Serge Bazanski | cc25bdf | 2018-10-25 14:02:58 +0200 | [diff] [blame] | 1 | // Copyright 2015 go-swagger maintainers |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package validate |
| 16 | |
| 17 | import ( |
| 18 | "fmt" |
| 19 | "reflect" |
| 20 | |
| 21 | "github.com/go-openapi/errors" |
| 22 | "github.com/go-openapi/spec" |
| 23 | "github.com/go-openapi/strfmt" |
| 24 | ) |
| 25 | |
| 26 | // An EntityValidator is an interface for things that can validate entities |
| 27 | type EntityValidator interface { |
| 28 | Validate(interface{}) *Result |
| 29 | } |
| 30 | |
| 31 | type valueValidator interface { |
| 32 | SetPath(path string) |
| 33 | Applies(interface{}, reflect.Kind) bool |
| 34 | Validate(interface{}) *Result |
| 35 | } |
| 36 | |
| 37 | type itemsValidator struct { |
| 38 | items *spec.Items |
| 39 | root interface{} |
| 40 | path string |
| 41 | in string |
| 42 | validators []valueValidator |
| 43 | KnownFormats strfmt.Registry |
| 44 | } |
| 45 | |
| 46 | func newItemsValidator(path, in string, items *spec.Items, root interface{}, formats strfmt.Registry) *itemsValidator { |
| 47 | iv := &itemsValidator{path: path, in: in, items: items, root: root, KnownFormats: formats} |
| 48 | iv.validators = []valueValidator{ |
| 49 | &typeValidator{ |
| 50 | Type: spec.StringOrArray([]string{items.Type}), |
| 51 | Format: items.Format, |
| 52 | In: in, |
| 53 | Path: path, |
| 54 | }, |
| 55 | iv.stringValidator(), |
| 56 | iv.formatValidator(), |
| 57 | iv.numberValidator(), |
| 58 | iv.sliceValidator(), |
| 59 | iv.commonValidator(), |
| 60 | } |
| 61 | return iv |
| 62 | } |
| 63 | |
| 64 | func (i *itemsValidator) Validate(index int, data interface{}) *Result { |
| 65 | tpe := reflect.TypeOf(data) |
| 66 | kind := tpe.Kind() |
| 67 | mainResult := new(Result) |
| 68 | path := fmt.Sprintf("%s.%d", i.path, index) |
| 69 | |
| 70 | for _, validator := range i.validators { |
| 71 | validator.SetPath(path) |
| 72 | if validator.Applies(i.root, kind) { |
| 73 | result := validator.Validate(data) |
| 74 | mainResult.Merge(result) |
| 75 | mainResult.Inc() |
| 76 | if result != nil && result.HasErrors() { |
| 77 | return mainResult |
| 78 | } |
| 79 | } |
| 80 | } |
| 81 | return mainResult |
| 82 | } |
| 83 | |
| 84 | func (i *itemsValidator) commonValidator() valueValidator { |
| 85 | return &basicCommonValidator{ |
| 86 | In: i.in, |
| 87 | Default: i.items.Default, |
| 88 | Enum: i.items.Enum, |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | func (i *itemsValidator) sliceValidator() valueValidator { |
| 93 | return &basicSliceValidator{ |
| 94 | In: i.in, |
| 95 | Default: i.items.Default, |
| 96 | MaxItems: i.items.MaxItems, |
| 97 | MinItems: i.items.MinItems, |
| 98 | UniqueItems: i.items.UniqueItems, |
| 99 | Source: i.root, |
| 100 | Items: i.items.Items, |
| 101 | KnownFormats: i.KnownFormats, |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | func (i *itemsValidator) numberValidator() valueValidator { |
| 106 | return &numberValidator{ |
| 107 | In: i.in, |
| 108 | Default: i.items.Default, |
| 109 | MultipleOf: i.items.MultipleOf, |
| 110 | Maximum: i.items.Maximum, |
| 111 | ExclusiveMaximum: i.items.ExclusiveMaximum, |
| 112 | Minimum: i.items.Minimum, |
| 113 | ExclusiveMinimum: i.items.ExclusiveMinimum, |
| 114 | Type: i.items.Type, |
| 115 | Format: i.items.Format, |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | func (i *itemsValidator) stringValidator() valueValidator { |
