promisedAPI: function (apicall) { promisedAPI: function(apicall) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
console.log(apicall) console.log(apicall)
this.util.fetch_api(apicall) this.util.fetch_api(apicall)
@ -7294,7 +7342,7 @@ Bitcoin.Util = {
}, },
//Get balance for the given Address //Get balance for the given Address
getBalance: function (addr) { getBalance: function(addr) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this.promisedAPI(`api/addr/${addr}/balance`) this.promisedAPI(`api/addr/${addr}/balance`)
.then(balance => resolve(parseFloat(balance))) .then(balance => resolve(parseFloat(balance)))
@ -7303,7 +7351,7 @@ Bitcoin.Util = {
}, },
//Write Data into blockchain //Write Data into blockchain
writeData: function (senderAddr, data, privKey, receiverAddr = floGlobals.adminID) { writeData: function(senderAddr, data, privKey, receiverAddr = floGlobals.adminID) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
if (typeof data != "string") if (typeof data != "string")
data = JSON.stringify(data); data = JSON.stringify(data);
@ -7314,8 +7362,10 @@ Bitcoin.Util = {
}, },
//Send Tx to blockchain //Send Tx to blockchain
sendTx: function (senderAddr, receiverAddr, sendAmt, privKey, floData = '') { sendTx: function(senderAddr, receiverAddr, sendAmt, privKey, floData = '') {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
if (!floCrypto.validateASCII(floData))
return reject("Invalid FLO_Data: only printable ASCII characters are allowed");
if (!floCrypto.validateAddr(senderAddr)) if (!floCrypto.validateAddr(senderAddr))
reject(`Invalid address : ${senderAddr}`); reject(`Invalid address : ${senderAddr}`);
else if (!floCrypto.validateAddr(receiverAddr)) else if (!floCrypto.validateAddr(receiverAddr))
@ -7356,12 +7406,14 @@ Bitcoin.Util = {
}, },
//merge all UTXOs of a given floID into a single UTXO //merge all UTXOs of a given floID into a single UTXO
mergeUTXOs: function (floID, privKey, floData = '') { mergeUTXOs: function(floID, privKey, floData = '') {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(floID)) if (!floCrypto.validateAddr(floID))
return reject(`Invalid floID`); return reject(`Invalid floID`);
if (!floCrypto.verifyPrivKey(privKey, floID)) if (!floCrypto.verifyPrivKey(privKey, floID))
return reject("Invalid Private Key") return reject("Invalid Private Key")
if (!floCrypto.validateASCII(floData))
return reject("Invalid FLO_Data: only printable ASCII characters are allowed");
var trx = bitjs.transaction(); var trx = bitjs.transaction();
var utxoAmt = 0.0; var utxoAmt = 0.0;
@ -7391,7 +7443,7 @@ Bitcoin.Util = {
* @param {boolean} preserveRatio (optional) preserve ratio or equal contribution * @param {boolean} preserveRatio (optional) preserve ratio or equal contribution
* @return {Promise} * @return {Promise}
*/ */
writeDataMultiple: function (senderPrivKeys, data, receivers = [floGlobals.adminID], preserveRatio = true) { writeDataMultiple: function(senderPrivKeys, data, receivers = [floGlobals.adminID], preserveRatio = true) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
if (!Array.isArray(senderPrivKeys)) if (!Array.isArray(senderPrivKeys))
return reject("Invalid senderPrivKeys: SenderPrivKeys must be Array") return reject("Invalid senderPrivKeys: SenderPrivKeys must be Array")
@ -7423,9 +7475,10 @@ Bitcoin.Util = {
* @param {string} floData FLO data of the txn * @param {string} floData FLO data of the txn
* @return {Promise} * @return {Promise}
*/ */
sendTxMultiple: function (senderPrivKeys, receivers, floData = '') { sendTxMultiple: function(senderPrivKeys, receivers, floData = '') {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
if (!floCrypto.validateASCII(floData))
return reject("Invalid FLO_Data: only printable ASCII characters are allowed");
let senders = {}, let senders = {},
preserveRatio; preserveRatio;
//check for argument validations //check for argument validations
@ -7581,7 +7634,7 @@ Bitcoin.Util = {
}, },
//Broadcast signed Tx in blockchain using API //Broadcast signed Tx in blockchain using API
broadcastTx: function (signedTxHash) { broadcastTx: function(signedTxHash) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
var request = new XMLHttpRequest(); var request = new XMLHttpRequest();
var url = this.util.serverList[this.util.curPos] + 'api/tx/send'; var url = this.util.serverList[this.util.curPos] + 'api/tx/send';
@ -7593,7 +7646,7 @@ Bitcoin.Util = {
request.open('POST', url, true); request.open('POST', url, true);
//Send the proper header information along with the request //Send the proper header information along with the request
request.setRequestHeader('Content-type', 'application/json'); request.setRequestHeader('Content-type', 'application/json');
request.onload = function () { request.onload = function() {
if (request.readyState == 4 && request.status == 200) { if (request.readyState == 4 && request.status == 200) {
console.log(request.response); console.log(request.response);
resolve(JSON.parse(request.response).txid.result); resolve(JSON.parse(request.response).txid.result);
@ -7605,7 +7658,7 @@ Bitcoin.Util = {
}) })
}, },
getTx: function (txid) { getTx: function(txid) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this.promisedAPI(`api/tx/${txid}`) this.promisedAPI(`api/tx/${txid}`)
.then(response => resolve(response)) .then(response => resolve(response))
@ -7614,7 +7667,7 @@ Bitcoin.Util = {
}, },
//Read Txs of Address between from and to //Read Txs of Address between from and to
