Use binding middleware
This commit is contained in:
Unknwon
Родитель
ecf3eb4307
Коммит
fa241efa6d
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@ -16,6 +16,7 @@ github.com/go-xorm/xorm = commit:2d8b3135b1
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github.com/gogits/gfm = commit:40f747a9c0
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github.com/gogits/oauth2 = commit:99cbec870a
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github.com/lib/pq = commit:b021d0ef20
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github.com/macaron-contrib/binding =
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github.com/macaron-contrib/cache =
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github.com/macaron-contrib/captcha = commit:d37d37eeea
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github.com/macaron-contrib/csrf =
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@ -15,6 +15,7 @@ import (
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"github.com/Unknwon/macaron"
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"github.com/codegangsta/cli"
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"github.com/macaron-contrib/binding"
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"github.com/macaron-contrib/cache"
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"github.com/macaron-contrib/captcha"
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"github.com/macaron-contrib/csrf"
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@ -30,7 +31,6 @@ import (
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"github.com/gogits/gogs/modules/git"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/gogs/modules/middleware"
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"github.com/gogits/gogs/modules/middleware/binding"
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"github.com/gogits/gogs/modules/setting"
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"github.com/gogits/gogs/routers"
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"github.com/gogits/gogs/routers/admin"
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@ -6,9 +6,8 @@ package auth
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import (
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"github.com/Unknwon/macaron"
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"github.com/macaron-contrib/i18n"
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"github.com/gogits/gogs/modules/middleware/binding"
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"github.com/macaron-contrib/binding"
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)
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type AdminEditUserForm struct {
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@ -22,6 +21,6 @@ type AdminEditUserForm struct {
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LoginType int `form:"login_type"`
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}
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func (f *AdminEditUserForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *AdminEditUserForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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@ -8,11 +8,9 @@ import (
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"reflect"
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"github.com/Unknwon/macaron"
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"github.com/macaron-contrib/i18n"
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"github.com/macaron-contrib/binding"
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"github.com/gogits/gogs/modules/auth"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/gogs/modules/middleware/binding"
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)
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type MarkdownForm struct {
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@ -21,18 +19,13 @@ type MarkdownForm struct {
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Context string `form:"context"`
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}
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func (f *MarkdownForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validateApiReq(errs, ctx.Data, f, l)
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func (f *MarkdownForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validateApiReq(errs, ctx.Data, f)
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}
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func validateApiReq(errs *binding.Errors, data map[string]interface{}, f interface{}, l i18n.Locale) {
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if errs.Count() == 0 {
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return
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} else if len(errs.Overall) > 0 {
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for _, err := range errs.Overall {
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log.Error(4, "%s: %v", reflect.TypeOf(f), err)
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}
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return
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func validateApiReq(errs binding.Errors, data map[string]interface{}, f auth.Form) binding.Errors {
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if errs.Len() == 0 {
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return errs
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}
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data["HasError"] = true
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@ -54,26 +47,27 @@ func validateApiReq(errs *binding.Errors, data map[string]interface{}, f interfa
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continue
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}
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if err, ok := errs.Fields[field.Name]; ok {
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switch err {
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case binding.BindingRequireError:
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if errs[0].FieldNames[0] == field.Name {
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switch errs[0].Classification {
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case binding.RequiredError:
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data["ErrorMsg"] = fieldName + " cannot be empty"
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case binding.BindingAlphaDashError:
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case binding.AlphaDashError:
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data["ErrorMsg"] = fieldName + " must be valid alpha or numeric or dash(-_) characters"
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case binding.BindingAlphaDashDotError:
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case binding.AlphaDashDotError:
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data["ErrorMsg"] = fieldName + " must be valid alpha or numeric or dash(-_) or dot characters"
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case binding.BindingMinSizeError:
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case binding.MinSizeError:
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data["ErrorMsg"] = fieldName + " must contain at least " + auth.GetMinSize(field) + " characters"
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case binding.BindingMaxSizeError:
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case binding.MaxSizeError:
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data["ErrorMsg"] = fieldName + " must contain at most " + auth.GetMaxSize(field) + " characters"
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case binding.BindingEmailError:
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case binding.EmailError:
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data["ErrorMsg"] = fieldName + " is not a valid e-mail address"
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case binding.BindingUrlError:
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case binding.UrlError:
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data["ErrorMsg"] = fieldName + " is not a valid URL"
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default:
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data["ErrorMsg"] = "Unknown error: " + err
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data["ErrorMsg"] = "Unknown error: " + errs[0].Classification
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}
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return
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return errs
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}
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}
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return errs
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}
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@ -9,12 +9,12 @@ import (
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"reflect"
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"strings"
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"github.com/macaron-contrib/i18n"
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"github.com/Unknwon/macaron"
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"github.com/macaron-contrib/binding"
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"github.com/macaron-contrib/session"
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"github.com/gogits/gogs/models"
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"github.com/gogits/gogs/modules/log"
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"github.com/gogits/gogs/modules/middleware/binding"
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"github.com/gogits/gogs/modules/setting"
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)
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@ -69,6 +69,10 @@ func SignedInUser(header http.Header, sess session.Store) *models.User {
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return u
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}
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type Form interface {
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binding.Validator
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}
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// AssignForm assign form values back to the template data.
