make it easier to define weak password definitions

add tests for weak passwords
make it easier to check values of errors returned from weak password
loosen weak password requirements for long passwords
reduce boilerplate when loading json files
only check for email in passwords when it is longer than two chars
more canonemail tests

common/parser.go

@@ -4,10 +4,8 @@ import (
 	"bytes"
 	//"fmt"
 	//"log"
-	"encoding/json"
+
-	"io/ioutil"
 	"net/url"
-	"os"
 	"path/filepath"
 	"regexp"
 	"strconv"
@@ -45,6 +43,7 @@ var attachOpen = []byte("<a class='attach'href=\"")
 var attachClose = []byte("\"download>Attachment</a>")
 var sidParam = []byte("?sid=")
 var stypeParam = []byte("&amp;stype=")
+
 /*var textShortOpen = []byte("<a class='attach'href=\"")
 var textShortOpen2 = []byte("\">View</a> / <a class='attach'href=\"")
 var textShortClose = []byte("\"download>Download</a>")*/
@@ -71,13 +70,8 @@ type emojiHolder struct {
 }
 
 func InitEmoji() error {
-	data, err := ioutil.ReadFile("./config/emoji_default.json")
-	if err != nil {
-		return err
-	}
-
 	var emoji emojiHolder
-	err = json.Unmarshal(data, &emoji)
+	err := unmarshalJsonFile("./config/emoji_default.json", &emoji)
 	if err != nil {
 		return err
 	}
@@ -89,15 +83,8 @@ func InitEmoji() error {
 		}
 	}
 
-	data, err = ioutil.ReadFile("./config/emoji.json")
-	if err == os.ErrPermission || err == os.ErrClosed {
-		return err
-	} else if err != nil {
-		return nil
-	}
-
 	emoji = emojiHolder{}
-	err = json.Unmarshal(data, &emoji)
+	err = unmarshalJsonFileIgnore404("./config/emoji.json", &emoji)
 	if err != nil {
 		return err
 	}
@@ -484,14 +471,14 @@ func (ps *ParseSettings) CopyPtr() *ParseSettings {
 }
 
 func ParseMessage(msg string, sectionID int, sectionType string, settings *ParseSettings, user *User) string {
-	msg, _ = ParseMessage2(msg,sectionID,sectionType,settings,user)
+	msg, _ = ParseMessage2(msg, sectionID, sectionType, settings, user)
 	return msg
 }
 
 // TODO: Write a test for this
 // TODO: We need a lot more hooks here. E.g. To add custom media types and handlers.
 // TODO: Use templates to reduce the amount of boilerplate?
-func ParseMessage2(msg string, sectionID int, sectionType string, settings *ParseSettings, user *User) (string,bool) {
+func ParseMessage2(msg string, sectionID int, sectionType string, settings *ParseSettings, user *User) (string, bool) {
 	if settings == nil {
 		settings = DefaultParseSettings
 	}
@@ -1095,7 +1082,7 @@ func parseMediaString(data string, settings *ParseSettings) (media MediaEmbed, o
 			vid, err := strconv.ParseInt(strings.TrimPrefix(path, "/watch/sm"), 10, 64)
 			if err == nil {
 				media.Type = ERawExternal
-				media.Body = "<iframe class='postIframe'src='https://embed.nicovideo.jp/watch/sm"+strconv.FormatInt(vid, 10)+"?jsapi=1&amp;playerId=1'frameborder=0 allowfullscreen></iframe>"
+				media.Body = "<iframe class='postIframe'src='https://embed.nicovideo.jp/watch/sm" + strconv.FormatInt(vid, 10) + "?jsapi=1&amp;playerId=1'frameborder=0 allowfullscreen></iframe>"
 				return media, true
 			}
 		}

common/utils.go

@@ -10,9 +10,11 @@ import (
 	"crypto/rand"
 	"encoding/base32"
 	"encoding/base64"
+	"encoding/json"
 	"errors"
 	"fmt"
 	"html"
+	"io/ioutil"
 	"math"
 	"os"
 	"strconv"
@@ -161,11 +163,12 @@ func RelativeTimeBytes(t time.Time, lang int) []byte {
 }
 */
 
-var pMs = 1000;
+var pMs = 1000
-var pSec = pMs * 1000;
+var pSec = pMs * 1000
-var pMin = pSec * 60;
+var pMin = pSec * 60
-var pHour = pMin * 60;
+var pHour = pMin * 60
-var pDay = pHour * 24;
+var pDay = pHour * 24
+
 func ConvertPerfUnit(quan float64) (out float64, unit string) {
 	f := func() (float64, string) {
 		switch {
@@ -186,7 +189,6 @@ func ConvertPerfUnit(quan float64) (out float64, unit string) {
 	return math.Ceil(out), unit
 }
 
