森蓝小程序

utils/uploadToAliOss/Base64.js

@@ -0,0 +1,132 @@
+const Base64 = {
+
+    // private property
+    _keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
+
+    // public method for encoding
+    encode: function (input) {
+        var output = "";
+        var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
+        var i = 0;
+
+        input = Base64._utf8_encode(input);
+
+        while (i < input.length) {
+
+            chr1 = input.charCodeAt(i++);
+            chr2 = input.charCodeAt(i++);
+            chr3 = input.charCodeAt(i++);
+
+            enc1 = chr1 >> 2;
+            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
+            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
+            enc4 = chr3 & 63;
+
+            if (isNaN(chr2)) {
+                enc3 = enc4 = 64;
+            } else if (isNaN(chr3)) {
+                enc4 = 64;
+            }
+
+            output = output +
+                this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
+                this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
+
+        }
+
+        return output;
+    },
+
+    // public method for decoding
+    decode: function (input) {
+        var output = "";
+        var chr1, chr2, chr3;
+        var enc1, enc2, enc3, enc4;
+        var i = 0;
+
+        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+
+        while (i < input.length) {
+
+            enc1 = this._keyStr.indexOf(input.charAt(i++));
+            enc2 = this._keyStr.indexOf(input.charAt(i++));
+            enc3 = this._keyStr.indexOf(input.charAt(i++));
+            enc4 = this._keyStr.indexOf(input.charAt(i++));
+
+            chr1 = (enc1 << 2) | (enc2 >> 4);
+            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+            chr3 = ((enc3 & 3) << 6) | enc4;
+
+            output = output + String.fromCharCode(chr1);
+
+            if (enc3 != 64) {
+                output = output + String.fromCharCode(chr2);
+            }
+            if (enc4 != 64) {
+                output = output + String.fromCharCode(chr3);
+            }
+
+        }
+
+        output = Base64._utf8_decode(output);
+
+        return output;
+
+    },
+
+    // private method for UTF-8 encoding
+    _utf8_encode: function (string) {
+        string = string.replace(/\r\n/g, "\n");
+        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;
+    },
+
+    // private method for UTF-8 decoding
+    _utf8_decode: function (utftext) {
+        var string = "";
+        var i = 0;
+        var c = c1 = c2 = 0;
+
+        while (i < utftext.length) {
+
+            c = utftext.charCodeAt(i);
+
+            if (c < 128) {
+                string += String.fromCharCode(c);
+                i++;
+            } else if ((c > 191) && (c < 224)) {
+                c2 = utftext.charCodeAt(i + 1);
+                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
+                i += 2;
+            } else {
+                c2 = utftext.charCodeAt(i + 1);
+                c3 = utftext.charCodeAt(i + 2);
+                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+                i += 3;
+            }
+
+        }
+
+        return string;
+    }
+}
+
+module.exports = Base64;

utils/uploadToAliOss/config.js

@@ -0,0 +1,8 @@
+var config = {
+  //aliyun OSS config
+  uploadImageUrl: `https://ai-travel-dev.oss-cn-beijing.aliyuncs.com`,
+  AccessKeySecret: 'JfBWY38IU3FZUaTCt1kgCPALXbbJdM',
+  OSSAccessKeyId: 'LTAI5tS8qY4qpk3Bm87frDwk',
+  timeout: 1*60*1000 ,
+};
+module.exports = config