| 120 | return &stringValidator{ |
| 121 | In: i.in, |
| 122 | Default: i.items.Default, |
| 123 | MaxLength: i.items.MaxLength, |
| 124 | MinLength: i.items.MinLength, |
| 125 | Pattern: i.items.Pattern, |
| 126 | AllowEmptyValue: false, |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | func (i *itemsValidator) formatValidator() valueValidator { |
| 131 | return &formatValidator{ |
| 132 | In: i.in, |
| 133 | //Default: i.items.Default, |
| 134 | Format: i.items.Format, |
| 135 | KnownFormats: i.KnownFormats, |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | type basicCommonValidator struct { |
| 140 | Path string |
| 141 | In string |
| 142 | Default interface{} |
| 143 | Enum []interface{} |
| 144 | } |
| 145 | |
| 146 | func (b *basicCommonValidator) SetPath(path string) { |
| 147 | b.Path = path |
| 148 | } |
| 149 | |
| 150 | func (b *basicCommonValidator) Applies(source interface{}, kind reflect.Kind) bool { |
| 151 | switch source.(type) { |
| 152 | case *spec.Parameter, *spec.Schema, *spec.Header: |
| 153 | return true |
| 154 | } |
| 155 | return false |
| 156 | } |
| 157 | |
| 158 | func (b *basicCommonValidator) Validate(data interface{}) (res *Result) { |
| 159 | if len(b.Enum) > 0 { |
| 160 | for _, enumValue := range b.Enum { |
| 161 | actualType := reflect.TypeOf(enumValue) |
| 162 | if actualType != nil { // Safeguard |
| 163 | expectedValue := reflect.ValueOf(data) |
| 164 | if expectedValue.IsValid() && expectedValue.Type().ConvertibleTo(actualType) { |
| 165 | if reflect.DeepEqual(expectedValue.Convert(actualType).Interface(), enumValue) { |
| 166 | return nil |
| 167 | } |
| 168 | } |
| 169 | } |
| 170 | } |
| 171 | return errorHelp.sErr(errors.EnumFail(b.Path, b.In, data, b.Enum)) |
| 172 | } |
| 173 | return nil |
| 174 | } |
| 175 | |
| 176 | // A HeaderValidator has very limited subset of validations to apply |
| 177 | type HeaderValidator struct { |
| 178 | name string |
| 179 | header *spec.Header |
| 180 | validators []valueValidator |
| 181 | KnownFormats strfmt.Registry |
| 182 | } |
| 183 | |
| 184 | // NewHeaderValidator creates a new header validator object |
| 185 | func NewHeaderValidator(name string, header *spec.Header, formats strfmt.Registry) *HeaderValidator { |
| 186 | p := &HeaderValidator{name: name, header: header, KnownFormats: formats} |
| 187 | p.validators = []valueValidator{ |
| 188 | &typeValidator{ |
| 189 | Type: spec.StringOrArray([]string{header.Type}), |
| 190 | Format: header.Format, |
| 191 | In: "header", |
| 192 | Path: name, |
| 193 | }, |
| 194 | p.stringValidator(), |
| 195 | p.formatValidator(), |
| 196 | p.numberValidator(), |
| 197 | p.sliceValidator(), |
| 198 | p.commonValidator(), |
| 199 | } |
| 200 | return p |
| 201 | } |
| 202 | |
| 203 | // Validate the value of the header against its schema |
| 204 | func (p *HeaderValidator) Validate(data interface{}) *Result { |
| 205 | result := new(Result) |
| 206 | tpe := reflect.TypeOf(data) |
| 207 | kind := tpe.Kind() |
| 208 | |
| 209 | for _, validator := range p.validators { |
| 210 | if validator.Applies(p.header, kind) { |
| 211 | if err := validator.Validate(data); err != nil { |
| 212 | result.Merge(err) |
| 213 | if err.HasErrors() { |
| 214 | return result |
| 215 | } |
| 216 | } |
| 217 | } |
| 218 | } |
| 219 | return nil |
| 220 | } |
| 221 | |
| 222 | func (p *HeaderValidator) commonValidator() valueValidator { |