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func AssignForm(form interface{}, data map[string]interface{}) {
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typ := reflect.TypeOf(form)
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@ -109,14 +113,9 @@ func GetMaxSize(field reflect.StructField) string {
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return getSize(field, "MaxSize(")
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}
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func validate(errs *binding.Errors, data map[string]interface{}, f interface{}, l i18n.Locale) {
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if errs.Count() == 0 {
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return
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} else if len(errs.Overall) > 0 {
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for _, err := range errs.Overall {
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log.Error(4, "%s: %v", reflect.TypeOf(f), err)
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}
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return
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func validate(errs binding.Errors, data map[string]interface{}, f Form, l macaron.Locale) binding.Errors {
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if errs.Len() == 0 {
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return errs
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}
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data["HasError"] = true
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@ -139,28 +138,29 @@ func validate(errs *binding.Errors, data map[string]interface{}, f interface{},
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continue
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}
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if err, ok := errs.Fields[field.Name]; ok {
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if errs[0].FieldNames[0] == field.Name {
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data["Err_"+field.Name] = true
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trName := l.Tr("form." + field.Name)
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switch err {
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case binding.BindingRequireError:
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switch errs[0].Classification {
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case binding.RequiredError:
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data["ErrorMsg"] = trName + l.Tr("form.require_error")
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case binding.BindingAlphaDashError:
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case binding.AlphaDashError:
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data["ErrorMsg"] = trName + l.Tr("form.alpha_dash_error")
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case binding.BindingAlphaDashDotError:
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case binding.AlphaDashDotError:
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data["ErrorMsg"] = trName + l.Tr("form.alpha_dash_dot_error")
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case binding.BindingMinSizeError:
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case binding.MinSizeError:
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data["ErrorMsg"] = trName + l.Tr("form.min_size_error", GetMinSize(field))
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case binding.BindingMaxSizeError:
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case binding.MaxSizeError:
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data["ErrorMsg"] = trName + l.Tr("form.max_size_error", GetMaxSize(field))
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case binding.BindingEmailError:
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case binding.EmailError:
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data["ErrorMsg"] = trName + l.Tr("form.email_error")
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case binding.BindingUrlError:
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case binding.UrlError:
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data["ErrorMsg"] = trName + l.Tr("form.url_error")
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default:
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data["ErrorMsg"] = l.Tr("form.unknown_error") + " " + err
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data["ErrorMsg"] = l.Tr("form.unknown_error") + " " + errs[0].Classification
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}
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return
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return errs
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}
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}
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return errs
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}
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@ -6,9 +6,7 @@ package auth
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import (
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"github.com/Unknwon/macaron"
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"github.com/macaron-contrib/i18n"
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"github.com/gogits/gogs/modules/middleware/binding"
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"github.com/macaron-contrib/binding"
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)
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type AuthenticationForm struct {
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@ -31,6 +29,6 @@ type AuthenticationForm struct {
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AllowAutoRegister bool `form:"allowautoregister"`
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}
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func (f *AuthenticationForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *AuthenticationForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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@ -6,9 +6,7 @@ package auth
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import (
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"github.com/Unknwon/macaron"
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"github.com/macaron-contrib/i18n"
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"github.com/gogits/gogs/modules/middleware/binding"
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"github.com/macaron-contrib/binding"
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)
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// ________ .__ __ .__
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@ -23,8 +21,8 @@ type CreateOrgForm struct {
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Email string `form:"email" binding:"Required;Email;MaxSize(50)"`
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}
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func (f *CreateOrgForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *CreateOrgForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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type UpdateOrgSettingForm struct {
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@ -37,8 +35,8 @@ type UpdateOrgSettingForm struct {
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Avatar string `form:"avatar" binding:"Required;Email;MaxSize(50)"`
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}
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func (f *UpdateOrgSettingForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *UpdateOrgSettingForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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// ___________
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@ -54,6 +52,6 @@ type CreateTeamForm struct {
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Permission string `form:"permission"`
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}
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func (f *CreateTeamForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *CreateTeamForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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@ -6,9 +6,7 @@ package auth
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import (
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"github.com/Unknwon/macaron"
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"github.com/macaron-contrib/i18n"
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"github.com/gogits/gogs/modules/middleware/binding"
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"github.com/macaron-contrib/binding"
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)
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type AddSSHKeyForm struct {
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@ -16,6 +14,6 @@ type AddSSHKeyForm struct {
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Content string `form:"content" binding:"Required"`
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}
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func (f *AddSSHKeyForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *AddSSHKeyForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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@ -6,9 +6,7 @@ package auth
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import (
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"github.com/Unknwon/macaron"
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"github.com/macaron-contrib/i18n"
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"github.com/gogits/gogs/modules/middleware/binding"
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"github.com/macaron-contrib/binding"
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)
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// _______________________________________ _________.______________________ _______________.___.
