Created
October 9, 2015 13:35
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Created using **soleditor**: Realtime Ethereum Contract Compiler and Runtime. Load this file https://chriseth.github.io/browser-solidity#gist=
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import "owned"; | |
contract Archive is owned { | |
struct Content { | |
bool exists; | |
address OP; | |
bytes32[] archives; | |
} | |
uint public price; | |
mapping(bytes32 => Content) public contents; | |
event Post(bytes32 rootHash, bytes32 contentHash); | |
modifier costs { if (msg.value >= price) _ } | |
function archive( bytes32 rootContentHash, bytes32 archive, address OP, bool tip ) costs { | |
address archiver = msg.sender; | |
if (contents[rootContentHash].exists && archive != bytes32(0)) { | |
// append to archive | |
contents[rootContentHash].archives.length++; | |
contents[rootContentHash].archives[contents[rootContentHash].archives.length] = archive; | |
Post( rootContentHash, archive); | |
handleTip( tip, OP ); | |
} else if (!contents[rootContentHash].exists) { | |
// first archival | |
bytes32[] memory tmp; | |
contents[rootContentHash] = Content( true, OP, tmp); | |
Post( rootContentHash, bytes32(0)); | |
handleTip( tip, OP ); | |
} | |
} | |
function handleTip (bool tip, address OP) internal { | |
if (tip && OP != address(0)) { | |
OP.send( price ); | |
} else { | |
owner.send( price ); | |
} | |
} | |
function changePrice(uint _price) onlyowner { | |
price = _price; | |
} | |
} |
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