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csrf protection

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This commit is contained in:
MrGeorgen
2021-04-10 19:27:15 +02:00
parent ed48629a61
commit 66ef9e6d0c
9 changed files with 40 additions and 25 deletions
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1
.gitignore vendored
View File

@ -18,3 +18,4 @@
secrets.json
test
secrets_test.json
csrf-key

5
go.mod
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@ -5,13 +5,14 @@ go 1.14
require (
code.gitea.io/sdk/gitea v0.13.2
github.com/bwmarrin/discordgo v0.23.2
github.com/cornelk/hashmap v1.0.1
github.com/dchest/siphash v1.2.2 // indirect
github.com/dlclark/regexp2 v1.4.0
github.com/go-sql-driver/mysql v1.5.0
github.com/golang/protobuf v1.4.3 // indirect
github.com/gorilla/csrf v1.7.0
github.com/gorilla/mux v1.8.0
github.com/gorilla/websocket v1.4.2 // indirect
github.com/mattn/go-sqlite3 v1.14.6
github.com/mitchellh/mapstructure v1.4.1
github.com/zaddok/moodle v0.6.6
golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
golang.org/x/net v0.0.0-20210119194325-5f4716e94777 // indirect

22
go.sum
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@ -6,14 +6,8 @@ github.com/bwmarrin/discordgo v0.23.2 h1:BzrtTktixGHIu9Tt7dEE6diysEF9HWnXeHuoJEt
github.com/bwmarrin/discordgo v0.23.2/go.mod h1:c1WtWUGN6nREDmzIpyTp/iD3VYt4Fpx+bVyfBG7JE+M=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cornelk/hashmap v1.0.1 h1:RXGcy29hEdLLV8T6aK4s+BAd4tq4+3Hq50N2GoG0uIg=
github.com/cornelk/hashmap v1.0.1/go.mod h1:8wbysTUDnwJGrPZ1Iwsou3m+An6sldFrJItjRhfegCw=
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dchest/siphash v1.1.0 h1:1Rs9eTUlZLPBEvV+2sTaM8O0NWn0ppbgqS7p11aWawI=
github.com/dchest/siphash v1.1.0/go.mod h1:q+IRvb2gOSrUnYoPqHiyHXS0FOBBOdl6tONBlVnOnt4=
github.com/dchest/siphash v1.2.2 h1:9DFz8tQwl9pTVt5iok/9zKyzA1Q6bRGiF3HPiEEVr9I=
github.com/dchest/siphash v1.2.2/go.mod h1:q+IRvb2gOSrUnYoPqHiyHXS0FOBBOdl6tONBlVnOnt4=
github.com/dlclark/regexp2 v1.4.0 h1:F1rxgk7p4uKjwIQxBs9oAXe5CqrXlCduYEJvrF4u93E=
github.com/dlclark/regexp2 v1.4.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@ -23,7 +17,6 @@ github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LB
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
@ -40,7 +33,12 @@ github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.0 h1:/QaMHBdZ26BB3SSst0Iwl10Epc+xhTquomWX0oZEB6w=
github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
github.com/gorilla/csrf v1.7.0 h1:mMPjV5/3Zd460xCavIkppUdvnl5fPXMpv2uz2Zyg7/Y=
github.com/gorilla/csrf v1.7.0/go.mod h1:+a/4tCmqhG6/w4oafeAZ9pEa3/NZOWYVbD9fV0FwIQA=
github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ=
github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
@ -48,6 +46,10 @@ github.com/hashicorp/go-version v1.2.1 h1:zEfKbn2+PDgroKdiOzqiE8rsmLqU2uwi5PB5pB
github.com/hashicorp/go-version v1.2.1/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
github.com/mattn/go-sqlite3 v1.14.6 h1:dNPt6NO46WmLVt2DLNpwczCmdV5boIZ6g/tlDrlRUbg=
github.com/mattn/go-sqlite3 v1.14.6/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
github.com/mitchellh/mapstructure v1.4.1 h1:CpVNEelQCZBooIPDn+AR3NpivK/TIKU8bDxdASFVQag=
github.com/mitchellh/mapstructure v1.4.1/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@ -56,7 +58,6 @@ github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJy
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/zaddok/moodle v0.6.6 h1:DQqlOIV9aJVm+jjCPRYuntQgeTafutvLwj5dTMhcx/Y=
github.com/zaddok/moodle v0.6.6/go.mod h1:wZJLOprT38gE97uCczwUym6iSGzXWDka069e8VwJ9ro=
golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16 h1:y6ce7gCWtnH+m3dCjzQ1PCuwl28DDIc3VNnvY29DlIA=
golang.org/x/crypto v0.0.0-20181030102418-4d3f4d9ffa16/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad h1:DN0cp81fZ3njFcrLCytUHRSUkqBjfTo4Tx9RJTWs0EY=
@ -70,7 +71,6 @@ golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73r
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190603091049-60506f45cf65 h1:+rhAzEzT3f4JtomfC371qB+0Ola2caSKcY69NUBZrRQ=
golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
golang.org/x/net v0.0.0-20210119194325-5f4716e94777 h1:003p0dJM77cxMSyCPFphvZf/Y5/NXf5fzg6ufd1/Oew=
golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
@ -98,7 +98,6 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IV
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.6.6 h1:lMO5rYAqUxkmaj76jAkRUvt5JZgFymx/+Q5Mzfivuhc=
google.golang.org/appengine v1.6.6/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
@ -114,7 +113,6 @@ google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQ
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=

