forked from itsabot/itsabot
/
boot.go
104 lines (95 loc) · 2.33 KB
/
boot.go
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package core
import (
"errors"
"fmt"
"os"
"os/exec"
"strconv"
"github.com/itsabot/abot/shared/log"
"github.com/itsabot/abot/shared/plugin"
"github.com/jmoiron/sqlx"
"github.com/labstack/echo"
)
var db *sqlx.DB
var ner Classifier
var offensive map[string]struct{}
func DB() *sqlx.DB {
return db
}
func NER() Classifier {
return ner
}
func Offensive() map[string]struct{} {
return offensive
}
// NewServer connects to the database and boots all plugins before returning a
// server connection, database connection, and map of offensive words.
func NewServer() (*echo.Echo, error) {
if len(os.Getenv("ABOT_SECRET")) < 32 && os.Getenv("ABOT_ENV") == "production" {
return nil, errors.New("must set ABOT_SECRET env var in production to >= 32 characters")
}
var err error
db, err = plugin.ConnectDB()
if err != nil {
return nil, fmt.Errorf("could not connect to database: %s", err.Error())
}
if err = checkRequiredEnvVars(); err != nil {
return nil, err
}
if os.Getenv("ABOT_ENV") != "test" {
if err = CompileAssets(); err != nil {
return nil, err
}
}
addr, err := BootRPCServer()
if err != nil {
return nil, err
}
go func() {
if err = BootDependencies(addr); err != nil {
log.Debug("could not boot dependency", err)
}
}()
if os.Getenv("ABOT_ENV") != "test" {
ner, err = BuildClassifier()
if err != nil {
log.Debug("could not build classifier", err)
}
offensive, err = BuildOffensiveMap()
if err != nil {
log.Debug("could not build offensive map", err)
}
}
e := echo.New()
return e, nil
}
// CompileAssets compresses and merges assets from Abot core and all plugins on
// boot. In development, this step is repeated on each server HTTP request prior
// to serving any assets.
func CompileAssets() error {
outC, err := exec.
Command("/bin/sh", "-c", "cmd/compileassets.sh").
CombinedOutput()
if err != nil {
log.Debug(string(outC))
return err
}
return nil
}
func checkRequiredEnvVars() error {
port := os.Getenv("PORT")
_, err := strconv.Atoi(port)
if err != nil {
return errors.New("PORT is not set to an integer")
}
base := os.Getenv("ABOT_URL")
l := len(base)
if l == 0 {
return errors.New("ABOT_URL not set")
}
if l < 4 || base[0:4] != "http" {
return errors.New("ABOT_URL invalid. Must include http/https")
}
// TODO Check for ABOT_DATABASE_URL if ABOT_ENV==production
return nil
}