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Diffstat (limited to 'node_modules/busboy/lib/utils.js')
-rw-r--r--node_modules/busboy/lib/utils.js596
1 files changed, 596 insertions, 0 deletions
diff --git a/node_modules/busboy/lib/utils.js b/node_modules/busboy/lib/utils.js
new file mode 100644
index 0000000..8274f6c
--- /dev/null
+++ b/node_modules/busboy/lib/utils.js
@@ -0,0 +1,596 @@
+'use strict';
+
+function parseContentType(str) {
+ if (str.length === 0)
+ return;
+
+ const params = Object.create(null);
+ let i = 0;
+
+ // Parse type
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (TOKEN[code] !== 1) {
+ if (code !== 47/* '/' */ || i === 0)
+ return;
+ break;
+ }
+ }
+ // Check for type without subtype
+ if (i === str.length)
+ return;
+
+ const type = str.slice(0, i).toLowerCase();
+
+ // Parse subtype
+ const subtypeStart = ++i;
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (TOKEN[code] !== 1) {
+ // Make sure we have a subtype
+ if (i === subtypeStart)
+ return;
+
+ if (parseContentTypeParams(str, i, params) === undefined)
+ return;
+ break;
+ }
+ }
+ // Make sure we have a subtype
+ if (i === subtypeStart)
+ return;
+
+ const subtype = str.slice(subtypeStart, i).toLowerCase();
+
+ return { type, subtype, params };
+}
+
+function parseContentTypeParams(str, i, params) {
+ while (i < str.length) {
+ // Consume whitespace
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (code !== 32/* ' ' */ && code !== 9/* '\t' */)
+ break;
+ }
+
+ // Ended on whitespace
+ if (i === str.length)
+ break;
+
+ // Check for malformed parameter
+ if (str.charCodeAt(i++) !== 59/* ';' */)
+ return;
+
+ // Consume whitespace
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (code !== 32/* ' ' */ && code !== 9/* '\t' */)
+ break;
+ }
+
+ // Ended on whitespace (malformed)
+ if (i === str.length)
+ return;
+
+ let name;
+ const nameStart = i;
+ // Parse parameter name
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (TOKEN[code] !== 1) {
+ if (code !== 61/* '=' */)
+ return;
+ break;
+ }
+ }
+
+ // No value (malformed)
+ if (i === str.length)
+ return;
+
+ name = str.slice(nameStart, i);
+ ++i; // Skip over '='
+
+ // No value (malformed)
+ if (i === str.length)
+ return;
+
+ let value = '';
+ let valueStart;
+ if (str.charCodeAt(i) === 34/* '"' */) {
+ valueStart = ++i;
+ let escaping = false;
+ // Parse quoted value
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (code === 92/* '\\' */) {
+ if (escaping) {
+ valueStart = i;
+ escaping = false;
+ } else {
+ value += str.slice(valueStart, i);
+ escaping = true;
+ }
+ continue;
+ }
+ if (code === 34/* '"' */) {
+ if (escaping) {
+ valueStart = i;
+ escaping = false;
+ continue;
+ }
+ value += str.slice(valueStart, i);
+ break;
+ }
+ if (escaping) {
+ valueStart = i - 1;
+ escaping = false;
+ }
+ // Invalid unescaped quoted character (malformed)
+ if (QDTEXT[code] !== 1)
+ return;
+ }
+
+ // No end quote (malformed)
+ if (i === str.length)
+ return;
+
+ ++i; // Skip over double quote
+ } else {
+ valueStart = i;
+ // Parse unquoted value
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (TOKEN[code] !== 1) {
+ // No value (malformed)
+ if (i === valueStart)
+ return;
+ break;
+ }
+ }
+ value = str.slice(valueStart, i);
+ }
+
+ name = name.toLowerCase();
+ if (params[name] === undefined)
+ params[name] = value;
+ }
+
+ return params;
+}
+
+function parseDisposition(str, defDecoder) {
+ if (str.length === 0)
+ return;
+
+ const params = Object.create(null);
+ let i = 0;
+
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (TOKEN[code] !== 1) {
+ if (parseDispositionParams(str, i, params, defDecoder) === undefined)
+ return;
+ break;
+ }
+ }
+
+ const type = str.slice(0, i).toLowerCase();
+
+ return { type, params };
+}
+
+function parseDispositionParams(str, i, params, defDecoder) {
+ while (i < str.length) {
+ // Consume whitespace