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@ -28,8 +26,8 @@ type CreateRepoForm struct {
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InitReadme bool `form:"init_readme"`
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}
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func (f *CreateRepoForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *CreateRepoForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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type MigrateRepoForm struct {
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@ -43,8 +41,8 @@ type MigrateRepoForm struct {
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Description string `form:"desc" binding:"MaxSize(255)"`
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}
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func (f *MigrateRepoForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *MigrateRepoForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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type RepoSettingForm struct {
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@ -57,8 +55,8 @@ type RepoSettingForm struct {
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GoGet bool `form:"goget"`
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}
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func (f *RepoSettingForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *RepoSettingForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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// __ __ ___. .__ .__ __
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@ -77,8 +75,8 @@ type NewWebhookForm struct {
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Active bool `form:"active"`
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}
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func (f *NewWebhookForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *NewWebhookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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type NewSlackHookForm struct {
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@ -90,8 +88,8 @@ type NewSlackHookForm struct {
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Active bool `form:"active"`
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}
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func (f *NewSlackHookForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *NewSlackHookForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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// .___
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@ -109,8 +107,8 @@ type CreateIssueForm struct {
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Content string `form:"content"`
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}
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func (f *CreateIssueForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *CreateIssueForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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// _____ .__.__ __
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@ -126,8 +124,8 @@ type CreateMilestoneForm struct {
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Deadline string `form:"due_date"`
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}
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func (f *CreateMilestoneForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *CreateMilestoneForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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// .____ ___. .__
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@ -142,8 +140,8 @@ type CreateLabelForm struct {
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Color string `form:"color" binding:"Required;Size(7)"`
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}
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func (f *CreateLabelForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *CreateLabelForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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// __________ .__
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@ -162,8 +160,8 @@ type NewReleaseForm struct {
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Prerelease bool `form:"prerelease"`
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}
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func (f *NewReleaseForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *NewReleaseForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
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type EditReleaseForm struct {
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||||
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@ -174,6 +172,6 @@ type EditReleaseForm struct {
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Prerelease bool `form:"prerelease"`
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}
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||||
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||||
func (f *EditReleaseForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