utils/uploadToAliOss/crypto.js

@@ -0,0 +1,185 @@
+/*!
+ * Crypto-JS v1.1.0
+ * http://code.google.com/p/crypto-js/
+ * Copyright (c) 2009, Jeff Mott. All rights reserved.
+ * http://code.google.com/p/crypto-js/wiki/License
+ */
+
+const Crypto = {};
+
+(function(){
+
+var base64map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+
+// Crypto utilities
+var util = Crypto.util = {
+
+	// Bit-wise rotate left
+	rotl: function (n, b) {
+		return (n << b) | (n >>> (32 - b));
+	},
+
+	// Bit-wise rotate right
+	rotr: function (n, b) {
+		return (n << (32 - b)) | (n >>> b);
+	},
+
+	// Swap big-endian to little-endian and vice versa
+	endian: function (n) {
+
+		// If number given, swap endian
+		if (n.constructor == Number) {
+			return util.rotl(n,  8) & 0x00FF00FF |
+			       util.rotl(n, 24) & 0xFF00FF00;
+		}
+
+		// Else, assume array and swap all items
+		for (var i = 0; i < n.length; i++)
+			n[i] = util.endian(n[i]);
+		return n;
+
+	},
+
+	// Generate an array of any length of random bytes
+	randomBytes: function (n) {
+		for (var bytes = []; n > 0; n--)
+			bytes.push(Math.floor(Math.random() * 256));
+		return bytes;
+	},
+
+	// Convert a string to a byte array
+	stringToBytes: function (str) {
+		var bytes = [];
+		for (var i = 0; i < str.length; i++)
+			bytes.push(str.charCodeAt(i));
+		return bytes;
+	},
+
+	// Convert a byte array to a string
+	bytesToString: function (bytes) {
+		var str = [];
+		for (var i = 0; i < bytes.length; i++)
+			str.push(String.fromCharCode(bytes[i]));
+		return str.join("");
+	},
+
+	// Convert a string to big-endian 32-bit words
+	stringToWords: function (str) {
+		var words = [];
+		for (var c = 0, b = 0; c < str.length; c++, b += 8)
+			words[b >>> 5] |= str.charCodeAt(c) << (24 - b % 32);
+		return words;
+	},
+
+	// Convert a byte array to big-endian 32-bits words
+	bytesToWords: function (bytes) {
+		var words = [];
+		for (var i = 0, b = 0; i < bytes.length; i++, b += 8)
+			words[b >>> 5] |= bytes[i] << (24 - b % 32);
+		return words;
+	},
+
+	// Convert big-endian 32-bit words to a byte array
+	wordsToBytes: function (words) {
+		var bytes = [];
+		for (var b = 0; b < words.length * 32; b += 8)
+			bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
+		return bytes;
+	},
+
+	// Convert a byte array to a hex string
+	bytesToHex: function (bytes) {
+		var hex = [];
+		for (var i = 0; i < bytes.length; i++) {
+			hex.push((bytes[i] >>> 4).toString(16));
+			hex.push((bytes[i] & 0xF).toString(16));
+		}
+		return hex.join("");
+	},
+
+	// Convert a hex string to a byte array
+	hexToBytes: function (hex) {
+		var bytes = [];
+		for (var c = 0; c < hex.length; c += 2)
+			bytes.push(parseInt(hex.substr(c, 2), 16));
+		return bytes;
+	},
+
+	// Convert a byte array to a base-64 string
+	bytesToBase64: function (bytes) {
+
+		// Use browser-native function if it exists
+		if (typeof btoa == "function") return btoa(util.bytesToString(bytes));
+
+		var base64 = [],
+		    overflow;
+
+		for (var i = 0; i < bytes.length; i++) {
+			switch (i % 3) {
+				case 0:
+					base64.push(base64map.charAt(bytes[i] >>> 2));
+					overflow = (bytes[i] & 0x3) << 4;
+					break;
+				case 1:
+					base64.push(base64map.charAt(overflow | (bytes[i] >>> 4)));
+					overflow = (bytes[i] & 0xF) << 2;
+					break;
+				case 2:
+					base64.push(base64map.charAt(overflow | (bytes[i] >>> 6)));
+					base64.push(base64map.charAt(bytes[i] & 0x3F));
+					overflow = -1;
+			}
+		}
+
+		// Encode overflow bits, if there are any
+		if (overflow != undefined && overflow != -1)
+			base64.push(base64map.charAt(overflow));
+
+		// Add padding
+		while (base64.length % 4 != 0) base64.push("=");
+
+		return base64.join("");
+
+	},
+
+	// Convert a base-64 string to a byte array
+	base64ToBytes: function (base64) {
+
+		// Use browser-native function if it exists
+		if (typeof atob == "function") return util.stringToBytes(atob(base64));
+
+		// Remove non-base-64 characters
+		base64 = base64.replace(/[^A-Z0-9+\/]/ig, "");
+
+		var bytes = [];
+
+		for (var i = 0; i < base64.length; i++) {
+			switch (i % 4) {
+				case 1:
+					bytes.push((base64map.indexOf(base64.charAt(i - 1)) << 2) |
+					           (base64map.indexOf(base64.charAt(i)) >>> 4));
+					break;
+				case 2:
+					bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0xF) << 4) |
+					           (base64map.indexOf(base64.charAt(i)) >>> 2));
+					break;
+				case 3:
+					bytes.push(((base64map.indexOf(base64.charAt(i - 1)) & 0x3) << 6) |
+					           (base64map.indexOf(base64.charAt(i))));
+					break;
+			}
+		}
+
+		return bytes;
+
+	}
+
+};
+
+// Crypto mode namespace
+Crypto.mode = {};
+
+})();
+
+module.exports = Crypto;

