// ==UserScript== // @name 百度贴吧图片解混淆助手 // @namespace https://greasyfork.org/ // @version 1.4.0 // @description 自动获取帖子原图，支持多种混淆算法，可自定义图片进行混淆，还能一键保存图片。 // @license MIT // @author Kira Diana // @match https://tieba.baidu.com/* // @grant none // @downloadURL none // ==/UserScript== /** * 此脚本的小番茄混淆代码来源于：https://xfqtphx.netlify.app/ * 其他混淆算法实现来源于：https://www.axe.ink/blog/encrypt/ * 本人对这些代码进行整合，并编写了相关界面代码。 */ let pic_list = {} let isOriginalPicPage = false let SIZE = 4294967296; let first_config let defaultTomatoKey = 1 let defaultOtherKey = 0.666 function gilbert2d(width, height) { /** * Generalized Hilbert ('gilbert') space-filling curve for arbitrary-sized * 2D rectangular grids. Generates discrete 2D coordinates to fill a rectangle * of size (width x height). */ const coordinates = []; if (width >= height) { generate2d(0, 0, width, 0, 0, height, coordinates); } else { generate2d(0, 0, 0, height, width, 0, coordinates); } return coordinates; } function generate2d(x, y, ax, ay, bx, by, coordinates) { const w = Math.abs(ax + ay); const h = Math.abs(bx + by); const dax = Math.sign(ax), day = Math.sign(ay); // unit major direction const dbx = Math.sign(bx), dby = Math.sign(by); // unit orthogonal direction if (h === 1) { // trivial row fill for (let i = 0; i < w; i++) { coordinates.push([x, y]); x += dax; y += day; } return; } if (w === 1) { // trivial column fill for (let i = 0; i < h; i++) { coordinates.push([x, y]); x += dbx; y += dby; } return; } let ax2 = Math.floor(ax / 2), ay2 = Math.floor(ay / 2); let bx2 = Math.floor(bx / 2), by2 = Math.floor(by / 2); const w2 = Math.abs(ax2 + ay2); const h2 = Math.abs(bx2 + by2); if (2 * w > 3 * h) { if ((w2 % 2) && (w > 2)) { // prefer even steps ax2 += dax; ay2 += day; } // long case: split in two parts only generate2d(x, y, ax2, ay2, bx, by, coordinates); generate2d(x + ax2, y + ay2, ax - ax2, ay - ay2, bx, by, coordinates); } else { if ((h2 % 2) && (h > 2)) { // prefer even steps bx2 += dbx; by2 += dby; } // standard case: one step up, one long horizontal, one step down generate2d(x, y, bx2, by2, ax2, ay2, coordinates); generate2d(x + bx2, y + by2, ax, ay, bx - bx2, by - by2, coordinates); generate2d(x + (ax - dax) + (bx2 - dbx), y + (ay - day) + (by2 - dby), -bx2, -by2, -(ax - ax2), -(ay - ay2), coordinates); } } function encryptTomato(img, key){ const cvs = document.createElement("canvas") const width = cvs.width = img.naturalWidth const height = cvs.height = img.naturalHeight const ctx = cvs.getContext("2d") ctx.drawImage(img, 0, 0) const imgdata = ctx.getImageData(0, 0, width, height) const imgdata2 = new ImageData(width, height) const curve = gilbert2d(width, height) const offset = Math.round((Math.sqrt(5) - 1) / 2 * width * height * parseFloat(key)) for(let i = 0; i < width * height; i++){ const old_pos = curve[i] const new_pos = curve[(i + offset) % (width * height)] const old_p = 4 * (old_pos[0] + old_pos[1] * width) const new_p = 4 * (new_pos[0] + new_pos[1] * width) imgdata2.data.set(imgdata.data.slice(old_p, old_p + 4), new_p) } ctx.putImageData(imgdata2, 0, 0) cvs.toBlob(b => { URL.revokeObjectURL(img.src) img.src = URL.createObjectURL(b) }, "image/png", 1) //}) } function decryptTomato(img, key){ const cvs = document.createElement("canvas") const width = cvs.width = img.naturalWidth const height = cvs.height = img.naturalHeight const ctx = cvs.getContext("2d") ctx.drawImage(img, 0, 0) const imgdata = ctx.getImageData(0, 0, width, height) const imgdata2 = new ImageData(width, height) const curve = gilbert2d(width, height) const offset = Math.round((Math.sqrt(5) - 1) / 2 * width * height * parseFloat(key)) for(let i = 0; i < width * height; i++){ const old_pos = curve[i] const new_pos = curve[(i + offset) % (width * height)] const old_p = 4 * (old_pos[0] + old_pos[1] * width) const new_p = 4 * (new_pos[0] + new_pos[1] * width) imgdata2.data.set(imgdata.data.slice(new_p, new_p + 4), old_p) } ctx.putImageData(imgdata2, 0, 0) cvs.toBlob(b => { URL.revokeObjectURL(img.src) img.src = URL.createObjectURL(b) }, "image/png", 1) //}) } var md5 = (function() { function MD5(string) { var x = Array(); var k, AA, BB, CC, DD, a, b, c, d; var S11 = 7 , S12 = 12 , S13 = 17 , S14 = 22; var S21 = 5 , S22 = 9 , S23 = 14 , S24 = 20; var S31 = 4 , S32 = 11 , S33 = 16 , S34 = 23; var S41 = 6 , S42 = 10 , S43 = 15 , S44 = 21; string = Utf8Encode(string); x = ConvertToWordArray(string); a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476; for (k = 0; k < x.length; k += 16) { AA = a; BB = b; CC = c; DD = d; a = FF(a, b, c, d, x[k + 0], S11, 0xD76AA478); d = FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756); c = FF(c, d, a, b, x[k + 2], S13, 0x242070DB); b = FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE); a = FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF); d = FF(d, a, b, c, x[k + 5], S12, 0x4787C62A); c = FF(c, d, a, b, x[k + 6], S13, 0xA8304613); b = FF(b, c, d, a, x[k + 7], S14, 0xFD469501); a = FF(a, b, c, d, x[k + 8], S11, 0x698098D8); d = FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF); c = FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1); b = FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE); a = FF(a, b, c, d, x[k + 12], S11, 0x6B901122); d = FF(d, a, b, c, x[k + 13], S12, 0xFD987193); c = FF(c, d, a, b, x[k + 14], S13, 0xA679438E); b = FF(b, c, d, a, x[k + 15], S14, 0x49B40821); a = GG(a, b, c, d, x[k + 1], S21, 0xF61E2562); d = GG(d, a, b, c, x[k + 6], S22, 0xC040B340); c = GG(c, d, a, b, x[k + 11], S23, 0x265E5A51); b = GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA); a = GG(a, b, c, d, x[k + 5], S21, 0xD62F105D); d = GG(d, a, b, c, x[k + 10], S22, 0x2441453); c = GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681); b = GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8); a = GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6); d = GG(d, a, b, c, x[k + 14], S22, 0xC33707D6); c = GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87); b = GG(b, c, d, a, x[k + 8], S24, 0x455A14ED); a = GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905); d = GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8); c = GG(c, d, a, b, x[k + 7], S23, 0x676F02D9); b = GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A); a = HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942); d = HH(d, a, b, c, x[k + 8], S32, 0x8771F681); c = HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122); b = HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C); a = HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44); d = HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9); c = HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60); b = HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70); a = HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6); d = HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA); c = HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085); b = HH(b, c, d, a, x[k + 6], S34, 0x4881D05); a = HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039); d = HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5); c = HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8); b = HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665); a = II(a, b, c, d, x[k + 0], S41, 0xF4292244); d = II(d, a, b, c, x[k + 7], S42, 0x432AFF97); c = II(c, d, a, b, x[k + 14], S43, 0xAB9423A7); b = II(b, c, d, a, x[k + 5], S44, 0xFC93A039); a = II(a, b, c, d, x[k + 12], S41, 0x655B59C3); d = II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92); c = II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D); b = II(b, c, d, a, x[k + 1], S44, 0x85845DD1); a = II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F); d = II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0); c = II(c, d, a, b, x[k + 6], S43, 0xA3014314); b = II(b, c, d, a, x[k + 13], S44, 0x4E0811A1); a = II(a, b, c, d, x[k + 4], S41, 0xF7537E82); d = II(d, a, b, c, x[k + 11], S42, 0xBD3AF235); c = II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB); b = II(b, c, d, a, x[k + 9], S44, 0xEB86D391); a = AddUnsigned(a, AA); b = AddUnsigned(b, BB); c = AddUnsigned(c, CC); d = AddUnsigned(d, DD); } var temp = WordToHex(a) + WordToHex(b) + WordToHex(c) + WordToHex(d); return temp.toUpperCase(); } function RotateLeft(lValue, iShiftBits) { return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits)); } function AddUnsigned(lX, lY) { var lX4, lY4, lX8, lY8, lResult; lX8 = (lX & 0x80000000); lY8 = (lY & 0x80000000); lX4 = (lX & 0x40000000); lY4 = (lY & 0x40000000); lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF); if (lX4 & lY4) { return (lResult ^ 0x80000000 ^ lX8 ^ lY8); } if (lX4 | lY4) { if (lResult & 0x40000000) { return (lResult ^ 0xC0000000 ^ lX8 ^ lY8); } else { return (lResult ^ 0x40000000 ^ lX8 ^ lY8); } } else { return (lResult ^ lX8 ^ lY8); } } function F(x, y, z) { return (x & y) | ((~x) & z); } function G(x, y, z) { return (x & z) | (y & (~z)); } function H(x, y, z) { return (x ^ y ^ z); } function I(x, y, z) { return (y ^ (x | (~z))); } function FF(a, b, c, d, x, s, ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function GG(a, b, c, d, x, s, ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function HH(a, b, c, d, x, s, ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function II(a, b, c, d, x, s, ac) { a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac)); return AddUnsigned(RotateLeft(a, s), b); } function ConvertToWordArray(string) { var lWordCount; var lMessageLength = string.length; var lNumberOfWords_temp1 = lMessageLength + 8; var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64; var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16; var lWordArray = Array(lNumberOfWords - 1); var lBytePosition = 0; var lByteCount = 0; while (lByteCount < lMessageLength) { lWordCount = (lByteCount - (lByteCount % 4)) / 4; lBytePosition = (lByteCount % 4) * 8; lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition)); lByteCount++; } lWordCount = (lByteCount - (lByteCount % 4)) / 4; lBytePosition = (lByteCount % 4) * 8; lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition); lWordArray[lNumberOfWords - 2] = lMessageLength << 3; lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29; return lWordArray; } function WordToHex(lValue) { var WordToHexValue = "", WordToHexValue_temp = "", lByte, lCount; for (lCount = 0; lCount <= 3; lCount++) { lByte = (lValue >>> (lCount * 8)) & 255; WordToHexValue_temp = "0" + lByte.toString(16); WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2); } return WordToHexValue; } function Utf8Encode(string) { var utftext = ""; for (var n = 0; n < string.length; n++) { var c = string.charCodeAt(n); if (c < 128) { utftext += String.fromCharCode(c); } else if ((c > 127) && (c < 2048)) { utftext += String.fromCharCode((c >> 6) | 192); utftext += String.fromCharCode((c & 63) | 128); } else { utftext += String.fromCharCode((c >> 12) | 224); utftext += String.fromCharCode(((c >> 6) & 63) | 128); utftext += String.fromCharCode((c & 63) | 128); } } return utftext; } return MD5 }()) //随机打乱 function amess(arrlength, ast) { var rand, temp; var arr = new Array(arrlength).fill(0).map( (a, b) => b); for (let i = arrlength - 1; i > 0; i -= 1) { rand = parseInt(md5(ast + i.toString()).substr(0, 7), 16) % (i + 1); temp = arr[rand]; arr[rand] = arr[i] arr[i] = temp; } return arr; } //块混淆 function encryptB2(img1, key, sx, sy) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var wid1 = wid; var hit1 = hit; var imgdata; var oimgdata; var xl = new Array(); var yl = new Array(); var k = 8; var m = 0; var n = 0; var ssx; var ssy; //缩放大小 if (wid * hit > SIZE) { wid = parseInt(Math.pow(SIZE * img1.width / img1.height, 1 / 2)); hit = parseInt(Math.pow(SIZE * img1.height / img1.width, 1 / 2)); } wid1 = wid; hit1 = hit; while (wid % sx > 0) { wid++ } while (hit % sy > 0) { hit++ } ssx = wid / sx; ssy = hit / sy; cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid1, hit1); cvd.drawImage(img1, 0, hit1, wid1, hit1); cvd.drawImage(img1, wid1, 0, wid1, hit1); cvd.drawImage(img1, wid1, hit1, wid1, hit1); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); xl = amess(sx, key); yl = amess(sy, key); for (let i = 0; i < wid; i++) { for (let j = 0; j < hit; j++) { m = i; n = j; m = (xl[((n / ssy) | 0) % sx] * ssx + m) % wid; m = xl[(m / ssx) | 0] * ssx + m % ssx; n = (yl[((m / ssx) | 0) % sy] * ssy + n) % hit; n = yl[(n / ssy) | 0] * ssy + n % ssy; oimgdata.data[4 * (i + j * wid)] = imgdata.data[4 * (m + n * wid)]; oimgdata.data[4 * (i + j * wid) + 1] = imgdata.data[4 * (m + n * wid) + 1]; oimgdata.data[4 * (i + j * wid) + 2] = imgdata.data[4 * (m + n * wid) + 2]; oimgdata.data[4 * (i + j * wid) + 3] = imgdata.data[4 * (m + n * wid) + 3]; } } cvd.putImageData(oimgdata, 0, 0); return [cv.toDataURL(), wid, hit] } function decryptB2(img1, key, sx, sy) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var wid1 = wid; var hit1 = hit; var imgdata; var oimgdata; var xl = new Array(); var yl = new Array(); var k = 8; var m = 0; var n = 0; var ssx; var ssy; wid1 = wid; hit1 = hit; while (wid % sx > 0) { wid++ } while (hit % sy > 0) { hit++ } ssx = wid / sx; ssy = hit / sy; cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid1, hit1); cvd.drawImage(img1, 0, hit1, wid1, hit1); cvd.drawImage(img1, wid1, 0, wid1, hit1); cvd.drawImage(img1, wid1, hit1, wid1, hit1); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); xl = amess(sx, key); yl = amess(sy, key); for (let i = 0; i < wid; i++) { for (let j = 0; j < hit; j++) { m = i; n = j; m = (xl[((n / ssy) | 0) % sx] * ssx + m) % wid; m = xl[(m / ssx) | 0] * ssx + m % ssx; n = (yl[((m / ssx) | 0) % sy] * ssy + n) % hit; n = yl[(n / ssy) | 0] * ssy + n % ssy; oimgdata.data[4 * (m + n * wid)] = imgdata.data[4 * (i + j * wid)]; oimgdata.data[4 * (m + n * wid) + 1] = imgdata.data[4 * (i + j * wid) + 1]; oimgdata.data[4 * (m + n * wid) + 2] = imgdata.data[4 * (i + j * wid) + 2]; oimgdata.data[4 * (m + n * wid) + 3] = imgdata.data[4 * (i + j * wid) + 3]; } } cvd.putImageData(oimgdata, 0, 0); return [cv.toDataURL(), wid, hit] } //算法C,逐像素混淆 function encryptC(img1, key) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var imgdata; var oimgdata; var xl = new Array(); var yl = new Array(); var m = 0; var n = 0; //缩放大小 if (wid * hit > SIZE) { wid = parseInt(Math.pow(SIZE * img1.width / img1.height, 1 / 2)); hit = parseInt(Math.pow(SIZE * img1.height / img1.width, 1 / 2)); } cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid, hit); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); xl = amess(wid, key); yl = amess(hit, key); for (let i = 0; i < wid; i++) { for (let j = 0; j < hit; j++) { m = i; n = j; m = (xl[n % wid] + m) % wid; m = xl[m]; n = (yl[m % hit] + n) % hit; n = yl[n]; oimgdata.data[4 * (i + j * wid)] = imgdata.data[4 * (m + n * wid)]; oimgdata.data[4 * (i + j * wid) + 1] = imgdata.data[4 * (m + n * wid) + 1]; oimgdata.data[4 * (i + j * wid) + 2] = imgdata.data[4 * (m + n * wid) + 2]; oimgdata.data[4 * (i + j * wid) + 3] = imgdata.data[4 * (m + n * wid) + 3]; } } cvd.putImageData(oimgdata, 0, 0); return [cv.toDataURL(), wid, hit] } function decryptC(img1, key) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var imgdata; var oimgdata; var xl = new Array(); var yl = new Array(); var m = 0; var n = 0; cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid, hit); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); xl = amess(wid, key); yl = amess(hit, key); for (let i = 0; i < wid; i++) { for (let j = 0; j < hit; j++) { m = i; n = j; m = (xl[n % wid] + m) % wid; m = xl[m]; n = (yl[m % hit] + n) % hit; n = yl[n]; oimgdata.data[4 * (m + n * wid)] = imgdata.data[4 * (i + j * wid)]; oimgdata.data[4 * (m + n * wid) + 1] = imgdata.data[4 * (i + j * wid) + 1]; oimgdata.data[4 * (m + n * wid) + 2] = imgdata.data[4 * (i + j * wid) + 2]; oimgdata.data[4 * (m + n * wid) + 3] = imgdata.data[4 * (i + j * wid) + 3]; } } cvd.putImageData(oimgdata, 0, 0); return [cv.toDataURL(), wid, hit] } //行像素混淆 function encryptC2(img1, key) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var imgdata; var oimgdata; var xl = new Array(); var yl = new Array(); var m = 0; var n = 0; //缩放大小 if (wid * hit > SIZE) { wid = parseInt(Math.pow(SIZE * img1.width / img1.height, 1 / 2)); hit = parseInt(Math.pow(SIZE * img1.height / img1.width, 1 / 2)); } cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid, hit); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); xl = amess(wid, key); yl = amess(hit, key); for (let i = 0; i < wid; i++) { for (let j = 0; j < hit; j++) { m = i; n = j; m = (xl[n % wid] + m) % wid; m = xl[m]; oimgdata.data[4 * (i + j * wid)] = imgdata.data[4 * (m + n * wid)]; oimgdata.data[4 * (i + j * wid) + 1] = imgdata.data[4 * (m + n * wid) + 1]; oimgdata.data[4 * (i + j * wid) + 2] = imgdata.data[4 * (m + n * wid) + 2]; oimgdata.data[4 * (i + j * wid) + 3] = imgdata.data[4 * (m + n * wid) + 3]; } } cvd.putImageData(oimgdata, 0, 0); return [cv.toDataURL(), wid, hit] } function decryptC2(img1, key) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var imgdata; var oimgdata; var xl = new Array(); var yl = new Array(); var m = 0; var n = 0; cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid, hit); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); xl = amess(wid, key); yl = amess(hit, key); for (let i = 0; i < wid; i++) { for (let j = 0; j < hit; j++) { m = i; n = j; m = (xl[n % wid] + m) % wid; m = xl[m]; oimgdata.data[4 * (m + n * wid)] = imgdata.data[4 * (i + j * wid)]; oimgdata.data[4 * (m + n * wid) + 1] = imgdata.data[4 * (i + j * wid) + 1]; oimgdata.data[4 * (m + n * wid) + 2] = imgdata.data[4 * (i + j * wid) + 2]; oimgdata.data[4 * (m + n * wid) + 3] = imgdata.data[4 * (i + j * wid) + 3]; } } cvd.putImageData(oimgdata, 0, 0); return [cv.toDataURL(), wid, hit] } //picencrypt算法 function produceLogisticSort(a, b) { return a[0] - b[0] } function produceLogistic(x1, n) { let l = new Array(n); let x = x1; l[0] = [x, 0]; for (let i = 1; i < n; i++) { x = 3.9999999 * x * (1 - x); l[i] = [x, i] } return l } //行混淆 function encryptPE1(img1, key) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var imgdata; var oimgdata; var arrayaddress = new Array(); var m = 0; var n = 0; //缩放大小 if (wid * hit > SIZE) { wid = parseInt(Math.pow(SIZE * img1.width / img1.height, 1 / 2)); hit = parseInt(Math.pow(SIZE * img1.height / img1.width, 1 / 2)); } cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid, hit); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); arrayaddress = produceLogistic(key, wid).sort(produceLogisticSort).map(x => x[1]); for (let i = 0; i < wid; i++) { for (let j = 0; j < hit; j++) { m = arrayaddress[i]; oimgdata.data[4 * (i + j * wid)] = imgdata.data[4 * (m + j * wid)]; oimgdata.data[4 * (i + j * wid) + 1] = imgdata.data[4 * (m + j * wid) + 1]; oimgdata.data[4 * (i + j * wid) + 2] = imgdata.data[4 * (m + j * wid) + 2]; oimgdata.data[4 * (i + j * wid) + 3] = imgdata.data[4 * (m + j * wid) + 3]; } } cvd.putImageData(oimgdata, 0, 0); return [cv.toDataURL(), wid, hit] } function decryptPE1(img1, key) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var imgdata; var oimgdata; var arrayaddress = new Array(); var m = 0; var n = 0; cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid, hit); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); arrayaddress = produceLogistic(key, wid).sort(produceLogisticSort).map(x => x[1]); for (let i = 0; i < wid; i++) { for (let j = 0; j < hit; j++) { m = arrayaddress[i]; oimgdata.data[4 * (m + j * wid)] = imgdata.data[4 * (i + j * wid)]; oimgdata.data[4 * (m + j * wid) + 1] = imgdata.data[4 * (i + j * wid) + 1]; oimgdata.data[4 * (m + j * wid) + 2] = imgdata.data[4 * (i + j * wid) + 2]; oimgdata.data[4 * (m + j * wid) + 3] = imgdata.data[4 * (i + j * wid) + 3]; } } cvd.putImageData(oimgdata, 0, 0); return [cv.toDataURL(), wid, hit] } //行+列混淆 function encryptPE2(img1, key) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var imgdata; var oimgdata; var o2imgdata; var arrayaddress = new Array(); var x = key; var m = 0; var n = 0; if (wid * hit > SIZE) { wid = parseInt(Math.pow(SIZE * img1.width / img1.height, 1 / 2)); hit = parseInt(Math.pow(SIZE * img1.height / img1.width, 1 / 2)); } cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid, hit); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); o2imgdata = cvd.createImageData(wid, hit); for (let j = 0; j < hit; j++) { arrayaddress = produceLogistic(x, wid); x = arrayaddress[wid - 1][0]; arrayaddress = arrayaddress.sort(produceLogisticSort).map(a => a[1]) for (let i = 0; i < wid; i++) { m = arrayaddress[i]; oimgdata.data[4 * (i + j * wid)] = imgdata.data[4 * (m + j * wid)]; oimgdata.data[4 * (i + j * wid) + 1] = imgdata.data[4 * (m + j * wid) + 1]; oimgdata.data[4 * (i + j * wid) + 2] = imgdata.data[4 * (m + j * wid) + 2]; oimgdata.data[4 * (i + j * wid) + 3] = imgdata.data[4 * (m + j * wid) + 3]; } } x = key; for (let i = 0; i < wid; i++) { arrayaddress = produceLogistic(x, hit); x = arrayaddress[hit - 1][0]; arrayaddress = arrayaddress.sort(produceLogisticSort).map(a => a[1]) for (let j = 0; j < hit; j++) { n = arrayaddress[j]; o2imgdata.data[4 * (i + j * wid)] = oimgdata.data[4 * (i + n * wid)]; o2imgdata.data[4 * (i + j * wid) + 1] = oimgdata.data[4 * (i + n * wid) + 1]; o2imgdata.data[4 * (i + j * wid) + 2] = oimgdata.data[4 * (i + n * wid) + 2]; o2imgdata.data[4 * (i + j * wid) + 3] = oimgdata.data[4 * (i + n * wid) + 3]; } } cvd.putImageData(o2imgdata, 0, 0); return [cv.toDataURL(), wid, hit] } function decryptPE2(img1, key) { var cv = document.createElement("canvas"); var cvd = cv.getContext("2d"); var wid = img1.naturalWidth; var hit = img1.naturalHeight; var imgdata; var oimgdata; var o2imgdata; var arrayaddress = new Array(); var x = key; var m = 0; var n = 0; cv.width = wid; cv.height = hit; cvd.drawImage(img1, 0, 0, wid, hit); imgdata = cvd.getImageData(0, 0, wid, hit); oimgdata = cvd.createImageData(wid, hit); o2imgdata = cvd.createImageData(wid, hit); for (let i = 0; i < wid; i++) { arrayaddress = produceLogistic(x, hit); x = arrayaddress[hit - 1][0]; arrayaddress = arrayaddress.sort(produceLogisticSort).map(a => a[1]) for (let j = 0; j < hit; j++) { n = arrayaddress[j]; oimgdata.data[4 * (i + n * wid)] = imgdata.data[4 * (i + j * wid)]; oimgdata.data[4 * (i + n * wid) + 1] = imgdata.data[4 * (i + j * wid) + 1]; oimgdata.data[4 * (i + n * wid) + 2] = imgdata.data[4 * (i + j * wid) + 2]; oimgdata.data[4 * (i + n * wid) + 3] = imgdata.data[4 * (i + j * wid) + 3]; } } x = key; for (let j = 0; j < hit; j++) { arrayaddress = produceLogistic(x, wid); x = arrayaddress[wid - 1][0]; arrayaddress = arrayaddress.sort(produceLogisticSort).map(a => a[1]) for (let i = 0; i < wid; i++) { m = arrayaddress[i]; o2imgdata.data[4 * (m + j * wid)] = oimgdata.data[4 * (i + j * wid)]; o2imgdata.data[4 * (m + j * wid) + 1] = oimgdata.data[4 * (i + j * wid) + 1]; o2imgdata.data[4 * (m + j * wid) + 2] = oimgdata.data[4 * (i + j * wid) + 2]; o2imgdata.data[4 * (m + j * wid) + 3] = oimgdata.data[4 * (i + j * wid) + 3]; } } cvd.putImageData(o2imgdata, 0, 0); return [cv.toDataURL(), wid, hit] } function selectMethod(event) { let select = event.target let keyInput = select.parentNode.querySelector('.key-input') if (!keyInput.value) { if (select.value == 'tomato') { keyInput.value = defaultTomatoKey } else { keyInput.value = defaultOtherKey } } if (select.value != 'tomato' && keyInput.value == defaultTomatoKey) { keyInput.value = defaultOtherKey } if (select.value == 'tomato' && keyInput.value == defaultOtherKey) { keyInput.value = defaultTomatoKey } } function resizeImage(img) { if (img.width < img.naturalWidth) { img.height = img.naturalHeight * img.width / img.naturalWidth } else if (img.height < img.naturalHeight) { img.width = img.naturalWidth * img.height / img.naturalHeight } } function pickImage(event) { if (event.target.files.length <= 0) { return } let container = event.target.parentNode let img = isOriginalPicPage ? document.querySelector('.image_original_original') : container.nextSibling if (!img) { return } let url = URL.createObjectURL(event.target.files[0]) img.src = url event.target.value = '' if (!isOriginalPicPage) { img.onload = ()=>resizeImage(img) return } } function encrypt(event) { let container = event.target.parentNode let img = isOriginalPicPage ? document.querySelector('.image_original_original') : container.nextSibling if (!img) { return } container.setAttribute('activated', 'true') let select = container.querySelector('.method-select') let