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server.go
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server.go
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/*
Copyright 2013 The Camlistore Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// This file adds the "server" subcommand to devcam, to run camlistored.
package main
import (
"bytes"
"errors"
"flag"
"fmt"
"io/ioutil"
"log"
"net/http"
"os"
"os/exec"
"path/filepath"
"strconv"
"strings"
"time"
"camlistore.org/pkg/client"
"camlistore.org/pkg/cmdmain"
"camlistore.org/pkg/importer"
_ "camlistore.org/pkg/importer/allimporters"
"camlistore.org/pkg/netutil"
"camlistore.org/pkg/osutil"
)
type serverCmd struct {
// start of flag vars
all bool
hostname string
port string
tls bool
wipe bool
things bool
debug bool
mongo bool
mysql bool
postgres bool
sqlite bool
kvfile bool
memory bool
slow bool
throttle int
latency int
fullIndexSync bool
fullClosure bool
mini bool
publish bool // whether to build and start the publisher app(s)
hello bool // whether to build and start the hello demo app
openBrowser bool
flickrAPIKey string
foursquareAPIKey string
gphotosAPIKey string
picasaAPIKey string
plaidAPIKey string
twitterAPIKey string
extraArgs string // passed to camlistored
// end of flag vars
listen string // address + port to listen on
root string // the temp dir where blobs are stored
env *Env
}
func init() {
cmdmain.RegisterCommand("server", func(flags *flag.FlagSet) cmdmain.CommandRunner {
cmd := &serverCmd{
env: NewCopyEnv(),
}
flags.BoolVar(&cmd.all, "all", false, "Listen on all interfaces.")
flags.StringVar(&cmd.hostname, "hostname", "", "Hostname to advertise, defaults to the hostname reported by the kernel.")
flags.StringVar(&cmd.port, "port", "3179", "Port to listen on.")
flags.BoolVar(&cmd.tls, "tls", false, "Use TLS.")
flags.BoolVar(&cmd.wipe, "wipe", false, "Wipe the blobs on disk and the indexer.")
flags.BoolVar(&cmd.things, "makethings", false, "Create various test data on startup (twitter imports for now). Requires wipe. Conflicts with mini.")
flags.BoolVar(&cmd.debug, "debug", false, "Enable http debugging.")
flags.BoolVar(&cmd.publish, "publish", true, "Enable publisher app(s)")
flags.BoolVar(&cmd.hello, "hello", false, "Enable hello (demo) app")
flags.BoolVar(&cmd.mini, "mini", false, "Enable minimal mode, where all optional features are disabled. (Currently just publishing)")
flags.BoolVar(&cmd.mongo, "mongo", false, "Use mongodb as the index storage. Excludes -mysql, -postgres, -sqlite, -memory, -kvfile.")
flags.BoolVar(&cmd.mysql, "mysql", false, "Use mysql as the index storage. Excludes -mongo, -postgres, -sqlite, -memory, -kvfile.")
flags.BoolVar(&cmd.postgres, "postgres", false, "Use postgres as the index storage. Excludes -mongo, -mysql, -sqlite, -memory, -kvfile.")
flags.BoolVar(&cmd.sqlite, "sqlite", false, "Use sqlite as the index storage. Excludes -mongo, -mysql, -postgres, -memory, -kvfile.")
flags.BoolVar(&cmd.kvfile, "kvfile", false, "Use cznic/kv as the index storage. Excludes -mongo, -mysql, -postgres, -memory, -sqlite.")
flags.BoolVar(&cmd.memory, "memory", false, "Use a memory-only index storage. Excludes -mongo, -mysql, -postgres, -sqlite, -kvfile.")
flags.BoolVar(&cmd.slow, "slow", false, "Add artificial latency.")
flags.IntVar(&cmd.throttle, "throttle", 150, "If -slow, this is the rate in kBps, to which we should throttle.")
flags.IntVar(&cmd.latency, "latency", 90, "If -slow, this is the added latency, in ms.")
flags.BoolVar(&cmd.fullIndexSync, "fullindexsync", false, "Perform full sync to indexer on startup.")
