feat: add posts to IPFS as DAG with CID objects for images

capsulesocial · Jun 1, 2022 · cc10738 · cc10738
1 parent e871f77
commit cc10738
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Showing 4 changed files with 52 additions and 15 deletions.
diff --git a/src/backend/post.ts b/src/backend/post.ts
@@ -1,4 +1,5 @@
 import axios, { AxiosError } from 'axios'
+import { CID } from 'ipfs-core'
 
 import { signContent, verifyContent } from './utilities/keys'
 import ipfs from './utilities/ipfs'
@@ -17,18 +18,24 @@ export interface Post {
 	subtitle: string | null
 	content: string
 	category: string
-	featuredPhotoCID?: string | null
+	featuredPhotoCID: string | null
 	featuredPhotoCaption?: string | null
 	timestamp: number
 	tags: Tag[]
 	encrypted?: boolean
-	postImages?: Array<string>
+	postImages: Array<string>
 }
 
 export interface IRegularPost extends Post {
 	encrypted?: false
 }
 
+export interface IRegularPostDAG extends Omit<Post, `featuredPhotoCID` | `postImages`> {
+	encrypted?: false
+	featuredPhotoCID: CID | null
+	postImages: Array<CID>
+}
+
 export interface IEncryptedPost extends Post {
 	encrypted: true
 }
@@ -62,9 +69,9 @@ export function createRegularPost(
 	category: string,
 	tags: Tag[],
 	authorID: string,
-	featuredPhotoCID?: string | null,
+	postImages: Array<string>,
+	featuredPhotoCID: string | null,
 	featuredPhotoCaption?: string | null,
-	postImages?: Array<string>,
 ): IRegularPost {
 	if (subtitle !== null) {
 		subtitle = subtitle.trim()
@@ -77,10 +84,10 @@ export function createRegularPost(
 		timestamp: Date.now(),
 		tags,
 		authorID,
-		...(featuredPhotoCID ? { featuredPhotoCID } : {}),
+		postImages,
+		featuredPhotoCID,
 		...(featuredPhotoCaption ? { featuredPhotoCaption } : {}),
 		encrypted: false,
-		postImages,
 	}
 }
 
@@ -91,7 +98,8 @@ export function createEncryptedPost(
 	category: string,
 	tags: Tag[],
 	authorID: string,
-	featuredPhotoCID?: string | null,
+	postImages: Array<string>,
+	featuredPhotoCID: string | null,
 	featuredPhotoCaption?: string | null,
 ): IEncryptedPost {
 	if (subtitle !== null) {
@@ -105,21 +113,42 @@ export function createEncryptedPost(
 		timestamp: Date.now(),
 		tags,
 		authorID,
-		...(featuredPhotoCID ? { featuredPhotoCID } : {}),
+		postImages,
+		featuredPhotoCID,
 		...(featuredPhotoCaption ? { featuredPhotoCaption } : {}),
 		encrypted: true,
 	}
 }
 
 export async function sendRegularPost(data: IRegularPost): Promise<string> {
 	const { sig, publicKey } = await signContent(data)
+	const featuredPhotoCID = data.featuredPhotoCID ? CID.parse(data.featuredPhotoCID) : null
+	const postImages = data.postImages.map((imageCID) => CID.parse(imageCID))
 
-	const ipfsData: ISignedIPFSObject<IRegularPost> = { data, sig: uint8ArrayToHexString(sig), public_key: publicKey }
+	const ipfsData: ISignedIPFSObject<IRegularPostDAG> = {
+		data: {
+			authorID: data.authorID,
+			title: data.title,
+			subtitle: data.subtitle,
+			content: data.content,
+			category: data.category,
+			postImages,
+			featuredPhotoCID,
+			...(data.featuredPhotoCaption ? { featuredPhotoCaption: data.featuredPhotoCaption } : {}),
+			timestamp: data.timestamp,
+			tags: data.tags,
+			encrypted: data.encrypted,
+		},
+		sig: uint8ArrayToHexString(sig),
+		public_key: publicKey,
+	}
 
 	const cid = await ipfs().sendJSONData(ipfsData)
+
+	const postData: ISignedIPFSObject<IRegularPost> = { data, sig: uint8ArrayToHexString(sig), public_key: publicKey }
 	await axios.post(`${nodeUrl()}/content`, {
 		cid,
-		data: ipfsData,
+		data: postData,
 		type: `post`,
 	})
 

diff --git a/src/backend/utilities/ipfs.ts b/src/backend/utilities/ipfs.ts
@@ -116,7 +116,11 @@ async function createIPFSInterface(): Promise<IPFSInterface> {
 	}
 
 	const sendJSONData = async <T>(content: T) => {
-		const cid = await node.dag.put(content)
+		const cid = await node.dag.put(content, {
+			storeCodec: `dag-cbor`,
+			hashAlg: `sha2-256`,
+		})
+
 		return cid.toString()
 	}
 

diff --git a/src/components/post/Editor.vue b/src/components/post/Editor.vue
@@ -656,16 +656,16 @@ export default Vue.extend({
 			if (checksOnly) {
 				return true
 			}
-			this.sendPost(clean, category, tags, featuredPhotoCID, featuredPhotoCaption, postImages)
+			this.sendPost(clean, category, tags, postImages, featuredPhotoCID, featuredPhotoCaption)
 			return true
 		},
 		async sendPost(
 			clean: string,
 			category: string,
 			tags: Tag[],
-			featuredPhotoCID?: string | null,
+			postImages: Array<string>,
+			featuredPhotoCID: string | null,
 			featuredPhotoCaption?: string | null,
-			postImages?: Array<string>,
 		): Promise<void> {
 			const p = createRegularPost(
 				this.title,
@@ -674,9 +674,9 @@ export default Vue.extend({
 				category,
 				tags,
 				this.$store.state.session.id,
+				postImages,
 				featuredPhotoCID,
 				featuredPhotoCaption,
-				postImages,
 			)
 			try {
 				const cid = await sendRegularPost(p)

diff --git a/src/store/draft.ts b/src/store/draft.ts
@@ -95,6 +95,7 @@ export const mutations: MutationTree<DraftState> = {
 			content: ``,
 			featuredPhotoCID: null,
 			featuredPhotoCaption: null,
+			postImages: [],
 			tags: [],
 			category: ``,
 			timestamp: 0,
@@ -111,6 +112,7 @@ export const mutations: MutationTree<DraftState> = {
 				content: ``,
 				featuredPhotoCID: null,
 				featuredPhotoCaption: null,
+				postImages: [],
 				tags: [],
 				category: ``,
 				timestamp: 0,
@@ -131,6 +133,7 @@ export const mutations: MutationTree<DraftState> = {
 				content: ``,
 				featuredPhotoCID: null,
 				featuredPhotoCaption: null,
+				postImages: [],
 				tags: [],
 				category: ``,
 				timestamp: 0,
@@ -149,6 +152,7 @@ export const mutations: MutationTree<DraftState> = {
 				content: ``,
 				featuredPhotoCID: null,
 				featuredPhotoCaption: null,
+				postImages: [],
 				tags: [],
 				category: ``,
 				timestamp: 0,