code365scripts.weixin.psm1
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<# .SYNOPSIS 备份微信公众号文章 .DESCRIPTION 备份微信公众号文章，保存在本地一个目录中，用JSON格式保存，每个文件保存20篇文章 .EXAMPLE PS C:\> Save-WeixinNews -AppId xxxxxxxxx -AppSecret xxxxxxxx -Folder d:\temp\news 请自行准备AppId和AppSecret，并且注意，要把本机的IP地址添加到白名单中，请参考 https://mp.weixin.qq.com/cgi-bin/announce?action=getannouncement&key=1495617578&version=1&lang=zh_CN&platform=2&token=908727256 .LINK https://github.com/code365opensource/code365scripts/tree/master/code365scripts.weixin #> function Save-WeixinNews { [CmdletBinding(DefaultParameterSetName = "Normal")] param ( [Parameter(Mandatory = $true, ParameterSetName = "Normal")] [Parameter(Mandatory = $true, ParameterSetName = "Profile")] [string]$Folder, [Parameter(Mandatory = $true, ParameterSetName = "Normal")] [string]$AppId, [Parameter(Mandatory = $true, ParameterSetName = "Normal")] [string]$AppSecret # [Parameter(Mandatory = $true, ParameterSetName = "Profile")] # [switch]$UseLocalProfile ) if (!(Test-Path -Path $Folder)) { Write-Host "该目录不存在，请检查后重试" return } $tokenUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$AppId&secret=$AppSecret" $response = Invoke-RestMethod -Method POST -Uri $tokenUrl if ($null -ne $response."errcode") { Write-Host "当前遇到如下错误，请解决后再次执行代码" Write-Host $response return } $token = $response.access_token $allmaterialsUrl = "https://api.weixin.qq.com/cgi-bin/material/get_materialcount?access_token=$($token)" $response = Invoke-RestMethod -Uri $allmaterialsUrl $newsCount = $response.news_count $pages = [Math]::Ceiling($newsCount / 20) $pageIndex = 1 $getmateriallistUrl = "https://api.weixin.qq.com/cgi-bin/material/batchget_material?access_token=$($token)" do { Write-Progress -Activity "保存文章列表" -Status "第 $pageIndex 页" -PercentComplete ($pageIndex / $pages * 100) $data = @{ type = 'news' offset = ($pageIndex - 1) * 20 count = 20 } | ConvertTo-Json $file = Join-Path $Folder "weixin_news_backup_$pageIndex.json" Invoke-RestMethod -Method Post -Uri $getmateriallistUrl -Body $data -OutFile $file $PageIndex = $PageIndex + 1 } until ($pageIndex -gt $pages) } # 通过 ParemeterSet 可以实现类似于方法重载的效果 |