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validate(errs, ctx.Data, f, l)
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func (f *EditReleaseForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
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return validate(errs, ctx.Data, f, ctx.Locale)
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}
|
||||
|
|
|
|||
|
|
@ -6,9 +6,7 @@ package auth
|
|||
|
||||
import (
|
||||
"github.com/Unknwon/macaron"
|
||||
"github.com/macaron-contrib/i18n"
|
||||
|
||||
"github.com/gogits/gogs/modules/middleware/binding"
|
||||
"github.com/macaron-contrib/binding"
|
||||
)
|
||||
|
||||
type InstallForm struct {
|
||||
|
|
@ -34,8 +32,8 @@ type InstallForm struct {
|
|||
AdminEmail string `form:"admin_email" binding:"Required;Email;MaxSize(50)"`
|
||||
}
|
||||
|
||||
func (f *InstallForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
|
||||
validate(errs, ctx.Data, f, l)
|
||||
func (f *InstallForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
|
||||
return validate(errs, ctx.Data, f, ctx.Locale)
|
||||
}
|
||||
|
||||
// _____ ____ _________________ ___
|
||||
|
|
@ -54,8 +52,8 @@ type RegisterForm struct {
|
|||
LoginName string `form:"loginname"`
|
||||
}
|
||||
|
||||
func (f *RegisterForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
|
||||
validate(errs, ctx.Data, f, l)
|
||||
func (f *RegisterForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
|
||||
return validate(errs, ctx.Data, f, ctx.Locale)
|
||||
}
|
||||
|
||||
type SignInForm struct {
|
||||
|
|
@ -64,8 +62,8 @@ type SignInForm struct {
|
|||
Remember bool `form:"remember"`
|
||||
}
|
||||
|
||||
func (f *SignInForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
|
||||
validate(errs, ctx.Data, f, l)
|
||||
func (f *SignInForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
|
||||
return validate(errs, ctx.Data, f, ctx.Locale)
|
||||
}
|
||||
|
||||
// __________________________________________.___ _______ ________ _________
|
||||
|
|
@ -84,8 +82,8 @@ type UpdateProfileForm struct {
|
|||
Avatar string `form:"avatar" binding:"Required;Email;MaxSize(50)"`
|
||||
}
|
||||
|
||||
func (f *UpdateProfileForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
|
||||
validate(errs, ctx.Data, f, l)
|
||||
func (f *UpdateProfileForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
|
||||
return validate(errs, ctx.Data, f, ctx.Locale)
|
||||
}
|
||||
|
||||
type ChangePasswordForm struct {
|
||||
|
|
@ -94,6 +92,6 @@ type ChangePasswordForm struct {
|
|||
Retype string `form:"retype"`
|
||||
}
|
||||
|
||||
func (f *ChangePasswordForm) Validate(ctx *macaron.Context, errs *binding.Errors, l i18n.Locale) {
|
||||
validate(errs, ctx.Data, f, l)
|
||||
func (f *ChangePasswordForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {
|
||||
return validate(errs, ctx.Data, f, ctx.Locale)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,472 +0,0 @@
|
|||
// Copyright 2013 The Martini Contrib Authors. All rights reserved.
|
||||
// Copyright 2014 The Gogs Authors. All rights reserved.
|
||||
// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package binding
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"reflect"
|
||||
"regexp"
|
||||
"strconv"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
|
||||
"github.com/Unknwon/macaron"
|
||||
"github.com/macaron-contrib/i18n"
|
||||
)
|
||||
|
||||
/*
|
||||
To the land of Middle-ware Earth:
|
||||
|
||||
One func to rule them all,
|
||||
One func to find them,
|
||||
One func to bring them all,
|
||||
And in this package BIND them.
|
||||
*/
|
||||
|
||||
// Bind accepts a copy of an empty struct and populates it with
|
||||
// values from the request (if deserialization is successful). It
|
||||
// wraps up the functionality of the Form and Json middleware
|
||||
// according to the Content-Type of the request, and it guesses
|
||||
// if no Content-Type is specified. Bind invokes the ErrorHandler
|
||||
// middleware to bail out if errors occurred. If you want to perform
|
||||
// your own error handling, use Form or Json middleware directly.
|
||||
// An interface pointer can be added as a second argument in order
|
||||
// to map the struct to a specific interface.
|
||||
func Bind(obj interface{}, ifacePtr ...interface{}) macaron.Handler {
|
||||
return func(ctx *macaron.Context) {
|
||||
contentType := ctx.Req.Header.Get("Content-Type")
|
||||
|
||||
if strings.Contains(contentType, "form-urlencoded") {
|
||||
ctx.Invoke(Form(obj, ifacePtr...))
|
||||
} else if strings.Contains(contentType, "multipart/form-data") {
|
||||
ctx.Invoke(MultipartForm(obj, ifacePtr...))
|
||||
} else if strings.Contains(contentType, "json") {
|
||||
ctx.Invoke(Json(obj, ifacePtr...))
|
||||
} else {
|
||||
ctx.Invoke(Json(obj, ifacePtr...))
|
||||
if getErrors(ctx).Count() > 0 {
|
||||
ctx.Invoke(Form(obj, ifacePtr...))
|
||||
}
|
||||
}
|
||||
|
||||
ctx.Invoke(ErrorHandler)
|
||||
}
|
||||
}
|
||||
|
||||
// BindIgnErr will do the exactly same thing as Bind but without any
|
||||
// error handling, which user has freedom to deal with them.
|
||||
// This allows user take advantages of validation.