flags.BoolVar(&cmd.fullClosure, "fullclosure", false, "Use the ondisk closure library.")
flags.BoolVar(&cmd.openBrowser, "openbrowser", false, "Open the start page on startup.")
flags.StringVar(&cmd.flickrAPIKey, "flickrapikey", "", "The key and secret to use with the Flickr importer. Formatted as '<key>:<secret>'.")
flags.StringVar(&cmd.foursquareAPIKey, "foursquareapikey", "", "The key and secret to use with the Foursquare importer. Formatted as '<clientID>:<clientSecret>'.")
flags.StringVar(&cmd.gphotosAPIKey, "gphotoskey", "", "The username and password to use with the Google Photos importer. Formatted as '<clientID>:<clientSecret>'.")
flags.StringVar(&cmd.picasaAPIKey, "picasakey", "", "The username and password to use with the Picasa importer. Formatted as '<username>:<password>'.")
flags.StringVar(&cmd.plaidAPIKey, "plaidkey", "", "The client_id and secret to use with the Plaid importer. Formatted as '<client_id>:<secret>'.")
flags.StringVar(&cmd.twitterAPIKey, "twitterapikey", "", "The key and secret to use with the Twitter importer. Formatted as '<APIkey>:<APIsecret>'.")
flags.StringVar(&cmd.root, "root", "", "A directory to store data in. Defaults to a location in the OS temp directory.")
flags.StringVar(&cmd.extraArgs, "extraargs", "",
"List of comma separated options that will be passed to camlistored")
return cmd
})
}
func (c *serverCmd) Usage() {
fmt.Fprintf(cmdmain.Stderr, "Usage: devcam [globalopts] server [serveropts]\n")
}
func (c *serverCmd) Examples() []string {
return []string{
"-wipe -mysql -fullclosure",
}
}
func (c *serverCmd) Describe() string {
return "run the stand-alone camlistored in dev mode."
}
func (c *serverCmd) checkFlags(args []string) error {
if len(args) != 0 {
c.Usage()
}
if c.mini {
if c.things {
return cmdmain.UsageError("--mini and --makethings are mutually exclusive.")
}
c.publish = false
c.hello = false
}
if c.things && !c.wipe {
return cmdmain.UsageError("--makethings requires --wipe.")
}
nindex := 0
for _, v := range []bool{c.mongo, c.mysql, c.postgres, c.sqlite, c.memory, c.kvfile} {
if v {
nindex++
}
}
if nindex > 1 {
return fmt.Errorf("Only one index option allowed")
}
if _, err := strconv.ParseInt(c.port, 0, 0); err != nil {
return fmt.Errorf("Invalid -port value: %q", c.port)
}
return nil
}
func (c *serverCmd) setRoot() error {
if c.root == "" {
if root, err := rootInTmpDir(); err != nil {
return err
} else {
c.root = filepath.Join(root, "port"+c.port)
}
}
log.Printf("Temp dir root is %v", c.root)
if c.wipe {
log.Printf("Wiping %v", c.root)
if err := os.RemoveAll(c.root); err != nil {
return fmt.Errorf("Could not wipe %v: %v", c.root, err)
}
}
return nil
}
func (c *serverCmd) makeSuffixdir(fullpath string) {
if err := os.MkdirAll(fullpath, 0755); err != nil {
log.Fatalf("Could not create %v: %v", fullpath, err)
}
}
func (c *serverCmd) setEnvVars() error {
c.env.SetCamdevVars(false)
setenv := func(k, v string) {