utils/uploadToAliOss/hmac.js

@@ -0,0 +1,41 @@
+/*!
+ * Crypto-JS v1.1.0
+ * http://code.google.com/p/crypto-js/
+ * Copyright (c) 2009, Jeff Mott. All rights reserved.
+ * http://code.google.com/p/crypto-js/wiki/License
+ */
+
+const Crypto = require('./crypto.js');
+
+(function(){
+
+// Shortcut
+var util = Crypto.util;
+
+Crypto.HMAC = function (hasher, message, key, options) {
+
+	// Allow arbitrary length keys
+	key = key.length > hasher._blocksize * 4 ?
+	      hasher(key, { asBytes: true }) :
+	      util.stringToBytes(key);
+
+	// XOR keys with pad constants
+	var okey = key,
+	    ikey = key.slice(0);
+	for (var i = 0; i < hasher._blocksize * 4; i++) {
+		okey[i] ^= 0x5C;
+		ikey[i] ^= 0x36;
+	}
+
+	var hmacbytes = hasher(util.bytesToString(okey) +
+	                       hasher(util.bytesToString(ikey) + message, { asString: true }),
+	                       { asBytes: true });
+	return options && options.asBytes ? hmacbytes :
+	       options && options.asString ? util.bytesToString(hmacbytes) :
+	       util.bytesToHex(hmacbytes);
+
+};
+
+})();
+
+module.exports = Crypto;