|
||||
func BindIgnErr(obj interface{}, ifacePtr ...interface{}) macaron.Handler {
|
||||
return func(ctx *macaron.Context, req *http.Request) {
|
||||
contentType := req.Header.Get("Content-Type")
|
||||
|
||||
if strings.Contains(contentType, "form-urlencoded") {
|
||||
ctx.Invoke(Form(obj, ifacePtr...))
|
||||
} else if strings.Contains(contentType, "multipart/form-data") {
|
||||
ctx.Invoke(MultipartForm(obj, ifacePtr...))
|
||||
} else if strings.Contains(contentType, "json") {
|
||||
ctx.Invoke(Json(obj, ifacePtr...))
|
||||
} else {
|
||||
ctx.Invoke(Json(obj, ifacePtr...))
|
||||
if getErrors(ctx).Count() > 0 {
|
||||
ctx.Invoke(Form(obj, ifacePtr...))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Form is middleware to deserialize form-urlencoded data from the request.
|
||||
// It gets data from the form-urlencoded body, if present, or from the
|
||||
// query string. It uses the http.Request.ParseForm() method
|
||||
// to perform deserialization, then reflection is used to map each field
|
||||
// into the struct with the proper type. Structs with primitive slice types
|
||||
// (bool, float, int, string) can support deserialization of repeated form
|
||||
// keys, for example: key=val1&key=val2&key=val3
|
||||
// An interface pointer can be added as a second argument in order
|
||||
// to map the struct to a specific interface.
|
||||
func Form(formStruct interface{}, ifacePtr ...interface{}) macaron.Handler {
|
||||
return func(ctx *macaron.Context) {
|
||||
ensureNotPointer(formStruct)
|
||||
formStruct := reflect.New(reflect.TypeOf(formStruct))
|
||||
errors := newErrors()
|
||||
parseErr := ctx.Req.ParseForm()
|
||||
|
||||
// Format validation of the request body or the URL would add considerable overhead,
|
||||
// and ParseForm does not complain when URL encoding is off.
|
||||
// Because an empty request body or url can also mean absence of all needed values,
|
||||
// it is not in all cases a bad request, so let's return 422.
|
||||
if parseErr != nil {
|
||||
errors.Overall[BindingDeserializationError] = parseErr.Error()
|
||||
}
|
||||
|
||||
mapForm(formStruct, ctx.Req.Form, errors)
|
||||
|
||||
validateAndMap(formStruct, ctx, errors, ifacePtr...)
|
||||
}
|
||||
}
|
||||
|
||||
func MultipartForm(formStruct interface{}, ifacePtr ...interface{}) macaron.Handler {
|
||||
return func(ctx *macaron.Context) {
|
||||
ensureNotPointer(formStruct)
|
||||
formStruct := reflect.New(reflect.TypeOf(formStruct))
|
||||
errors := newErrors()
|
||||
|
||||
// Workaround for multipart forms returning nil instead of an error
|
||||
// when content is not multipart
|
||||
// https://code.google.com/p/go/issues/detail?id=6334
|
||||
multipartReader, err := ctx.Req.MultipartReader()
|
||||
if err != nil {
|
||||
errors.Overall[BindingDeserializationError] = err.Error()
|
||||
} else {
|
||||
form, parseErr := multipartReader.ReadForm(MaxMemory)
|
||||
|
||||
if parseErr != nil {
|
||||
errors.Overall[BindingDeserializationError] = parseErr.Error()
|
||||
}
|
||||
|
||||
ctx.Req.MultipartForm = form
|
||||
}
|
||||
|
||||
mapForm(formStruct, ctx.Req.MultipartForm.Value, errors)
|
||||
|
||||
validateAndMap(formStruct, ctx, errors, ifacePtr...)
|
||||
}
|
||||
}
|
||||
|
||||
// Json is middleware to deserialize a JSON payload from the request
|
||||
// into the struct that is passed in. The resulting struct is then
|
||||
// validated, but no error handling is actually performed here.
|
||||
// An interface pointer can be added as a second argument in order
|
||||
// to map the struct to a specific interface.
|
||||
func Json(jsonStruct interface{}, ifacePtr ...interface{}) macaron.Handler {
|
||||
return func(ctx *macaron.Context) {
|
||||
ensureNotPointer(jsonStruct)
|
||||
jsonStruct := reflect.New(reflect.TypeOf(jsonStruct))
|
||||
errors := newErrors()
|
||||
|
||||
if ctx.Req.Body != nil {
|
||||
defer ctx.Req.Body.Close()
|
||||
}
|
||||
|
||||
if err := json.NewDecoder(ctx.Req.Body).Decode(jsonStruct.Interface()); err != nil && err != io.EOF {
|
||||
errors.Overall[BindingDeserializationError] = err.Error()
|
||||
}
|
||||
|
||||
validateAndMap(jsonStruct, ctx, errors, ifacePtr...)