| 223 | return &basicCommonValidator{ |
| 224 | Path: p.name, |
| 225 | In: "response", |
| 226 | Default: p.header.Default, |
| 227 | Enum: p.header.Enum, |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | func (p *HeaderValidator) sliceValidator() valueValidator { |
| 232 | return &basicSliceValidator{ |
| 233 | Path: p.name, |
| 234 | In: "response", |
| 235 | Default: p.header.Default, |
| 236 | MaxItems: p.header.MaxItems, |
| 237 | MinItems: p.header.MinItems, |
| 238 | UniqueItems: p.header.UniqueItems, |
| 239 | Items: p.header.Items, |
| 240 | Source: p.header, |
| 241 | KnownFormats: p.KnownFormats, |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | func (p *HeaderValidator) numberValidator() valueValidator { |
| 246 | return &numberValidator{ |
| 247 | Path: p.name, |
| 248 | In: "response", |
| 249 | Default: p.header.Default, |
| 250 | MultipleOf: p.header.MultipleOf, |
| 251 | Maximum: p.header.Maximum, |
| 252 | ExclusiveMaximum: p.header.ExclusiveMaximum, |
| 253 | Minimum: p.header.Minimum, |
| 254 | ExclusiveMinimum: p.header.ExclusiveMinimum, |
| 255 | Type: p.header.Type, |
| 256 | Format: p.header.Format, |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | func (p *HeaderValidator) stringValidator() valueValidator { |
| 261 | return &stringValidator{ |
| 262 | Path: p.name, |
| 263 | In: "response", |
| 264 | Default: p.header.Default, |
| 265 | Required: true, |
| 266 | MaxLength: p.header.MaxLength, |
| 267 | MinLength: p.header.MinLength, |
| 268 | Pattern: p.header.Pattern, |
| 269 | AllowEmptyValue: false, |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | func (p *HeaderValidator) formatValidator() valueValidator { |
| 274 | return &formatValidator{ |
| 275 | Path: p.name, |
| 276 | In: "response", |
| 277 | //Default: p.header.Default, |
| 278 | Format: p.header.Format, |
| 279 | KnownFormats: p.KnownFormats, |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | // A ParamValidator has very limited subset of validations to apply |
| 284 | type ParamValidator struct { |
| 285 | param *spec.Parameter |
| 286 | validators []valueValidator |
| 287 | KnownFormats strfmt.Registry |
| 288 | } |
| 289 | |
| 290 | // NewParamValidator creates a new param validator object |
| 291 | func NewParamValidator(param *spec.Parameter, formats strfmt.Registry) *ParamValidator { |
| 292 | p := &ParamValidator{param: param, KnownFormats: formats} |
| 293 | p.validators = []valueValidator{ |
| 294 | &typeValidator{ |
| 295 | Type: spec.StringOrArray([]string{param.Type}), |
| 296 | Format: param.Format, |
| 297 | In: param.In, |
| 298 | Path: param.Name, |
| 299 | }, |
| 300 | p.stringValidator(), |
| 301 | p.formatValidator(), |
| 302 | p.numberValidator(), |
| 303 | p.sliceValidator(), |
| 304 | p.commonValidator(), |
| 305 | } |
| 306 | return p |
| 307 | } |
| 308 | |
| 309 | // Validate the data against the description of the parameter |
| 310 | func (p *ParamValidator) Validate(data interface{}) *Result { |
| 311 | result := new(Result) |
| 312 | tpe := reflect.TypeOf(data) |
| 313 | kind := tpe.Kind() |
| 314 | |
| 315 | // TODO: validate type |
| 316 | for _, validator := range p.validators { |
| 317 | if validator.Applies(p.param, kind) { |
| 318 | if err := validator.Validate(data); err != nil { |
| 319 | result.Merge(err) |
| 320 | if err.HasErrors() { |
| 321 | return result |
| 322 | } |
| 323 | } |
| 324 | } |
| 325 | } |
