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-rw-r--r--vendor/github.com/gorilla/schema/.travis.yml18
-rw-r--r--vendor/github.com/gorilla/schema/LICENSE27
-rw-r--r--vendor/github.com/gorilla/schema/README.md90
-rw-r--r--vendor/github.com/gorilla/schema/cache.go305
-rw-r--r--vendor/github.com/gorilla/schema/converter.go145
-rw-r--r--vendor/github.com/gorilla/schema/decoder.go504
-rw-r--r--vendor/github.com/gorilla/schema/doc.go148
-rw-r--r--vendor/github.com/gorilla/schema/encoder.go195
8 files changed, 1432 insertions, 0 deletions
diff --git a/vendor/github.com/gorilla/schema/.travis.yml b/vendor/github.com/gorilla/schema/.travis.yml
new file mode 100644
index 000000000..5f51dce4e
--- /dev/null
+++ b/vendor/github.com/gorilla/schema/.travis.yml
@@ -0,0 +1,18 @@
+language: go
+sudo: false
+
+matrix:
+ include:
+ - go: 1.5
+ - go: 1.6
+ - go: 1.7
+ - go: 1.8
+ - go: tip
+ allow_failures:
+ - go: tip
+
+script:
+ - go get -t -v ./...
+ - diff -u <(echo -n) <(gofmt -d .)
+ - go vet $(go list ./... | grep -v /vendor/)
+ - go test -v -race ./...
diff --git a/vendor/github.com/gorilla/schema/LICENSE b/vendor/github.com/gorilla/schema/LICENSE
new file mode 100644
index 000000000..0e5fb8728
--- /dev/null
+++ b/vendor/github.com/gorilla/schema/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c) 2012 Rodrigo Moraes. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+ * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+ * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/github.com/gorilla/schema/README.md b/vendor/github.com/gorilla/schema/README.md
new file mode 100644
index 000000000..aefdd6699
--- /dev/null
+++ b/vendor/github.com/gorilla/schema/README.md
@@ -0,0 +1,90 @@
+schema
+======
+[![GoDoc](https://godoc.org/github.com/gorilla/schema?status.svg)](https://godoc.org/github.com/gorilla/schema) [![Build Status](https://travis-ci.org/gorilla/schema.png?branch=master)](https://travis-ci.org/gorilla/schema)
+[![Sourcegraph](https://sourcegraph.com/github.com/gorilla/schema/-/badge.svg)](https://sourcegraph.com/github.com/gorilla/schema?badge)
+
+
+Package gorilla/schema converts structs to and from form values.
+
+## Example
+
+Here's a quick example: we parse POST form values and then decode them into a struct:
+
+```go
+// Set a Decoder instance as a package global, because it caches
+// meta-data about structs, and an instance can be shared safely.
+var decoder = schema.NewDecoder()
+
+type Person struct {
+ Name string
+ Phone string
+}
+
+func MyHandler(w http.ResponseWriter, r *http.Request) {
+ err := r.ParseForm()
+ if err != nil {
+ // Handle error
+ }
+
+ var person Person
+
+ // r.PostForm is a map of our POST form values
+ err = decoder.Decode(&person, r.PostForm)
+ if err != nil {
+ // Handle error
+ }
+
+ // Do something with person.Name or person.Phone
+}
+```
+
+Conversely, contents of a struct can be encoded into form values. Here's a variant of the previous example using the Encoder:
+
+```go
+var encoder = schema.NewEncoder()
+
+func MyHttpRequest() {
+ person := Person{"Jane Doe", "555-5555"}
+ form := url.Values{}
+
+ err := encoder.Encode(person, form)
+
+ if err != nil {
+ // Handle error
+ }
+
+ // Use form values, for example, with an http client
+ client := new(http.Client)
+ res, err := client.PostForm("http://my-api.test", form)
+}
+
+```
+
+To define custom names for fields, use a struct tag "schema". To not populate certain fields, use a dash for the name and it will be ignored:
+
+```go
+type Person struct {
+ Name string `schema:"name,required"` // custom name, must be supplied
+ Phone string `schema:"phone"` // custom name
+ Admin bool `schema:"-"` // this field is never set
+}
+```
+
+The supported field types in the struct are:
+
+* bool
+* float variants (float32, float64)
+* int variants (int, int8, int16, int32, int64)
+* string
+* uint variants (uint, uint8, uint16, uint32, uint64)
+* struct
+* a pointer to one of the above types
+* a slice or a pointer to a slice of one of the above types
+
+Unsupported types are simply ignored, however custom types can be registered to be converted.
+
+More examples are available on the Gorilla website: https://www.gorillatoolkit.org/pkg/schema
+
+## License
+
+BSD licensed. See the LICENSE file for details.
diff --git a/vendor/github.com/gorilla/schema/cache.go b/vendor/github.com/gorilla/schema/cache.go
new file mode 100644
index 000000000..0746c1202
--- /dev/null
+++ b/vendor/github.com/gorilla/schema/cache.go
@@ -0,0 +1,305 @@
+// Copyright 2012 The Gorilla Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package schema
+
+import (
+ "errors"
+ "reflect"
+ "strconv"
+ "strings"
+ "sync"
+)
+
+var invalidPath = errors.New("schema: invalid path")
+
+// newCache returns a new cache.
+func newCache() *cache {
+ c := cache{
+ m: make(map[reflect.Type]*structInfo),
+ regconv: make(map[reflect.Type]Converter),
+ tag: "schema",
+ }
+ return &c
+}
+
+// cache caches meta-data about a struct.
+type cache struct {
+ l sync.RWMutex
+ m map[reflect.Type]*structInfo
+ regconv map[reflect.Type]Converter
+ tag string
+}
+
+// registerConverter registers a converter function for a custom type.
