moved DB into seperate module

4 files changed, 146 insertions, 107 deletions

diff --git a/src/helsinki.at/rhimport/conf.go b/src/helsinki.at/rhimport/conf.go
index 8e373c0..7288a89 100644
--- a/src/helsinki.at/rhimport/conf.go
+++ b/src/helsinki.at/rhimport/conf.go
@@ -25,37 +25,17 @@
 package rhimport
 
 import (
-	"database/sql"
-	"fmt"
-	_ "github.com/go-sql-driver/mysql"
 	"github.com/vaughan0/go-ini"
 )
 
-type getPasswordResult struct {
-	password string
-	err      error
-}
-
-type getPasswordRequest struct {
-	username string
-	cached   bool
-	response chan getPasswordResult
-}
-
 type Config struct {
-	configfile        string
-	RDXportEndpoint   string
-	TempDir           string
-	db_host           string
-	db_user           string
-	db_passwd         string
-	db_db             string
-	dbh               *sql.DB
-	password_cache    map[string]string
-	getPasswordChan   chan getPasswordRequest
-	dbGetPasswordStmt *sql.Stmt
-	quit              chan bool
-	done              chan bool
+	configfile      string
+	RDXportEndpoint string
+	TempDir         string
+	db_host         string
+	db_user         string
+	db_passwd       string
+	db_db           string
 }
 
 func get_ini_value(file ini.File, section string, key string, dflt string) string {
@@ -79,87 +59,13 @@ func (self *Config) read_config_file() error {
 	return nil
 }
 
-func (self *Config) init_database() (err error) {
-	dsn := fmt.Sprintf("%s:%s@tcp(%s:3306)/%s", self.db_user, self.db_passwd, self.db_host, self.db_db)
-	if self.dbh, err = sql.Open("mysql", dsn); err != nil {
-		return
-	}
-	if self.dbGetPasswordStmt, err = self.dbh.Prepare("select PASSWORD from USERS where LOGIN_NAME = ?"); err != nil {
-		return
-	}
-
-	return
-}
-
-func (self *Config) getPassword(username string, cached bool) (pwd string, err error) {
-
-	if cached {
-		pwd = self.password_cache[username]
-	}
-
-	if pwd == "" {
-		err = self.dbGetPasswordStmt.QueryRow(username).Scan(&pwd)
-		if err != nil {
-			if err == sql.ErrNoRows {
-				err = fmt.Errorf("user '%s' not known by rivendell", username)
-			}
-			return
-		}
-		self.password_cache[username] = pwd
-	}
-
-	return
-}
-
-func (self *Config) dispatchRequests() {
-	defer func() { self.done <- true }()
-	for {
-		select {
-		case <-self.quit:
-			return
-		case req := <-self.getPasswordChan:
-			if req.cached {
-				rhdl.Println("Config: got getPassword request for", req.username, "(cached)")
-			} else {
-				rhdl.Println("Config: got getPassword request for", req.username, "(not cached)")
-			}
-			pwd, err := self.getPassword(req.username, req.cached)
-			req.response <- getPasswordResult{pwd, err}
-		}
-	}
-}
-
-func (self *Config) Cleanup() {
-	self.quit <- true
-	<-self.done
-	close(self.quit)
-	close(self.done)
-	close(self.getPasswordChan)
-	if self.dbh != nil {
-		self.dbh.Close()
-	}
-	if self.dbGetPasswordStmt != nil {
-		self.dbGetPasswordStmt.Close()
-	}
-}
-
 func NewConfig(configfile, rdxport_endpoint, temp_dir *string) (conf *Config, err error) {
 	conf = new(Config)
 	conf.configfile = *configfile
 	if err = conf.read_config_file(); err != nil {
 		return
 	}
-	conf.quit = make(chan bool)
-	conf.done = make(chan bool)
 	conf.RDXportEndpoint = *rdxport_endpoint
 	conf.TempDir = *temp_dir
-	conf.password_cache = make(map[string]string)
-	conf.getPasswordChan = make(chan getPasswordRequest)
-
-	if err = conf.init_database(); err != nil {
-		return
-	}
-
-	go conf.dispatchRequests()
 	return
 }
diff --git a/src/helsinki.at/rhimport/fetcher.go b/src/helsinki.at/rhimport/fetcher.go
index ead9f5f..1a5801b 100644
--- a/src/helsinki.at/rhimport/fetcher.go
+++ b/src/helsinki.at/rhimport/fetcher.go
@@ -26,9 +26,9 @@ package rhimport
 
 func FetchFile(ctx *ImportContext) (err error) {
 
-	// TODO: fetch file from ctx.SourceUri and put it into ctx.Conf.TempDir
+	// TODO: fetch file from ctx.SourceUri and put it into ctx.Config.TempDir
 
