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https://github.com/Fabio286/antares.git
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refactor: add ciaplu for pattern matching in language detection and MIME type resolution
This commit is contained in:
12
package-lock.json
generated
12
package-lock.json
generated
@@ -22,6 +22,7 @@
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"babel-loader": "~8.2.3",
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"better-sqlite3": "~10.0.0",
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"chalk": "~4.1.2",
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"ciaplu": "^2.2.0",
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"cpu-features": "^0.0.10",
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"cross-env": "~7.0.2",
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"css-loader": "~6.5.0",
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@@ -5608,6 +5609,12 @@
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"node": ">=8"
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}
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},
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"node_modules/ciaplu": {
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"version": "2.2.0",
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"resolved": "https://registry.npmjs.org/ciaplu/-/ciaplu-2.2.0.tgz",
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"integrity": "sha512-7y8s0GMFpIKqX2kwiOEYbaX3P9tPIbX4x41uw8GZjkZ+y0QZrpY3PFjE2Ed6BOeFxcCWi7b85MYHeiRrVrlSOQ==",
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"license": "MIT"
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},
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"node_modules/clean-css": {
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"version": "5.3.2",
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"license": "MIT",
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@@ -20345,6 +20352,11 @@
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"version": "3.9.0",
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"dev": true
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},
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"ciaplu": {
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"version": "2.2.0",
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"resolved": "https://registry.npmjs.org/ciaplu/-/ciaplu-2.2.0.tgz",
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"integrity": "sha512-7y8s0GMFpIKqX2kwiOEYbaX3P9tPIbX4x41uw8GZjkZ+y0QZrpY3PFjE2Ed6BOeFxcCWi7b85MYHeiRrVrlSOQ=="
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},
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"clean-css": {
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"version": "5.3.2",
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"requires": {
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@@ -131,6 +131,7 @@
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"babel-loader": "~8.2.3",
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"better-sqlite3": "~10.0.0",
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"chalk": "~4.1.2",
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"ciaplu": "^2.2.0",
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"cpu-features": "^0.0.10",
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"cross-env": "~7.0.2",
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"css-loader": "~6.5.0",
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@@ -1,3 +1,5 @@
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import { match } from 'ciaplu';
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function isJSON (str: string) {
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try {
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if (!['{', '['].includes(str.trim()[0]))
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@@ -176,17 +178,13 @@ function isMD (str: string) {
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}
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export function langDetector (str: string) {
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if (!str || !str.trim().length)
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return 'text';
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if (isJSON(str))
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return 'json';
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if (isHTML(str))
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return 'html';
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if (isSVG(str))
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return 'svg';
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if (isXML(str))
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return 'xml';
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if (isMD(str))
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return 'markdown';
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return 'text';
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return match(str)
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.when(() => !str || !str.trim().length, () => 'text')
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.when(isJSON, () => 'json')
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.when(isHTML, () => 'html')
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.when(isSVG, () => 'svg')
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.when(isXML, () => 'xml')
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.when(isMD, () => 'markdown')
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.otherwise(() => 'text')
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.return();
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}
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@@ -1,45 +1,25 @@
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import { match } from 'ciaplu';
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export function mimeFromHex (hex: string) {
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switch (hex.substring(0, 4)) { // 2 bytes
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case '424D':
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return { ext: 'bmp', mime: 'image/bmp' };
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case '1F8B':
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return { ext: 'tar.gz', mime: 'application/gzip' };
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case '0B77':
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return { ext: 'ac3', mime: 'audio/vnd.dolby.dd-raw' };
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case '7801':
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return { ext: 'dmg', mime: 'application/x-apple-diskimage' };
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case '4D5A':
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return { ext: 'exe', mime: 'application/x-msdownload' };
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case '1FA0':
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case '1F9D':
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return { ext: 'Z', mime: 'application/x-compress' };
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default:
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switch (hex.substring(0, 6)) { // 3 bytes
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case 'FFD8FF':
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return { ext: 'jpg', mime: 'image/jpeg' };
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case '4949BC':
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return { ext: 'jxr', mime: 'image/vnd.ms-photo' };
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case '425A68':
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return { ext: 'bz2', mime: 'application/x-bzip2' };
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default:
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switch (hex) { // 4 bites
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case '89504E47':
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return { ext: 'png', mime: 'image/png' };
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case '47494638':
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return { ext: 'gif', mime: 'image/gif' };
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case '25504446':
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return { ext: 'pdf', mime: 'application/pdf' };
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case '504B0304':
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return { ext: 'zip', mime: 'application/zip' };
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case '425047FB':
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return { ext: 'bpg', mime: 'image/bpg' };
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case '4D4D002A':
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return { ext: 'tif', mime: 'image/tiff' };
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case '00000100':
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return { ext: 'ico', mime: 'image/x-icon' };
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default:
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return { ext: '', mime: 'unknown ' + hex };
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}
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}
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}
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return match(hex.substring(0, 4)) // 2 bytes
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.with('424D', () => ({ ext: 'bmp', mime: 'image/bmp' }))
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.with('1F8B', () => ({ ext: 'tar.gz', mime: 'application/gzip' }))
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.with('0B77', () => ({ ext: 'ac3', mime: 'audio/vnd.dolby.dd-raw' }))
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.with('7801', () => ({ ext: 'dmg', mime: 'application/x-apple-diskimage' }))
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.with('4D5A', () => ({ ext: 'exe', mime: 'application/x-msdownload' }))
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.when((val) => ['1FA0', '1F9D'].includes(val), () => ({ ext: 'Z', mime: 'application/x-compress' }))
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.extracting(() => hex.substring(0, 6)) // 3 bytes
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.with('FFD8FF', () => ({ ext: 'jpg', mime: 'image/jpeg' }))
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.with('4949BC', () => ({ ext: 'jxr', mime: 'image/vnd.ms-photo' }))
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.with('425A68', () => ({ ext: 'bz2', mime: 'application/x-bzip2' }))
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.extracting(() => hex) // 4 bytes
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.with('89504E47', () => ({ ext: 'png', mime: 'image/png' }))
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.with('47494638', () => ({ ext: 'gif', mime: 'image/gif' }))
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.with('25504446', () => ({ ext: 'pdf', mime: 'application/pdf' }))
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.with('504B0304', () => ({ ext: 'zip', mime: 'application/zip' }))
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.with('425047FB', () => ({ ext: 'bpg', mime: 'image/bpg' }))
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.with('4D4D002A', () => ({ ext: 'tif', mime: 'image/tiff' }))
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.with('00000100', () => ({ ext: 'ico', mime: 'image/x-icon' }))
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.otherwise(() => ({ ext: '', mime: 'unknown ' + hex }))
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.return();
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}
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