+func (c *cache) registerConverter(value interface{}, converterFunc Converter) {
+ c.regconv[reflect.TypeOf(value)] = converterFunc
+}
+
+// parsePath parses a path in dotted notation verifying that it is a valid
+// path to a struct field.
+//
+// It returns "path parts" which contain indices to fields to be used by
+// reflect.Value.FieldByString(). Multiple parts are required for slices of
+// structs.
+func (c *cache) parsePath(p string, t reflect.Type) ([]pathPart, error) {
+ var struc *structInfo
+ var field *fieldInfo
+ var index64 int64
+ var err error
+ parts := make([]pathPart, 0)
+ path := make([]string, 0)
+ keys := strings.Split(p, ".")
+ for i := 0; i < len(keys); i++ {
+ if t.Kind() != reflect.Struct {
+ return nil, invalidPath
+ }
+ if struc = c.get(t); struc == nil {
+ return nil, invalidPath
+ }
+ if field = struc.get(keys[i]); field == nil {
+ return nil, invalidPath
+ }
+ // Valid field. Append index.
+ path = append(path, field.name)
+ if field.isSliceOfStructs && (!field.unmarshalerInfo.IsValid || (field.unmarshalerInfo.IsValid && field.unmarshalerInfo.IsSliceElement)) {
+ // Parse a special case: slices of structs.
+ // i+1 must be the slice index.
+ //
+ // Now that struct can implements TextUnmarshaler interface,
+ // we don't need to force the struct's fields to appear in the path.
+ // So checking i+2 is not necessary anymore.
+ i++
+ if i+1 > len(keys) {
+ return nil, invalidPath
+ }
+ if index64, err = strconv.ParseInt(keys[i], 10, 0); err != nil {
+ return nil, invalidPath
+ }
+ parts = append(parts, pathPart{
+ path: path,
+ field: field,
+ index: int(index64),
+ })
+ path = make([]string, 0)
+
+ // Get the next struct type, dropping ptrs.
+ if field.typ.Kind() == reflect.Ptr {
+ t = field.typ.Elem()
+ } else {
+ t = field.typ
+ }
+ if t.Kind() == reflect.Slice {
+ t = t.Elem()
+ if t.Kind() == reflect.Ptr {
+ t = t.Elem()
+ }
+ }
+ } else if field.typ.Kind() == reflect.Ptr {
+ t = field.typ.Elem()
+ } else {
+ t = field.typ
+ }
+ }
+ // Add the remaining.
+ parts = append(parts, pathPart{
+ path: path,
+ field: field,
+ index: -1,
+ })
+ return parts, nil
+}
+
+// get returns a cached structInfo, creating it if necessary.
+func (c *cache) get(t reflect.Type) *structInfo {
+ c.l.RLock()
+ info := c.m[t]
+ c.l.RUnlock()
+ if info == nil {
+ info = c.create(t, "")
+ c.l.Lock()
+ c.m[t] = info
+ c.l.Unlock()
+ }
+ return info
+}
+
+// create creates a structInfo with meta-data about a struct.
+func (c *cache) create(t reflect.Type, parentAlias string) *structInfo {
+ info := &structInfo{}
+ var anonymousInfos []*structInfo
+ for i := 0; i < t.NumField(); i++ {
+ if f := c.createField(t.Field(i), parentAlias); f != nil {
+ info.fields = append(info.fields, f)
+ if ft := indirectType(f.typ); ft.Kind() == reflect.Struct && f.isAnonymous {
+ anonymousInfos = append(anonymousInfos, c.create(ft, f.canonicalAlias))
+ }
+ }
+ }
+ for i, a := range anonymousInfos {
+ others := []*structInfo{info}
+ others = append(others, anonymousInfos[:i]...)
+ others = append(others, anonymousInfos[i+1:]...)
+ for _, f := range a.fields {
+ if !containsAlias(others, f.alias) {
+ info.fields = append(info.fields, f)
+ }
+ }
+ }
+ return info
+}
+
+// createField creates a fieldInfo for the given field.
+func (c *cache) createField(field reflect.StructField, parentAlias string) *fieldInfo {
+ alias, options := fieldAlias(field, c.tag)
+ if alias == "-" {
+ // Ignore this field.
+ return nil
+ }
+ canonicalAlias := alias
+ if parentAlias != "" {
+ canonicalAlias = parentAlias + "." + alias
+ }
+ // Check if the type is supported and don't cache it if not.
+ // First let's get the basic type.
+ isSlice, isStruct := false, false
+ ft := field.Type
+ m := isTextUnmarshaler(reflect.Zero(ft))
+ if ft.Kind() == reflect.Ptr {
+ ft = ft.Elem()
+ }
+ if isSlice = ft.Kind() == reflect.Slice; isSlice {
+ ft = ft.Elem()
+ if ft.Kind() == reflect.Ptr {
+ ft = ft.Elem()
+ }
+ }
+ if ft.Kind() == reflect.Array {
+ ft = ft.Elem()
+ if ft.Kind() == reflect.Ptr {
+ ft = ft.Elem()
+ }
+ }
+ if isStruct = ft.Kind() == reflect.Struct; !isStruct {
+ if c.converter(ft) == nil && builtinConverters[ft.Kind()] == nil {
+ // Type is not supported.
+ return nil
+ }
+ }
+
+ return &fieldInfo{
+ typ: field.Type,
+ name: field.Name,
+ alias: alias,
+ canonicalAlias: canonicalAlias,
+ unmarshalerInfo: m,
+ isSliceOfStructs: isSlice && isStruct,
+ isAnonymous: field.Anonymous,
+ isRequired: options.Contains("required"),
+ }
+}
+
+// converter returns the converter for a type.
