Files
probo/pkg/server/api/api.go
Sacha Al Himdani 8c02c53315 Update copyright headers across all Go files
Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>
2026-03-25 17:38:32 +01:00

233 lines
6.7 KiB
Go

// Copyright (c) 2025-2026 Probo Inc <hello@getprobo.com>.
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
package api
import (
"errors"
"fmt"
"net/http"
"time"
"github.com/go-chi/chi/v5"
"github.com/go-chi/cors"
"go.gearno.de/kit/httpserver"
"go.gearno.de/kit/log"
"go.probo.inc/probo/pkg/baseurl"
"go.probo.inc/probo/pkg/connector"
"go.probo.inc/probo/pkg/esign"
"go.probo.inc/probo/pkg/file"
"go.probo.inc/probo/pkg/iam"
"go.probo.inc/probo/pkg/mailman"
"go.probo.inc/probo/pkg/probo"
"go.probo.inc/probo/pkg/securecookie"
connect_v1 "go.probo.inc/probo/pkg/server/api/connect/v1"
console_v1 "go.probo.inc/probo/pkg/server/api/console/v1"
files_v1 "go.probo.inc/probo/pkg/server/api/files/v1"
mcp_v1 "go.probo.inc/probo/pkg/server/api/mcp/v1"
slack_v1 "go.probo.inc/probo/pkg/server/api/slack/v1"
trust_v1 "go.probo.inc/probo/pkg/server/api/trust/v1"
"go.probo.inc/probo/pkg/slack"
"go.probo.inc/probo/pkg/trust"
)
type (
Config struct {
BaseURL *baseurl.BaseURL
AllowedOrigins []string
Probo *probo.Service
File *file.Service
IAM *iam.Service
Trust *trust.Service
ESign *esign.Service
Slack *slack.Service
Mailman *mailman.Service
Cookie securecookie.Config
TokenSecret string
ConnectorRegistry *connector.ConnectorRegistry
CustomDomainCname string
Logger *log.Logger
}
MCPConfig struct {
Version string
RequestTimeout time.Duration
MaxRequestSize int64
}
Server struct {
cfg Config
csrf *http.CrossOriginProtection
compliancePageHandler http.Handler
consoleHandler http.Handler
filesHandler http.Handler
mcpHandler http.Handler
slackHandler http.Handler
connectHandler http.Handler
}
)
var (
ErrMissingProboService = errors.New("server configuration requires a valid probo.Service instance")
ErrMissingIAMService = errors.New("server configuration requires a valid iam.Service instance")
ErrMissingSlackService = errors.New("server configuration requires a valid slack.Service instance")
)
func methodNotAllowed(w http.ResponseWriter, r *http.Request) {
defer func() { _ = r.Body.Close() }()
httpserver.RenderJSON(
w,
http.StatusMethodNotAllowed,
map[string]string{
"error": "method not allowed",
},
)
}
func notFound(w http.ResponseWriter, r *http.Request) {
defer func() { _ = r.Body.Close() }()
httpserver.RenderJSON(
w,
http.StatusNotFound,
map[string]string{
"error": "not found",
},
)
}
func NewServer(cfg Config) (*Server, error) {
if cfg.Probo == nil {
return nil, ErrMissingProboService
}
if cfg.IAM == nil {
return nil, ErrMissingIAMService
}
if cfg.Slack == nil {
return nil, ErrMissingSlackService
}
csrf := http.NewCrossOriginProtection()
for _, origin := range cfg.AllowedOrigins {
if err := csrf.AddTrustedOrigin(origin); err != nil {
return nil, fmt.Errorf("cannot add trusted origin %q: %w", origin, err)
}
}
// The SAML Assertion Consumer Service endpoint receives cross-origin
// POSTs from external identity providers by design.
csrf.AddInsecureBypassPattern("POST /connect/v1/saml/2.0/consume")
csrf.SetDenyHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
httpserver.RenderJSON(
w,
http.StatusForbidden,
map[string]string{
"error": "cross-origin request denied",
},
)
}))
return &Server{
cfg: cfg,
csrf: csrf,
compliancePageHandler: trust_v1.NewMux(
cfg.Logger.Named("trust.v1"),
cfg.IAM,
cfg.Trust,
cfg.ESign,
cfg.Mailman,
cfg.Cookie,
cfg.TokenSecret,
cfg.BaseURL,
),
consoleHandler: console_v1.NewMux(
cfg.Logger.Named("console.v1"),
cfg.Probo,
cfg.IAM,
cfg.ESign,
cfg.Mailman,
cfg.Cookie,
cfg.TokenSecret,
cfg.ConnectorRegistry,
cfg.BaseURL,
cfg.CustomDomainCname,
),
filesHandler: files_v1.NewMux(
cfg.Logger.Named("files.v1"),
cfg.File,
),
mcpHandler: mcp_v1.NewMux(
cfg.Logger.Named("mcp.v1"),
cfg.Probo,
cfg.IAM,
cfg.TokenSecret,
),
slackHandler: slack_v1.NewMux(
cfg.Logger.Named("slack.v1"),
cfg.Slack,
cfg.Trust,
),
connectHandler: connect_v1.NewMux(
cfg.Logger.Named("connect.v1"),
cfg.IAM,
cfg.Cookie,
cfg.TokenSecret,
cfg.BaseURL,
),
}, nil
}
func (s *Server) CompliancePageHandler() http.Handler {
return s.compliancePageHandler
}
func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
corsOpts := cors.Options{
AllowedOrigins: s.cfg.AllowedOrigins,
AllowedMethods: []string{"GET", "POST", "PUT", "DELETE", "HEAD"},
AllowedHeaders: []string{"content-type", "traceparent", "authorization"},
ExposedHeaders: []string{"x-request-id"},
AllowCredentials: true,
MaxAge: 600, // 10 minutes (chrome >= 76 maximum value c.f. https://source.chromium.org/chromium/chromium/src/+/main:services/network/public/cpp/cors/preflight_result.cc;drc=52002151773d8cd9ffc5f557cd7cc880fddcae3e;l=36)
OptionsPassthrough: false,
Debug: false,
}
w.Header().Set("X-Frame-Options", "DENY")
w.Header().Set("X-XSS-Protection", "0")
w.Header().Set("X-Content-Type-Options", "nosniff")
w.Header().Set("Referrer-Policy", "no-referrer")
w.Header().Set("Content-Security-Policy", "default-src 'self'")
w.Header().Set("Permissions-Policy", "microphone=(), camera=(), geolocation=()")
router := chi.NewRouter()
router.MethodNotAllowed(methodNotAllowed)
router.NotFound(notFound)
router.Use(cors.Handler(corsOpts))
router.Mount("/console/v1", http.StripPrefix("/console/v1", s.consoleHandler))
router.Mount("/connect/v1", http.StripPrefix("/connect/v1", s.connectHandler))
router.Mount("/files/v1", http.StripPrefix("/files/v1", s.filesHandler))
router.Mount("/trust/v1", http.StripPrefix("/trust/v1", s.compliancePageHandler))
router.Mount("/mcp/v1", http.StripPrefix("/mcp/v1", s.mcpHandler))
router.Mount("/slack/v1", http.StripPrefix("/slack/v1", s.slackHandler))
s.csrf.Handler(router).ServeHTTP(w, r)
}