fix(wecom): use CreateSafeHTTPClient for media downloads - #3323
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WeCom mediaClient was a plain http.Client, so inbound storeRemoteMedia and outbound downloadRemoteMediaToTemp followed redirects onto loopback/private hosts. Build the client via CreateSafeHTTPClient and ValidateSafeHTTPURL before fetch (sibling of channel DownloadFile sipeed#3322).
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This was referenced Aug 9, 2026
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Summary
mediaClientas a plainhttp.Client, so inboundstoreRemoteMediaand outbounddownloadRemoteMediaToTempfollowed redirects onto loopback / private hosts.utils.CreateSafeHTTPClientandValidateSafeHTTPURLbefore fetch.DownloadFileprivate block); WeCom uses a separate media client path.Test plan
go test ./pkg/channels/wecom/ -count=1(includes new redirect-to-private reject)Made with Cursor