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (code !== 32/* ' ' */ && code !== 9/* '\t' */)
+ break;
+ }
+
+ // Ended on whitespace
+ if (i === str.length)
+ break;
+
+ // Check for malformed parameter
+ if (str.charCodeAt(i++) !== 59/* ';' */)
+ return;
+
+ // Consume whitespace
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (code !== 32/* ' ' */ && code !== 9/* '\t' */)
+ break;
+ }
+
+ // Ended on whitespace (malformed)
+ if (i === str.length)
+ return;
+
+ let name;
+ const nameStart = i;
+ // Parse parameter name
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (TOKEN[code] !== 1) {
+ if (code === 61/* '=' */)
+ break;
+ return;
+ }
+ }
+
+ // No value (malformed)
+ if (i === str.length)
+ return;
+
+ let value = '';
+ let valueStart;
+ let charset;
+ //~ let lang;
+ name = str.slice(nameStart, i);
+ if (name.charCodeAt(name.length - 1) === 42/* '*' */) {
+ // Extended value
+
+ const charsetStart = ++i;
+ // Parse charset name
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (CHARSET[code] !== 1) {
+ if (code !== 39/* '\'' */)
+ return;
+ break;
+ }
+ }
+
+ // Incomplete charset (malformed)
+ if (i === str.length)
+ return;
+
+ charset = str.slice(charsetStart, i);
+ ++i; // Skip over the '\''
+
+ //~ const langStart = ++i;
+ // Parse language name
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (code === 39/* '\'' */)
+ break;
+ }
+
+ // Incomplete language (malformed)
+ if (i === str.length)
+ return;
+
+ //~ lang = str.slice(langStart, i);
+ ++i; // Skip over the '\''
+
+ // No value (malformed)
+ if (i === str.length)
+ return;
+
+ valueStart = i;
+
+ let encode = 0;
+ // Parse value
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (EXTENDED_VALUE[code] !== 1) {
+ if (code === 37/* '%' */) {
+ let hexUpper;
+ let hexLower;
+ if (i + 2 < str.length
+ && (hexUpper = HEX_VALUES[str.charCodeAt(i + 1)]) !== -1
+ && (hexLower = HEX_VALUES[str.charCodeAt(i + 2)]) !== -1) {
+ const byteVal = (hexUpper << 4) + hexLower;
+ value += str.slice(valueStart, i);
+ value += String.fromCharCode(byteVal);
+ i += 2;
+ valueStart = i + 1;
+ if (byteVal >= 128)
+ encode = 2;
+ else if (encode === 0)
+ encode = 1;
+ continue;
+ }
+ // '%' disallowed in non-percent encoded contexts (malformed)
+ return;
+ }
+ break;
+ }
+ }
+
+ value += str.slice(valueStart, i);
+ value = convertToUTF8(value, charset, encode);
+ if (value === undefined)
+ return;
+ } else {
+ // Non-extended value
+
+ ++i; // Skip over '='
+
+ // No value (malformed)
+ if (i === str.length)
+ return;
+
+ if (str.charCodeAt(i) === 34/* '"' */) {
+ valueStart = ++i;
+ let escaping = false;
+ // Parse quoted value
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (code === 92/* '\\' */) {
+ if (escaping) {
+ valueStart = i;
+ escaping = false;
+ } else {
+ value += str.slice(valueStart, i);
+ escaping = true;
+ }
+ continue;
+ }
+ if (code === 34/* '"' */) {
+ if (escaping) {
+ valueStart = i;
+ escaping = false;
+ continue;
+ }
+ value += str.slice(valueStart, i);
+ break;
+ }
+ if (escaping) {
+ valueStart = i - 1;
+ escaping = false;
+ }
+ // Invalid unescaped quoted character (malformed)
+ if (QDTEXT[code] !== 1)
+ return;
+ }
+
+ // No end quote (malformed)
+ if (i === str.length)
+ return;
+
+ ++i; // Skip over double quote
+ } else {
+ valueStart = i;
+ // Parse unquoted value
+ for (; i < str.length; ++i) {
+ const code = str.charCodeAt(i);
+ if (TOKEN[code] !== 1) {
+ // No value (malformed)
+ if (i === valueStart)
+ return;
+ break;
+ }
+ }
+ value = str.slice(valueStart, i);
+ }
+
+ value = defDecoder(value, 2);
+ if (value === undefined)
+ return;
+ }
+
+ name = name.toLowerCase();
+ if (params[name] === undefined)
+ params[name] = value;
+ }
+
+ return params;
+}
+
+function getDecoder(charset) {
+ let lc;
+ while (true) {
+ switch (charset) {
+ case 'utf-8':
+ case 'utf8':
+ return decoders.utf8;
+ case 'latin1':
+ case 'ascii': // TODO: Make these a separate, strict decoder?
