174 lines
7 KiB
JavaScript
174 lines
7 KiB
JavaScript
|
// load dependencies
|
||
|
|
var path = require('path');
|
||
|
|
var axios = require('axios');
|
||
|
|
|
||
|
|
// helper function to filter an array of claims for only free, public claims
|
||
|
|
function filterForFreePublicClaims(claimsListArray){
|
||
|
|
//console.log(">> filterForFreePublicClaims, claimsListArray:", claimsListArray);
|
||
|
|
if (!claimsListArray) {
|
||
|
|
return null;
|
||
|
|
};
|
||
|
|
var freePublicClaims = claimsListArray.filter(function(claim){
|
||
|
|
return (((claim.value.stream.metadata.license.indexOf('Public Domain') != -1) || (claim.value.stream.metadata.license.indexOf('Creative Commons') != -1)) &&
|
||
|
|
(!claim.value.stream.metadata.fee || claim.value.stream.metadata.fee === 0));
|
||
|
|
});
|
||
|
|
return freePublicClaims;
|
||
|
|
}
|
||
|
|
// helper function to decide if a claim is free and public
|
||
|
|
function isFreePublicClaim(claim){
|
||
|
|
console.log(">> isFreePublicClaim, claim:", claim);
|
||
|
|
if ((claim.value.stream.metadata.license === 'Public Domain' || claim.value.stream.metadata.license === 'Creative Commons') &&
|
||
|
|
(!claim.value.stream.metadata.fee || claim.value.stream.metadata.fee.amount === 0)) {
|
||
|
|
return true;
|
||
|
|
} else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// helper function to order a set of claims
|
||
|
|
function orderTopClaims(claimsListArray){
|
||
|
|
console.log(">> orderTopClaims, claimsListArray:");
|
||
|
|
claimsListArray.sort(function(claimA, claimB){
|
||
|
|
if (claimA.amount === claimB.amount){
|
||
|
|
return (claimA.height > claimB.height);
|
||
|
|
} else {
|
||
|
|
return (claimA.amount < claimB.amount);
|
||
|
|
}
|
||
|
|
})
|
||
|
|
return claimsListArray;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
publishClaim: function(publishObject){
|
||
|
|
axios.post('http://localhost:5279/lbryapi', publishObject)
|
||
|
|
.then(function (response) {
|
||
|
|
// receive resonse from LBRY
|
||
|
|
// if successfull, (1) delete file (2) send response to the client
|
||
|
|
console.log(">> 'publish' success...");
|
||
|
|
console.log(">> 'publish' response.data:", response.data);
|
||
|
|
console.log(" [x] Done");
|
||
|
|
// return the claim we got
|
||
|
|
//res.status(200).send(JSON.stringify({msg: "you succsessfully published!", txData: response.data}));
|
||
|
|
}).catch(function(error){
|
||
|
|
// receive response from LBRY
|
||
|
|
// if not successfull, (1) delete file and (2) send response to the client
|
||
|
|
console.log(">> 'publish' error.response.data:", error.response.data);
|
||
|
|
console.log(" [x] Done");
|
||
|
|
//res.status(500).send(JSON.stringify({msg: "your file was not published", err: error.response.data.error.message}));
|
||
|
|
})
|
||
|
|
},
|
||
|
|
serveClaimBasedOnNameOnly: function(claimName, res){
|
||
|
|
// make a call to the daemon to get the claims list
|
||
|
|
axios.post('http://localhost:5279/lbryapi', {
|
||
|
|
method: "claim_list",
|
||
|
|
params: {
|
||
|
|
name: claimName
|
||
|
|
}
|
||
|
|
}
|
||
|
|
).then(function (response) {
|
||
|
|
console.log(">> Claim_list success");
|
||
|
|
console.log(">> Number of claims:", response.data.result.claims.length)
|
||
|
|
// return early if no claims were found
|
||
|
|
if (response.data.result.claims.length === 0){
|
||
|
|
res.status(200).sendFile(path.join(__dirname, '../public', 'noClaims.html'));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// filter the claims to return free, public claims
|
||
|
|
var freePublicClaims = filterForFreePublicClaims(response.data.result.claims);
|
||
|
|
// return early if no free, public claims were found
|
||
|
|
if (!freePublicClaims || (freePublicClaims.length === 0)){
|
||
|
|
res.status(200).sendFile(path.join(__dirname, '../public', 'noClaims.html'));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// order the claims
|
||
|
|
var orderedPublcClaims = orderTopClaims(freePublicClaims);
|
||
|
|
// create the uri for the first (selected) claim
|
||
|
|
console.log(">> ordered free public claims", orderedPublcClaims);
|
||
|
|
var freePublicClaimUri = "lbry://" + orderedPublcClaims[0].name + "#" + orderedPublcClaims[0].claim_id;
