witten
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intergalactic
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Upgrade js-ipfs version and add support for 404 pages.

This commit is contained in:
Dan 2017-12-21 22:16:53 -08:00
parent aba3b8d8b4
commit 5624a03168
2 changed files with 27 additions and 13 deletions
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2
package.json
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@ -17,6 +17,6 @@
"webpack-dev-server": "^2.4.5"
},
"dependencies": {
"ipfs": "0.27.1"
"ipfs": "0.27.5"
}
}

38
src/fetcher.js
View File

@ -40,6 +40,22 @@ function initialize_ipfs() {
let ipfs_initialized
function response(status_code, status_text, body, headers={}) {
// Return a promise for a response with the given HTTP status code, status text, and HTML body.
return new Promise((resolve, reject) => {
resolve(
new Response(
body,
{
status: status_code,
statusText: status_text,
headers: headers
}
)
)
})
}
self.addEventListener('fetch', (event) => {
if (!event.request.url.startsWith(self.location.origin + '/ipfs')) {
return console.log('Fetch not in scope:', event.request.url)
@ -47,27 +63,25 @@ self.addEventListener('fetch', (event) => {
console.log('Handling fetch event:', event.request.url)
const headers = {
status: 200,
statusText: 'OK',
headers: {}
}
if (!ipfs_initialized) {
ipfs_initialized = initialize_ipfs()
}
event.respondWith(
ipfs_initialized.then(function() {
ipfs_initialized.then(() => {
const url = new URL(event.request.url)
const multihash = url.pathname
return node.files.cat(multihash)
}).then(function (contents_buffer) {
return new Promise((resolve, reject) => {
const response = new Response(contents_buffer, headers)
resolve(response)
})
}).then((contents_buffer) => {
return response(200, 'OK', contents_buffer)
}).catch((error) => {
console.log(error)
return response(
404, 'Not Found',
Buffer.from('<html><head><title>404 Not Found</title></head><body bgcolor="white"><center><h1>404 Not Found</h1></center><hr><center>Intergalactic</center></body></html>'),
{'Content-Type': 'text/html; charset=utf-8'}
)
})
)
})