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docs: Clarify auth scheme

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Signed-off-by: Stanislav Bogatyrev <stanislav@nspcc.ru>
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Stanislav Bogatyrev 2021-05-04 18:19:11 +03:00 committed by Stanislav Bogatyrev
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commit 73bd26bc12
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README.md
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@ -23,12 +23,7 @@ NeoFS HTTP Protocol Gateway bridges NeoFS internal protocol and HTTP standard.
Or you can call `make` to build it from the cloned repository (the binary will Or you can call `make` to build it from the cloned repository (the binary will
end up in `bin/neofs-http-gw`). end up in `bin/neofs-http-gw`).
Or you can also use a [Docker Notable make targets:
image](https://hub.docker.com/r/nspccdev/neofs-http-gw) provided for released
(and occasionaly unreleased) versions of gateway (`:latest` points to the
latest stable release).
### Notable make targets
``` ```
dep Check and ensure dependencies dep Check and ensure dependencies
@ -39,6 +34,11 @@ lint Run linters
version Show current version version Show current version
``` ```
Or you can also use a [Docker
image](https://hub.docker.com/r/nspccdev/neofs-http-gw) provided for released
(and occasionaly unreleased) versions of gateway (`:latest` points to the
latest stable release).
## Execution ## Execution
HTTP gateway itself is not a NeoFS node, so to access NeoFS it uses node's HTTP gateway itself is not a NeoFS node, so to access NeoFS it uses node's
@ -54,13 +54,13 @@ $ neofs-http-gw -p 192.168.130.72:8080
$ HTTP_GW_PEERS_0_ADDRESS=192.168.130.72:8080 neofs-http-gw $ HTTP_GW_PEERS_0_ADDRESS=192.168.130.72:8080 neofs-http-gw
``` ```
### Configuration ## Configuration
In general, everything available as CLI parameter can also be specified via In general, everything available as CLI parameter can also be specified via
environment variables, so they're not specifically mentioned in most cases environment variables, so they're not specifically mentioned in most cases
(see `--help` also). (see `--help` also).
#### Nodes and weights ### Nodes and weights
You can specify multiple `-p` options to add more NeoFS nodes, this will make You can specify multiple `-p` options to add more NeoFS nodes, this will make
gateway spread requests equally among them (using weight 1 for every node): gateway spread requests equally among them (using weight 1 for every node):
@ -78,7 +78,7 @@ $ HTTP_GW_PEERS_0_ADDRESS=192.168.130.72:8080 HTTP_GW_PEERS_0_WEIGHT=9 \
This command will make gateway use 192.168.130.72 for 90% of requests and This command will make gateway use 192.168.130.72 for 90% of requests and
192.168.130.71 for remaining 10%. 192.168.130.71 for remaining 10%.
#### Keys ### Keys
By default gateway autogenerates key pair it will use for NeoFS requests. If By default gateway autogenerates key pair it will use for NeoFS requests. If
for some reason you need to have static keys you can pass them via `--key` for some reason you need to have static keys you can pass them via `--key`
@ -89,7 +89,7 @@ string or (unencrypted) WIF string. Example:
$ neofs-http-gw -p 192.168.130.72:8080 -k KxDgvEKzgSBPPfuVfw67oPQBSjidEiqTHURKSDL1R7yGaGYAeYnr $ neofs-http-gw -p 192.168.130.72:8080 -k KxDgvEKzgSBPPfuVfw67oPQBSjidEiqTHURKSDL1R7yGaGYAeYnr
``` ```
#### Binding and TLS ### Binding and TLS
Gateway binds to `0.0.0.0:8082` by default and you can change that with Gateway binds to `0.0.0.0:8082` by default and you can change that with
`--listen_address` option. `--listen_address` option.
@ -107,7 +107,7 @@ $ neofs-http-gw -p 192.168.130.72:8080 --listen_address 192.168.130.130:443 \
--tls_key=key.pem --tls_certificate=cert.pem --tls_key=key.pem --tls_certificate=cert.pem
``` ```
#### HTTP parameters ### HTTP parameters
You can tune HTTP read and write buffer sizes as well as timeouts with You can tune HTTP read and write buffer sizes as well as timeouts with
`HTTP_GW_WEB_READ_BUFFER_SIZE`, `HTTP_GW_WEB_READ_TIMEOUT`, `HTTP_GW_WEB_READ_BUFFER_SIZE`, `HTTP_GW_WEB_READ_TIMEOUT`,
@ -121,19 +121,19 @@ first and only then try sending it to NeoFS).
`HTTP_GW_WEB_MAX_REQUEST_BODY_SIZE` controls maximum request body size `HTTP_GW_WEB_MAX_REQUEST_BODY_SIZE` controls maximum request body size
limiting uploads to files slightly lower than this limit. limiting uploads to files slightly lower than this limit.