| 326 | return nil |
| 327 | } |
| 328 | |
| 329 | func (p *ParamValidator) commonValidator() valueValidator { |
| 330 | return &basicCommonValidator{ |
| 331 | Path: p.param.Name, |
| 332 | In: p.param.In, |
| 333 | Default: p.param.Default, |
| 334 | Enum: p.param.Enum, |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | func (p *ParamValidator) sliceValidator() valueValidator { |
| 339 | return &basicSliceValidator{ |
| 340 | Path: p.param.Name, |
| 341 | In: p.param.In, |
| 342 | Default: p.param.Default, |
| 343 | MaxItems: p.param.MaxItems, |
| 344 | MinItems: p.param.MinItems, |
| 345 | UniqueItems: p.param.UniqueItems, |
| 346 | Items: p.param.Items, |
| 347 | Source: p.param, |
| 348 | KnownFormats: p.KnownFormats, |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | func (p *ParamValidator) numberValidator() valueValidator { |
| 353 | return &numberValidator{ |
| 354 | Path: p.param.Name, |
| 355 | In: p.param.In, |
| 356 | Default: p.param.Default, |
| 357 | MultipleOf: p.param.MultipleOf, |
| 358 | Maximum: p.param.Maximum, |
| 359 | ExclusiveMaximum: p.param.ExclusiveMaximum, |
| 360 | Minimum: p.param.Minimum, |
| 361 | ExclusiveMinimum: p.param.ExclusiveMinimum, |
| 362 | Type: p.param.Type, |
| 363 | Format: p.param.Format, |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | func (p *ParamValidator) stringValidator() valueValidator { |
| 368 | return &stringValidator{ |
| 369 | Path: p.param.Name, |
| 370 | In: p.param.In, |
| 371 | Default: p.param.Default, |
| 372 | AllowEmptyValue: p.param.AllowEmptyValue, |
| 373 | Required: p.param.Required, |
| 374 | MaxLength: p.param.MaxLength, |
| 375 | MinLength: p.param.MinLength, |
| 376 | Pattern: p.param.Pattern, |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | func (p *ParamValidator) formatValidator() valueValidator { |
| 381 | return &formatValidator{ |
| 382 | Path: p.param.Name, |
| 383 | In: p.param.In, |
| 384 | //Default: p.param.Default, |
| 385 | Format: p.param.Format, |
| 386 | KnownFormats: p.KnownFormats, |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | type basicSliceValidator struct { |
| 391 | Path string |
| 392 | In string |
| 393 | Default interface{} |
| 394 | MaxItems *int64 |
| 395 | MinItems *int64 |
| 396 | UniqueItems bool |
| 397 | Items *spec.Items |
| 398 | Source interface{} |
| 399 | itemsValidator *itemsValidator |
| 400 | KnownFormats strfmt.Registry |
| 401 | } |
| 402 | |
| 403 | func (s *basicSliceValidator) SetPath(path string) { |
| 404 | s.Path = path |
| 405 | } |
| 406 | |
| 407 | func (s *basicSliceValidator) Applies(source interface{}, kind reflect.Kind) bool { |
| 408 | switch source.(type) { |
| 409 | case *spec.Parameter, *spec.Items, *spec.Header: |
| 410 | return kind == reflect.Slice |
| 411 | } |
| 412 | return false |
| 413 | } |
| 414 | |
| 415 | func (s *basicSliceValidator) Validate(data interface{}) *Result { |
| 416 | val := reflect.ValueOf(data) |
| 417 | |
| 418 | size := int64(val.Len()) |
| 419 | if s.MinItems != nil { |
| 420 | if err := MinItems(s.Path, s.In, size, *s.MinItems); err != nil { |
| 421 | return errorHelp.sErr(err) |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | if s.MaxItems != nil { |
| 426 | if err := MaxItems(s.Path, s.In, size, *s.MaxItems); err != nil { |
| 427 | return errorHelp.sErr(err) |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | if s.UniqueItems { |
| 432 | if err := UniqueItems(s.Path, s.In, data); err != nil { |
