feat: add store/get and upload/get capabilities

packages/capabilities/src/index.js

@@ -40,10 +40,12 @@ export const abilitiesAsStrings = [
   Space.info.can,
   Upload.upload.can,
   Upload.add.can,
+  Upload.get.can,
   Upload.remove.can,
   Upload.list.can,
   Store.store.can,
   Store.add.can,
+  Store.get.can,
   Store.remove.can,
   Store.list.can,
   Access.access.can,

packages/capabilities/src/store.js

@@ -77,6 +77,28 @@ export const add = capability({
   },
 })
 
+/**
+ * Capability to get store metadata by shard CID.
+ * Use to check for inclusion, or get shard size and origin
+ *
+ * `nb.link` is optional to allow delegation of `store/get`
+ * capability for any shard cid. If link is specified, then the
+ * capability only allows a get for that single cid.
+ *
+ * When used as as an invocation, `nb.link` must be specified.
+ */
+export const get = capability({
+  can: 'store/get',
+  with: SpaceDID,
+  nb: Schema.struct({
+    /**
+     * shard CID to fetch info about.
+     */
+    link: Link.optional(),
+  }),
+  derives: equalLink,
+})
+
 /**
  * Capability can be used to remove the stored CAR file from the (memory)
  * space identified by `with` field.

packages/capabilities/src/types.ts

@@ -15,7 +15,7 @@ import type { PieceLink } from '@web3-storage/data-segment'
 import { space, info } from './space.js'
 import * as provider from './provider.js'
 import { top } from './top.js'
-import { add, list, remove, store } from './store.js'
+import * as StoreCaps from './store.js'
 import * as UploadCaps from './upload.js'
 import * as AccessCaps from './access.js'
 import * as CustomerCaps from './customer.js'
@@ -221,14 +221,22 @@ export interface ChainTrackerInfoFailure extends Ucanto.Failure {
 // Upload
 export type Upload = InferInvokedCapability<typeof UploadCaps.upload>
 export type UploadAdd = InferInvokedCapability<typeof UploadCaps.add>
+export type UploadGet = InferInvokedCapability<typeof UploadCaps.get>
 export type UploadRemove = InferInvokedCapability<typeof UploadCaps.remove>
 export type UploadList = InferInvokedCapability<typeof UploadCaps.list>
 
+export interface UploadNotFound extends Ucanto.Failure {
+  name: 'UploadNotFound'
+}
+
+export type UploadGetFailure = UploadNotFound | Ucanto.Failure
+
 // Store
-export type Store = InferInvokedCapability<typeof store>
-export type StoreAdd = InferInvokedCapability<typeof add>
-export type StoreRemove = InferInvokedCapability<typeof remove>
-export type StoreList = InferInvokedCapability<typeof list>
+export type Store = InferInvokedCapability<typeof StoreCaps.store>
+export type StoreAdd = InferInvokedCapability<typeof StoreCaps.add>
+export type StoreGet = InferInvokedCapability<typeof StoreCaps.get>
+export type StoreRemove = InferInvokedCapability<typeof StoreCaps.remove>
+export type StoreList = InferInvokedCapability<typeof StoreCaps.list>
 
 export type StoreAddSuccess = StoreAddSuccessDone | StoreAddSuccessUpload
 export interface StoreAddSuccessDone {
@@ -257,6 +265,10 @@ export interface StoreItemNotFound extends Ucanto.Failure {
 
 export type StoreRemoveFailure = StoreItemNotFound | Ucanto.Failure
 
+export type StoreGetSuccess = StoreListItem
+
+export type StoreGetFailure = StoreItemNotFound | Ucanto.Failure
+
 export interface StoreListSuccess extends ListResponse<StoreListItem> {}
 
 export interface ListResponse<R> {
@@ -271,13 +283,21 @@ export interface StoreListItem {
   link: UnknownLink
   size: number
   origin?: UnknownLink
+  insertedAt: string
 }
 
-export interface UploadAddSuccess {
+export interface UploadListItem {
   root: UnknownLink
   shards?: CARLink[]
+  insertedAt: string
+  updatedAt: string
 }
 
+// TODO: (olizilla) make this an UploadListItem too?
+export type UploadAddSuccess = Omit<UploadListItem, 'insertedAt' | 'updatedAt'>
+
+export type UploadGetSuccess = UploadListItem
+
 export type UploadRemoveSuccess = UploadDidRemove | UploadDidNotRemove
 
 export interface UploadDidRemove extends UploadAddSuccess {}
@@ -289,8 +309,6 @@ export interface UploadDidNotRemove {
 
 export interface UploadListSuccess extends ListResponse<UploadListItem> {}
 
-export interface UploadListItem extends UploadAddSuccess {}
-
 // UCAN core events
 
 export type UCANRevoke = InferInvokedCapability<typeof UCANCaps.revoke>
@@ -374,10 +392,12 @@ export type AbilitiesArray = [
   SpaceInfo['can'],
   Upload['can'],
   UploadAdd['can'],
+  UploadGet['can'],
   UploadRemove['can'],
   UploadList['can'],
   Store['can'],
   StoreAdd['can'],
+  StoreGet['can'],
   StoreRemove['can'],
   StoreList['can'],
   Access['can'],

packages/capabilities/src/upload.js

@@ -77,6 +77,38 @@ export const add = capability({
   },
 })
 