-
 // TODO: Write a test for this
 func ConvertByteUnit(bytes float64) (float64, string) {
 	switch {
@@ -341,7 +343,7 @@ func NameToSlug(name string) (slug string) {
 func HasSuspiciousEmail(email string) bool {
 	lowEmail := strings.ToLower(email)
 	// TODO: Use a more flexible blacklist, perhaps with a similar mechanism to the HTML tag registration system in PreparseMessage()
-	if !strings.Contains(lowEmail,"@") || strings.Contains(lowEmail, "casino") || strings.Contains(lowEmail, "viagra") || strings.Contains(lowEmail, "pharma") || strings.Contains(lowEmail, "pill") {
+	if !strings.Contains(lowEmail, "@") || strings.Contains(lowEmail, "casino") || strings.Contains(lowEmail, "viagra") || strings.Contains(lowEmail, "pharma") || strings.Contains(lowEmail, "pill") {
 		return true
 	}
 
@@ -361,24 +363,63 @@ func HasSuspiciousEmail(email string) bool {
 	return dotCount > 7 || shortBits > 2
 }
 
-var weakPassStrings = []string{"test", "123", "6969", "password", "qwerty", "fuck", "love"}
+func unmarshalJsonFile(name string, in interface{}) error {
+	data, err := ioutil.ReadFile(name)
+	if err != nil {
+		return err
+	}
+	return json.Unmarshal(data, in)
+}
 
-// TODO: Write a test for this
+func unmarshalJsonFileIgnore404(name string, in interface{}) error {
-func WeakPassword(password, username, email string) error {
+	data, err := ioutil.ReadFile(name)
-	lowPassword := strings.ToLower(password)
+	if err == os.ErrPermission || err == os.ErrClosed {
-	switch {
+		return err
-	case password == "":
+	} else if err != nil {
-		return errors.New("You didn't put in a password.")
+		return nil
-	case len(password) < 8:
+	}
-		return errors.New("Your password needs to be at-least eight characters long")
+	return json.Unmarshal(data, in)
-	case strings.Contains(lowPassword, strings.ToLower(username)) && len(username) > 3:
+}
-		return errors.New("You can't use your username in your password.")
+
-	case email != "" && strings.Contains(lowPassword, strings.ToLower(email)):
+type weakpassHolder struct {
-		return errors.New("You can't use your email in your password.")
+	Contains []string `json:"contains"`
+	Literal  []string `json:"literal"`
+}
+
+func InitWeakPasswords() error {
+	var weakpass weakpassHolder
+	err := unmarshalJsonFile("./config/weakpass_default.json", &weakpass)
+	if err != nil {
+		return err
+	}
+
+	wcon := make(map[string]struct{})
+	for _, item := range weakpass.Contains {
+		wcon[item] = struct{}{}
+	}
+	for _, item := range weakpass.Literal {
+		weakPassLit[item] = struct{}{}
+	}
+
+	weakpass = weakpassHolder{}
+	err = unmarshalJsonFileIgnore404("./config/weakpass.json", &weakpass)
+	if err != nil {
+		return err
+	}
+
+	for _, item := range weakpass.Contains {
+		wcon[item] = struct{}{}
+	}
+	for _, item := range weakpass.Literal {
+		weakPassLit[item] = struct{}{}
+	}
+	weakPassStrings = make([]string, len(wcon))
+	var i int
+	for pattern, _ := range wcon {
+		weakPassStrings[i] = pattern
+		i++
 	}
 
