kopia lustrzana https://gitlab.com/rysiekpl/libresilient
Rewrote the convoluted return statement of getContentFromGunAndIPFS into a linear code flow.
rodzic
6112e5ce01
commit
2d55e86d03
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@ -216,34 +216,40 @@ if (typeof window === 'undefined') {
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}
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LR.log(pluginName, " +-- guessed contentType : " + contentType);
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return getGunData(gunaddr).then(ipfsaddr => {
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LR.log(pluginName, `starting IPFS lookup of: '${ipfsaddr}'`);
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LR.log(pluginName, `ipfs is: '${ipfs}'`);
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return ipfs.get(ipfsaddr).next();
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}).then(file => {
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// we only need one
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if (file.value.content) {
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async function getContent(source) {
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var content = new Uint8Array()
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var data = await source.next()
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while (! data.done) {
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var newContent = new Uint8Array(content.length + data.value.length);
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newContent.set(content)
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newContent.set(data.value, content.length)
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content = newContent
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data = await source.next()
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}
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return content
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}
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return getContent(file.value.content).then((content)=>{
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LR.log(pluginName, `got a Gun-addressed IPFS-stored file: ${file.value.path}\n+-- content is: ${typeof content}`);
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// creating and populating the blob
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var blob = new Blob(
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[content],
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{'type': contentType}
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);
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const ipfsaddr = await getGunData(gunaddr)
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LR.log(pluginName, `starting IPFS lookup of: '${ipfsaddr}'`);
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LR.log(pluginName, `ipfs is: '${ipfs}'`);
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const file = await ipfs.get(ipfsaddr).next()
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return new Response(
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if(file.value.content) {
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let source = file.value.content
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let chunks = []
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let contentLength = 0;
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let data = await source.next()
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while(!data.done) {
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chunks.push(data.value)
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contentLength += data.value.length
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data = await source.next()
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}
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LR.log(pluginName, `Chunks: ${chunks}`)
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let content = new Uint8Array(contentLength)
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let currentLength = 0;
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for(let i = 0; i < chunks.length; i++) {
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content.set(chunks[i], currentLength)
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currentLength += chunks[i].length;
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}
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LR.log(pluginName, `got a Gun-addressed IPFS-stored file: ${file.value.path}\n+-- content is: ${typeof content}`);
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let blob = new Blob(
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[content],
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{ type: contentType }
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)
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return new Response(
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blob,
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{
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'status': 200,
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@ -255,10 +261,12 @@ if (typeof window === 'undefined') {
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'X-LibResilient-ETag': file.value.path
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}
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}
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);
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})
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};
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});
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)
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} else {
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LR.log(pluginName, `Gun-addressed IPFS-stored file could not be resolved on IPFS:\nGun: ${gunaddr}\nIPFS: ${ipfsaddr}`)
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return null
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}
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}
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@ -271,39 +279,38 @@ if (typeof window === 'undefined') {
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*/
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/**
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* adding stuff to IPFS
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* accepts an array of URLs
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*
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* returns a Promise that resolves to an object mapping URLs to IPFS hashes
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*/
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let addToIPFS = (resources) => {
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return new Promise((resolve, reject) => {
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LR.log(pluginName, "adding to IPFS...")
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LR.log(pluginName, "+-- number of resources:", resources.length)
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var ipfs_addresses = new Map();
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/**
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* adding stuff to IPFS
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* accepts an array of URLs
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*
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* returns a Promise that resolves to an object mapping URLs to IPFS hashes
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*/
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let addToIPFS = async resources => {
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LR.log(pluginName, "adding to IPFS...")
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LR.log(pluginName, "+-- number of resources:", resources.length)
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resources.forEach(function(res){
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LR.log(pluginName, " +-- handling internal resource:", res)
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ipfs.add(Ipfs.urlSource(res))
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.then((result) => {
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// add to the list -- this is needed to add stuff to Gun
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// result.path is just the filename stored in IPFS, not the actual path!
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// res holds the full URL
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// what we need in ipfs_addresses is in fact the absolute path (no domain, no scheme)
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var abs_path = res.replace(window.location.origin, '')
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ipfs_addresses.set(abs_path, '/ipfs/' + result.cid.string)
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LR.log(pluginName, "added to IPFS: " + abs_path + ' as ' + ipfs_addresses.get(abs_path))
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// if we seem to have all we need, resolve!
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if (ipfs_addresses.size === resources.length) resolve(ipfs_addresses);
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})
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});
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})
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let ipfsAddresses = new Map()
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for(let res of resources) {
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LR.log(pluginName, " +-- handling internal resource:", res)
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let result = await ipfs.add(Ipfs.urlSource(res))
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// add to the list -- this is needed to add stuff to Gun
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// result.path is just the filename stored in IPFS, not the actual path!
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// res holds the full URL
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// what we need in ipfsAddresses is in fact the absolute path (no domain, no scheme)
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let absPath = res.replace(window.location.origin, '')
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ipfsAddresses.set(absPath, "/ipfs/" + result.cid.toString())
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LR.log(pluginName, "added to IPFS: " + absPath + " as " + ipfsAddresses.get(absPath))
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}
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return ipfsAddresses
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}
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/**
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* verification that content pushed to IPFS
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* is, in fact, available in IPFS
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