+/**
+ * Capability to get upload metadata by root CID.
+ * Use to check for inclusion, or find the shards for a root.
+ *
+ * `nb.root` is optional to allow delegation of `upload/get`
+ * capability for any root. If root is specified, then the
+ * capability only allows a get for that single cid.
+ *
+ * When used as as an invocation, `nb.root` must be specified.
+ */
+export const get = capability({
+  can: 'upload/get',
+  with: SpaceDID,
+  nb: Schema.struct({
+    /**
+     * Root CID of the DAG to fetch upload info about.
+     */
+    root: Link.optional(),
+  }),
+  derives: (self, from) => {
+    const res = equalWith(self, from)
+    if (res.error) {
+      return res
+    }
+    if (!from.nb.root) {
+      return res
+    }
+    // root must match if specified in the proof
+    return equal(self.nb.root, from.nb.root, 'root')
+  },
+})
+
 /**
  * Capability removes an upload (identified by it's root CID) from the upload
  * list. Please note that removing an upload does not delete corresponding shards

packages/capabilities/src/utils.js

@@ -60,7 +60,7 @@ export function equal(child, parent, constraint) {
 }
 
 /**
- * @template {Types.ParsedCapability<"store/add"|"store/remove", Types.URI<'did:'>, {link?: Types.Link<unknown, number, number, 0|1>}>} T
+ * @template {Types.ParsedCapability<"store/add"|"store/get"|"store/remove", Types.URI<'did:'>, {link?: Types.Link<unknown, number, number, 0|1>}>} T
  * @param {T} claimed
  * @param {T} delegated
  * @returns {Types.Result<{}, Types.Failure>}

packages/upload-api/src/store.js

@@ -1,4 +1,5 @@
 import { storeAddProvider } from './store/add.js'
+import { storeGetProvider } from './store/get.js'
 import { storeListProvider } from './store/list.js'
 import { storeRemoveProvider } from './store/remove.js'
 import * as API from './types.js'
@@ -9,6 +10,7 @@ import * as API from './types.js'
 export function createService(context) {
   return {
     add: storeAddProvider(context),
+    get: storeGetProvider(context),
     list: storeListProvider(context),
     remove: storeRemoveProvider(context),
   }

packages/upload-api/src/store/get.js

@@ -0,0 +1,29 @@
+import * as Server from '@ucanto/server'
+import * as Store from '@web3-storage/capabilities/store'
+import * as API from '../types.js'
+
+/**
+ * @param {API.StoreServiceContext} context
+ * @returns {API.ServiceMethod<API.StoreGet, API.StoreGetSuccess, API.Failure>}
+ */
+export function storeGetProvider(context) {
+  return Server.provide(Store.get, async ({ capability }) => {
+    const { link } = capability.nb
+    if (!link) {
+      return Server.fail('nb.link must be set')
+    }
+    const space = Server.DID.parse(capability.with).did()
+    const res = await context.storeTable.get(space, link)
+    if (!res) {
+      return { 
+        error: {
+          name: 'ShardNotFound',
+          message: 'Shard not found'
+        }
+      }
+    }
+    return {
+      ok: res
+    }
+  })
+}

packages/upload-api/src/types.ts

@@ -59,6 +59,7 @@ export interface DebugEmail extends Email {
 
 import {
   StoreAdd,
+  StoreGet,
   StoreAddSuccess,
   StoreRemove,
   StoreRemoveSuccess,
@@ -67,6 +68,7 @@ import {
   StoreListSuccess,
   StoreListItem,
   UploadAdd,
+  UploadGet,
   UploadAddSuccess,
   UploadRemove,
   UploadRemoveSuccess,
@@ -116,9 +118,13 @@ import {
   ProviderAddFailure,
   SpaceInfo,
   ProviderDID,
+  StoreGetFailure,
+  UploadGetFailure,
   UCANRevoke,
   ListResponse,
   CARLink,
+  StoreGetSuccess,
+  UploadGetSuccess,
 } from '@web3-storage/capabilities/types'
 import * as Capabilities from '@web3-storage/capabilities'
 import { RevocationsStorage } from './types/revocations'
@@ -142,11 +148,13 @@ export type { RateLimitsStorage, RateLimit } from './types/rate-limits'
 export interface Service {
   store: {
     add: ServiceMethod<StoreAdd, StoreAddSuccess, Failure>
+    get: ServiceMethod<StoreGet, StoreGetSuccess, StoreGetFailure>
     remove: ServiceMethod<StoreRemove, StoreRemoveSuccess, StoreRemoveFailure>
     list: ServiceMethod<StoreList, StoreListSuccess, Failure>
   }
   upload: {
     add: ServiceMethod<UploadAdd, UploadAddSuccess, Failure>
+    get: ServiceMethod<UploadGet, UploadGetSuccess, UploadGetFailure>
     remove: ServiceMethod<UploadRemove, UploadRemoveSuccess, Failure>
     list: ServiceMethod<UploadList, UploadListSuccess, Failure>
   }
@@ -330,9 +338,7 @@ export interface UcantoServerTestContext
   fetch: typeof fetch
 }
 