| 433 | return errorHelp.sErr(err) |
| 434 | } |
| 435 | } |
| 436 | |
| 437 | if s.itemsValidator == nil && s.Items != nil { |
| 438 | s.itemsValidator = newItemsValidator(s.Path, s.In, s.Items, s.Source, s.KnownFormats) |
| 439 | } |
| 440 | |
| 441 | if s.itemsValidator != nil { |
| 442 | for i := 0; i < int(size); i++ { |
| 443 | ele := val.Index(i) |
| 444 | if err := s.itemsValidator.Validate(i, ele.Interface()); err != nil && err.HasErrors() { |
| 445 | return err |
| 446 | } |
| 447 | } |
| 448 | } |
| 449 | return nil |
| 450 | } |
| 451 | |
| 452 | func (s *basicSliceValidator) hasDuplicates(value reflect.Value, size int) bool { |
| 453 | dict := make(map[interface{}]struct{}) |
| 454 | for i := 0; i < size; i++ { |
| 455 | ele := value.Index(i) |
| 456 | if _, ok := dict[ele.Interface()]; ok { |
| 457 | return true |
| 458 | } |
| 459 | dict[ele.Interface()] = struct{}{} |
| 460 | } |
| 461 | return false |
| 462 | } |
| 463 | |
| 464 | type numberValidator struct { |
| 465 | Path string |
| 466 | In string |
| 467 | Default interface{} |
| 468 | MultipleOf *float64 |
| 469 | Maximum *float64 |
| 470 | ExclusiveMaximum bool |
| 471 | Minimum *float64 |
| 472 | ExclusiveMinimum bool |
| 473 | // Allows for more accurate behavior regarding integers |
| 474 | Type string |
| 475 | Format string |
| 476 | } |
| 477 | |
| 478 | func (n *numberValidator) SetPath(path string) { |
| 479 | n.Path = path |
| 480 | } |
| 481 | |
| 482 | func (n *numberValidator) Applies(source interface{}, kind reflect.Kind) bool { |
| 483 | switch source.(type) { |
| 484 | case *spec.Parameter, *spec.Schema, *spec.Items, *spec.Header: |
| 485 | isInt := kind >= reflect.Int && kind <= reflect.Uint64 |
| 486 | isFloat := kind == reflect.Float32 || kind == reflect.Float64 |
| 487 | r := isInt || isFloat |
| 488 | debugLog("schema props validator for %q applies %t for %T (kind: %v) isInt=%t, isFloat=%t\n", n.Path, r, source, kind, isInt, isFloat) |
| 489 | return r |
| 490 | } |
| 491 | debugLog("schema props validator for %q applies %t for %T (kind: %v)\n", n.Path, false, source, kind) |
| 492 | return false |
| 493 | } |
| 494 | |
| 495 | // Validate provides a validator for generic JSON numbers, |
| 496 | // |
| 497 | // By default, numbers are internally represented as float64. |
| 498 | // Formats float, or float32 may alter this behavior by mapping to float32. |
| 499 | // A special validation process is followed for integers, with optional "format": |
| 500 | // this is an attempt to provide a validation with native types. |
| 501 | // |
| 502 | // NOTE: since the constraint specified (boundary, multipleOf) is unmarshalled |
| 503 | // as float64, loss of information remains possible (e.g. on very large integers). |
| 504 | // |
| 505 | // Since this value directly comes from the unmarshalling, it is not possible |
| 506 | // at this stage of processing to check further and guarantee the correctness of such values. |
| 507 | // |
| 508 | // Normally, the JSON Number.MAX_SAFE_INTEGER (resp. Number.MIN_SAFE_INTEGER) |
| 509 | // would check we do not get such a loss. |
| 510 | // |
| 511 | // If this is the case, replace AddErrors() by AddWarnings() and IsValid() by !HasWarnings(). |
| 512 | // |
| 513 | // TODO: consider replacing boundary check errors by simple warnings. |
| 514 | // |
| 515 | // TODO: default boundaries with MAX_SAFE_INTEGER are not checked (specific to json.Number?) |