2
src/api.go
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@ -18,7 +18,7 @@ func accountApi(w http.ResponseWriter, r *http.Request) {
var account accountApiResponse
var success bool
var usernameInter interface{}
usernameInter, success = sessions.GetStringKey(accountKey)
usernameInter, success = sessions.Load(accountKey)
account.Username = usernameInter.(string)
if !success {
http.Error(w, "Error 400 invalid session", 400)

2
src/login.go
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@ -47,7 +47,7 @@ func login(w http.ResponseWriter, r *http.Request) {
}
}
if r.Method == http.MethodGet || !login {
runTemplate(w, loginTmpl, loginStruct)
runTemplate(r, w, loginTmpl, loginStruct)
}
}

19
src/main.go
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@ -15,6 +15,8 @@ import (
"regexp"
"code.gitea.io/sdk/gitea"
"fmt"
"github.com/gorilla/csrf"
"github.com/gorilla/mux"
)
var discord *discordgo.Session
var secret secrets_json
@ -94,13 +96,20 @@ func main() {
rusername = regexp.MustCompile("^([[:lower:]]|\\d|_|-|\\.){1,40}$")
rpassword = regexp2.MustCompile("^(?=.{8,255}$)(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*\\W).*$", 0)
stmtCreateAccount, err = db.Prepare("INSERT INTO account(username, email, hash, salt, discordUserId) VALUES(?,?,?,?,?)")
http.HandleFunc("/register", register)
http.HandleFunc("/submit", submit)
http.HandleFunc("/login", login)
http.HandleFunc("/api/accountinfo", accountApi)
csrfKeyfile, err := os.Open("csrf-key")
log(err)
csrfKey, err := ioutil.ReadAll(csrfKeyfile)
log(err)
csrfKeyfile.Close()
csrfHandler := csrf.Protect(csrfKey)
router := mux.NewRouter()
router.HandleFunc("/register", register)
router.HandleFunc("/submit", submit)
router.HandleFunc("/login", login)
router.HandleFunc("/api/accountinfo", accountApi)
if(!isTest) {
http.ListenAndServe(":" + fmt.Sprint(config.Port), nil)
http.ListenAndServe(":" + fmt.Sprint(config.Port), csrfHandler(router))
}
}

4
src/register.go
View File

@ -88,7 +88,7 @@ func register(w http.ResponseWriter, r *http.Request) {
usernameExitsMap.Store(newAccount.username, nil)
discordUserExitsMap.Store(newAccount.discordId, nil)
}
registerReturn: runTemplate(w, registerTmpl, registerStruct)
registerReturn: runTemplate(r, w, registerTmpl, registerStruct)
}
func submit(w http.ResponseWriter, r *http.Request) {
var err error
@ -124,7 +124,7 @@ func register(w http.ResponseWriter, r *http.Request) {
}
}
submitReturn: runTemplate(w, submitTmpl, submitStruct)
submitReturn: runTemplate(r, w, submitTmpl, submitStruct)
}
func getRbuMember(user string, tag string) (*discordgo.Member, bool) {
allUsers, err := discord.GuildMembers(secret.DiscordServerID, "0", 1000)

9
src/util.go
View File

@ -3,6 +3,8 @@ import (
"golang.org/x/crypto/argon2"
"net/http"
"html/template"
"github.com/gorilla/csrf"
"github.com/mitchellh/mapstructure"
)
func log(err error) {
@ -14,8 +16,11 @@ func log(err error) {
func hashFunc(password []byte, salt []byte) []byte {
return argon2.IDKey(password, salt, 1, 64*1024, 4, 32)
}
func runTemplate(w http.ResponseWriter, template *template.Template, templateData interface{}) {
func runTemplate(r *http.Request, w http.ResponseWriter, template *template.Template, templateData interface{}) {
var templateMap map[string]interface{}
mapstructure.Decode(templateData, &templateMap)
templateMap[csrf.TemplateTag] = csrf.TemplateField(r)
w.Header().Set("Content-Type", "text/html")
var err error = template.Execute(w, templateData)
var err error = template.Execute(w, templateMap)
log(err)
}

1
tmpl/register.html
View File

@ -64,6 +64,7 @@
<input class="responsive" type="text" name="discordUser"><br/>
<label class="responsive">Passwort:</label><br/>
<input class="responsive" type="password" name="password"><br/>
{{ .csrfField }}
<input type="submit" name="createAccount" value="Account erstellen"class="btn active responsive">
</form>
{{end}}