-	ctx.SourceFile = ctx.Conf.TempDir + "/source-file.ogg"
+	ctx.SourceFile = ctx.Config.TempDir + "/source-file.ogg"
 	ctx.DeleteSourceFile = true
 	return
 }
diff --git a/src/helsinki.at/rhimport/importer.go b/src/helsinki.at/rhimport/importer.go
index 95e3e73..5eea054 100644
--- a/src/helsinki.at/rhimport/importer.go
+++ b/src/helsinki.at/rhimport/importer.go
@@ -34,7 +34,8 @@ import (
 )
 
 type ImportContext struct {
-	Conf               *Config
+	*Config
+	*RDDB
 	UserName           string
 	Password           string
 	Trusted            bool
@@ -50,9 +51,10 @@ type ImportContext struct {
 	DeleteSourceFile   bool
 }
 
-func NewImportContext(conf *Config, user string, group string) *ImportContext {
+func NewImportContext(conf *Config, rddb *RDDB, user string, group string) *ImportContext {
 	ctx := new(ImportContext)
-	ctx.Conf = conf
+	ctx.Config = conf
+	ctx.RDDB = rddb
 	ctx.UserName = user
 	ctx.Password = ""
 	ctx.Trusted = false
@@ -74,7 +76,7 @@ func (ctx *ImportContext) getPassword(cached bool) (err error) {
 	req.username = ctx.UserName
 	req.cached = cached
 	req.response = make(chan getPasswordResult)
-	ctx.Conf.getPasswordChan <- req
+	ctx.RDDB.getPasswordChan <- req
 
 	res := <-req.response
 	if res.err != nil {
diff --git a/src/helsinki.at/rhimport/rddb.go b/src/helsinki.at/rhimport/rddb.go
new file mode 100644
index 0000000..2a87388
--- /dev/null
+++ b/src/helsinki.at/rhimport/rddb.go
@@ -0,0 +1,131 @@
+//
+//  rhimportd
+//
+//  The Radio Helsinki Rivendell Import Daemon
+//
+//
+//  Copyright (C) 2015 Christian Pointner <equinox@helsinki.at>
+//
+//  This file is part of rhimportd.
+//
+//  rhimportd is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  any later version.
+//
+//  rhimportd is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with rhimportd. If not, see <http://www.gnu.org/licenses/>.
+//
+
+package rhimport
+
+import (
+	"database/sql"
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+)
+
+type getPasswordResult struct {
+	password string
+	err      error
+}
+
+type getPasswordRequest struct {
+	username string
+	cached   bool
+	response chan getPasswordResult
+}
+
+type RDDB struct {
+	dbh               *sql.DB
+	password_cache    map[string]string
+	getPasswordChan   chan getPasswordRequest
+	dbGetPasswordStmt *sql.Stmt
+	quit              chan bool
+	done              chan bool
+}
+
+func (self *RDDB) init(conf *Config) (err error) {
+	dsn := fmt.Sprintf("%s:%s@tcp(%s:3306)/%s", conf.db_user, conf.db_passwd, conf.db_host, conf.db_db)
+	if self.dbh, err = sql.Open("mysql", dsn); err != nil {
+		return
+	}
+	if self.dbGetPasswordStmt, err = self.dbh.Prepare("select PASSWORD from USERS where LOGIN_NAME = ?"); err != nil {
+		return
+	}
+
+	return
+}
+
+func (self *RDDB) getPassword(username string, cached bool) (pwd string, err error) {
+
+	if cached {
+		pwd = self.password_cache[username]
+	}
+
+	if pwd == "" {
+		err = self.dbGetPasswordStmt.QueryRow(username).Scan(&pwd)
+		if err != nil {
+			if err == sql.ErrNoRows {
+				err = fmt.Errorf("user '%s' not known by rivendell", username)
+			}
+			return
+		}
+		self.password_cache[username] = pwd
+	}
+
+	return
+}
+
+func (self *RDDB) dispatchRequests() {
+	defer func() { self.done <- true }()
+	for {
+		select {
+		case <-self.quit:
+			return
+		case req := <-self.getPasswordChan:
+			if req.cached {
+				rhdl.Println("RDDB: got getPassword request for", req.username, "(cached)")
+			} else {
+				rhdl.Println("RDDB: got getPassword request for", req.username, "(not cached)")
+			}
+			pwd, err := self.getPassword(req.username, req.cached)
+			req.response <- getPasswordResult{pwd, err}
+		}
+	}
+}
+
+func (self *RDDB) Cleanup() {
+	self.quit <- true
+	<-self.done
+	close(self.quit)
+	close(self.done)
+	close(self.getPasswordChan)
+	if self.dbh != nil {
+		self.dbh.Close()
+	}
+	if self.dbGetPasswordStmt != nil {
+		self.dbGetPasswordStmt.Close()
+	}
+}
+
+func NewRDDB(conf *Config) (db *RDDB, err error) {
+	db = new(RDDB)
+
+	db.quit = make(chan bool)
+	db.done = make(chan bool)
+	db.password_cache = make(map[string]string)
+	db.getPasswordChan = make(chan getPasswordRequest)
+
+	if err = db.init(conf); err != nil {
+		return
+	}
+
+	go db.dispatchRequests()
+	return
+}