fix(restapi): Add cors headers when the request is returning errors (#942)

* Add cors headers when the request is returning errors

* Prevent nim presto to send multiple cors headers
This commit is contained in:
Arnaud 2024-10-10 10:25:07 +02:00 committed by Slava
parent 29549935ad
commit 859b7ea0e5
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GPG Key ID: 351E7AA9BD0DFEB8
1 changed files with 103 additions and 79 deletions

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@ -107,19 +107,32 @@ proc retrieveCid(
if not stream.isNil:
await stream.close()
proc buildCorsHeaders(httpMethod: string, allowedOrigin: Option[string]): seq[(string, string)] =
var headers: seq[(string, string)] = newSeq[(string, string)]()
if corsOrigin =? allowedOrigin:
headers.add(("Access-Control-Allow-Origin", corsOrigin))
headers.add(("Access-Control-Allow-Methods", httpMethod & ", OPTIONS"))
headers.add(("Access-Control-Max-Age", "86400"))
return headers
proc setCorsHeaders(resp: HttpResponseRef, httpMethod: string, origin: string) =
resp.setHeader("Access-Control-Allow-Origin", origin)
resp.setHeader("Access-Control-Allow-Methods", httpMethod & ", OPTIONS")
resp.setHeader("Access-Control-Max-Age", "86400")
proc initDataApi(node: CodexNodeRef, repoStore: RepoStore, router: var RestRouter) =
let allowedOrigin = router.allowedOrigin # prevents capture inside of api defintion
router.api(
MethodOptions,
"/api/codex/v1/data") do (
resp: HttpResponseRef) -> RestApiResponse:
if corsOrigin =? allowedOrigin:
resp.setHeader("Access-Control-Allow-Origin", corsOrigin)
resp.setHeader("Access-Control-Allow-Methods", "POST, OPTIONS")
resp.setCorsHeaders("POST", corsOrigin)
resp.setHeader("Access-Control-Allow-Headers", "content-type")
resp.setHeader("Access-Control-Max-Age", "86400")
resp.status = Http204
await resp.sendBody("")
@ -176,18 +189,20 @@ proc initDataApi(node: CodexNodeRef, repoStore: RepoStore, router: var RestRoute
MethodGet,
"/api/codex/v1/data/{cid}") do (
cid: Cid, resp: HttpResponseRef) -> RestApiResponse:
var headers = buildCorsHeaders("GET", allowedOrigin)
## Download a file from the local node in a streaming
## manner
if cid.isErr:
return RestApiResponse.error(
Http400,
$cid.error())
$cid.error(),
headers = headers)
if corsOrigin =? allowedOrigin:
resp.setHeader("Access-Control-Allow-Origin", corsOrigin)
resp.setHeader("Access-Control-Allow-Methods", "GET, OPTIONS")
resp.setCorsHeaders("GET", corsOrigin)
resp.setHeader("Access-Control-Headers", "X-Requested-With")
resp.setHeader("Access-Control-Max-Age", "86400")
await node.retrieveCid(cid.get(), local = true, resp=resp)
@ -199,16 +214,16 @@ proc initDataApi(node: CodexNodeRef, repoStore: RepoStore, router: var RestRoute
## manner
##
var headers = buildCorsHeaders("GET", allowedOrigin)
if cid.isErr:
return RestApiResponse.error(
Http400,
$cid.error())
$cid.error(), headers = headers)
if corsOrigin =? allowedOrigin:
resp.setHeader("Access-Control-Allow-Origin", corsOrigin)
resp.setHeader("Access-Control-Allow-Methods", "GET, OPTIONS")
resp.setCorsHeaders("GET", corsOrigin)
resp.setHeader("Access-Control-Headers", "X-Requested-With")
resp.setHeader("Access-Control-Max-Age", "86400")
await node.retrieveCid(cid.get(), local = false, resp=resp)
@ -229,31 +244,34 @@ proc initSalesApi(node: CodexNodeRef, router: var RestRouter) =
router.api(
MethodGet,
"/api/codex/v1/sales/slots") do () -> RestApiResponse:
var headers = buildCorsHeaders("GET", allowedOrigin)
## Returns active slots for the host
try:
without contracts =? node.contracts.host:
return RestApiResponse.error(Http503, "Persistence is not enabled")
return RestApiResponse.error(Http503, "Persistence is not enabled", headers = headers)
let json = %(await contracts.sales.mySlots())
return RestApiResponse.response($json, contentType="application/json")
return RestApiResponse.response($json, contentType="application/json", headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
router.api(
MethodGet,
"/api/codex/v1/sales/slots/{slotId}") do (slotId: SlotId) -> RestApiResponse:
## Returns active slot with id {slotId} for the host. Returns 404 if the
## slot is not active for the host.
var headers = buildCorsHeaders("GET", allowedOrigin)
without contracts =? node.contracts.host:
return RestApiResponse.error(Http503, "Persistence is not enabled")
return RestApiResponse.error(Http503, "Persistence is not enabled", headers = headers)
without slotId =? slotId.tryGet.catch, error:
return RestApiResponse.error(Http400, error.msg)
return RestApiResponse.error(Http400, error.msg, headers = headers)
without agent =? await contracts.sales.activeSale(slotId):
return RestApiResponse.error(Http404, "Provider not filling slot")
return RestApiResponse.error(Http404, "Provider not filling slot", headers = headers)
let restAgent = RestSalesAgent(
state: agent.state() |? "none",
@ -263,25 +281,26 @@ proc initSalesApi(node: CodexNodeRef, router: var RestRouter) =
reservation: agent.data.reservation,
)
return RestApiResponse.response(restAgent.toJson, contentType="application/json")
return RestApiResponse.response(restAgent.toJson, contentType="application/json", headers = headers)
router.api(
MethodGet,
"/api/codex/v1/sales/availability") do () -> RestApiResponse:
## Returns storage that is for sale
var headers = buildCorsHeaders("GET", allowedOrigin)
try:
without contracts =? node.contracts.host:
return RestApiResponse.error(Http503, "Persistence is not enabled")
return RestApiResponse.error(Http503, "Persistence is not enabled", headers = headers)
without avails =? (await contracts.sales.context.reservations.all(Availability)), err:
return RestApiResponse.error(Http500, err.msg)
return RestApiResponse.error(Http500, err.msg, headers = headers)
let json = %avails
return RestApiResponse.response($json, contentType="application/json")
return RestApiResponse.response($json, contentType="application/json", headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
router.rawApi(
MethodPost,
@ -294,12 +313,7 @@ proc initSalesApi(node: CodexNodeRef, router: var RestRouter) =
## minPrice - minimal price paid (in amount of tokens) for the whole hosted request's slot for the request's duration
## maxCollateral - maximum collateral user is willing to pay per filled Slot (in amount of tokens)
var headers = newSeq[(string,string)]()
if corsOrigin =? allowedOrigin:
headers.add(("Access-Control-Allow-Origin", corsOrigin))
headers.add(("Access-Control-Allow-Methods", "POST, OPTIONS"))
headers.add(("Access-Control-Max-Age", "86400"))
var headers = buildCorsHeaders("POST", allowedOrigin)
try:
without contracts =? node.contracts.host:
@ -340,9 +354,7 @@ proc initSalesApi(node: CodexNodeRef, router: var RestRouter) =
"/api/codex/v1/sales/availability/{id}") do (id: AvailabilityId, resp: HttpResponseRef) -> RestApiResponse:
if corsOrigin =? allowedOrigin:
resp.setHeader("Access-Control-Allow-Origin", corsOrigin)
resp.setHeader("Access-Control-Allow-Methods", "PATCH, OPTIONS")
resp.setHeader("Access-Control-Max-Age", "86400")
resp.setCorsHeaders("PATCH", corsOrigin)
resp.status = Http204
await resp.sendBody("")
@ -358,7 +370,6 @@ proc initSalesApi(node: CodexNodeRef, router: var RestRouter) =
## duration - maximum time the storage should be sold for (in seconds)
## minPrice - minimum price to be paid (in amount of tokens)
## maxCollateral - maximum collateral user is willing to pay per filled Slot (in amount of tokens)
try:
without contracts =? node.contracts.host:
return RestApiResponse.error(Http503, "Persistence is not enabled")
@ -414,33 +425,34 @@ proc initSalesApi(node: CodexNodeRef, router: var RestRouter) =
MethodGet,
"/api/codex/v1/sales/availability/{id}/reservations") do (id: AvailabilityId) -> RestApiResponse:
## Gets Availability's reservations.
var headers = buildCorsHeaders("GET", allowedOrigin)
try:
without contracts =? node.contracts.host:
return RestApiResponse.error(Http503, "Persistence is not enabled")
return RestApiResponse.error(Http503, "Persistence is not enabled", headers = headers)
without id =? id.tryGet.catch, error:
return RestApiResponse.error(Http400, error.msg)
return RestApiResponse.error(Http400, error.msg, headers = headers)
without keyId =? id.key.tryGet.catch, error:
return RestApiResponse.error(Http400, error.msg)
return RestApiResponse.error(Http400, error.msg, headers = headers)
let reservations = contracts.sales.context.reservations
let market = contracts.sales.context.market
if error =? (await reservations.get(keyId, Availability)).errorOption:
if error of NotExistsError:
return RestApiResponse.error(Http404, "Availability not found")
return RestApiResponse.error(Http404, "Availability not found", headers = headers)
else:
return RestApiResponse.error(Http500, error.msg)
return RestApiResponse.error(Http500, error.msg, headers = headers)
without availabilitysReservations =? (await reservations.all(Reservation, id)), err:
return RestApiResponse.error(Http500, err.msg)
return RestApiResponse.error(Http500, err.msg, headers = headers)
# TODO: Expand this structure with information about the linked StorageRequest not only RequestID
return RestApiResponse.response(availabilitysReservations.toJson, contentType="application/json")
return RestApiResponse.response(availabilitysReservations.toJson, contentType="application/json", headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
proc initPurchasingApi(node: CodexNodeRef, router: var RestRouter) =
let allowedOrigin = router.allowedOrigin
@ -448,6 +460,8 @@ proc initPurchasingApi(node: CodexNodeRef, router: var RestRouter) =
router.rawApi(
MethodPost,
"/api/codex/v1/storage/request/{cid}") do (cid: Cid) -> RestApiResponse:
var headers = buildCorsHeaders("POST", allowedOrigin)
## Create a request for storage
##
## cid - the cid of a previously uploaded dataset
@ -458,14 +472,6 @@ proc initPurchasingApi(node: CodexNodeRef, router: var RestRouter) =
## nodes - number of nodes the content should be stored on
## tolerance - allowed number of nodes that can be lost before content is lost
## colateral - requested collateral from hosts when they fill slot
var headers = newSeq[(string,string)]()
if corsOrigin =? allowedOrigin:
headers.add(("Access-Control-Allow-Origin", corsOrigin))
headers.add(("Access-Control-Allow-Methods", "POST, OPTIONS"))
headers.add(("Access-Control-Max-Age", "86400"))
try:
without contracts =? node.contracts.client:
return RestApiResponse.error(Http503, "Persistence is not enabled", headers = headers)
@ -522,21 +528,22 @@ proc initPurchasingApi(node: CodexNodeRef, router: var RestRouter) =
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500, headers = headers)
router.api(
MethodGet,
"/api/codex/v1/storage/purchases/{id}") do (
id: PurchaseId) -> RestApiResponse:
var headers = buildCorsHeaders("GET", allowedOrigin)
try:
without contracts =? node.contracts.client:
return RestApiResponse.error(Http503, "Persistence is not enabled")
return RestApiResponse.error(Http503, "Persistence is not enabled", headers = headers)
without id =? id.tryGet.catch, error:
return RestApiResponse.error(Http400, error.msg)
return RestApiResponse.error(Http400, error.msg, headers = headers)
without purchase =? contracts.purchasing.getPurchase(id):
return RestApiResponse.error(Http404)
return RestApiResponse.error(Http404, headers = headers)
let json = % RestPurchase(
state: purchase.state |? "none",
@ -545,25 +552,29 @@ proc initPurchasingApi(node: CodexNodeRef, router: var RestRouter) =
requestId: purchase.requestId
)
return RestApiResponse.response($json, contentType="application/json")
return RestApiResponse.response($json, contentType="application/json", headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
router.api(
MethodGet,
"/api/codex/v1/storage/purchases") do () -> RestApiResponse:
var headers = buildCorsHeaders("GET", allowedOrigin)
try:
without contracts =? node.contracts.client:
return RestApiResponse.error(Http503, "Persistence is not enabled")
return RestApiResponse.error(Http503, "Persistence is not enabled", headers = headers)
let purchaseIds = contracts.purchasing.getPurchaseIds()
return RestApiResponse.response($ %purchaseIds, contentType="application/json")
return RestApiResponse.response($ %purchaseIds, contentType="application/json", headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
proc initNodeApi(node: CodexNodeRef, conf: CodexConf, router: var RestRouter) =
let allowedOrigin = router.allowedOrigin
## various node management api's
##
router.api(
@ -571,33 +582,37 @@ proc initNodeApi(node: CodexNodeRef, conf: CodexConf, router: var RestRouter) =
"/api/codex/v1/spr") do () -> RestApiResponse:
## Returns node SPR in requested format, json or text.
##
var headers = buildCorsHeaders("GET", allowedOrigin)
try:
without spr =? node.discovery.dhtRecord:
return RestApiResponse.response("", status=Http503, contentType="application/json")
return RestApiResponse.response("", status=Http503, contentType="application/json", headers = headers)
if $preferredContentType().get() == "text/plain":
return RestApiResponse.response(spr.toURI, contentType="text/plain")
return RestApiResponse.response(spr.toURI, contentType="text/plain", headers = headers)
else:
return RestApiResponse.response($ %* {"spr": spr.toURI}, contentType="application/json")
return RestApiResponse.response($ %* {"spr": spr.toURI}, contentType="application/json", headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
router.api(
MethodGet,
"/api/codex/v1/peerid") do () -> RestApiResponse:
## Returns node's peerId in requested format, json or text.
##
var headers = buildCorsHeaders("GET", allowedOrigin)
try:
let id = $node.switch.peerInfo.peerId
if $preferredContentType().get() == "text/plain":
return RestApiResponse.response(id, contentType="text/plain")
return RestApiResponse.response(id, contentType="text/plain", headers = headers)
else:
return RestApiResponse.response($ %* {"id": id}, contentType="application/json")
return RestApiResponse.response($ %* {"id": id}, contentType="application/json", headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
router.api(
MethodGet,
@ -613,11 +628,13 @@ proc initNodeApi(node: CodexNodeRef, conf: CodexConf, router: var RestRouter) =
##
## `addrs` the listening addresses of the peers to dial, eg the one specified with `--listen-addrs`
##
var headers = buildCorsHeaders("GET", allowedOrigin)
if peerId.isErr:
return RestApiResponse.error(
Http400,
$peerId.error())
$peerId.error(),
headers = headers)
let addresses = if addrs.isOk and addrs.get().len > 0:
addrs.get()
@ -625,22 +642,26 @@ proc initNodeApi(node: CodexNodeRef, conf: CodexConf, router: var RestRouter) =
without peerRecord =? (await node.findPeer(peerId.get())):
return RestApiResponse.error(
Http400,
"Unable to find Peer!")
"Unable to find Peer!",
headers = headers)
peerRecord.addresses.mapIt(it.address)
try:
await node.connect(peerId.get(), addresses)
return RestApiResponse.response("Successfully connected to peer")
return RestApiResponse.response("Successfully connected to peer", headers = headers)
except DialFailedError:
return RestApiResponse.error(Http400, "Unable to dial peer")
return RestApiResponse.error(Http400, "Unable to dial peer", headers = headers)
except CatchableError:
return RestApiResponse.error(Http500, "Unknown error dialling peer")
return RestApiResponse.error(Http500, "Unknown error dialling peer", headers = headers)
proc initDebugApi(node: CodexNodeRef, conf: CodexConf, router: var RestRouter) =
let allowedOrigin = router.allowedOrigin
router.api(
MethodGet,
"/api/codex/v1/debug/info") do () -> RestApiResponse:
## Print rudimentary node information
##
var headers = buildCorsHeaders("GET", allowedOrigin)
try:
let table = RestRoutingTable.init(node.discovery.protocol.routingTable)
@ -664,10 +685,10 @@ proc initDebugApi(node: CodexNodeRef, conf: CodexConf, router: var RestRouter) =
}
# return pretty json for human readability
return RestApiResponse.response(json.pretty(), contentType="application/json")
return RestApiResponse.response(json.pretty(), contentType="application/json", headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
router.api(
MethodPost,
@ -679,26 +700,28 @@ proc initDebugApi(node: CodexNodeRef, conf: CodexConf, router: var RestRouter) =
##
## `level` - chronicles log level
##
var headers = buildCorsHeaders("POST", allowedOrigin)
try:
without res =? level and level =? res:
return RestApiResponse.error(Http400, "Missing log level")
return RestApiResponse.error(Http400, "Missing log level", headers = headers)
try:
{.gcsafe.}:
updateLogLevel(level)
except CatchableError as exc:
return RestApiResponse.error(Http500, exc.msg)
return RestApiResponse.error(Http500, exc.msg, headers = headers)
return RestApiResponse.response("")
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
when codex_enable_api_debug_peers:
router.api(
MethodGet,
"/api/codex/v1/debug/peer/{peerId}") do (peerId: PeerId) -> RestApiResponse:
var headers = buildCorsHeaders("GET", allowedOrigin)
try:
trace "debug/peer start"
@ -706,14 +729,15 @@ proc initDebugApi(node: CodexNodeRef, conf: CodexConf, router: var RestRouter) =
trace "debug/peer peer not found!"
return RestApiResponse.error(
Http400,
"Unable to find Peer!")
"Unable to find Peer!",
headers = headers)
let json = %RestPeerRecord.init(peerRecord)
trace "debug/peer returning peer record"
return RestApiResponse.response($json)
return RestApiResponse.response($json, headers = headers)
except CatchableError as exc:
trace "Excepting processing request", exc = exc.msg
return RestApiResponse.error(Http500)
return RestApiResponse.error(Http500, headers = headers)
proc initRestApi*(
node: CodexNodeRef,