|
||||
}
|
||||
}
|
||||
|
||||
// Validate is middleware to enforce required fields. If the struct
|
||||
// passed in is a Validator, then the user-defined Validate method
|
||||
// is executed, and its errors are mapped to the context. This middleware
|
||||
// performs no error handling: it merely detects them and maps them.
|
||||
func Validate(obj interface{}) macaron.Handler {
|
||||
return func(ctx *macaron.Context, l i18n.Locale) {
|
||||
errors := newErrors()
|
||||
validateStruct(errors, obj)
|
||||
|
||||
if validator, ok := obj.(Validator); ok {
|
||||
validator.Validate(ctx, errors, l)
|
||||
}
|
||||
ctx.Map(*errors)
|
||||
}
|
||||
}
|
||||
|
||||
var (
|
||||
alphaDashPattern = regexp.MustCompile("[^\\d\\w-_]")
|
||||
alphaDashDotPattern = regexp.MustCompile("[^\\d\\w-_\\.]")
|
||||
emailPattern = regexp.MustCompile("[\\w!#$%&'*+/=?^_`{|}~-]+(?:\\.[\\w!#$%&'*+/=?^_`{|}~-]+)*@(?:[\\w](?:[\\w-]*[\\w])?\\.)+[a-zA-Z0-9](?:[\\w-]*[\\w])?")
|
||||
urlPattern = regexp.MustCompile(`(http|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?`)
|
||||
)
|
||||
|
||||
func validateStruct(errors *Errors, obj interface{}) {
|
||||
typ := reflect.TypeOf(obj)
|
||||
val := reflect.ValueOf(obj)
|
||||
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
typ = typ.Elem()
|
||||
val = val.Elem()
|
||||
}
|
||||
|
||||
for i := 0; i < typ.NumField(); i++ {
|
||||
field := typ.Field(i)
|
||||
|
||||
// Allow ignored fields in the struct
|
||||
if field.Tag.Get("form") == "-" {
|
||||
continue
|
||||
}
|
||||
|
||||
fieldValue := val.Field(i).Interface()
|
||||
if field.Type.Kind() == reflect.Struct {
|
||||
validateStruct(errors, fieldValue)
|
||||
continue
|
||||
}
|
||||
|
||||
zero := reflect.Zero(field.Type).Interface()
|
||||
|
||||
// Match rules.
|
||||
for _, rule := range strings.Split(field.Tag.Get("binding"), ";") {
|
||||
if len(rule) == 0 {
|
||||
continue
|
||||
}
|
||||
|
||||
switch {
|
||||
case rule == "Required":
|
||||
if reflect.DeepEqual(zero, fieldValue) {
|
||||
errors.Fields[field.Name] = BindingRequireError
|
||||
break
|
||||
}
|
||||
case rule == "AlphaDash":
|
||||
if alphaDashPattern.MatchString(fmt.Sprintf("%v", fieldValue)) {
|
||||
errors.Fields[field.Name] = BindingAlphaDashError
|
||||
break
|
||||
}
|
||||
case rule == "AlphaDashDot":
|
||||
if alphaDashDotPattern.MatchString(fmt.Sprintf("%v", fieldValue)) {
|
||||
errors.Fields[field.Name] = BindingAlphaDashDotError
|
||||
break
|
||||
}
|
||||
case strings.HasPrefix(rule, "MinSize("):
|
||||
min, err := strconv.Atoi(rule[8 : len(rule)-1])
|
||||
if err != nil {
|
||||
errors.Overall["MinSize"] = err.Error()
|
||||
break
|
||||
}
|
||||
if str, ok := fieldValue.(string); ok && utf8.RuneCountInString(str) < min {
|
||||
errors.Fields[field.Name] = BindingMinSizeError
|
||||
break
|
||||
}
|
||||
v := reflect.ValueOf(fieldValue)
|
||||
if v.Kind() == reflect.Slice && v.Len() < min {
|
||||
errors.Fields[field.Name] = BindingMinSizeError
|
||||
break
|
||||
}
|
||||
case strings.HasPrefix(rule, "MaxSize("):
|
||||
max, err := strconv.Atoi(rule[8 : len(rule)-1])
|
||||
if err != nil {
|
||||
errors.Overall["MaxSize"] = err.Error()