|
||
|
|
console.log(">> your free public claim uri:", freePublicClaimUri);
|
||
|
|
// fetch the image to display
|
||
|
|
axios.post('http://localhost:5279/lbryapi', {
|
||
|
|
method: "get",
|
||
|
|
params: {
|
||
|
|
uri: freePublicClaimUri
|
||
|
|
}
|
||
|
|
}
|
||
|
|
).then(function (getResponse) {
|
||
|
|
console.log(">> 'get claim' success...");
|
||
|
|
console.log(">> response data:", getResponse.data);
|
||
|
|
console.log(">> dl path =", getResponse.data.result.download_path)
|
||
|
|
// return the claim we got
|
||
|
|
res.status(200).sendFile(getResponse.data.result.download_path);
|
||
|
|
}).catch(function(getError){
|
||
|
|
console.log(">> /c/ 'get' error:", getError.response.data);
|
||
|
|
res.status(500).send(JSON.stringify({msg: "An error occurred while fetching the free, public claim by URI.", err: getError.response.data.error.message}));
|
||
|
|
})
|
||
|
|
}).catch(function(error){
|
||
|
|
console.log(">> /c/ error:", error.response.data);
|
||
|
|
res.status(500).send(JSON.stringify({msg: "An error occurred while getting the claim list.", err: error.response.data.error.message}));
|
||
|
|
})
|
||
|
|
},
|
||
|
|
serveClaimBasedOnUri: function(uri, res){
|
||
|
|
/*
|
||
|
|
to do: need to pass the URI through a test (use 'resolve') to see if it is free and public. Right now it is jumping straight to 'get'ing and serving the asset.
|
||
|
|
*/
|
||
|
|
console.log(">> your uri:", uri);
|
||
|
|
// fetch the image to display
|
||
|
|
axios.post('http://localhost:5279/lbryapi', { // to do: abstract this code to a function that can be shared
|
||
|
|
method: "get",
|
||
|
|
params: {
|
||
|
|
uri: uri
|
||
|
|
}
|
||
|
|
}
|
||
|
|
).then(function (getResponse) {
|
||
|
|
console.log(">> 'get claim' success...");
|
||
|
|
console.log(">> response data:", getResponse.data);
|
||
|
|
console.log(">> dl path =", getResponse.data.result.download_path)
|
||
|
|
/*
|
||
|
|
to do: make sure the file has completed downloading before serving back the file
|
||
|
|
*/
|
||
|
|
// return the claim we got
|
||
|
|
res.status(200).sendFile(getResponse.data.result.download_path);
|
||
|
|
|
||
|
|
/* delete the file after a certain amount of time? */
|
||
|
|
|
||
|
|
}).catch(function(error){
|
||
|
|
console.log(">> /c/ 'get' error:", error.response.data);
|
||
|
|
res.status(500).send(JSON.stringify({msg: "an error occurred", err: error.response.data.error.message}));
|
||
|
|
})
|
||
|
|
},
|
||
|
|
serveAllClaims: function(claimName, res){
|
||
|
|
// make a call to the daemon to get the claims list
|
||
|
|
axios.post('http://localhost:5279/lbryapi', {
|
||
|
|
method: "claim_list",
|
||
|
|
params: {
|
||
|
|
name: claimName
|
||
|
|
}
|
||
|
|
}
|
||
|
|
).then(function (response) {
|
||
|
|
console.log(">> Claim_list success");
|
||
|
|
console.log(">> Number of claims:", response.data.result.claims.length)
|
||
|
|
// return early if no claims were found
|
||
|
|
if (response.data.result.claims.length === 0){
|
||
|
|
res.status(200).sendFile(path.join(__dirname, '../public', 'noClaims.html'));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// filter the claims to return free, public claims
|
||
|
|
var freePublicClaims = filterForFreePublicClaims(response.data.result.claims);
|
||
|
|
// return early if no free, public claims were found
|
||
|
|
if (!freePublicClaims || (freePublicClaims.length === 0)){
|
||
|
|
res.status(200).sendFile(path.join(__dirname, '../public', 'noClaims.html'));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
console.log(">> Number of free public claims:", freePublicClaims.length);
|
||
|
|
// order the claims
|
||
|
|
var orderedPublicClaims = orderTopClaims(freePublicClaims);
|
||
|
|
// serve the response
|
||
|
|
res.status(200).send(orderedPublicClaims); //to do: rather than returning json, serve a page of all these claims
|
||
|
|
}).catch(function(error){
|
||
|
|
console.log(">> /c/ error:", error.response.data);
|
||
|
|
// serve the response
|
||
|
|
res.status(500).send(JSON.stringify({msg: "An error occurred while finding the claim list.", err: error.response.data.error.message}));
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|