+func (c *cache) converter(t reflect.Type) Converter {
+ return c.regconv[t]
+}
+
+// ----------------------------------------------------------------------------
+
+type structInfo struct {
+ fields []*fieldInfo
+}
+
+func (i *structInfo) get(alias string) *fieldInfo {
+ for _, field := range i.fields {
+ if strings.EqualFold(field.alias, alias) {
+ return field
+ }
+ }
+ return nil
+}
+
+func containsAlias(infos []*structInfo, alias string) bool {
+ for _, info := range infos {
+ if info.get(alias) != nil {
+ return true
+ }
+ }
+ return false
+}
+
+type fieldInfo struct {
+ typ reflect.Type
+ // name is the field name in the struct.
+ name string
+ alias string
+ // canonicalAlias is almost the same as the alias, but is prefixed with
+ // an embedded struct field alias in dotted notation if this field is
+ // promoted from the struct.
+ // For instance, if the alias is "N" and this field is an embedded field
+ // in a struct "X", canonicalAlias will be "X.N".
+ canonicalAlias string
+ // unmarshalerInfo contains information regarding the
+ // encoding.TextUnmarshaler implementation of the field type.
+ unmarshalerInfo unmarshaler
+ // isSliceOfStructs indicates if the field type is a slice of structs.
+ isSliceOfStructs bool
+ // isAnonymous indicates whether the field is embedded in the struct.
+ isAnonymous bool
+ isRequired bool
+}
+
+func (f *fieldInfo) paths(prefix string) []string {
+ if f.alias == f.canonicalAlias {
+ return []string{prefix + f.alias}
+ }
+ return []string{prefix + f.alias, prefix + f.canonicalAlias}
+}
+
+type pathPart struct {
+ field *fieldInfo
+ path []string // path to the field: walks structs using field names.
+ index int // struct index in slices of structs.
+}
+
+// ----------------------------------------------------------------------------
+
+func indirectType(typ reflect.Type) reflect.Type {
+ if typ.Kind() == reflect.Ptr {
+ return typ.Elem()
+ }
+ return typ
+}
+
+// fieldAlias parses a field tag to get a field alias.
+func fieldAlias(field reflect.StructField, tagName string) (alias string, options tagOptions) {
+ if tag := field.Tag.Get(tagName); tag != "" {
+ alias, options = parseTag(tag)
+ }
+ if alias == "" {
+ alias = field.Name
+ }
+ return alias, options
+}
+
+// tagOptions is the string following a comma in a struct field's tag, or
+// the empty string. It does not include the leading comma.
+type tagOptions []string
+
+// parseTag splits a struct field's url tag into its name and comma-separated
+// options.
+func parseTag(tag string) (string, tagOptions) {
+ s := strings.Split(tag, ",")
+ return s[0], s[1:]
+}
+
+// Contains checks whether the tagOptions contains the specified option.
+func (o tagOptions) Contains(option string) bool {
+ for _, s := range o {
+ if s == option {
+ return true
+ }
+ }
+ return false
+}
diff --git a/vendor/github.com/gorilla/schema/converter.go b/vendor/github.com/gorilla/schema/converter.go
new file mode 100644
index 000000000..4f2116a15
--- /dev/null
+++ b/vendor/github.com/gorilla/schema/converter.go
@@ -0,0 +1,145 @@
+// Copyright 2012 The Gorilla Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package schema
+
+import (
+ "reflect"
+ "strconv"
+)
+
+type Converter func(string) reflect.Value
+
+var (
+ invalidValue = reflect.Value{}
+ boolType = reflect.Bool
+ float32Type = reflect.Float32
+ float64Type = reflect.Float64
+ intType = reflect.Int
+ int8Type = reflect.Int8
+ int16Type = reflect.Int16
+ int32Type = reflect.Int32
+ int64Type = reflect.Int64
+ stringType = reflect.String
+ uintType = reflect.Uint
+ uint8Type = reflect.Uint8
+ uint16Type = reflect.Uint16
+ uint32Type = reflect.Uint32
+ uint64Type = reflect.Uint64
+)
+
+// Default converters for basic types.
+var builtinConverters = map[reflect.Kind]Converter{
+ boolType: convertBool,
+ float32Type: convertFloat32,
+ float64Type: convertFloat64,
+ intType: convertInt,
+ int8Type: convertInt8,
+ int16Type: convertInt16,
+ int32Type: convertInt32,
+ int64Type: convertInt64,
+ stringType: convertString,
+ uintType: convertUint,
+ uint8Type: convertUint8,
+ uint16Type: convertUint16,
+ uint32Type: convertUint32,
+ uint64Type: convertUint64,
+}
+
+func convertBool(value string) reflect.Value {
+ if value == "on" {
+ return reflect.ValueOf(true)
+ } else if v, err := strconv.ParseBool(value); err == nil {
+ return reflect.ValueOf(v)
+ }
+ return invalidValue
+}
+
+func convertFloat32(value string) reflect.Value {
+ if v, err := strconv.ParseFloat(value, 32); err == nil {
+ return reflect.ValueOf(float32(v))
+ }
+ return invalidValue
+}
+
+func convertFloat64(value string) reflect.Value {
+ if v, err := strconv.ParseFloat(value, 64); err == nil {
+ return reflect.ValueOf(v)
+ }
+ return invalidValue
+}
+
+func convertInt(value string) reflect.Value {
+ if v, err := strconv.ParseInt(value, 10, 0); err == nil {
+ return reflect.ValueOf(int(v))
+ }
+ return invalidValue
+}
+
+func convertInt8(value string) reflect.Value {
+ if v, err := strconv.ParseInt(value, 10, 8); err == nil {
+ return reflect.ValueOf(int8(v))
+ }
+ return invalidValue
+}
+
+func convertInt16(value string) reflect.Value {
+ if v, err := strconv.ParseInt(value, 10, 16); err == nil {
+ return reflect.ValueOf(int16(v))
+ }
+ return invalidValue
