65 lines
1.6 KiB
Bash
Executable File
65 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/bash
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# shellcheck disable=SC1090,SC1091
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# set -xv
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OUTDIR="$HOME/photos/eumetsat"
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# full screen coverage
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# PRJ=AUTO:42004,52,5,0
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# BBOX=(-6400000 -100000 6400000 7700000)
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# full disk
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PRJ=AUTO:42003,0,0,0
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BBOX=(-12800000 -7200000 12800000 7200000)
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# europe
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# PRJ=AUTO:42004,0,0,0
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# BBOX=(22.5 -45 90 67.5)
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# BBOX=(-45 -90 180 135)
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# BBOX=(-4500000 2250000 6750000 9000000)
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WIDTH=1920
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HEIGHT=1080
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error() {
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printf "\033[31m%s\033[0m\n" "$1"
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. "$HOME/.fehbg"
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exit 1
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}
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[ -z "$EUMETSAT_KEY" ] && error 'make sure to set EUMETSAT_KEY to the client key'
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[ -z "$EUMETSAT_SECRET" ] && error 'make sure to set EUMETSAT_SECRET to the client secret'
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# verify internet
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ping -c1 1.1.1.1 >>/dev/null || error "couldn't establish an internet connection!"
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# acquire the API key
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key=$(
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curl -k -d "grant_type=client_credentials" \
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-H "Authorization: Basic $(printf "%s:%s" "$EUMETSAT_KEY" "$EUMETSAT_SECRET" | base64)" \
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https://api.eumetsat.int/token | jq -r '.["access_token"]'
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)
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# set url
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url="https://view.eumetsat.int/geoserver/wms?"
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url+="&service=WMS"
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url+="&request=GetMap"
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url+="&version=1.3.0"
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url+="&layers=mtg_fd:rgb_geocolour"
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url+="&width=$WIDTH&height=$HEIGHT"
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url+="&bbox=${BBOX[0]},${BBOX[1]},${BBOX[2]},${BBOX[3]}"
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url+="&crs=$PRJ"
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url+="&styles="
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url+="&transparent=true"
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url+="&format=image/png"
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url+="&access_token=$key"
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# process incoming data
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[ ! -d "$OUTDIR" ] && { mkdir -p "$OUTDIR" || error "failed to access '$OUTDIR'!"; }
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curl "$url" -o "$OUTDIR/tmp.png" || error "failed to download from url='$url'!"
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mv -f "$OUTDIR/tmp.png" "$OUTDIR/curr.png"
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# update the feh background
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. "$HOME/.fehbg"
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