Sanaar download excel injector

sanaar-download-excel-injector.js

// sanaar\.ir/supervisor/assignment

div = document.createElement('div')
div.innerHTML = '<div class="panel-toolbar"><button class="btn btn-outline-info waves-effect waves-themed btn-sm mr-1" type="button" data-download="excel" onclick="downloadExcel22()"><span><i class="fal fa-file-excel mr-1"></i> دانلود اکسل</span></button></div>'
document.querySelector('.panel-hdr').append(div.firstChild)

async function downloadExcel22() {
    const pl = document.querySelectorAll('.page-link')
    const pages = +pl[pl.length - 1].dataset.page
    const t = await Promise.all(new Array(pages).fill(0).map((_, i) => fetch(`https://sanaar.ir/supervisor/assignment/page/${i + 1}/${location.search}`).then(r => r.text())))
    const data = '\ufeff' + t
        .map(s => new DOMParser().parseFromString(s, "text/html"))
        .flatMap(doc => {
            const a = [...doc.querySelectorAll('table tr')]
            return a.slice(1, a.length - 1).map(i => {
                const b = [...i.children]
                return b.slice(1, b.length - 1).map(j => `"${j.textContent}"`).join(',')
            })
        })
        .join("\n")
    const blob = new Blob([data], {type: 'text/csv'})
    const elem = document.createElement('a')
    elem.href = URL.createObjectURL(blob)
    elem.download = 'پایش.csv'
    document.body.appendChild(elem)
    elem.click()
    document.body.removeChild(elem)
}