utils/uploadToAliOss/sha1.js

@@ -0,0 +1,86 @@
+/*!
+ * Crypto-JS v1.1.0
+ * http://code.google.com/p/crypto-js/
+ * Copyright (c) 2009, Jeff Mott. All rights reserved.
+ * http://code.google.com/p/crypto-js/wiki/License
+ */
+
+const Crypto = require('./crypto.js');
+
+(function(){
+
+// Shortcut
+var util = Crypto.util;
+
+// Public API
+var SHA1 = Crypto.SHA1 = function (message, options) {
+	var digestbytes = util.wordsToBytes(SHA1._sha1(message));
+	return options && options.asBytes ? digestbytes :
+	       options && options.asString ? util.bytesToString(digestbytes) :
+	       util.bytesToHex(digestbytes);
+};
+
+// The core
+SHA1._sha1 = function (message) {
+
+	var m  = util.stringToWords(message),
+	    l  = message.length * 8,
+	    w  =  [],
+	    H0 =  1732584193,
+	    H1 = -271733879,
+	    H2 = -1732584194,
+	    H3 =  271733878,
+	    H4 = -1009589776;
+
+	// Padding
+	m[l >> 5] |= 0x80 << (24 - l % 32);
+	m[((l + 64 >>> 9) << 4) + 15] = l;
+
+	for (var i = 0; i < m.length; i += 16) {
+
+		var a = H0,
+		    b = H1,
+		    c = H2,
+		    d = H3,
+		    e = H4;
+
+		for (var j = 0; j < 80; j++) {
+
+			if (j < 16) w[j] = m[i + j];
+			else {
+				var n = w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16];
+				w[j] = (n << 1) | (n >>> 31);
+			}
+
+			var t = ((H0 << 5) | (H0 >>> 27)) + H4 + (w[j] >>> 0) + (
+			         j < 20 ? (H1 & H2 | ~H1 & H3) + 1518500249 :
+			         j < 40 ? (H1 ^ H2 ^ H3) + 1859775393 :
+			         j < 60 ? (H1 & H2 | H1 & H3 | H2 & H3) - 1894007588 :
+			                  (H1 ^ H2 ^ H3) - 899497514);
+
+			H4 =  H3;
+			H3 =  H2;
+			H2 = (H1 << 30) | (H1 >>> 2);
+			H1 =  H0;
+			H0 =  t;
+
+		}
+
+		H0 += a;
+		H1 += b;
+		H2 += c;
+		H3 += d;
+		H4 += e;
+
+	}
+
+	return [H0, H1, H2, H3, H4];
+
+};
+
+// Package private blocksize
+SHA1._blocksize = 16;
+
+})();
+
+module.exports = Crypto;

utils/uploadToAliOss/uploadAliyun.js

@@ -0,0 +1,86 @@
+const env = require('./config.js');
+
+const Base64 = require('./Base64.js');
+
+require('./hmac.js');
+require('./sha1.js');
+const Crypto = require('./crypto.js');
+
+
+const uploadFile = function (params) {
+    if (!params.filePath) {
+        wx.showModal({
+            title: '文件错误',
+            content: '请重新上传文件',
+            showCancel: false,
+        })
+        return;
+    }
+
+    //阿里云指定文件夹
+    const aliyunFileKey = params.dir + new Date().getTime() + Math.floor(Math.random() * 150) + params.type;
+    const aliyunServerURL = env.uploadImageUrl;
+    const accessid = env.OSSAccessKeyId;
+    const policyBase64 = getPolicyBase64();
+    const signature = getSignature(policyBase64);
+
+    // console.log('aliyunFileKey=', aliyunFileKey);
+    // console.log('aliyunServerURL', aliyunServerURL);
+    wx.uploadFile({
+        url: aliyunServerURL,
+        filePath: params.filePath,
+        name: 'file',
+        formData: {
+            'key': aliyunFileKey,
+            'policy': policyBase64,
+            'OSSAccessKeyId': accessid,
+            'signature': signature,
+            'success_action_status': '200',
+        },
+        success: function (res) {
+            if (res.statusCode != 200) {
+                if (params.fail) {
+                    params.fail(res)
+                }
+                return;
+            }
+            if (params.success) {
+                params.success(aliyunFileKey);
+            }
+        },
+        fail: function (err) {
+            err.wxaddinfo = aliyunServerURL;
+            if (params.fail) {
+                params.fail(err)
+            }
+        },
+    })
+}
+
+const getPolicyBase64 = function () {
+    let date = new Date();
+    date.setHours(date.getHours() + env.timeout);
+    let srcT = date.toISOString();
+    const policyText = {
+        "expiration": srcT, //设置该Policy的失效时间
+        "conditions": [
+            ["content-length-range", 0, 1024 * 1024 * 1024 * 1024] // 设置上传文件的大小限制
+        ]
+    };
+
+    const policyBase64 = Base64.encode(JSON.stringify(policyText));
+    return policyBase64;
+}
+
+const getSignature = function (policyBase64) {
+    const accesskey = env.AccessKeySecret;
+
+    const bytes = Crypto.HMAC(Crypto.SHA1, policyBase64, accesskey, {
+        asBytes: true
+    });
+    const signature = Crypto.util.bytesToBase64(bytes);
+
+    return signature;
+}
+
+module.exports = uploadFile;