-	for _, passBit := range weakPassStrings {
-		if strings.Contains(lowPassword, passBit) {
 	s := "You may not have "
 	for i, passBit := range weakPassStrings {
 		if i > 0 {
@@ -390,7 +431,45 @@ func WeakPassword(password, username, email string) error {
 		}
 		s += "'" + passBit + "'"
 	}
-			return errors.New(s + " in your password")
+	ErrWeakPasswordContains = errors.New(s + " in your password")
+
+	return nil
+}
+
+var weakPassStrings []string
+var weakPassLit = make(map[string]struct{})
+var ErrWeakPasswordNone = errors.New("You didn't put in a password.")
+var ErrWeakPasswordShort = errors.New("Your password needs to be at-least eight characters long")
+var ErrWeakPasswordNameInPass = errors.New("You can't use your name in your password.")
+var ErrWeakPasswordEmailInPass = errors.New("You can't use your email in your password.")
+var ErrWeakPasswordCommon = errors.New("You may not use a password that is in common use")
+var ErrWeakPasswordNoNumbers = errors.New("You don't have any numbers in your password")
+var ErrWeakPasswordNoUpper = errors.New("You don't have any uppercase characters in your password")
+var ErrWeakPasswordNoLower = errors.New("You don't have any lowercase characters in your password")
+var ErrWeakPasswordUniqueChars = errors.New("You don't have enough unique characters in your password")
+var ErrWeakPasswordContains error
+
+// TODO: Write a test for this
+func WeakPassword(password, username, email string) error {
+	lowPassword := strings.ToLower(password)
+	switch {
+	case password == "":
+		return ErrWeakPasswordNone
+	case len(password) < 8:
+		return ErrWeakPasswordShort
+	case len(username) > 3 && strings.Contains(lowPassword, strings.ToLower(username)):
+		return ErrWeakPasswordNameInPass
+	case len(email) > 2 && strings.Contains(lowPassword, strings.ToLower(email)):
+		return ErrWeakPasswordEmailInPass
+	}
+
+	_, ok := weakPassLit[lowPassword]
+	if ok {
+		return ErrWeakPasswordCommon
+	}
+	for _, passBit := range weakPassStrings {
+		if strings.Contains(lowPassword, passBit) {
+			return ErrWeakPasswordContains
 		}
 	}
 
@@ -418,22 +497,22 @@ func WeakPassword(password, username, email string) error {
 		}
 	}
 
-	if numbers == 0 {
-		return errors.New("You don't have any numbers in your password")
-	}
 	if upper == 0 {
-		return errors.New("You don't have any uppercase characters in your password")
+		return ErrWeakPasswordNoUpper
 	}
 	if lower == 0 {
-		return errors.New("You don't have any lowercase characters in your password")
+		return ErrWeakPasswordNoLower
 	}
 	if len(password) < 18 {
+		if numbers == 0 {
+			return ErrWeakPasswordNoNumbers
+		}
 		if (len(password) / 2) > len(charMap) {
-			return errors.New("You don't have enough unique characters in your password")
+			return ErrWeakPasswordUniqueChars
 		}
 	} else if (len(password) / 3) > len(charMap) {
 		// Be a little lenient on the number of unique characters for long passwords
-		return errors.New("You don't have enough unique characters in your password")
+		return ErrWeakPasswordUniqueChars
 	}
 	return nil
 }
@@ -445,7 +524,7 @@ func CanonEmail(email string) string {
 	// Gmail emails are equivalent without the dots
 	espl := strings.Split(email, "@")
 	if len(espl) >= 2 && espl[1] == "gmail.com" {
-		return strings.Replace(espl[0],".","",-1) + "@" + espl[1]
+		return strings.Replace(espl[0], ".", "", -1) + "@" + espl[1]
 	}
 
 	return email

main.go

@@ -159,6 +159,9 @@ func storeInit() (err error) {
 	if err = c.InitEmoji(); err != nil {
 		return errors.WithStack(err)
 	}
+	if err = c.InitWeakPasswords(); err != nil {
+		return errors.WithStack(err)
+	}
 
 	log.Print("Loading the static files.")
 	if err = c.Themes.LoadStaticFiles(); err != nil {

misc_test.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"bytes"
-	"strings"
 	"database/sql"
 	"fmt"
 	"io/ioutil"
@@ -10,12 +9,14 @@ import (
 	"os"
 	"runtime/debug"
 	"strconv"
+	"strings"
 	"testing"
 	"time"
 
 	c "github.com/Azareal/Gosora/common"
 	"github.com/Azareal/Gosora/common/gauth"
 	"github.com/Azareal/Gosora/common/phrases"
+	"github.com/pkg/errors"
 )
 
 func miscinit(t *testing.T) {
@@ -2002,25 +2003,84 @@ func TestWidgets(t *testing.T) {
 func TestUtils(t *testing.T) {
 	email := "test@example.com"
 	cemail := c.CanonEmail(email)
-	expect(t,cemail==email,fmt.Sprintf("%s should be %s", cemail, email))
+	expect(t, cemail == email, fmt.Sprintf("%s should be %s", cemail, email))
 	email = "test.test@example.com"
 	cemail = c.CanonEmail(email)
-	expect(t,cemail==email,fmt.Sprintf("%s should be %s", cemail, email))
+	expect(t, cemail == email, fmt.Sprintf("%s should be %s", cemail, email))
 
 	email = "test.test@gmail.com"
 	eemail := "testtest@gmail.com"
 	cemail = c.CanonEmail(email)
-	expect(t,cemail==eemail,fmt.Sprintf("%s should be %s", cemail, eemail))
+	expect(t, cemail == eemail, fmt.Sprintf("%s should be %s", cemail, eemail))
 
