/** * 此方法用于将Json内容的Unicode编解码 * @param {Object} text */ window.JsonEnDecode = { uniEncode: function (str) { return escape(str) .replace(/%u/gi, '\\u') .replace(/%7b/gi, '{') .replace(/%7d/gi, '}') .replace(/%3a/gi, ':') .replace(/%2c/gi, ',') .replace(/%27/gi, '\'') .replace(/%22/gi, '"') .replace(/%5b/gi, '[') .replace(/%5d/gi, ']') .replace(/%3D/gi, '=') .replace(/%08/gi, '\b') .replace(/%0D/gi, '\r') .replace(/%0C/gi, '\f') .replace(/%09/gi, '\t') .replace(/%20/gi, ' ') .replace(/%0A/gi, '\n') .replace(/%3E/gi, '>') .replace(/%3C/gi, '<') .replace(/%3F/gi, '?'); }, uniDecode: function (text) { text = text.replace(/(\\)?\\u/gi, "%u").replace('%u0025', '%25'); text = unescape(text.toString().replace(/%2B/g, "+")); let matches = text.match(/(%u00([0-9A-F]{2}))/gi); if (matches) { for (let matchid = 0; matchid < matches.length; matchid++) { let code = matches[matchid].substring(1, 3); let x = Number("0x" + code); if (x >= 128) { text = text.replace(matches[matchid], code); } } } text = unescape(text.toString().replace(/%2B/g, "+")); return text; }, urlDecode: function (str) { try { return decodeURIComponent(str); } catch (e) { return str; } }, // 此种模式，随便用 urlDecodeByFetch: function (str) { return new Promise((resolve, reject) => { try { fetch(`data:text/javascript;charset=utf8,${str.replace(/"/g, '%22').replace(/#/g, '%23')}`) .then(res => res.text(), error => { reject && reject(error); }) .then(text => { resolve && resolve(text); }); } catch (e) { resolve && resolve(str); } }); }, // 此种形式需要在manifest中增加csp策略，暂且不用 urlDecodeByIframe: function (str, charset) { charset = charset || 'utf8'; return new Promise((resolve, reject) => { let iframe = document.querySelector('#_urlDecode_iframe_'); if (iframe) { iframe.remove(); } iframe = document.createElement('iframe'); iframe.setAttribute('id', '_urlDecode_iframe_'); iframe.style.display = 'none'; iframe.width = "0"; iframe.height = "0"; iframe.scrolling = "no"; iframe.allowtransparency = "true"; iframe.frameborder = "0"; iframe.src = 'about:blank'; document.body.appendChild(iframe); window._urlDecodeCallback = window._urlDecodeCallback || function (e) { resolve && resolve(e.data); iframe.remove(); }; window.removeEventListener('message', window._urlDecodeCallback); window.addEventListener('message', window._urlDecodeCallback, false); try { iframe.contentWindow.document.write(''); } catch (e) { reject && reject(e); } }); } };