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s3.js
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Code Issues Releases Wiki Activity

add ability to sign() without fetch

This commit is contained in:
AJ ONeal 2020-09-10 02:12:43 -06:00
parent d26ab16475
commit 0452e68809
2 changed files with 110 additions and 54 deletions
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42
README.md
View File

@ -2,12 +2,28 @@
> Minimalist S3 client
A lightweight alternative to the s3 SDK that uses @root/request and aws4.
A lightweight alternative to the s3 SDK that uses only @root/request and aws4.
* set()
* get()
* head()
* delete()
- set()
- get()
- head()
- delete()
- sign()
Download a file from S3
```js
s3.get({
accessKeyId,
secretAccessKey,
region,
bucket,
prefix,
key
});
```
Upload a new file to S3
```js
s3.set({
@ -19,7 +35,21 @@ s3.set({
key,
body,
size
})
});
```
Return signed URL without fetching.
```js
s3.sign({
method: 'get',
accessKeyId,
secretAccessKey,
region,
bucket,
prefix,
key
});
```
If the body is a stream then `size` must be set to `fs.statSync(filePath).size`, or the request will fail:

122
index.js
View File

@ -4,17 +4,13 @@ var aws4 = require('aws4');
var request = require('@root/request');
var env = process.env;
module.exports = {
var S3;
module.exports = S3 = {
// HEAD
head: function({
host,
accessKeyId,
secretAccessKey,
region,
bucket,
prefix,
key
}) {
head: function (
{ host, accessKeyId, secretAccessKey, region, bucket, prefix, key },
_sign
) {
// TODO support minio
/*
var awsHost = config.awsHost;
@ -45,7 +41,7 @@ module.exports = {
}
var signed = aws4.sign(
{
host: host || (bucket + '.s3.amazonaws.com'),
host: host || bucket + '.s3.amazonaws.com',
service: 's3',
region: region,
path: (host ? '/' + bucket : '') + '/' + prefix + key,
@ -55,8 +51,11 @@ module.exports = {
{ accessKeyId: accessKeyId, secretAccessKey: secretAccessKey }
);
var url = 'https://' + signed.host + signed.path;
if ('sign' === _sign) {
return url;
}
return request({ method: 'HEAD', url }).then(function(resp) {
return request({ method: 'HEAD', url }).then(function (resp) {
if (200 === resp.statusCode) {
resp.url = url;
return resp;
@ -73,23 +72,26 @@ module.exports = {
},
// GET
get: function({
host,
accessKeyId,
secretAccessKey,
region,
bucket,
prefix,
key,
json
}) {
get: function (
{
host,
accessKeyId,
secretAccessKey,
region,
bucket,
prefix,
key,
json
},
_sign
) {
prefix = prefix || '';
if (prefix) {
prefix = prefix.replace(/\/?$/, '/');
}
var signed = aws4.sign(
{
host: host || (bucket + '.s3.amazonaws.com'),
host: host || bucket + '.s3.amazonaws.com',
service: 's3',
region: region,
path: (host ? '/' + bucket : '') + '/' + prefix + key,
@ -99,6 +101,9 @@ module.exports = {
{ accessKeyId: accessKeyId, secretAccessKey: secretAccessKey }
);
var url = 'https://' + signed.host + signed.path;
if ('sign' === _sign) {
return url;
}
// stay binary by default
var encoding = null;
@ -110,7 +115,7 @@ module.exports = {
url,
encoding: encoding,
json: json
}).then(function(resp) {
}).then(function (resp) {
if (200 === resp.statusCode) {
resp.url = url;
return resp;
@ -127,24 +132,27 @@ module.exports = {
},
// PUT
set: function({
host,
accessKeyId,
secretAccessKey,
region,
bucket,
prefix,
key,
body,
size
}) {
set: function (
{
host,
accessKeyId,
secretAccessKey,
region,
bucket,
prefix,
key,
body,
size
},
_sign
) {
prefix = prefix || '';
if (prefix) {
prefix = prefix.replace(/\/?$/, '/');
}
var signed = aws4.sign(
{
host: host || (bucket + '.s3.amazonaws.com'),
host: host || bucket + '.s3.amazonaws.com',
service: 's3',
region: region,
path: (host ? '/' + bucket : '') + '/' + prefix + key,
@ -159,7 +167,7 @@ module.exports = {
headers['Content-Length'] = size;
}
return request({ method: 'PUT', url, body, headers }).then(function(
return request({ method: 'PUT', url, body, headers }).then(function (
resp
) {
if (200 === resp.statusCode) {
@ -178,22 +186,17 @@ module.exports = {
},
// DELETE
del: function({
host,
accessKeyId,
secretAccessKey,
region,
bucket,
prefix,
key
}) {
del: function (
{ host, accessKeyId, secretAccessKey, region, bucket, prefix, key },
_sign
) {
prefix = prefix || '';
if (prefix) {
prefix = prefix.replace(/\/?$/, '/');
}
var signed = aws4.sign(
{
host: host || (bucket + '.s3.amazonaws.com'),
host: host || bucket + '.s3.amazonaws.com',
service: 's3',
region: region,
path: (host ? '/' + bucket : '') + '/' + prefix + key,
@ -204,7 +207,7 @@ module.exports = {
);
var url = 'https://' + signed.host + signed.path;
return request({ method: 'DELETE', url }).then(function(resp) {
return request({ method: 'DELETE', url }).then(function (resp) {
if (204 === resp.statusCode) {
resp.url = url;
return resp;
@ -218,5 +221,28 @@ module.exports = {
err.response = resp;
throw err;
});
},
// sign-only
sign: function (opts) {
var method = opts.method;
if (!method) {
method = 'GET';
}
switch (method.toUpperCase()) {
case 'HEAD':
return S3.head(opts, 'sign');
case 'GET':
return S3.get(opts, 'sign');
case 'POST':
case 'PUT':
case 'SET':
return S3.set(opts, 'sign');
case 'DEL':
case 'DELETE':
return S3.del(opts, 'sign');
default:
throw new Error("Unknown method '" + method + "'");
}
}
};