 	email = "TEST.test@gmail.com"
 	eemail = "testtest@gmail.com"
 	cemail = c.CanonEmail(email)
-	expect(t,cemail==eemail,fmt.Sprintf("%s should be %s", cemail, eemail))
+	expect(t, cemail == eemail, fmt.Sprintf("%s should be %s", cemail, eemail))
+
+	email = "test.TEST.test@gmail.com"
+	eemail = "testtesttest@gmail.com"
+	cemail = c.CanonEmail(email)
+	expect(t, cemail == eemail, fmt.Sprintf("%s should be %s", cemail, eemail))
+
+	email = "test..TEST.test@gmail.com"
+	eemail = "testtesttest@gmail.com"
+	cemail = c.CanonEmail(email)
+	expect(t, cemail == eemail, fmt.Sprintf("%s should be %s", cemail, eemail))
 
 	email = "TEST.test@example.com"
 	lowEmail := strings.ToLower(email)
 	cemail = c.CanonEmail(email)
-	expect(t,cemail==lowEmail,fmt.Sprintf("%s should be %s", cemail, lowEmail))
+	expect(t, cemail == lowEmail, fmt.Sprintf("%s should be %s", cemail, lowEmail))
+
+	email = "test.TEST.test@example.com"
+	lowEmail = strings.ToLower(email)
+	cemail = c.CanonEmail(email)
+	expect(t, cemail == lowEmail, fmt.Sprintf("%s should be %s", cemail, lowEmail))
+
+	/*weakPass := func(password, username, email string) func(error,string,...interface{}) {
+		err := c.WeakPassword(password, username, email)
+		return func(expectErr error, m string, p ...interface{}) {
+			m = fmt.Sprintf("pass=%s, user=%s, email=%s ", password, username, email) + m
+			expect(t, err == expectErr, fmt.Sprintf(m,p...))
+		}
+	}*/
+	nilErrStr := func(e error) error {
+		if e == nil {
+			e = errors.New("nil")
+		}
+		return e
+	}
+	weakPass := func(password, username, email string) func(error) {
+		err := c.WeakPassword(password, username, email)
+		e := nilErrStr(err)
+		m := fmt.Sprintf("pass=%s, user=%s, email=%s ", password, username, email)
+		return func(expectErr error) {
+			ee := nilErrStr(expectErr)
+			expect(t, err == expectErr, m+fmt.Sprintf("err should be '%s' not '%s'", ee, e))
+		}
+	}
+
+	//weakPass("test", "test", "test@example.com")(c.ErrWeakPasswordContains,"err should be ErrWeakPasswordContains not '%s'")
+	weakPass("", "draw", "test@example.com")(c.ErrWeakPasswordNone)
+	weakPass("test", "draw", "test@example.com")(c.ErrWeakPasswordShort)
+	weakPass("testtest", "draw", "test@example.com")(c.ErrWeakPasswordContains)
+	weakPass("testdraw", "draw", "test@example.com")(c.ErrWeakPasswordNameInPass)
+	weakPass("test@example.com", "draw", "test@example.com")(c.ErrWeakPasswordEmailInPass)
+	weakPass("meet@example.com2", "draw", "")(c.ErrWeakPasswordNoUpper)
+	weakPass("Meet@example.com2", "draw", "")(nil)
+	weakPass("test2", "draw", "test@example.com")(c.ErrWeakPasswordShort)
+	weakPass("test22222222", "draw", "test@example.com")(c.ErrWeakPasswordContains)
+	weakPass("superman", "draw", "test@example.com")(c.ErrWeakPasswordCommon)
+	weakPass("K\\@<^s}1", "draw", "test@example.com")(nil)
+	weakPass("K\\@<^s}r", "draw", "test@example.com")(c.ErrWeakPasswordNoNumbers)
+	weakPass("k\\@<^s}1", "draw", "test@example.com")(c.ErrWeakPasswordNoUpper)
+	weakPass("aaaaaaaa", "draw", "test@example.com")(c.ErrWeakPasswordNoUpper)
+	weakPass("aA1aA1aA1", "draw", "test@example.com")(c.ErrWeakPasswordUniqueChars)
+	weakPass("abababab", "draw", "test@example.com")(c.ErrWeakPasswordNoUpper)
+	weakPass("11111111111111111111", "draw", "test@example.com")(c.ErrWeakPasswordNoUpper)
+	weakPass("aaaaaaaaaaAAAAAAAAAA", "draw", "test@example.com")(c.ErrWeakPasswordUniqueChars)
+	weakPass("-:u/nMxb,A!n=B;H\\sjM", "draw", "test@example.com")(nil)
 
 	// TODO: More utils.go tests
 }