|
||||
break
|
||||
}
|
||||
if str, ok := fieldValue.(string); ok && utf8.RuneCountInString(str) > max {
|
||||
errors.Fields[field.Name] = BindingMaxSizeError
|
||||
break
|
||||
}
|
||||
v := reflect.ValueOf(fieldValue)
|
||||
if v.Kind() == reflect.Slice && v.Len() > max {
|
||||
errors.Fields[field.Name] = BindingMinSizeError
|
||||
break
|
||||
}
|
||||
case rule == "Email":
|
||||
if !emailPattern.MatchString(fmt.Sprintf("%v", fieldValue)) {
|
||||
errors.Fields[field.Name] = BindingEmailError
|
||||
break
|
||||
}
|
||||
case rule == "Url":
|
||||
str := fmt.Sprintf("%v", fieldValue)
|
||||
if len(str) == 0 {
|
||||
continue
|
||||
} else if !urlPattern.MatchString(str) {
|
||||
errors.Fields[field.Name] = BindingUrlError
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func mapForm(formStruct reflect.Value, form map[string][]string, errors *Errors) {
|
||||
typ := formStruct.Elem().Type()
|
||||
|
||||
for i := 0; i < typ.NumField(); i++ {
|
||||
typeField := typ.Field(i)
|
||||
if inputFieldName := typeField.Tag.Get("form"); inputFieldName != "" {
|
||||
structField := formStruct.Elem().Field(i)
|
||||
if !structField.CanSet() {
|
||||
continue
|
||||
}
|
||||
|
||||
inputValue, exists := form[inputFieldName]
|
||||
|
||||
if !exists {
|
||||
continue
|
||||
}
|
||||
|
||||
numElems := len(inputValue)
|
||||
if structField.Kind() == reflect.Slice && numElems > 0 {
|
||||
sliceOf := structField.Type().Elem().Kind()
|
||||
slice := reflect.MakeSlice(structField.Type(), numElems, numElems)
|
||||
for i := 0; i < numElems; i++ {
|
||||
setWithProperType(sliceOf, inputValue[i], slice.Index(i), inputFieldName, errors)
|
||||
}
|
||||
formStruct.Elem().Field(i).Set(slice)
|
||||
} else {
|
||||
setWithProperType(typeField.Type.Kind(), inputValue[0], structField, inputFieldName, errors)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ErrorHandler simply counts the number of errors in the
|
||||
// context and, if more than 0, writes a 400 Bad Request
|
||||
// response and a JSON payload describing the errors with
|
||||
// the "Content-Type" set to "application/json".
|
||||
// Middleware remaining on the stack will not even see the request
|
||||
// if, by this point, there are any errors.
|
||||
// This is a "default" handler, of sorts, and you are
|
||||
// welcome to use your own instead. The Bind middleware
|
||||
// invokes this automatically for convenience.
|
||||
func ErrorHandler(errs Errors, resp http.ResponseWriter) {
|
||||
if errs.Count() > 0 {
|
||||
resp.Header().Set("Content-Type", "application/json; charset=utf-8")
|
||||
if _, ok := errs.Overall[BindingDeserializationError]; ok {
|
||||
resp.WriteHeader(http.StatusBadRequest)
|
||||
} else {
|
||||
resp.WriteHeader(422)
|
||||
}
|
||||
errOutput, _ := json.Marshal(errs)
|
||||
resp.Write(errOutput)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// This sets the value in a struct of an indeterminate type to the
|
||||
// matching value from the request (via Form middleware) in the
|
||||
// same type, so that not all deserialized values have to be strings.
|
||||
// Supported types are string, int, float, and bool.