+}
+
+func convertInt32(value string) reflect.Value {
+ if v, err := strconv.ParseInt(value, 10, 32); err == nil {
+ return reflect.ValueOf(int32(v))
+ }
+ return invalidValue
+}
+
+func convertInt64(value string) reflect.Value {
+ if v, err := strconv.ParseInt(value, 10, 64); err == nil {
+ return reflect.ValueOf(v)
+ }
+ return invalidValue
+}
+
+func convertString(value string) reflect.Value {
+ return reflect.ValueOf(value)
+}
+
+func convertUint(value string) reflect.Value {
+ if v, err := strconv.ParseUint(value, 10, 0); err == nil {
+ return reflect.ValueOf(uint(v))
+ }
+ return invalidValue
+}
+
+func convertUint8(value string) reflect.Value {
+ if v, err := strconv.ParseUint(value, 10, 8); err == nil {
+ return reflect.ValueOf(uint8(v))
+ }
+ return invalidValue
+}
+
+func convertUint16(value string) reflect.Value {
+ if v, err := strconv.ParseUint(value, 10, 16); err == nil {
+ return reflect.ValueOf(uint16(v))
+ }
+ return invalidValue
+}
+
+func convertUint32(value string) reflect.Value {
+ if v, err := strconv.ParseUint(value, 10, 32); err == nil {
+ return reflect.ValueOf(uint32(v))
+ }
+ return invalidValue
+}
+
+func convertUint64(value string) reflect.Value {
+ if v, err := strconv.ParseUint(value, 10, 64); err == nil {
+ return reflect.ValueOf(v)
+ }
+ return invalidValue
+}
diff --git a/vendor/github.com/gorilla/schema/decoder.go b/vendor/github.com/gorilla/schema/decoder.go
new file mode 100644
index 000000000..5afbd921f
--- /dev/null
+++ b/vendor/github.com/gorilla/schema/decoder.go
@@ -0,0 +1,504 @@
+// Copyright 2012 The Gorilla Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package schema
+
+import (
+ "encoding"
+ "errors"
+ "fmt"
+ "reflect"
+ "strings"
+)
+
+// NewDecoder returns a new Decoder.
+func NewDecoder() *Decoder {
+ return &Decoder{cache: newCache()}
+}
+
+// Decoder decodes values from a map[string][]string to a struct.
+type Decoder struct {
+ cache *cache
+ zeroEmpty bool
+ ignoreUnknownKeys bool
+}
+
+// SetAliasTag changes the tag used to locate custom field aliases.
+// The default tag is "schema".
+func (d *Decoder) SetAliasTag(tag string) {
+ d.cache.tag = tag
+}
+
+// ZeroEmpty controls the behaviour when the decoder encounters empty values
+// in a map.
+// If z is true and a key in the map has the empty string as a value
+// then the corresponding struct field is set to the zero value.
+// If z is false then empty strings are ignored.
+//
+// The default value is false, that is empty values do not change
+// the value of the struct field.
+func (d *Decoder) ZeroEmpty(z bool) {
+ d.zeroEmpty = z
+}
+
+// IgnoreUnknownKeys controls the behaviour when the decoder encounters unknown
+// keys in the map.
+// If i is true and an unknown field is encountered, it is ignored. This is
+// similar to how unknown keys are handled by encoding/json.
+// If i is false then Decode will return an error. Note that any valid keys
+// will still be decoded in to the target struct.
+//
+// To preserve backwards compatibility, the default value is false.
+func (d *Decoder) IgnoreUnknownKeys(i bool) {
+ d.ignoreUnknownKeys = i
+}
+
+// RegisterConverter registers a converter function for a custom type.
+func (d *Decoder) RegisterConverter(value interface{}, converterFunc Converter) {
+ d.cache.registerConverter(value, converterFunc)
+}
+
+// Decode decodes a map[string][]string to a struct.
+//
+// The first parameter must be a pointer to a struct.
+//
+// The second parameter is a map, typically url.Values from an HTTP request.
+// Keys are "paths" in dotted notation to the struct fields and nested structs.
+//
+// See the package documentation for a full explanation of the mechanics.
+func (d *Decoder) Decode(dst interface{}, src map[string][]string) error {
+ v := reflect.ValueOf(dst)
+ if v.Kind() != reflect.Ptr || v.Elem().Kind() != reflect.Struct {
+ return errors.New("schema: interface must be a pointer to struct")
+ }
+ v = v.Elem()
+ t := v.Type()
+ errors := MultiError{}
+ for path, values := range src {
+ if parts, err := d.cache.parsePath(path, t); err == nil {
+ if err = d.decode(v, path, parts, values); err != nil {
+ errors[path] = err
+ }
+ } else if !d.ignoreUnknownKeys {
+ errors[path] = UnknownKeyError{Key: path}
+ }
+ }
+ errors.merge(d.checkRequired(t, src))
+ if len(errors) > 0 {
+ return errors
+ }
+ return nil
+}
+
+// checkRequired checks whether required fields are empty
+//
+// check type t recursively if t has struct fields.
+//
+// src is the source map for decoding, we use it here to see if those required fields are included in src
+func (d *Decoder) checkRequired(t reflect.Type, src map[string][]string) MultiError {
+ m, errs := d.findRequiredFields(t, "", "")
+ for key, fields := range m {
+ if isEmptyFields(fields, src) {
+ errs[key] = EmptyFieldError{Key: key}
+ }
+ }
+ return errs
+}
+
+// findRequiredFields recursively searches the struct type t for required fields.
+//
+// canonicalPrefix and searchPrefix are used to resolve full paths in dotted notation
+// for nested struct fields. canonicalPrefix is a complete path which never omits
+// any embedded struct fields. searchPrefix is a user-friendly path which may omit
+// some embedded struct fields to point promoted fields.