c.env.Set(k, v)
}
if c.slow {
setenv("DEV_THROTTLE_KBPS", fmt.Sprintf("%d", c.throttle))
setenv("DEV_THROTTLE_LATENCY_MS", fmt.Sprintf("%d", c.latency))
}
if c.debug {
setenv("CAMLI_HTTP_DEBUG", "1")
}
user := osutil.Username()
if user == "" {
return errors.New("Could not get username from environment")
}
setenv("CAMLI_FULL_INDEX_SYNC_ON_START", "false")
if c.fullIndexSync {
setenv("CAMLI_FULL_INDEX_SYNC_ON_START", "true")
}
setenv("CAMLI_DBNAME", "devcamli"+user)
setenv("CAMLI_MYSQL_ENABLED", "false")
setenv("CAMLI_MONGO_ENABLED", "false")
setenv("CAMLI_POSTGRES_ENABLED", "false")
setenv("CAMLI_SQLITE_ENABLED", "false")
setenv("CAMLI_KVINDEX_ENABLED", "false")
setenv("CAMLI_MEMINDEX_ENABLED", "false")
setenv("CAMLI_LEVELDB_ENABLED", "false")
setenv("CAMLI_PUBLISH_ENABLED", strconv.FormatBool(c.publish))
setenv("CAMLI_HELLO_ENABLED", strconv.FormatBool(c.hello))
switch {
case c.memory:
setenv("CAMLI_MEMINDEX_ENABLED", "true")
setenv("CAMLI_INDEXER_PATH", "/index-memory/")
case c.mongo:
setenv("CAMLI_MONGO_ENABLED", "true")
setenv("CAMLI_INDEXER_PATH", "/index-mongo/")
case c.postgres:
setenv("CAMLI_POSTGRES_ENABLED", "true")
setenv("CAMLI_INDEXER_PATH", "/index-postgres/")
case c.mysql:
setenv("CAMLI_MYSQL_ENABLED", "true")
setenv("CAMLI_INDEXER_PATH", "/index-mysql/")
case c.kvfile:
setenv("CAMLI_KVINDEX_ENABLED", "true")
setenv("CAMLI_INDEXER_PATH", "/index-kv/")
if c.root == "" {
panic("no root set")
}
setenv("CAMLI_DBNAME", filepath.Join(c.root, "kvindex.db"))
case c.sqlite:
setenv("CAMLI_SQLITE_ENABLED", "true")
setenv("CAMLI_INDEXER_PATH", "/index-sqlite/")
if c.root == "" {
panic("no root set")
}
setenv("CAMLI_DBNAME", filepath.Join(c.root, "sqliteindex.db"))
default:
setenv("CAMLI_LEVELDB_ENABLED", "true")
setenv("CAMLI_INDEXER_PATH", "/index-leveldb/")
if c.root == "" {
panic("no root set")
}
setenv("CAMLI_DBNAME", filepath.Join(c.root, "leveldbindex.db"))
}
base := "http://localhost:" + c.port
c.listen = "127.0.0.1:" + c.port
if c.all {
c.listen = "0.0.0.0:" + c.port
if c.hostname == "" {
hostname, err := os.Hostname()
if err != nil {
return fmt.Errorf("Could not get system hostname: %v", err)
}
base = "http://" + hostname + ":" + c.port
} else {
base = "http://" + c.hostname + ":" + c.port
}
}
setenv("CAMLI_TLS", "false")
if c.tls {
base = strings.Replace(base, "http://", "https://", 1)
setenv("CAMLI_TLS", "true")
}
setenv("CAMLI_BASEURL", base)
setenv("CAMLI_DEV_CAMLI_ROOT", camliSrcRoot)
setenv("CAMLI_AUTH", "devauth:pass3179")
fullSuffix := func(name string) string {
return filepath.Join(c.root, name)
}
suffixes := map[string]string{
"CAMLI_ROOT": fullSuffix("bs"),
"CAMLI_ROOT_SHARD1": fullSuffix("s1"),
"CAMLI_ROOT_SHARD2": fullSuffix("s2"),
"CAMLI_ROOT_REPLICA1": fullSuffix("r1"),
"CAMLI_ROOT_REPLICA2": fullSuffix("r2"),
"CAMLI_ROOT_REPLICA3": fullSuffix("r3"),
"CAMLI_ROOT_CACHE": fullSuffix("cache"),
"CAMLI_ROOT_ENCMETA": fullSuffix("encmeta"),