msg = container.querySelector('.msg') let key = container.querySelector('.key-input').value if (!checkKeyValidity(select.value, key)) { let msg switch (select.value) { case 'tomato': msg = '小番茄算法仅支持大于0小于等于1.618的小数作为密钥' break case 'pe1': case 'pe2': msg = 'PicEncrypt算法仅支持大于0小于1的小数作为密钥' break default: msg = '' break } alert(msg) return } if (!first_config) { first_config = {method: select.value, key: key} document.querySelectorAll('.method-select').forEach(e=>{ let container = e.parentNode if (container.getAttribute('activated') == 'true') { return } e.value = select.value let keyInput = container.querySelector('.key-input') keyInput.value = key }) } let delay = 100 if (!img.crossOrigin) { img.crossOrigin = 'anonymous' } img.style.display = 'none' msg.style.display = '' setTimeout(()=>{ console.time() switch (select.value) { case 'tomato': encryptTomato(img, key) break case 'b': img.src = encryptB2(img, key, 32, 32)[0] break case 'c2': img.src = encryptC2(img, key)[0] break case 'c': img.src = encryptC(img, key)[0] break case 'pe1': img.src = encryptPE1(img, key)[0] break case 'pe2': img.src = encryptPE2(img, key)[0] break } console.timeEnd() resizeImage(img) img.style.display = 'inline-block' msg.style.display = 'none' }, delay) } function decrypt(event) { let container = event.target.parentNode let img = isOriginalPicPage ? document.querySelector('.image_original_original') : container.nextSibling if (!img) { return } container.setAttribute('activated', 'true') let select = container.querySelector('.method-select') let msg = container.querySelector('.msg') let key = container.querySelector('.key-input').value if (!checkKeyValidity(select.value, key)) { let msg switch (select.value) { case 'tomato': msg = '小番茄算法仅支持大于0小于等于1.618的小数作为密钥' break case 'pe1': case 'pe2': msg = 'PicEncrypt算法仅支持大于0小于1的小数作为密钥' break default: msg = '' break } alert(msg) return } if (!first_config) { first_config = {method: select.value, key: key} document.querySelectorAll('.method-select').forEach(e=>{ let container = e.parentNode if (container.getAttribute('activated') == 'true') { return } e.value = select.value let keyInput = container.querySelector('.key-input') keyInput.value = key }) } let delay = 100 if (!img.crossOrigin) { img.crossOrigin = 'anonymous' } img.style.display = 'none' msg.style.display = '' setTimeout(()=>{ console.time() switch (select.value) { case 'tomato': decryptTomato(img, key) break case 'b': img.src = decryptB2(img, key, 32, 32)[0] break case 'c2': img.src = decryptC2(img, key)[0] break case 'c': img.src = decryptC(img, key)[0] break case 'pe1': img.src = decryptPE1(img, key)[0] break case 'pe2': img.src = decryptPE2(img, key)[0] break } console.timeEnd() resizeImage(img) img.style.display = 'inline-block' msg.style.display = 'none' }, delay) } function restore(event) { let container = event.target.parentNode let img = isOriginalPicPage ? document.querySelector('.image_original_original') : container.nextSibling if (!img) { return } if (isOriginalPicPage) { img.src = img.getAttribute('origin_url') img.width = img.naturalWidth img.height = img.naturalHeight } else { let id = img.getAttribute('pic_id') img.src = pic_list[id].url img.width = pic_list[id].width img.height = pic_list[id].height } resizeImage(img) } function download(event) { let container = event.target.parentNode let img = isOriginalPicPage ? document.querySelector('.image_original_original') : container.nextSibling if (!img) { return } let image = new Image(); image.src = img.src; image.setAttribute("crossOrigin", "anonymous"); image.onload = function() { let a = document.createElement("a"); a.download = Date.now() + ".png" if (img.src.startsWith('blob:') || img.src.startsWith('data:')) { a.href = image.src } else { let canvas = document.createElement("canvas"); canvas.width = image.naturalWidth; canvas.height = image.naturalHeight; canvas.getContext("2d").drawImage(image, 0, 0, image.width, image.height); a.href = canvas.toDataURL({format: 'png', quality: 1}); } a.click(); } } // 添加用户界面 function addButton(img) { let container = document.createElement('div') container.className = 'pic-decrypt-container' container.innerHTML = `
` let styleHTML = ` ` document.querySelector('head').innerHTML += styleHTML if (isOriginalPicPage) { let div = document.querySelector('.af_reply_container #af_reply_editor') if (!div) { return } div.parentNode.insertBefore(container, div) } else { let pic_id = img.getAttribute('pic_id') img.src = pic_list[pic_id].url img.parentNode.insertBefore(container, img) } if (first_config) { container.querySelector('select').value = first_config.method let keyInput = container.querySelector('.key-input') keyInput.value = first_config.key } let pickImageInput = container.querySelector('.pick-image') container.querySelector('.pick-image-btn').onclick = ()=>pickImageInput.click() container.querySelector('.pick-image').onchange = pickImage