+func (d *Decoder) findRequiredFields(t reflect.Type, canonicalPrefix, searchPrefix string) (map[string][]fieldWithPrefix, MultiError) {
+ struc := d.cache.get(t)
+ if struc == nil {
+ // unexpect, cache.get never return nil
+ return nil, MultiError{canonicalPrefix + "*": errors.New("cache fail")}
+ }
+
+ m := map[string][]fieldWithPrefix{}
+ errs := MultiError{}
+ for _, f := range struc.fields {
+ if f.typ.Kind() == reflect.Struct {
+ fcprefix := canonicalPrefix + f.canonicalAlias + "."
+ for _, fspath := range f.paths(searchPrefix) {
+ fm, ferrs := d.findRequiredFields(f.typ, fcprefix, fspath+".")
+ for key, fields := range fm {
+ m[key] = append(m[key], fields...)
+ }
+ errs.merge(ferrs)
+ }
+ }
+ if f.isRequired {
+ key := canonicalPrefix + f.canonicalAlias
+ m[key] = append(m[key], fieldWithPrefix{
+ fieldInfo: f,
+ prefix: searchPrefix,
+ })
+ }
+ }
+ return m, errs
+}
+
+type fieldWithPrefix struct {
+ *fieldInfo
+ prefix string
+}
+
+// isEmptyFields returns true if all of specified fields are empty.
+func isEmptyFields(fields []fieldWithPrefix, src map[string][]string) bool {
+ for _, f := range fields {
+ for _, path := range f.paths(f.prefix) {
+ if !isEmpty(f.typ, src[path]) {
+ return false
+ }
+ }
+ }
+ return true
+}
+
+// isEmpty returns true if value is empty for specific type
+func isEmpty(t reflect.Type, value []string) bool {
+ if len(value) == 0 {
+ return true
+ }
+ switch t.Kind() {
+ case boolType, float32Type, float64Type, intType, int8Type, int32Type, int64Type, stringType, uint8Type, uint16Type, uint32Type, uint64Type:
+ return len(value[0]) == 0
+ }
+ return false
+}
+
+// decode fills a struct field using a parsed path.
+func (d *Decoder) decode(v reflect.Value, path string, parts []pathPart, values []string) error {
+ // Get the field walking the struct fields by index.
+ for _, name := range parts[0].path {
+ if v.Type().Kind() == reflect.Ptr {
+ if v.IsNil() {
+ v.Set(reflect.New(v.Type().Elem()))
+ }
+ v = v.Elem()
+ }
+ v = v.FieldByName(name)
+ }
+ // Don't even bother for unexported fields.
+ if !v.CanSet() {
+ return nil
+ }
+
+ // Dereference if needed.
+ t := v.Type()
+ if t.Kind() == reflect.Ptr {
+ t = t.Elem()
+ if v.IsNil() {
+ v.Set(reflect.New(t))
+ }
+ v = v.Elem()
+ }
+
+ // Slice of structs. Let's go recursive.
+ if len(parts) > 1 {
+ idx := parts[0].index
+ if v.IsNil() || v.Len() < idx+1 {
+ value := reflect.MakeSlice(t, idx+1, idx+1)
+ if v.Len() < idx+1 {
+ // Resize it.
+ reflect.Copy(value, v)
+ }
+ v.Set(value)
+ }
+ return d.decode(v.Index(idx), path, parts[1:], values)
+ }
+
+ // Get the converter early in case there is one for a slice type.
+ conv := d.cache.converter(t)
+ m := isTextUnmarshaler(v)
+ if conv == nil && t.Kind() == reflect.Slice && m.IsSliceElement {
+ var items []reflect.Value
+ elemT := t.Elem()
+ isPtrElem := elemT.Kind() == reflect.Ptr
+ if isPtrElem {
+ elemT = elemT.Elem()
+ }
+
+ // Try to get a converter for the element type.
+ conv := d.cache.converter(elemT)
+ if conv == nil {
+ conv = builtinConverters[elemT.Kind()]
+ if conv == nil {
+ // As we are not dealing with slice of structs here, we don't need to check if the type
+ // implements TextUnmarshaler interface
+ return fmt.Errorf("schema: converter not found for %v", elemT)
+ }
+ }
+
+ for key, value := range values {
+ if value == "" {
+ if d.zeroEmpty {
+ items = append(items, reflect.Zero(elemT))
+ }
+ } else if m.IsValid {
+ u := reflect.New(elemT)
+ if m.IsSliceElementPtr {
+ u = reflect.New(reflect.PtrTo(elemT).Elem())
+ }
+ if err := u.Interface().(encoding.TextUnmarshaler).UnmarshalText([]byte(value)); err != nil {
+ return ConversionError{
+ Key: path,
+ Type: t,
+ Index: key,
+ Err: err,
+ }
+ }
+ if m.IsSliceElementPtr {
+ items = append(items, u.Elem().Addr())
+ } else if u.Kind() == reflect.Ptr {
+ items = append(items, u.Elem())
+ } else {
+ items = append(items, u)
+ }
+ } else if item := conv(value); item.IsValid() {
+ if isPtrElem {
+ ptr := reflect.New(elemT)
+ ptr.Elem().Set(item)
+ item = ptr
+ }
+ if item.Type() != elemT && !isPtrElem {
+ item = item.Convert(elemT)
+ }
+ items = append(items, item)
+ } else {
+ if strings.Contains(value, ",") {
+ values := strings.Split(value, ",")
+ for _, value := range values {
+ if value == "" {
+ if d.zeroEmpty {
+ items = append(items, reflect.Zero(elemT))
+ }
+ } else if item := conv(value); item.IsValid() {
+ if isPtrElem {
+ ptr := reflect.New(elemT)
+ ptr.Elem().Set(item)
+ item = ptr
+ }
+ if item.Type() != elemT && !isPtrElem {
+ item = item.Convert(elemT)
+ }
+ items = append(items, item)
+ } else {
+ return ConversionError{
+ Key: path,
+ Type: elemT,
+ Index: key,
+ }
+ }
+ }
+ } else {
+ return ConversionError{
+ Key: path,
+ Type: elemT,
+ Index: key,
+ }
+ }
+ }
+ }
+ value := reflect.Append(reflect.MakeSlice(t, 0, 0), items...)