"CAMLI_ROOT_ENCBLOB": fullSuffix("encblob"),
}
for k, v := range suffixes {
c.makeSuffixdir(v)
setenv(k, v)
}
c.makeSuffixdir(filepath.Join(fullSuffix("bs"), "packed"))
setenv("CAMLI_PORT", c.port)
if c.flickrAPIKey != "" {
setenv("CAMLI_FLICKR_ENABLED", "true")
setenv("CAMLI_FLICKR_API_KEY", c.flickrAPIKey)
}
if c.foursquareAPIKey != "" {
setenv("CAMLI_FOURSQUARE_ENABLED", "true")
setenv("CAMLI_FOURSQUARE_API_KEY", c.foursquareAPIKey)
}
if c.picasaAPIKey != "" {
setenv("CAMLI_PICASA_ENABLED", "true")
setenv("CAMLI_PICASA_API_KEY", c.picasaAPIKey)
}
if c.plaidAPIKey != "" {
setenv("CAMLI_PLAID_ENABLED", "true")
setenv("CAMLI_PLAID_API_KEY", c.plaidAPIKey)
}
if c.twitterAPIKey != "" {
setenv("CAMLI_TWITTER_ENABLED", "true")
setenv("CAMLI_TWITTER_API_KEY", c.twitterAPIKey)
}
setenv("CAMLI_CONFIG_DIR", "config")
setenv("CAMLI_CACHE_DIR", filepath.Join(c.root, "cache"))
setenv("CAMLI_APP_BINDIR", "bin")
return nil
}
func (c *serverCmd) setupIndexer() error {
args := []string{"dbinit"}
switch {
case c.postgres:
args = append(args,
"-dbtype=postgres",
"-user=postgres",
"-password=postgres",
"-host=localhost",
"-dbname="+c.env.m["CAMLI_DBNAME"])
case c.mysql:
args = append(args,
"-user=root",
"-password=root",
"-host=localhost",
"-dbname="+c.env.m["CAMLI_DBNAME"])
case c.sqlite:
args = append(args,
"-dbtype=sqlite",
"-dbname="+c.env.m["CAMLI_DBNAME"])
case c.mongo:
args = append(args,
"-dbtype=mongo",
"-host=localhost",
"-dbname="+c.env.m["CAMLI_DBNAME"])
default:
return nil
}
if c.wipe {
args = append(args, "-wipe")
} else {
args = append(args, "-ignoreexists")
}
binPath := filepath.Join("bin", "camtool")
cmd := exec.Command(binPath, args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return fmt.Errorf("Could not run camtool dbinit: %v", err)
}
return nil
}
func (c *serverCmd) syncTemplateBlobs() error {
if c.wipe {
templateDir := "dev-server-template"
if _, err := os.Stat(templateDir); err != nil {
if os.IsNotExist(err) {
return nil
}
return err
}
blobsDir := filepath.Join(c.root, "sha1")
if err := cpDir(templateDir, blobsDir, nil); err != nil {
return fmt.Errorf("Could not cp template blobs: %v", err)
}
}
return nil
}
func (c *serverCmd) setFullClosure() error {
if c.fullClosure {
oldsvn := filepath.Join(c.root, filepath.FromSlash("tmp/closure-lib/.svn"))
if err := os.RemoveAll(oldsvn); err != nil {
return fmt.Errorf("Could not remove svn checkout of closure-lib %v: %v",
oldsvn, err)
}
log.Println("Updating closure library...")
args := []string{"run", "vendor/embed/closure/updatelibrary.go", "-verbose"}
cmd := exec.Command("go", args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return fmt.Errorf("Could not run updatelibrary.go: %v", err)
}
c.env.Set("CAMLI_DEV_CLOSURE_DIR", "vendor/embed/closure/lib/closure")
}
return nil
}
func (c *serverCmd) makeThings() error {
const importerPrefix = "/importer/"
// check that "/importer/" prefix is in config, just in case it ever changes.