readTxs: function (addr, from, to) { readTxs: function(addr, from, to) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this.promisedAPI(`api/addrs/${addr}/txs?from=${from}&to=${to}`) this.promisedAPI(`api/addrs/${addr}/txs?from=${from}&to=${to}`)
.then(response => resolve(response)) .then(response => resolve(response))
@ -7623,7 +7676,7 @@ Bitcoin.Util = {
}, },
//Read All Txs of Address (newest first) //Read All Txs of Address (newest first)
readAllTxs: function (addr) { readAllTxs: function(addr) {
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=1`).then(response => { this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=1`).then(response => {
this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=${response.totalItems}0`) this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=${response.totalItems}0`)
@ -7642,9 +7695,9 @@ Bitcoin.Util = {
contains : filters data that contains a string contains : filters data that contains a string
filter : custom filter funtion for floData (eg . filter: d => {return d[0] == '$'}) filter : custom filter funtion for floData (eg . filter: d => {return d[0] == '$'})
*/ */
readData: function (addr, options = {}) { readData: function(addr, options = {}) {
options.limit = options.limit | 0 options.limit = options.limit || 0
options.ignoreOld = options.ignoreOld | 0 options.ignoreOld = options.ignoreOld || 0
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=1`).then(response => { this.promisedAPI(`api/addrs/${addr}/txs?from=0&to=1`).then(response => {
var newItems = response.totalItems - options.ignoreOld; var newItems = response.totalItems - options.ignoreOld;
@ -7655,22 +7708,18 @@ Bitcoin.Util = {
var filteredData = []; var filteredData = [];
for (i = 0; i < (response.totalItems - options.ignoreOld) && for (i = 0; i < (response.totalItems - options.ignoreOld) &&
filteredData.length < options.limit; i++) { filteredData.length < options.limit; i++) {
if (options.sentOnly && response.items[i].vin[0].addr !== if (options.sentOnly && response.items[i].vin[0].addr !== addr)
addr)
continue; continue;
if (options.pattern) { if (options.pattern) {
try { try {
let jsonContent = JSON.parse(response.items[i] let jsonContent = JSON.parse(response.items[i].floData)
.floData) if (!Object.keys(jsonContent).includes(options.pattern))
if (!Object.keys(jsonContent).includes(options
.pattern))
continue; continue;
} catch (error) { } catch (error) {
continue; continue;
} }
} }
if (options.filter && !options.filter(response.items[i] if (options.filter && !options.filter(response.items[i].floData))
.floData))
continue; continue;
filteredData.push(response.items[i].floData); filteredData.push(response.items[i].floData);
} }
@ -7889,36 +7938,52 @@ Bitcoin.Util = {
}); });
}, },
/*searchData: function (obsName, options = {}, dbName = this.defaultDB) {
return new Promise((resolve, reject) => {
this.openDB(dbName).then(db => {
var obs = db.transaction(obsName, "readonly").objectStore(obsName);
var filteredResult = {}
let keyRange;
if(options.lowerKey!==null && options.upperKey!==null)
keyRange = IDBKeyRange.bound(options.lowerKey, options.upperKey);
else if(options.lowerKey!==null)
keyRange = IDBKeyRange.lowerBound(options.lowerKey);
else if (options.upperKey!==null)
keyRange = IDBKeyRange.upperBound(options.upperBound);
else if (options.atKey)
let curReq = obs.openCursor(keyRange, )
}).catch(error => reject(error))
})
},*/
searchData: function (obsName, options = {}, dbName = this.defaultDB) { searchData: function (obsName, options = {}, dbName = this.defaultDB) {
options.lowerKey = options.atKey || options.lowerKey || 0 options.lowerKey = options.atKey || options.lowerKey || 0
options.upperKey = options.atKey || options.upperKey || false options.upperKey = options.atKey || options.upperKey || false
options.patternEval = options.patternEval || ((k, v) => { options.patternEval = options.patternEval || ((k, v) => {
return true return true
}) })
options.limit = options.limit || false;
options.lastOnly = options.lastOnly || false options.lastOnly = options.lastOnly || false
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
this.openDB(dbName).then(db => { this.openDB(dbName).then(db => {
var obs = db.transaction(obsName, "readonly").objectStore(obsName); var obs = db.transaction(obsName, "readonly").objectStore(obsName);
var filteredResult = {} var filteredResult = {}
let curReq = obs.openCursor( let curReq = obs.openCursor(
options.upperKey ? IDBKeyRange.bound(options.lowerKey, options options.upperKey ? IDBKeyRange.bound(options.lowerKey, options.upperKey) : IDBKeyRange.lowerBound(options.lowerKey),
.upperKey) : IDBKeyRange.lowerBound(options.lowerKey),
options.lastOnly ? "prev" : "next"); options.lastOnly ? "prev" : "next");
curReq.onsuccess = (evt) => { curReq.onsuccess = (evt) => {
var cursor = evt.target.result; var cursor = evt.target.result;
if (cursor) { if (cursor) {
if (options.patternEval(cursor.primaryKey, cursor.value)) { if (options.patternEval(cursor.primaryKey, cursor.value)) {
filteredResult[cursor.primaryKey] = cursor.value; filteredResult[cursor.primaryKey] = cursor.value;
options.lastOnly ? resolve(filteredResult) : cursor options.lastOnly ? resolve(filteredResult) : cursor.continue();
.continue();
} else } else
cursor.continue(); cursor.continue();
} else } else
resolve(filteredResult); resolve(filteredResult);
} }
curReq.onerror = (evt) => reject( curReq.onerror = (evt) => reject(`Search unsuccessful [${evt.target.error.name}] ${evt.target.error.message}`);
`Search unsuccessful [${evt.target.error.name}] ${evt.target.error.message}`
);
db.close(); db.close();
}).catch(error => reject(error)); }).catch(error => reject(error));
}); });