Files
bodyshop/server/media/imgproxy-media.js
2025-02-27 12:15:36 -08:00

349 lines
12 KiB
JavaScript

const path = require("path");
require("dotenv").config({
path: path.resolve(process.cwd(), `.env.${process.env.NODE_ENV || "development"}`)
});
const logger = require("../utils/logger");
const {
S3Client,
PutObjectCommand,
GetObjectCommand,
CopyObjectCommand,
DeleteObjectCommand
} = require("@aws-sdk/client-s3");
const { Upload } = require("@aws-sdk/lib-storage");
const { getSignedUrl } = require("@aws-sdk/s3-request-presigner");
const crypto = require("crypto");
const { InstanceRegion } = require("../utils/instanceMgr");
const {
GET_DOCUMENTS_BY_JOB,
QUERY_TEMPORARY_DOCS,
GET_DOCUMENTS_BY_IDS,
DELETE_MEDIA_DOCUMENTS
} = require("../graphql-client/queries");
const archiver = require("archiver");
const stream = require("node:stream");
const imgproxyBaseUrl = process.env.IMGPROXY_BASE_URL; // `https://u4gzpp5wm437dnm75qa42tvza40fguqr.lambda-url.ca-central-1.on.aws` //Direct Lambda function access to bypass CDN.
const imgproxyKey = process.env.IMGPROXY_KEY;
const imgproxySalt = process.env.IMGPROXY_SALT;
const imgproxyDestinationBucket = process.env.IMGPROXY_DESTINATION_BUCKET;
//Generate a signed upload link for the S3 bucket.
//All uploads must be going to the same shop and jobid.
exports.generateSignedUploadUrls = async (req, res) => {
const { filenames, bodyshopid, jobid } = req.body;
try {
logger.log("imgproxy-upload-start", "DEBUG", req.user?.email, jobid, { filenames, bodyshopid, jobid });
const signedUrls = [];
for (const filename of filenames) {
const key = filename;
const client = new S3Client({ region: InstanceRegion() });
const command = new PutObjectCommand({
Bucket: imgproxyDestinationBucket,
Key: key,
StorageClass: "INTELLIGENT_TIERING"
});
const presignedUrl = await getSignedUrl(client, command, { expiresIn: 360 });
signedUrls.push({ filename, presignedUrl, key });
}
logger.log("imgproxy-upload-success", "DEBUG", req.user?.email, jobid, { signedUrls });
res.json({
success: true,
signedUrls
});
} catch (error) {
res.status(400).json({
success: false,
message: error.message,
stack: error.stack
});
logger.log("imgproxy-upload-error", "ERROR", req.user?.email, jobid, {
message: error.message,
stack: error.stack
});
}
};
exports.getThumbnailUrls = async (req, res) => {
const { jobid, billid } = req.body;
try {
logger.log("imgproxy-thumbnails", "DEBUG", req.user?.email, jobid, { billid, jobid });
//Delayed as the key structure may change slightly from what it is currently and will require evaluating mobile components.
const client = req.userGraphQLClient;
//If there's no jobid and no billid, we're in temporary documents.
const data = await (jobid
? client.request(GET_DOCUMENTS_BY_JOB, { jobId: jobid })
: client.request(QUERY_TEMPORARY_DOCS));
const thumbResizeParams = `rs:fill:250:250:1/g:ce`;
const s3client = new S3Client({ region: InstanceRegion() });
const proxiedUrls = [];
for (const document of data.documents) {
//Format to follow:
//<Cloudfront_to_lambda>/<hmac with SHA of entire request URI path (with base64 encoded URL if needed), beginning with unencoded/unhashed Salt>/<remainder of url - resize params >/< base 64 URL encoded to image path>
//When working with documents from Cloudinary, the URL does not include the extension.
let key;
if (/\.[^/.]+$/.test(document.key)) {
key = document.key;
} else {
key = `${document.key}.${document.extension.toLowerCase()}`;
}
// Build the S3 path to the object.
