2023-12-18 16:23:18 +01:00
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#!/bin/bash
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################################################################################
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# Author: Fred (support@qo-op.com)
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# Version: 0.2
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# License: AGPL-3.0 (https://choosealicense.com/licenses/agpl-3.0/)
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################################################################################
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MY_PATH="`dirname \"$0\"`" # relative
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MY_PATH="`( cd \"$MY_PATH\" && pwd )`" # absolutized and normalized
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. "$MY_PATH/my.sh"
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################################################################################
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PLAYER="$1"
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[[ ! -s ~/.zen/game/players/${PLAYER}/secret.dunikey ]] && PLAYER=".current"
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if [[ ! -s ~/.zen/game/players/${PLAYER}/private_color.png ]]; then
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PUBKEY=$(cat ~/.zen/game/players/${PLAYER}/secret.dunikey | grep 'pub:' | cut -d ' ' -f 2)
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SECKEY=$(cat ~/.zen/game/players/${PLAYER}/secret.dunikey | grep 'sec:' | cut -d ' ' -f 2)
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DESTMAIL="$2"
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# Convert the public key to a color (hexadecimal representation)
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color_hex=$(echo -n ${SECKEY} | sha256sum | awk '{print $1}')
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# Ensure the color is 6 characters long (for RGB)
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color_hex=${color_hex:0:6}
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echo "Color Hex: #$color_hex"
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# Convert the color to an Image
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convert -size 100x100 xc:"#${color_hex}" ~/.zen/game/players/${PLAYER}/private_color.png
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fi
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# Choosing IPFSNODEID Base Color
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color_hex=$(echo -n ${IPFSNODEID} | sha256sum | awk '{print $1}')
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color_hex=${color_hex:0:6}
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2023-12-18 16:35:22 +01:00
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convert -size 100x100 xc:"#${color_hex}" ~/.zen/tmp/base_white.png
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echo "Base Hex: #$color_hex"
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2023-12-18 16:23:18 +01:00
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# Step 3: Mixing Colors
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composite -compose Multiply ~/.zen/tmp/base_white.png \
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~/.zen/game/players/${PLAYER}/private_color.png \
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~/.zen/tmp/mixed_color.png
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xdg-open ~/.zen/tmp/mixed_color.png
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echo "Sharing 'mixed_color.png' on ipfs pubsub channel"
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# Step 4: Exchange Mixed Colors using IPFS pubsub
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ipfs_pubsub_channel="diffie_hellman_colors_channel"
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ipfs_pubsub_pub_cmd="ipfs pubsub pub $ipfs_pubsub_channel"
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ipfs_pubsub_sub_cmd="ipfs pubsub sub $ipfs_pubsub_channel"
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$ipfs_pubsub_pub_cmd < ~/.zen/tmp/mixed_color.png
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# Wait for Bob to publish his mixed color
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echo "Waiting for Other to publish his mixed color..."
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mixed_bob_ipfs=$(eval $ipfs_pubsub_sub_cmd)
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echo "Received Bob's mixed color from IPFS pubsub."
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# Save Bob's mixed color to a file
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echo "$mixed_bob_ipfs" > ~/.zen/tmp/mixed_bob_from_ipfs.png
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# Step 5: Final Color Agreement
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composite -compose Multiply ~/.zen/tmp/mixed_bob_from_ipfs.png \
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~/.zen/game/players/${PLAYER}/private_color.png \
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~/.zen/tmp/shared_secret.png
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echo "Completed. You have a ~/.zen/tmp/shared_secret.png"
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xdg-open ~/.zen/tmp/shared_secret.png
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