|
||||
func setWithProperType(valueKind reflect.Kind, val string, structField reflect.Value, nameInTag string, errors *Errors) {
|
||||
switch valueKind {
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
if val == "" {
|
||||
val = "0"
|
||||
}
|
||||
intVal, err := strconv.ParseInt(val, 10, 64)
|
||||
if err != nil {
|
||||
errors.Fields[nameInTag] = BindingIntegerTypeError
|
||||
} else {
|
||||
structField.SetInt(intVal)
|
||||
}
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||
if val == "" {
|
||||
val = "0"
|
||||
}
|
||||
uintVal, err := strconv.ParseUint(val, 10, 64)
|
||||
if err != nil {
|
||||
errors.Fields[nameInTag] = BindingIntegerTypeError
|
||||
} else {
|
||||
structField.SetUint(uintVal)
|
||||
}
|
||||
case reflect.Bool:
|
||||
structField.SetBool(val == "on")
|
||||
case reflect.Float32:
|
||||
if val == "" {
|
||||
val = "0.0"
|
||||
}
|
||||
floatVal, err := strconv.ParseFloat(val, 32)
|
||||
if err != nil {
|
||||
errors.Fields[nameInTag] = BindingFloatTypeError
|
||||
} else {
|
||||
structField.SetFloat(floatVal)
|
||||
}
|
||||
case reflect.Float64:
|
||||
if val == "" {
|
||||
val = "0.0"
|
||||
}
|
||||
floatVal, err := strconv.ParseFloat(val, 64)
|
||||
if err != nil {
|
||||
errors.Fields[nameInTag] = BindingFloatTypeError
|
||||
} else {
|
||||
structField.SetFloat(floatVal)
|
||||
}
|
||||
case reflect.String:
|
||||
structField.SetString(val)
|
||||
}
|
||||
}
|
||||
|
||||
// Don't pass in pointers to bind to. Can lead to bugs.
|
||||
func ensureNotPointer(obj interface{}) {
|
||||
if reflect.TypeOf(obj).Kind() == reflect.Ptr {
|
||||
panic("Pointers are not accepted as binding models")
|
||||
}
|
||||
}
|
||||
|
||||
// Performs validation and combines errors from validation
|
||||
// with errors from deserialization, then maps both the
|
||||
// resulting struct and the errors to the context.
|
||||
func validateAndMap(obj reflect.Value, ctx *macaron.Context, errors *Errors, ifacePtr ...interface{}) {
|
||||
ctx.Invoke(Validate(obj.Interface()))
|
||||
errors.Combine(getErrors(ctx))
|
||||
ctx.Map(*errors)
|
||||
ctx.Map(obj.Elem().Interface())
|
||||
if len(ifacePtr) > 0 {
|
||||
ctx.MapTo(obj.Elem().Interface(), ifacePtr[0])
|
||||
}
|
||||
}
|
||||
|
||||
func newErrors() *Errors {
|
||||
return &Errors{make(map[string]string), make(map[string]string)}
|
||||
}
|
||||
|
||||
func getErrors(ctx *macaron.Context) Errors {
|
||||
return ctx.GetVal(reflect.TypeOf(Errors{})).Interface().(Errors)
|
||||
}
|
||||
|
||||
type (
|
||||
// Implement the Validator interface to define your own input
|
||||
// validation before the request even gets to your application.
|
||||
// The Validate method will be executed during the validation phase.
|
||||
Validator interface {
|
||||
Validate(*macaron.Context, *Errors, i18n.Locale)
|
||||
}
|
||||
)
|
||||
|
||||
var (
|
||||
// Maximum amount of memory to use when parsing a multipart form.
|
||||
// Set this to whatever value you prefer; default is 10 MB.
|
||||
MaxMemory = int64(1024 * 1024 * 10)
|
||||
)
|
||||
|
||||
// Errors represents the contract of the response body when the
|
||||
// binding step fails before getting to the application.
|
||||
type Errors struct {
|
||||
Overall map[string]string `json:"overall"`
|
||||
Fields map[string]string `json:"fields"`
|
||||
}
|
||||
|
||||
// Total errors is the sum of errors with the request overall
|
||||
// and errors on individual fields.
|
||||
func (err Errors) Count() int {
|
||||
return len(err.Overall) + len(err.Fields)
|
||||
}
|
||||
|
||||
func (this *Errors) Combine(other Errors) {
|
||||
for key, val := range other.Fields {
|
||||
if _, exists := this.Fields[key]; !exists {
|
||||
this.Fields[key] = val
|
||||
}
|
||||
}
|
||||
for key, val := range other.Overall {
|
||||
if _, exists := this.Overall[key]; !exists {
|
||||
this.Overall[key] = val
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const (
|
||||
BindingRequireError string = "Required"
|
||||
BindingAlphaDashError string = "AlphaDash"
|
||||
BindingAlphaDashDotError string = "AlphaDashDot"
|
||||
BindingMinSizeError string = "MinSize"
|
||||
BindingMaxSizeError string = "MaxSize"
|
||||
BindingEmailError string = "Email"
|
||||
BindingUrlError string = "Url"
|
||||
BindingDeserializationError string = "DeserializationError"
|
||||
BindingIntegerTypeError string = "IntegerTypeError"
|
||||
BindingBooleanTypeError string = "BooleanTypeError"
|
||||
BindingFloatTypeError string = "FloatTypeError"
|
||||
)
|
||||
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