const fullS3Path = `s3://${imgproxyDestinationBucket}/${key}`;
const base64UrlEncodedKeyString = base64UrlEncode(fullS3Path);
//Thumbnail Generation Block
const thumbProxyPath = `${thumbResizeParams}/${base64UrlEncodedKeyString}`;
const thumbHmacSalt = createHmacSha256(`${imgproxySalt}/${thumbProxyPath}`);
//Full Size URL block
const fullSizeProxyPath = `${base64UrlEncodedKeyString}`;
const fullSizeHmacSalt = createHmacSha256(`${imgproxySalt}/${fullSizeProxyPath}`);
const s3Props = {};
if (!document.type.startsWith("image")) {
//If not a picture, we need to get a signed download link to the file using S3 (or cloudfront preferably)
const command = new GetObjectCommand({
Bucket: imgproxyDestinationBucket,
Key: key
});
const presignedGetUrl = await getSignedUrl(s3client, command, { expiresIn: 360 });
s3Props.presignedGetUrl = presignedGetUrl;
const originalProxyPath = `raw:1/${base64UrlEncodedKeyString}`;
const originalHmacSalt = createHmacSha256(`${imgproxySalt}/${originalProxyPath}`);
s3Props.originalUrlViaProxyPath = `${imgproxyBaseUrl}/${originalHmacSalt}/${originalProxyPath}`;
}
proxiedUrls.push({
originalUrl: `${imgproxyBaseUrl}/${fullSizeHmacSalt}/${fullSizeProxyPath}`,
thumbnailUrl: `${imgproxyBaseUrl}/${thumbHmacSalt}/${thumbProxyPath}`,
fullS3Path,
base64UrlEncodedKeyString,
thumbProxyPath,
...s3Props,
...document
});
}
res.json(proxiedUrls);
//Iterate over them, build the link based on the media type, and return the array.
} catch (error) {
logger.log("imgproxy-thumbnails-error", "ERROR", req.user?.email, jobid, {
jobid,
billid,
message: error.message,
stack: error.stack
});
res.status(400).json({ message: error.message, stack: error.stack });
}
};
exports.getBillFiles = async (req, res) => {
//Givena bill ID, get the documents associated to it.
};
exports.downloadFiles = async (req, res) => {
//Given a series of document IDs or keys, generate a file (or a link) to download all images in bulk
const { jobid, billid, documentids } = req.body;
try {
logger.log("imgproxy-download", "DEBUG", req.user?.email, jobid, { billid, jobid, documentids });
//Delayed as the key structure may change slightly from what it is currently and will require evaluating mobile components.
const client = req.userGraphQLClient;
//Query for the keys of the document IDs
const data = await client.request(GET_DOCUMENTS_BY_IDS, { documentIds: documentids });
//Using the Keys, get all of the S3 links, zip them, and send back to the client.
const s3client = new S3Client({ region: InstanceRegion() });
const archiveStream = archiver("zip");
archiveStream.on("error", (error) => {
console.error("Archival encountered an error:", error);
throw new Error(error);
});
const passthrough = new stream.PassThrough();
archiveStream.pipe(passthrough);
for (const key of data.documents.map((d) => d.key)) {
const response = await s3client.send(new GetObjectCommand({ Bucket: imgproxyDestinationBucket, Key: key }));
// :: `response.Body` is a Buffer
console.log(path.basename(key));
archiveStream.append(response.Body, { name: path.basename(key) });
}
archiveStream.finalize();
const archiveKey = `archives/${jobid}/archive-${new Date().toISOString()}.zip`;
const parallelUploads3 = new Upload({
client: s3client,
queueSize: 4, // optional concurrency configuration
leavePartsOnError: false, // optional manually handle dropped parts
params: { Bucket: imgproxyDestinationBucket, Key: archiveKey, Body: passthrough }
});
parallelUploads3.on("httpUploadProgress", (progress) => {
console.log(progress);
});
const uploadResult = await parallelUploads3.done();
//Generate the presigned URL to download it.
const presignedUrl = await getSignedUrl(
s3client,
new GetObjectCommand({ Bucket: imgproxyDestinationBucket, Key: archiveKey }),
{ expiresIn: 360 }
);
res.json({ success: true, url: presignedUrl });
//Iterate over them, build the link based on the media type, and return the array.