+ v.Set(value)
+ } else {
+ val := ""
+ // Use the last value provided if any values were provided
+ if len(values) > 0 {
+ val = values[len(values)-1]
+ }
+
+ if conv != nil {
+ if value := conv(val); value.IsValid() {
+ v.Set(value.Convert(t))
+ } else {
+ return ConversionError{
+ Key: path,
+ Type: t,
+ Index: -1,
+ }
+ }
+ } else if m.IsValid {
+ if m.IsPtr {
+ u := reflect.New(v.Type())
+ if err := u.Interface().(encoding.TextUnmarshaler).UnmarshalText([]byte(val)); err != nil {
+ return ConversionError{
+ Key: path,
+ Type: t,
+ Index: -1,
+ Err: err,
+ }
+ }
+ v.Set(reflect.Indirect(u))
+ } else {
+ // If the value implements the encoding.TextUnmarshaler interface
+ // apply UnmarshalText as the converter
+ if err := m.Unmarshaler.UnmarshalText([]byte(val)); err != nil {
+ return ConversionError{
+ Key: path,
+ Type: t,
+ Index: -1,
+ Err: err,
+ }
+ }
+ }
+ } else if val == "" {
+ if d.zeroEmpty {
+ v.Set(reflect.Zero(t))
+ }
+ } else if conv := builtinConverters[t.Kind()]; conv != nil {
+ if value := conv(val); value.IsValid() {
+ v.Set(value.Convert(t))
+ } else {
+ return ConversionError{
+ Key: path,
+ Type: t,
+ Index: -1,
+ }
+ }
+ } else {
+ return fmt.Errorf("schema: converter not found for %v", t)
+ }
+ }
+ return nil
+}
+
+func isTextUnmarshaler(v reflect.Value) unmarshaler {
+ // Create a new unmarshaller instance
+ m := unmarshaler{}
+ if m.Unmarshaler, m.IsValid = v.Interface().(encoding.TextUnmarshaler); m.IsValid {
+ return m
+ }
+ // As the UnmarshalText function should be applied to the pointer of the
+ // type, we check that type to see if it implements the necessary
+ // method.
+ if m.Unmarshaler, m.IsValid = reflect.New(v.Type()).Interface().(encoding.TextUnmarshaler); m.IsValid {
+ m.IsPtr = true
+ return m
+ }
+
+ // if v is []T or *[]T create new T
+ t := v.Type()
+ if t.Kind() == reflect.Ptr {
+ t = t.Elem()
+ }
+ if t.Kind() == reflect.Slice {
+ // Check if the slice implements encoding.TextUnmarshaller
+ if m.Unmarshaler, m.IsValid = v.Interface().(encoding.TextUnmarshaler); m.IsValid {
+ return m
+ }
+ // If t is a pointer slice, check if its elements implement
+ // encoding.TextUnmarshaler
+ m.IsSliceElement = true
+ if t = t.Elem(); t.Kind() == reflect.Ptr {
+ t = reflect.PtrTo(t.Elem())
+ v = reflect.Zero(t)
+ m.IsSliceElementPtr = true
+ m.Unmarshaler, m.IsValid = v.Interface().(encoding.TextUnmarshaler)
+ return m
+ }
+ }
+
+ v = reflect.New(t)
+ m.Unmarshaler, m.IsValid = v.Interface().(encoding.TextUnmarshaler)
+ return m
+}
+
+// TextUnmarshaler helpers ----------------------------------------------------
+// unmarshaller contains information about a TextUnmarshaler type
+type unmarshaler struct {
+ Unmarshaler encoding.TextUnmarshaler
+ // IsValid indicates whether the resolved type indicated by the other
+ // flags implements the encoding.TextUnmarshaler interface.
+ IsValid bool
+ // IsPtr indicates that the resolved type is the pointer of the original
+ // type.
+ IsPtr bool
+ // IsSliceElement indicates that the resolved type is a slice element of
+ // the original type.
+ IsSliceElement bool
+ // IsSliceElementPtr indicates that the resolved type is a pointer to a
+ // slice element of the original type.
+ IsSliceElementPtr bool
+}
+
+// Errors ---------------------------------------------------------------------
+
+// ConversionError stores information about a failed conversion.
+type ConversionError struct {
+ Key string // key from the source map.
+ Type reflect.Type // expected type of elem
+ Index int // index for multi-value fields; -1 for single-value fields.
+ Err error // low-level error (when it exists)
+}
+
+func (e ConversionError) Error() string {
+ var output string
+
+ if e.Index < 0 {
+ output = fmt.Sprintf("schema: error converting value for %q", e.Key)
+ } else {
+ output = fmt.Sprintf("schema: error converting value for index %d of %q",
+ e.Index, e.Key)
+ }
+
+ if e.Err != nil {
+ output = fmt.Sprintf("%s. Details: %s", output, e.Err)
+ }
+
+ return output
+}
+
+// UnknownKeyError stores information about an unknown key in the source map.
+type UnknownKeyError struct {
+ Key string // key from the source map.
+}
+
+func (e UnknownKeyError) Error() string {
+ return fmt.Sprintf("schema: invalid path %q", e.Key)
+}
+
+// EmptyFieldError stores information about an empty required field.
