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workspacebuildparam.go
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/
workspacebuildparam.go
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package httpmw
import (
"context"
"database/sql"
"errors"
"fmt"
"net/http"
"github.com/go-chi/chi/v5"
"github.com/coder/coder/coderd/database"
"github.com/coder/coder/coderd/httpapi"
)
type workspaceBuildParamContextKey struct{}
// WorkspaceBuildParam returns the workspace build from the ExtractWorkspaceBuildParam handler.
func WorkspaceBuildParam(r *http.Request) database.WorkspaceBuild {
workspaceBuild, ok := r.Context().Value(workspaceBuildParamContextKey{}).(database.WorkspaceBuild)
if !ok {
panic("developer error: workspace build param middleware not provided")
}
return workspaceBuild
}
// ExtractWorkspaceBuildParam grabs workspace build from the "workspacebuild" URL parameter.
func ExtractWorkspaceBuildParam(db database.Store) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
workspaceBuildID, parsed := parseUUID(rw, r, "workspacebuild")
if !parsed {
return
}
workspaceBuild, err := db.GetWorkspaceBuildByID(r.Context(), workspaceBuildID)
if errors.Is(err, sql.ErrNoRows) {
httpapi.Write(rw, http.StatusNotFound, httpapi.Response{
Message: fmt.Sprintf("Workspace build %q does not exist.", workspaceBuildID),
})
return
}
if err != nil {
httpapi.Write(rw, http.StatusInternalServerError, httpapi.Response{
Message: "Internal error fetching workspace build.",
Detail: err.Error(),
})
return
}
ctx := context.WithValue(r.Context(), workspaceBuildParamContextKey{}, workspaceBuild)
// This injects the "workspace" parameter, because it's expected the consumer
// will want to use the Workspace middleware to ensure the caller owns the workspace.
chi.RouteContext(ctx).URLParams.Add("workspace", workspaceBuild.WorkspaceID.String())
next.ServeHTTP(rw, r.WithContext(ctx))
})
}
}