UEA-Prodem

node_modules/hono/dist/utils/ipaddr.js

@@ -0,0 +1,288 @@
+// src/utils/ipaddr.ts
+var expandIPv6 = (ipV6) => {
+  const sections = ipV6.split(":");
+  if (IPV4_REGEX.test(sections.at(-1))) {
+    sections.splice(
+      -1,
+      1,
+      ...convertIPv6BinaryToString(convertIPv4ToBinary(sections.at(-1))).substring(2).split(":")
+      // => ['7f00', '0001']
+    );
+  }
+  for (let i = 0; i < sections.length; i++) {
+    const node = sections[i];
+    if (node !== "") {
+      sections[i] = node.padStart(4, "0");
+    } else {
+      while (sections[i + 1] === "") {
+        sections.splice(i + 1, 1);
+      }
+      sections[i] = new Array(8 - sections.length + 1).fill("0000").join(":");
+    }
+  }
+  return sections.join(":");
+};
+var IPV4_OCTET_PART = "(?:25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])";
+var IPV4_REGEX = new RegExp(`^(?:${IPV4_OCTET_PART}\\.){3}${IPV4_OCTET_PART}$`);
+var INVALID_IP_ADDRESS_ERROR_CODE = "ERR_INVALID_IP_ADDRESS";
+var CHAR_CODE_0 = 48;
+var CHAR_CODE_9 = 57;
+var CHAR_CODE_A = 65;
+var CHAR_CODE_F = 70;
+var CHAR_CODE_a = 97;
+var CHAR_CODE_f = 102;
+var CHAR_CODE_DOT = 46;
+var CHAR_CODE_COLON = 58;
+var CHAR_CODE_PERCENT = 37;
+var distinctRemoteAddr = (remoteAddr) => {
+  if (IPV4_REGEX.test(remoteAddr)) {
+    return "IPv4";
+  }
+  if (remoteAddr.includes(":")) {
+    return "IPv6";
+  }
+};
+var createInvalidIPAddressError = (message) => {
+  const error = new TypeError(message);
+  error.code = INVALID_IP_ADDRESS_ERROR_CODE;
+  return error;
+};
+var throwInvalidIPv4Address = (ipv4) => {
+  throw createInvalidIPAddressError(`Invalid IPv4 address: ${ipv4}`);
+};
+var throwInvalidIPv6Address = (ipv6) => {
+  throw createInvalidIPAddressError(`Invalid IPv6 address: ${ipv6}`);
+};
+var parseIPv4ToBinary = (ipv4, start, end, onInvalid) => {
+  let result = 0n;
+  let octets = 0;
+  let octet = 0;
+  let digits = 0;
+  let firstDigit = 0;
+  for (let i = start; i <= end; i++) {
+    const code = i < end ? ipv4.charCodeAt(i) : CHAR_CODE_DOT;
+    if (code >= CHAR_CODE_0 && code <= CHAR_CODE_9) {
+      if (digits === 0) {
+        firstDigit = code;
+      } else if (firstDigit === CHAR_CODE_0) {
+        onInvalid();
+      }
+      octet = octet * 10 + code - CHAR_CODE_0;
+      if (octet > 255) {
+        onInvalid();
+      }
+      digits++;
+      continue;
+    }
+    if (code !== CHAR_CODE_DOT || digits === 0 || octets === 4) {
+      onInvalid();
+    }
+    result = (result << 8n) + BigInt(octet);
+    octets++;
+    octet = 0;
+    digits = 0;
+  }
+  if (octets !== 4) {
+    onInvalid();
+  }
+  return result;
+};
+var parseIPv6HexCode = (code) => {
+  if (code >= CHAR_CODE_0 && code <= CHAR_CODE_9) {
+    return code - CHAR_CODE_0;
+  }
+  if (code >= CHAR_CODE_A && code <= CHAR_CODE_F) {
+    return code - CHAR_CODE_A + 10;
+  }
+  if (code >= CHAR_CODE_a && code <= CHAR_CODE_f) {
+    return code - CHAR_CODE_a + 10;
+  }
+  return -1;
+};
+var isIPv6LinkLocal = (ipv6binary) => ipv6binary >> 118n === 0x3fan;
+var convertIPv4ToBinary = (ipv4) => {
+  return parseIPv4ToBinary(ipv4, 0, ipv4.length, () => throwInvalidIPv4Address(ipv4));
+};
+var convertIPv6ToBinary = (ipv6) => {
+  const length = ipv6.length;
+  const sections = [];
+  let hasZoneId = false;
+  let compressAt = -1;
+  let index = 0;
+  if (length === 0) {
+    throwInvalidIPv6Address(ipv6);
+  }
+  while (index < length) {
+    if (sections.length > 8) {
+      throwInvalidIPv6Address(ipv6);
+    }
+    let code = ipv6.charCodeAt(index);
+    if (code === CHAR_CODE_PERCENT) {
+      if (index + 1 === length) {
+        throwInvalidIPv6Address(ipv6);
+      }
+      hasZoneId = true;
+      break;
+    }
+    if (code === CHAR_CODE_COLON) {
+      if (index + 1 < length && ipv6.charCodeAt(index + 1) === CHAR_CODE_COLON) {
+        if (compressAt !== -1) {
+          throwInvalidIPv6Address(ipv6);
+        }
+        compressAt = sections.length;
+        index += 2;
+        continue;
+      }
+      throwInvalidIPv6Address(ipv6);
+    }
+    let value = 0;
+    let digits = 0;
+    const sectionStart = index;
+    while (index < length) {