+ case 'us-ascii':
+ case 'iso-8859-1':
+ case 'iso8859-1':
+ case 'iso88591':
+ case 'iso_8859-1':
+ case 'windows-1252':
+ case 'iso_8859-1:1987':
+ case 'cp1252':
+ case 'x-cp1252':
+ return decoders.latin1;
+ case 'utf16le':
+ case 'utf-16le':
+ case 'ucs2':
+ case 'ucs-2':
+ return decoders.utf16le;
+ case 'base64':
+ return decoders.base64;
+ default:
+ if (lc === undefined) {
+ lc = true;
+ charset = charset.toLowerCase();
+ continue;
+ }
+ return decoders.other.bind(charset);
+ }
+ }
+}
+
+const decoders = {
+ utf8: (data, hint) => {
+ if (data.length === 0)
+ return '';
+ if (typeof data === 'string') {
+ // If `data` never had any percent-encoded bytes or never had any that
+ // were outside of the ASCII range, then we can safely just return the
+ // input since UTF-8 is ASCII compatible
+ if (hint < 2)
+ return data;
+
+ data = Buffer.from(data, 'latin1');
+ }
+ return data.utf8Slice(0, data.length);
+ },
+
+ latin1: (data, hint) => {
+ if (data.length === 0)
+ return '';
+ if (typeof data === 'string')
+ return data;
+ return data.latin1Slice(0, data.length);
+ },
+
+ utf16le: (data, hint) => {
+ if (data.length === 0)
+ return '';
+ if (typeof data === 'string')
+ data = Buffer.from(data, 'latin1');
+ return data.ucs2Slice(0, data.length);
+ },
+
+ base64: (data, hint) => {
+ if (data.length === 0)
+ return '';
+ if (typeof data === 'string')
+ data = Buffer.from(data, 'latin1');
+ return data.base64Slice(0, data.length);
+ },
+
+ other: (data, hint) => {
+ if (data.length === 0)
+ return '';
+ if (typeof data === 'string')
+ data = Buffer.from(data, 'latin1');
+ try {
+ const decoder = new TextDecoder(this);
+ return decoder.decode(data);
+ } catch {}
+ },
+};
+
+function convertToUTF8(data, charset, hint) {
+ const decode = getDecoder(charset);
+ if (decode)
+ return decode(data, hint);
+}
+
+function basename(path) {
+ if (typeof path !== 'string')
+ return '';
+ for (let i = path.length - 1; i >= 0; --i) {
+ switch (path.charCodeAt(i)) {
+ case 0x2F: // '/'
+ case 0x5C: // '\'
+ path = path.slice(i + 1);
+ return (path === '..' || path === '.' ? '' : path);
+ }
+ }
+ return (path === '..' || path === '.' ? '' : path);
+}
+
+const TOKEN = [
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+];
+
+const QDTEXT = [
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+];
+
+const CHARSET = [
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+];
+
+const EXTENDED_VALUE = [
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0,
+ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+];
+
+/* eslint-disable no-multi-spaces */
+const HEX_VALUES = [
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1,
+ -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+];
+/* eslint-enable no-multi-spaces */
+
+module.exports = {
+ basename,
+ convertToUTF8,
+ getDecoder,
+ parseContentType,
+ parseDisposition,
+};
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-16 05:23:35 +0000