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plugins-libreoffice.go
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plugins-libreoffice.go
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package rest
import (
"context"
"crypto/tls"
"fmt"
"go.uber.org/zap"
"net/http"
"net/http/httputil"
"net/url"
"github.com/pydio/cells/v4/common"
"github.com/pydio/cells/v4/common/config"
"github.com/pydio/cells/v4/common/log"
"github.com/pydio/cells/v4/common/runtime"
"github.com/pydio/cells/v4/common/server"
"github.com/pydio/cells/v4/common/service"
)
const LibreOffice = "libreoffice"
var (
registeredPatterns []string
)
func init() {
config.RegisterProxy("frontend/plugin/editor.libreoffice", config.ProxySetter(func(s config.Store, val interface{}, pa ...string) error {
if m, o := val.(map[string]interface{}); o {
if b, isBool := m[config.KeyFrontPluginEnabled].(bool); isBool {
_ = config.Set(b, "services", common.ServiceWebNamespace_+LibreOffice, "enabled")
}
}
return s.Val(pa...).Set(val)
}))
runtime.Register("main", func(ctx context.Context) {
service.NewService(
service.Name(common.ServiceWebNamespace_+LibreOffice),
service.Context(ctx),
service.Tag(common.ServiceTagFrontend),
service.AutoRestart(true),
service.Description("Grpc service for internal requests about frontend manifest"),
service.WithHTTP(func(ctx context.Context, mux server.HttpMux) error {
pconf := config.Get("frontend", "plugin", "editor.libreoffice")
enabled := pconf.Val(config.KeyFrontPluginEnabled).Default(false).Bool()
if !enabled {
log.Logger(ctx).Info("Skipping LibreOffice plugin as not enabled")
return nil
}
log.Logger(ctx).Info("Starting LibreOffice proxy")
useTls := pconf.Val("LIBREOFFICE_SSL").Default(true).Bool()
skipVerify := pconf.Val("LIBREOFFICE_SSL_SKIP_VERIFY").Default(true).Bool()
host := pconf.Val("LIBREOFFICE_HOST").Default("localhost").String()
port := pconf.Val("LIBREOFFICE_PORT").Default("9980").String()
version := pconf.Val("LIBREOFFICE_CODE_VERSION").Default("v6").String()
LeafletURI := "leaflet"
WebsocketURI := "lool"
if version != "v6" {
LeafletURI = "browser"
WebsocketURI = "cool"
}
scheme := "http"
if useTls {
scheme = "https"
}
u, err := url.Parse(fmt.Sprintf("%s://%s:%s", scheme, host, port))
if err != nil {
return err
}
// Setup a reverse proxy
proxy := httputil.NewSingleHostReverseProxy(u)
proxy.ErrorHandler = func(writer http.ResponseWriter, request *http.Request, err error) {
log.Logger(ctx).Error("Error in libreoffice reverse proxy: "+err.Error(), zap.Error(err))
writer.WriteHeader(http.StatusBadGateway)
}
if useTls && skipVerify {
proxy.Transport = &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: true}}
}
mux.HandleFunc("/"+LeafletURI+"/", func(writer http.ResponseWriter, request *http.Request) {
proxy.ServeHTTP(writer, request)
})
mux.HandleFunc("/"+WebsocketURI+"/", func(writer http.ResponseWriter, request *http.Request) {
proxy.ServeHTTP(writer, request)
})
mux.HandleFunc("/hosting/discovery/", func(writer http.ResponseWriter, request *http.Request) {
proxy.ServeHTTP(writer, request)
})
registeredPatterns = append(registeredPatterns, "/"+LeafletURI+"/", "/"+WebsocketURI+"/", "/hosting/discovery/")
return nil
}),
service.WithHTTPStop(func(ctx context.Context, mux server.HttpMux) error {
pp, ok := mux.(server.PatternsProvider)
if !ok {
return nil
}
for _, p := range registeredPatterns {
log.Logger(ctx).Info("Deregistering pattern " + p + " while stopping service")
pp.DeregisterPattern(p)
}
registeredPatterns = []string{}
return nil
}),
)
})
}