configFile := filepath.Join(camliSrcRoot, "config", "dev-server-config.json")
config, err := ioutil.ReadFile(configFile)
if err != nil {
return fmt.Errorf("could not read config file %v: %v", configFile, err)
}
if !bytes.Contains(config, []byte(importerPrefix)) {
return fmt.Errorf("%s prefix not found in dev config. Did it change?", importerPrefix)
}
if err := netutil.AwaitReachable("localhost:"+c.port, time.Minute); err != nil {
return err
}
osutil.AddSecretRingFlag()
setCamdevVars()
baseURL := c.env.m["CAMLI_BASEURL"]
if baseURL == "" {
return errors.New("CAMLI_BASEURL is not set")
}
cl := client.New(baseURL)
signer, err := cl.Signer()
if err != nil {
return err
}
ClientId := make(map[string]string)
ClientSecret := make(map[string]string)
for name := range importer.All() {
ClientId[name] = "fakeStaticClientId"
ClientSecret[name] = "fakeStaticClientSecret"
}
hc := importer.HostConfig{
BaseURL: baseURL,
Prefix: importerPrefix,
Target: cl,
BlobSource: cl,
Signer: signer,
Search: cl,
ClientId: ClientId,
ClientSecret: ClientSecret,
}
for name, imp := range importer.All() {
mk, ok := imp.(importer.TestDataMaker)
if !ok {
continue
}
tr := mk.MakeTestData()
hc.HTTPClient = &http.Client{Transport: tr}
host, err := importer.NewHost(hc)
if err != nil {
return fmt.Errorf("could not obtain Host: %v", err)
}
rc, err := importer.CreateAccount(host, name)
if err != nil {
return err
}
if err := mk.SetTestAccount(rc.AccountNode()); err != nil {
return fmt.Errorf("could not set fake account node for importer %v: %v", name, err)
}
if err := imp.Run(rc); err != nil {
return err
}
}
return nil
}
func (c *serverCmd) RunCommand(args []string) error {
err := c.checkFlags(args)
if err != nil {
return cmdmain.UsageError(fmt.Sprint(err))
}
if !*noBuild {
withSqlite = c.sqlite
targets := []string{
filepath.Join("server", "camlistored"),
filepath.Join("cmd", "camtool"),
}
if c.hello {
targets = append(targets, filepath.Join("app", "hello"))
}
if c.publish {
targets = append(targets, filepath.Join("app", "publisher"))
}
targets = append(targets, filepath.Join("app", "scanningcabinet"))
for _, name := range targets {
err := build(name)
if err != nil {
return fmt.Errorf("Could not build %v: %v", name, err)
}
}
}
if err := c.setRoot(); err != nil {
return fmt.Errorf("Could not setup the camli root: %v", err)
}
if err := c.setEnvVars(); err != nil {
return fmt.Errorf("Could not setup the env vars: %v", err)
}
// wipeCacheDir needs to be called after setEnvVars, because that is where
// CAMLI_CACHE_DIR is defined.
if *wipeCache {
c.env.wipeCacheDir()
}
if err := c.setupIndexer(); err != nil {
return fmt.Errorf("Could not setup the indexer: %v", err)
}
if err := c.syncTemplateBlobs(); err != nil {
return fmt.Errorf("Could not copy the template blobs: %v", err)
}
if err := c.setFullClosure(); err != nil {
return fmt.Errorf("Could not setup the closure lib: %v", err)
}
log.Printf("Starting dev server on %v/ui/ with password \"pass3179\"\n",
c.env.m["CAMLI_BASEURL"])
camliBin := filepath.Join("bin", "camlistored")
cmdArgs := []string{
"-configfile=" + filepath.Join(camliSrcRoot, "config", "dev-server-config.json"),
"-listen=" + c.listen,
"-openbrowser=" + strconv.FormatBool(c.openBrowser),
}
if c.extraArgs != "" {
cmdArgs = append(cmdArgs, strings.Split(c.extraArgs, ",")...)
}
if c.things {
// force camlistored to be run as a child process instead of with
// syscall.Exec, so c.makeThings() is able to run.
sysExec = nil
go func() {
if err := c.makeThings(); err != nil {
log.Fatalf("%v", err)
}
}()
}
return runExec(camliBin, cmdArgs, c.env)
}