+type EmptyFieldError struct {
+ Key string // required key in the source map.
+}
+
+func (e EmptyFieldError) Error() string {
+ return fmt.Sprintf("%v is empty", e.Key)
+}
+
+// MultiError stores multiple decoding errors.
+//
+// Borrowed from the App Engine SDK.
+type MultiError map[string]error
+
+func (e MultiError) Error() string {
+ s := ""
+ for _, err := range e {
+ s = err.Error()
+ break
+ }
+ switch len(e) {
+ case 0:
+ return "(0 errors)"
+ case 1:
+ return s
+ case 2:
+ return s + " (and 1 other error)"
+ }
+ return fmt.Sprintf("%s (and %d other errors)", s, len(e)-1)
+}
+
+func (e MultiError) merge(errors MultiError) {
+ for key, err := range errors {
+ if e[key] == nil {
+ e[key] = err
+ }
+ }
+}
diff --git a/vendor/github.com/gorilla/schema/doc.go b/vendor/github.com/gorilla/schema/doc.go
new file mode 100644
index 000000000..aae9f33f9
--- /dev/null
+++ b/vendor/github.com/gorilla/schema/doc.go
@@ -0,0 +1,148 @@
+// Copyright 2012 The Gorilla Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package gorilla/schema fills a struct with form values.
+
+The basic usage is really simple. Given this struct:
+
+ type Person struct {
+ Name string
+ Phone string
+ }
+
+...we can fill it passing a map to the Decode() function:
+
+ values := map[string][]string{
+ "Name": {"John"},
+ "Phone": {"999-999-999"},
+ }
+ person := new(Person)
+ decoder := schema.NewDecoder()
+ decoder.Decode(person, values)
+
+This is just a simple example and it doesn't make a lot of sense to create
+the map manually. Typically it will come from a http.Request object and
+will be of type url.Values, http.Request.Form, or http.Request.MultipartForm:
+
+ func MyHandler(w http.ResponseWriter, r *http.Request) {
+ err := r.ParseForm()
+
+ if err != nil {
+ // Handle error
+ }
+
+ decoder := schema.NewDecoder()
+ // r.PostForm is a map of our POST form values
+ err := decoder.Decode(person, r.PostForm)
+
+ if err != nil {
+ // Handle error
+ }
+
+ // Do something with person.Name or person.Phone
+ }
+
+Note: it is a good idea to set a Decoder instance as a package global,
+because it caches meta-data about structs, and an instance can be shared safely:
+
+ var decoder = schema.NewDecoder()
+
+To define custom names for fields, use a struct tag "schema". To not populate
+certain fields, use a dash for the name and it will be ignored:
+
+ type Person struct {
+ Name string `schema:"name"` // custom name
+ Phone string `schema:"phone"` // custom name
+ Admin bool `schema:"-"` // this field is never set
+ }
+
+The supported field types in the destination struct are:
+
+ * bool
+ * float variants (float32, float64)
+ * int variants (int, int8, int16, int32, int64)
+ * string
+ * uint variants (uint, uint8, uint16, uint32, uint64)
+ * struct
+ * a pointer to one of the above types
+ * a slice or a pointer to a slice of one of the above types
+
+Non-supported types are simply ignored, however custom types can be registered
+to be converted.
+
+To fill nested structs, keys must use a dotted notation as the "path" for the
+field. So for example, to fill the struct Person below:
+
+ type Phone struct {
+ Label string
+ Number string
+ }
+
+ type Person struct {
+ Name string
+ Phone Phone
+ }
+
+...the source map must have the keys "Name", "Phone.Label" and "Phone.Number".
+This means that an HTML form to fill a Person struct must look like this:
+
+ <form>
+ <input type="text" name="Name">
+ <input type="text" name="Phone.Label">
+ <input type="text" name="Phone.Number">
+ </form>
+
+Single values are filled using the first value for a key from the source map.
+Slices are filled using all values for a key from the source map. So to fill
+a Person with multiple Phone values, like:
+
+ type Person struct {
+ Name string
+ Phones []Phone
+ }
+
+...an HTML form that accepts three Phone values would look like this:
+
+ <form>
+ <input type="text" name="Name">
+ <input type="text" name="Phones.0.Label">
+ <input type="text" name="Phones.0.Number">
+ <input type="text" name="Phones.1.Label">
+ <input type="text" name="Phones.1.Number">
+ <input type="text" name="Phones.2.Label">
+ <input type="text" name="Phones.2.Number">
+ </form>
+
+Notice that only for slices of structs the slice index is required.
+This is needed for disambiguation: if the nested struct also had a slice
+field, we could not translate multiple values to it if we did not use an
+index for the parent struct.
+
+There's also the possibility to create a custom type that implements the
+TextUnmarshaler interface, and in this case there's no need to register
+a converter, like:
+
+ type Person struct {
+ Emails []Email
+ }
+
+ type Email struct {
+ *mail.Address
+ }
+
+ func (e *Email) UnmarshalText(text []byte) (err error) {
+ e.Address, err = mail.ParseAddress(string(text))
+ return
+ }
+
+...an HTML form that accepts three Email values would look like this:
+
+ <form>
+ <input type="email" name="Emails.0">
+ <input type="email" name="Emails.1">
+ <input type="email" name="Emails.2">
+ </form>
+*/
+package schema
diff --git a/vendor/github.com/gorilla/schema/encoder.go b/vendor/github.com/gorilla/schema/encoder.go
new file mode 100644
index 000000000..bf1d511e6
--- /dev/null
+++ b/vendor/github.com/gorilla/schema/encoder.go
@@ -0,0 +1,195 @@
+package schema
+
+import (
+ "errors"
+ "fmt"
+ "reflect"
+ "strconv"
+)
+
+type encoderFunc func(reflect.Value) string
+
+// Encoder encodes values from a struct into url.Values.