-export interface StoreTestContext {
-  testStoreTable: TestStoreTable
-}
+export interface StoreTestContext {}
 
 export interface UploadTestContext {}
 
@@ -372,37 +378,27 @@ export interface DudewhereBucket {
 }
 
 export interface StoreTable {
-  inspect: (link: UnknownLink) => Promise<StoreGetOk>
+  inspect: (link: UnknownLink) => Promise<StoreInspectOk>
   exists: (space: DID, link: UnknownLink) => Promise<boolean>
-  get: (space: DID, link: UnknownLink) => Promise<StoreAddOutput | undefined>
   insert: (item: StoreAddInput) => Promise<StoreAddOutput>
   remove: (space: DID, link: UnknownLink) => Promise<void>
   list: (
     space: DID,
     options?: ListOptions
-  ) => Promise<ListResponse<StoreListItem>>
-}
-
-export interface TestStoreTable {
-  get(
-    space: DID,
-    link: UnknownLink
-  ): Promise<
-    (StoreAddInput & StoreListItem & { insertedAt: string }) | undefined
-  >
+    ) => Promise<ListResponse<StoreAddInput & StoreListItem>>
+  get: (space: DID,link: UnknownLink) => Promise<(StoreListItem) | undefined>
 }
 
 export interface UploadTable {
-  inspect: (link: UnknownLink) => Promise<UploadGetOk>
+  inspect: (link: UnknownLink) => Promise<UploadInspectOk>
   exists: (space: DID, root: UnknownLink) => Promise<boolean>
   insert: (item: UploadAddInput) => Promise<UploadAddSuccess>
   remove: (space: DID, root: UnknownLink) => Promise<UploadRemoveSuccess | null>
   list: (
     space: DID,
     options?: ListOptions
-  ) => Promise<
-    ListResponse<UploadListItem & { insertedAt: string; updatedAt: string }>
-  >
+    ) => Promise<ListResponse<UploadListItem>>
+  get: (space: DID,link: UnknownLink) => Promise<(UploadListItem) | undefined>
 }
 
 export type SpaceInfoSuccess = {
@@ -437,10 +433,14 @@ export interface StoreAddInput {
   invocation: UCANLink
 }
 
+export interface StoreMetadata {
+  insertedAt: string
+}
+
 export interface StoreAddOutput
   extends Omit<StoreAddInput, 'space' | 'issuer' | 'invocation'> {}
 
-export interface StoreGetOk {
+export interface StoreInspectOk {
   spaces: Array<{ did: DID; insertedAt: string }>
 }
 
@@ -452,7 +452,7 @@ export interface UploadAddInput {
   invocation: UCANLink
 }
 
-export interface UploadGetOk {
+export interface UploadInspectOk {
   spaces: Array<{ did: DID; insertedAt: string }>
 }
 

packages/upload-api/src/upload.js

@@ -1,4 +1,5 @@
 import { uploadAddProvider } from './upload/add.js'
+import { uploadGetProvider } from './upload/get.js'
 import { uploadListProvider } from './upload/list.js'
 import { uploadRemoveProvider } from './upload/remove.js'
 import * as API from './types.js'
@@ -9,6 +10,7 @@ import * as API from './types.js'
 export function createService(context) {
   return {
     add: uploadAddProvider(context),
+    get: uploadGetProvider(context),
     list: uploadListProvider(context),
     remove: uploadRemoveProvider(context),
   }

packages/upload-api/src/upload/get.js

@@ -0,0 +1,29 @@
+import * as Server from '@ucanto/server'
+import * as Upload from '@web3-storage/capabilities/upload'
+import * as API from '../types.js'
+
+/**
+ * @param {API.UploadServiceContext} context
+ * @returns {API.ServiceMethod<API.UploadGet, API.UploadGetSuccess, API.Failure>}
+ */
+export function uploadGetProvider(context) {
+  return Server.provide(Upload.get, async ({ capability }) => {
+    const { root } = capability.nb
+    if (!root) {
+      return Server.fail('nb.root must be set')
+    }
+    const space = Server.DID.parse(capability.with).did()
+    const res = await context.uploadTable.get(space, root)
+    if (!res) {
+      return { 
+        error: {
+          name: 'UploadNotFound',
+          message: 'Upload not found'
+        }
+      }
+    }
+    return {
+      ok: res
+    }
+  })
+}