container.querySelector('select').onchange = selectMethod container.querySelector('.encrypt').onclick = encrypt container.querySelector('.decrypt').onclick = decrypt container.querySelector('.restore').onclick = restore container.querySelector('.download').onclick = download container.querySelector('.up').parentElement.onclick = ()=>scrollToNextImage(true) container.querySelector('.down').parentElement.onclick = ()=>scrollToNextImage(false) } // 获取某个帖子中某一页的所有原图链接 function loadPicList(tid) { let kw = (document.querySelector('.card_head a') || location).href.match(/kw=[%\w]+&/g) if (kw == null) { return } kw = kw[0].substring(3, kw[0].length-1) document.querySelectorAll('.BDE_Image').forEach(img=>{ if (img.previousElementSibling && img.previousElementSibling.classList.contains('pic-decrypt-container')) { return } let pic_id = img.src.match(/\/[a-f0-9]*\.jpg/g) if (pic_id == null) { return } pic_id = pic_id[0].substring(1, pic_id[0].length-4) img.setAttribute('pic_id', pic_id) let guideUrl = `https://tieba.baidu.com/photo/bw/picture/guide?kw=${kw}&tid=${tid}&alt=jview&see_lz=0&pic_id=${pic_id}` let xhr = new XMLHttpRequest() xhr.open('GET', guideUrl, true) xhr.onreadystatechange = ()=>{ if (xhr.readyState != 4 || xhr.status != 200) { return } let response = JSON.parse(xhr.response) Object.values(response.data.pic_list).forEach(imgSrc=>{ let original = imgSrc.img.original pic_list[original.id] = {'url': original.url || original.waterurl, 'width': original.width, 'height': original.height} }) guideUrl = `https://tieba.baidu.com/photo/bw/picture/guide?kw=${kw}&tid=${tid}&alt=jview&see_lz=1&pic_id=${pic_id}` xhr.open('GET', guideUrl, true) xhr.onreadystatechange = ()=>{ if (xhr.readyState != 4 || xhr.status != 200) { return } let response = JSON.parse(xhr.response) Object.values(response.data.pic_list).forEach(imgSrc=>{ let original = imgSrc.img.original pic_list[original.id] = {'url': original.url || original.waterurl, 'width': original.width, 'height': original.height} }) if (!img.previousElementSibling || !img.previousElementSibling.classList.contains('pic-decrypt-container')) { addButton(img) } } xhr.send() } xhr.send() }) } // 获取元素上缘到页面顶端的距离 function getElementTop(element){ var actualTop = element.offsetTop; var current = element.offsetParent; while (current !== null){ actualTop += current. offsetTop; current = current.offsetParent; } return actualTop; } // 获取距离浏览器可视区垂直中点最近的图片 function getCenterImg() { let minDelta = 100000000 let centerImg = null let viewPortHeight = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight let centerScrollTop = document.documentElement.scrollTop + viewPortHeight / 2 let images = document.querySelectorAll('.BDE_Image') for (let i = 0; i < images.length; ++i) { let img = images[i] let top let bottom if (img.parentElement.classList.contains('replace_div')) { top = getElementTop(img.parentElement) bottom = top + img.parentElement.clientHeight } else { top = getElementTop(img) bottom = top + img.height } let delta = Math.abs((top + bottom)/2 - centerScrollTop) if (delta < minDelta) { centerImg = img minDelta = delta } else { break } } return centerImg } // 获取距离浏览器可视区域垂直中点最近且位于可视区内的图片 function getFocusImg() { let viewPortHeight = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight let centerScrollTop = document.documentElement.scrollTop + viewPortHeight / 2 let images = document.querySelectorAll('.BDE_Image') for (let i = 0; i < images.length; ++i) { let img = images[i] let top let bottom if (img.parentElement.classList.contains('replace_div')) { top = getElementTop(img.parentElement) bottom = top + img.parentElement.clientHeight } else { top = getElementTop(img) bottom = top + img.height } if (centerScrollTop < top && document.documentElement.scrollTop + viewPortHeight > top) { return img } else if (top > document.documentElement.scrollTop + viewPortHeight || bottom < document.documentElement.scrollTop) { continue } else if (centerScrollTop >= top && centerScrollTop <= bottom) { return img } else if (i < images.length - 1) { return centerScrollTop - bottom <= getElementTop(images[i+1].parentElement) - centerScrollTop ? img : images[i+1] } else if (bottom > document.documentElement.scrollTop) { return img } } return null } function checkKeyValidity(method, key) { switch (method) { case 'tomato': try { return parseFloat(key) > 0 && parseFloat(key) <= 1.618 } catch (e) { return false } case 'pe1': case 'pe2': try { return parseFloat(key) > 0 && parseFloat(key) < 1 } catch (e) { return false } default: return true } } function scrollToNextImage(isReverse) { if (isOriginalPicPage) { document.querySelector(isReverse ? '.image_original_prev' : '.image_original_next').click() } else { let images = document.querySelectorAll('.BDE_Image') let centerImg = getCenterImg() for (let i = 0; i < images.length; ++i) { if (!images[i].isEqualNode(centerImg)) { continue } let scroll if (isReverse) { if (i > 0) { scroll = getElementTop(images[i-1].previousElementSibling) } else { scroll = getElementTop(centerImg.previousElementSibling) } } else { let top = getElementTop(centerImg.previousElementSibling) if (Math.abs(top - 60 - document.documentElement.scrollTop) > 50) { scroll = top } else if (i < images.length - 1) { scroll = getElementTop(images[i+1].previousElementSibling) } else { scroll = getElementTop(centerImg.previousElementSibling) } } if (scroll > 60) { scroll -= 60 } document.documentElement.scrollTo({top: scroll, behavior: 'smooth'}) break } } } function removeLoginBox() { let login = document.getElementById('tiebaCustomPassLogin') if (login) { login.remove() return true } return false } function main() { if (!removeLoginBox()) { setTimeout(removeLoginBox, 500) } function onChangedPage() { setTimeout(()=>document.querySelectorAll('.l_posts_num a, .l_posts_num span, .l_posts_num button').forEach(e=>e.onclick = ()=>{ setTimeout(()=>{ removeLoginBox() onChangedPage() }, 500) }), 500) } onChangedPage() let tid = location.href.match(/tieba\.baidu\.com\/p\/\d+/g) isOriginalPicPage = false if (tid == null) { if (location.href.match(/tieba\.baidu\.com\/photo\/p\?/g) == null) { return } else { tid = new URLSearchParams(location.href.split('?')[1]).get('tid') if (tid == null) { return } } isOriginalPicPage = true } else { tid = tid[0].substr(18) } // 查看原图的页面 if (isOriginalPicPage) { let id = setInterval(()=>{ let img = document.querySelector('.image_original_original') let div = document.querySelector('.af_reply_container #af_reply_editor') if (!img || !div) { return } clearInterval(id) addButton(img) function onImageChanged() { setTimeout(()=>{ let img = document.querySelector('.image_original_original') if (!img.src.startsWith('blob:') && !img.src.startsWith('data:')) { img.setAttribute('origin_url', img.src) } }, 80) } window.onclick = onImageChanged img.parentNode.onmousewheel = onImageChanged setInterval(()=>{ let img = document.querySelector('.image_original_original') if (!img || img.classList.contains('ui-draggable')) { return } if (Math.abs(img.width / img.naturalWidth - img.height / img.naturalHeight) < 0.05 && Math.abs(img.width - img.naturalWidth) / img.naturalWidth < 0.05) { return } let width = img.naturalWidth let height = img.naturalHeight let imgParent = img.parentNode if (width > imgParent.clientWidth) { width = imgParent.clientWidth height = height * width / img.naturalWidth } if (height > imgParent.clientHeight) { width = width * imgParent.clientHeight / height height = imgParent.clientHeight } img.style.width = width + 'px' img.style.height = height + 'px' img.style.left = (imgParent.clientWidth - width) / 2 + 'px' img.style.top = (imgParent.clientHeight - height) / 2 + 'px' }, 1000) }, 500) } else { // 具体某个帖子的页面 loadPicList(tid) setInterval(()=>{ loadPicList(tid) }, 2000) } // 添加快捷键 // 切换混淆方法(Method) M // 反向切换混淆方法 Shift + M // 输入密钥(Key) K // 确定密钥 Enter // 选择图片(Pick image) P // 混淆(Encrypt) E // 解混淆(Decrypt) D // 还原(Restore) R // 保存(Save) S window.onkeypress = (event)=>{ let container if (isOriginalPicPage) { if (event.code == 'ArrowLeft' || event.code == 'ArrowRight') { onImageChanged() } if (document.activeElement.classList.contains('j_ed_container') || document.activeElement.classList.contains('.key-input')) { return } container = document.querySelector('.pic-decrypt-container') } else { if (event.target.id == 'j_editor_for_container' || event.target.id == 'ueditor_replace' || event.target.classList.contains('j_search_input')) { return } let focusImg = getFocusImg() if (!focusImg && event.code != 'KeyN') { return } let centerImg = getCenterImg() if (!centerImg || centerImg.previousElementSibling && !centerImg.previousElementSibling.classList.contains('pic-decrypt-container')) { return } container = centerImg.previousElementSibling } let select = container.querySelector('.method-select') let options = select.children switch (event.code) { case 'KeyM': for (let i = 0; i < options.length; ++i) { if (options[event.shiftKey ? options.length-i-1 : i].value == select.value) { select.value = options[event.shiftKey ? options.length-(i+1)%options.length-1 : (i+1)%options.length].value let keyInput = container.querySelector('.key-input') if (select.value == 'tomato') { keyInput.value = defaultTomatoKey } else { keyInput.value = defaultOtherKey } break } } break case 'KeyD': container.querySelector('.decrypt').click() break case 'KeyE': container.querySelector('.encrypt').click() break case 'KeyR': container.querySelector('.restore').click() break case 'KeyP': container.querySelector('.pick-image').click() break case 'KeyS': container.querySelector('.download').click() break case 'KeyK': setTimeout(()=>container.querySelector('.key-input').focus(), 100) break case 'Enter': case 'NumpadEnter': container.querySelector('.key-input').blur() break case 'KeyN': scrollToNextImage(event.shiftKey) break } } } main()