#### NeoFS parameters ### NeoFS parameters
Gateway can automatically set timestamps for uploaded files based on local Gateway can automatically set timestamps for uploaded files based on local
time source, use `HTTP_GW_UPLOAD_HEADER_USE_DEFAULT_TIMESTAMP` environment time source, use `HTTP_GW_UPLOAD_HEADER_USE_DEFAULT_TIMESTAMP` environment
variable to control this behavior. variable to control this behavior.
#### Monitoring and metrics ### Monitoring and metrics
Pprof and Prometheus are integrated into the gateway, but not enabled by Pprof and Prometheus are integrated into the gateway, but not enabled by
default. To enable them use `--pprof` and `--metrics` flags or default. To enable them use `--pprof` and `--metrics` flags or
`HTTP_GW_PPROF`/`HTTP_GW_METRICS` environment variables. `HTTP_GW_PPROF`/`HTTP_GW_METRICS` environment variables.
#### Timeouts ### Timeouts
You can tune gRPC interface parameters with `--connect_timeout` (for You can tune gRPC interface parameters with `--connect_timeout` (for
connection to node) and `--request_timeout` (for request processing over connection to node) and `--request_timeout` (for request processing over
@ -148,7 +148,7 @@ if needed.
All timing options accept values with suffixes, so "15s" is 15 seconds and All timing options accept values with suffixes, so "15s" is 15 seconds and
"2m" is 2 minutes. "2m" is 2 minutes.
#### Logging ### Logging
`--verbose` flag enables gRPC logging and there is a number of environment `--verbose` flag enables gRPC logging and there is a number of environment
variables to tune logging behavior: variables to tune logging behavior:
@ -168,7 +168,7 @@ HTTP_GW_LOGGER_TRACE_LEVEL=string - Logger show trace on level
This gateway intentionally provides limited feature set and doesn't try to This gateway intentionally provides limited feature set and doesn't try to
substitute (or completely wrap) regular gRPC NeoFS interface. You can download substitute (or completely wrap) regular gRPC NeoFS interface. You can download
and upload objects with it, but deleting, searching, managing ACLs, creating and upload objects with it, but deleting, searching, managing ACLs, creating
containers and other activities are not supported and not planned to be containers and other activities are not supported and not planned to be
supported. supported.
### Downloading ### Downloading
@ -180,7 +180,6 @@ requests to `/get/$CID/$OID` path, like this:
``` ```
$ wget http://localhost:8082/get/Dxhf4PNprrJHWWTG5RGLdfLkJiSQ3AQqit1MSnEPRkDZ/2m8PtaoricLouCn5zE8hAFr3gZEBDCZFe9BEgVJTSocY $ wget http://localhost:8082/get/Dxhf4PNprrJHWWTG5RGLdfLkJiSQ3AQqit1MSnEPRkDZ/2m8PtaoricLouCn5zE8hAFr3gZEBDCZFe9BEgVJTSocY
``` ```
There is also more complex interface provided for attribute-based downloads, There is also more complex interface provided for attribute-based downloads,
@ -285,13 +284,28 @@ object ID, like this:
#### Authentication #### Authentication
You can always upload files to public containers (open for anyone to put You can always upload files to public containers (open for anyone to put
objects into), but for restricted containers you need to use bearer tokens objects into), but for restricted containers you need to explicitly allow PUT
(which basically is an owner-signed ACL data, refer to NeoFS documentation for operations for request signed with your HTTP Protocol Gateway keys.
more details). There are two options to pass them to gateway:
If your don't want to manage gateway's secret keys and adjust eACL rules when
gateway configuration changes (new gate, key rotation, etc) or you plan to use
public services, there is an option to let your application backend (or you) to
issue Bearer Tokens ans pass them from the client via gate down to NeoFS level
to grant access.
NeoFS Bearer Token basically is a container owner-signed ACL data (refer to NeoFS
documentation for more details). There are two options to pass them to gateway:
* "Authorization" header with "Bearer" type and base64-encoded token in * "Authorization" header with "Bearer" type and base64-encoded token in
credentials field credentials field
* "__context_bearer_token_key" cookie with base64-encoded token contents * "__context_bearer_token_key" cookie with base64-encoded token contents
For example you have a mobile application frontend with a backend part storing
data in NeoFS. When user authorizes in mobile app, the backend issues a NeoFS
Bearer token and provides it to the frontend. Then the mobile app may generate
some data and upload it via any available NeoFS HTTP Protocol Gateway by adding
the corresponding header to the upload request. Accessing the ACL protected data
works the same way.
### Metrics and Pprof ### Metrics and Pprof
If enabled, Prometheus metrics are available at `/metrics/` path and Pprof at If enabled, Prometheus metrics are available at `/metrics/` path and Pprof at