+type Encoder struct {
+ cache *cache
+ regenc map[reflect.Type]encoderFunc
+}
+
+// NewEncoder returns a new Encoder with defaults.
+func NewEncoder() *Encoder {
+ return &Encoder{cache: newCache(), regenc: make(map[reflect.Type]encoderFunc)}
+}
+
+// Encode encodes a struct into map[string][]string.
+//
+// Intended for use with url.Values.
+func (e *Encoder) Encode(src interface{}, dst map[string][]string) error {
+ v := reflect.ValueOf(src)
+
+ return e.encode(v, dst)
+}
+
+// RegisterEncoder registers a converter for encoding a custom type.
+func (e *Encoder) RegisterEncoder(value interface{}, encoder func(reflect.Value) string) {
+ e.regenc[reflect.TypeOf(value)] = encoder
+}
+
+// SetAliasTag changes the tag used to locate custom field aliases.
+// The default tag is "schema".
+func (e *Encoder) SetAliasTag(tag string) {
+ e.cache.tag = tag
+}
+
+// isValidStructPointer test if input value is a valid struct pointer.
+func isValidStructPointer(v reflect.Value) bool {
+ return v.Type().Kind() == reflect.Ptr && v.Elem().IsValid() && v.Elem().Type().Kind() == reflect.Struct
+}
+
+func isZero(v reflect.Value) bool {
+ switch v.Kind() {
+ case reflect.Func:
+ case reflect.Map, reflect.Slice:
+ return v.IsNil() || v.Len() == 0
+ case reflect.Array:
+ z := true
+ for i := 0; i < v.Len(); i++ {
+ z = z && isZero(v.Index(i))
+ }
+ return z
+ case reflect.Struct:
+ z := true
+ for i := 0; i < v.NumField(); i++ {
+ z = z && isZero(v.Field(i))
+ }
+ return z
+ }
+ // Compare other types directly:
+ z := reflect.Zero(v.Type())
+ return v.Interface() == z.Interface()
+}
+
+func (e *Encoder) encode(v reflect.Value, dst map[string][]string) error {
+ if v.Kind() == reflect.Ptr {
+ v = v.Elem()
+ }
+ if v.Kind() != reflect.Struct {
+ return errors.New("schema: interface must be a struct")
+ }
+ t := v.Type()
+
+ errors := MultiError{}
+
+ for i := 0; i < v.NumField(); i++ {
+ name, opts := fieldAlias(t.Field(i), e.cache.tag)
+ if name == "-" {
+ continue
+ }
+
+ // Encode struct pointer types if the field is a valid pointer and a struct.
+ if isValidStructPointer(v.Field(i)) {
+ e.encode(v.Field(i).Elem(), dst)
+ continue
+ }
+
+ encFunc := typeEncoder(v.Field(i).Type(), e.regenc)
+
+ // Encode non-slice types and custom implementations immediately.
+ if encFunc != nil {
+ value := encFunc(v.Field(i))
+ if opts.Contains("omitempty") && isZero(v.Field(i)) {
+ continue
+ }
+
+ dst[name] = append(dst[name], value)
+ continue
+ }
+
+ if v.Field(i).Type().Kind() == reflect.Struct {
+ e.encode(v.Field(i), dst)
+ continue
+ }
+
+ if v.Field(i).Type().Kind() == reflect.Slice {
+ encFunc = typeEncoder(v.Field(i).Type().Elem(), e.regenc)
+ }
+
+ if encFunc == nil {
+ errors[v.Field(i).Type().String()] = fmt.Errorf("schema: encoder not found for %v", v.Field(i))
+ continue
+ }
+
+ // Encode a slice.
+ if v.Field(i).Len() == 0 && opts.Contains("omitempty") {
+ continue
+ }
+
+ dst[name] = []string{}
+ for j := 0; j < v.Field(i).Len(); j++ {
+ dst[name] = append(dst[name], encFunc(v.Field(i).Index(j)))
+ }
+ }
+
+ if len(errors) > 0 {
+ return errors
+ }
+ return nil
+}
+
+func typeEncoder(t reflect.Type, reg map[reflect.Type]encoderFunc) encoderFunc {
+ if f, ok := reg[t]; ok {
+ return f
+ }
+
+ switch t.Kind() {
+ case reflect.Bool:
+ return encodeBool
+ case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+ return encodeInt
+ case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+ return encodeUint
+ case reflect.Float32:
+ return encodeFloat32
+ case reflect.Float64:
+ return encodeFloat64
+ case reflect.Ptr:
+ f := typeEncoder(t.Elem(), reg)
+ return func(v reflect.Value) string {
+ if v.IsNil() {
+ return "null"
+ }
+ return f(v.Elem())
+ }
+ case reflect.String:
+ return encodeString
+ default:
+ return nil
+ }
+}
+
+func encodeBool(v reflect.Value) string {
+ return strconv.FormatBool(v.Bool())
+}
+
+func encodeInt(v reflect.Value) string {
+ return strconv.FormatInt(int64(v.Int()), 10)
+}
+
+func encodeUint(v reflect.Value) string {
+ return strconv.FormatUint(uint64(v.Uint()), 10)
+}
+
+func encodeFloat(v reflect.Value, bits int) string {
+ return strconv.FormatFloat(v.Float(), 'f', 6, bits)
+}
+
+func encodeFloat32(v reflect.Value) string {
+ return encodeFloat(v, 32)
+}
+
+func encodeFloat64(v reflect.Value) string {
+ return encodeFloat(v, 64)
+}
+
+func encodeString(v reflect.Value) string {
+ return v.String()
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-09-28 15:26:49 +0000