} catch (error) {
logger.log("imgproxy-thumbnails-error", "ERROR", req.user?.email, jobid, {
jobid,
billid,
message: error.message,
stack: error.stack
});
res.status(400).json({ message: error.message, stack: error.stack });
}
};
exports.deleteFiles = async (req, res) => {
//Mark a file for deletion in s3. Lifecycle deletion will actually delete the copy in the future.
//Mark as deleted from the documents section of the database.
const { ids } = req.body;
try {
logger.log("imgproxy-delete-files", "DEBUG", req.user.email, null, { ids });
const client = req.userGraphQLClient;
//Do this to make sure that they are only deleting things that they have access to
const data = await client.request(GET_DOCUMENTS_BY_IDS, { documentIds: ids });
const s3client = new S3Client({ region: InstanceRegion() });
const deleteTransactions = [];
data.documents.forEach((document) => {
deleteTransactions.push(
(async () => {
try {
// Delete the original object
const deleteResult = await s3client.send(
new DeleteObjectCommand({
Bucket: imgproxyDestinationBucket,
Key: document.key
})
);
return document;
} catch (error) {
return { document, error: error, bucket: imgproxyDestinationBucket };
}
})()
);
});
const result = await Promise.all(deleteTransactions);
const errors = result.filter((d) => d.error);
//Delete only the succesful deletes.
const deleteMutationResult = await client.request(DELETE_MEDIA_DOCUMENTS, {
ids: result.filter((t) => !t.error).map((d) => d.id)
});
res.json({ errors, deleteMutationResult });
} catch (error) {
logger.log("imgproxy-delete-files-error", "ERROR", req.user.email, null, {
ids,
message: error.message,
stack: error.stack
});
res.status(400).json({ message: error.message, stack: error.stack });
}
};
exports.moveFiles = async (req, res) => {
const { documents, tojobid } = req.body;
try {
logger.log("imgproxy-move-files", "DEBUG", req.user.email, null, { documents, tojobid });
const s3client = new S3Client({ region: InstanceRegion() });
const moveTransactions = [];
documents.forEach((document) => {
moveTransactions.push(
(async () => {
try {
// Copy the object to the new key
const copyresult = await s3client.send(
new CopyObjectCommand({
Bucket: imgproxyDestinationBucket,
CopySource: `${imgproxyDestinationBucket}/${document.from}`,
Key: document.to,
StorageClass: "INTELLIGENT_TIERING"
})
);
// Delete the original object
const deleteResult = await s3client.send(
new DeleteObjectCommand({
Bucket: imgproxyDestinationBucket,
Key: document.from
})
);
return document;
} catch (error) {
return { id: document.id, from: document.from, error: error, bucket: imgproxyDestinationBucket };
}
})()
);
});
const result = await Promise.all(moveTransactions);
const errors = result.filter((d) => d.error);
let mutations = "";
result
.filter((d) => !d.error)
.forEach((d, idx) => {
//Create mutation text
mutations =
mutations +
`
update_doc${idx}:update_documents_by_pk(pk_columns: { id: "${d.id}" }, _set: {key: "${d.to}", jobid: "${tojobid}"}){
id
}
`;
});
const client = req.userGraphQLClient;
if (mutations !== "") {
const mutationResult = await client.request(`mutation {
${mutations}
}`);
res.json({ errors, mutationResult });
} else {
res.json({ errors: "No images were succesfully moved on remote server. " });
}
} catch (error) {
logger.log("imgproxy-move-files-error", "ERROR", req.user.email, null, {
documents,
tojobid,
message: error.message,
stack: error.stack
});
res.status(400).json({ message: error.message, stack: error.stack });
}
};
function base64UrlEncode(str) {
return Buffer.from(str).toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/, "");
}
function createHmacSha256(data) {
return crypto.createHmac("sha256", imgproxyKey).update(data).digest("base64url");
}