+      code = ipv6.charCodeAt(index);
+      const hex = parseIPv6HexCode(code);
+      if (hex === -1) {
+        break;
+      }
+      if (digits === 4) {
+        throwInvalidIPv6Address(ipv6);
+      }
+      value = value << 4 | hex;
+      digits++;
+      index++;
+    }
+    if (index < length && ipv6.charCodeAt(index) === CHAR_CODE_DOT) {
+      let ipv4End = length;
+      for (let i = index; i < length; i++) {
+        if (ipv6.charCodeAt(i) === CHAR_CODE_PERCENT) {
+          if (i + 1 === length) {
+            throwInvalidIPv6Address(ipv6);
+          }
+          hasZoneId = true;
+          ipv4End = i;
+          break;
+        }
+      }
+      const ipv4 = parseIPv4ToBinary(
+        ipv6,
+        sectionStart,
+        ipv4End,
+        () => throwInvalidIPv6Address(ipv6)
+      );
+      sections.push(Number(ipv4 >> 16n & 0xffffn), Number(ipv4 & 0xffffn));
+      index = length;
+      break;
+    }
+    if (digits === 0) {
+      throwInvalidIPv6Address(ipv6);
+    }
+    sections.push(value);
+    if (index === length) {
+      break;
+    }
+    code = ipv6.charCodeAt(index);
+    if (code === CHAR_CODE_PERCENT) {
+      if (index + 1 === length) {
+        throwInvalidIPv6Address(ipv6);
+      }
+      hasZoneId = true;
+      break;
+    }
+    if (code !== CHAR_CODE_COLON) {
+      throwInvalidIPv6Address(ipv6);
+    }
+    if (index + 1 < length && ipv6.charCodeAt(index + 1) === CHAR_CODE_COLON) {
+      if (compressAt !== -1) {
+        throwInvalidIPv6Address(ipv6);
+      }
+      compressAt = sections.length;
+      index += 2;
+      continue;
+    }
+    index++;
+    if (index === length) {
+      throwInvalidIPv6Address(ipv6);
+    }
+  }
+  if (compressAt === -1 ? sections.length !== 8 : sections.length >= 8) {
+    throwInvalidIPv6Address(ipv6);
+  }
+  let result = 0n;
+  const zeros = compressAt === -1 ? 0 : 8 - sections.length;
+  const firstSectionEnd = compressAt === -1 ? sections.length : compressAt;
+  for (let i = 0; i < firstSectionEnd; i++) {
+    result <<= 16n;
+    result += BigInt(sections[i]);
+  }
+  for (let i = 0; i < zeros; i++) {
+    result <<= 16n;
+  }
+  for (let i = firstSectionEnd; i < sections.length; i++) {
+    result <<= 16n;
+    result += BigInt(sections[i]);
+  }
+  if (hasZoneId && !isIPv6LinkLocal(result)) {
+    throwInvalidIPv6Address(ipv6);
+  }
+  return result;
+};
+var convertIPv4BinaryToString = (ipV4) => {
+  const sections = [];
+  for (let i = 0; i < 4; i++) {
+    sections.push(ipV4 >> BigInt(8 * (3 - i)) & 0xffn);
+  }
+  return sections.join(".");
+};
+var isIPv4MappedIPv6 = (ipv6binary) => ipv6binary >> 32n === 0xffffn;
+var convertIPv4MappedIPv6ToIPv4 = (ipv6binary) => ipv6binary & 0xffffffffn;
+var convertIPv6BinaryToString = (ipV6) => {
+  if (ipV6 === 0n) {
+    return "::";
+  }
+  if (isIPv4MappedIPv6(ipV6)) {
+    return `::ffff:${convertIPv4BinaryToString(convertIPv4MappedIPv6ToIPv4(ipV6))}`;
+  }
+  const sections = [];
+  for (let i = 0; i < 8; i++) {
+    sections.push((ipV6 >> BigInt(16 * (7 - i)) & 0xffffn).toString(16));
+  }
+  let currentZeroStart = -1;
+  let maxZeroStart = -1;
+  let maxZeroEnd = -1;
+  for (let i = 0; i < 8; i++) {
+    if (sections[i] === "0") {
+      if (currentZeroStart === -1) {
+        currentZeroStart = i;
+      }
+    } else {
+      if (currentZeroStart > -1) {
+        if (i - currentZeroStart > maxZeroEnd - maxZeroStart) {
+          maxZeroStart = currentZeroStart;
+          maxZeroEnd = i;
+        }
+        currentZeroStart = -1;
+      }
+    }
+  }
+  if (currentZeroStart > -1) {
+    if (8 - currentZeroStart > maxZeroEnd - maxZeroStart) {
+      maxZeroStart = currentZeroStart;
+      maxZeroEnd = 8;
+    }
+  }
+  if (maxZeroStart !== -1 && maxZeroEnd - maxZeroStart > 1) {
+    sections.splice(maxZeroStart, maxZeroEnd - maxZeroStart, ":");
+  }
+  return sections.join(":").replace(/:{2,}/g, "::");
+};
+export {
+  INVALID_IP_ADDRESS_ERROR_CODE,
+  convertIPv4BinaryToString,
+  convertIPv4MappedIPv6ToIPv4,
+  convertIPv4ToBinary,
+  convertIPv6BinaryToString,
+  convertIPv6ToBinary,
+  distinctRemoteAddr,
+  expandIPv6,
+  isIPv4MappedIPv6
+};