| 516 | func (n *numberValidator) Validate(val interface{}) *Result { |
| 517 | res := new(Result) |
| 518 | |
| 519 | resMultiple := new(Result) |
| 520 | resMinimum := new(Result) |
| 521 | resMaximum := new(Result) |
| 522 | |
| 523 | // Used only to attempt to validate constraint on value, |
| 524 | // even though value or constraint specified do not match type and format |
| 525 | data := valueHelp.asFloat64(val) |
| 526 | |
| 527 | // Is the provided value within the range of the specified numeric type and format? |
| 528 | res.AddErrors(IsValueValidAgainstRange(val, n.Type, n.Format, "Checked", n.Path)) |
| 529 | |
| 530 | if n.MultipleOf != nil { |
| 531 | // Is the constraint specifier within the range of the specific numeric type and format? |
| 532 | resMultiple.AddErrors(IsValueValidAgainstRange(*n.MultipleOf, n.Type, n.Format, "MultipleOf", n.Path)) |
| 533 | if resMultiple.IsValid() { |
| 534 | // Constraint validated with compatible types |
| 535 | if err := MultipleOfNativeType(n.Path, n.In, val, *n.MultipleOf); err != nil { |
| 536 | resMultiple.Merge(errorHelp.sErr(err)) |
| 537 | } |
| 538 | } else { |
| 539 | // Constraint nevertheless validated, converted as general number |
| 540 | if err := MultipleOf(n.Path, n.In, data, *n.MultipleOf); err != nil { |
| 541 | resMultiple.Merge(errorHelp.sErr(err)) |
| 542 | } |
| 543 | } |
| 544 | } |
| 545 | |
| 546 | if n.Maximum != nil { |
| 547 | // Is the constraint specifier within the range of the specific numeric type and format? |
| 548 | resMaximum.AddErrors(IsValueValidAgainstRange(*n.Maximum, n.Type, n.Format, "Maximum boundary", n.Path)) |
| 549 | if resMaximum.IsValid() { |
| 550 | // Constraint validated with compatible types |
| 551 | if err := MaximumNativeType(n.Path, n.In, val, *n.Maximum, n.ExclusiveMaximum); err != nil { |
| 552 | resMaximum.Merge(errorHelp.sErr(err)) |
| 553 | } |
| 554 | } else { |
| 555 | // Constraint nevertheless validated, converted as general number |
| 556 | if err := Maximum(n.Path, n.In, data, *n.Maximum, n.ExclusiveMaximum); err != nil { |
| 557 | resMaximum.Merge(errorHelp.sErr(err)) |
| 558 | } |
| 559 | } |
| 560 | } |
| 561 | |
| 562 | if n.Minimum != nil { |
| 563 | // Is the constraint specifier within the range of the specific numeric type and format? |
| 564 | resMinimum.AddErrors(IsValueValidAgainstRange(*n.Minimum, n.Type, n.Format, "Minimum boundary", n.Path)) |
| 565 | if resMinimum.IsValid() { |
| 566 | // Constraint validated with compatible types |
| 567 | if err := MinimumNativeType(n.Path, n.In, val, *n.Minimum, n.ExclusiveMinimum); err != nil { |
| 568 | resMinimum.Merge(errorHelp.sErr(err)) |
| 569 | } |
| 570 | } else { |
| 571 | // Constraint nevertheless validated, converted as general number |
| 572 | if err := Minimum(n.Path, n.In, data, *n.Minimum, n.ExclusiveMinimum); err != nil { |
| 573 | resMinimum.Merge(errorHelp.sErr(err)) |
| 574 | } |
| 575 | } |
| 576 | } |
| 577 | res.Merge(resMultiple, resMinimum, resMaximum) |
| 578 | res.Inc() |
| 579 | return res |
| 580 | } |
| 581 | |
| 582 | type stringValidator struct { |
| 583 | Default interface{} |
| 584 | Required bool |
| 585 | AllowEmptyValue bool |
| 586 | MaxLength *int64 |
| 587 | MinLength *int64 |
| 588 | Pattern string |
| 589 | Path string |
| 590 | In string |
| 591 | } |
| 592 | |
| 593 | func (s *stringValidator) SetPath(path string) { |
| 594 | s.Path = path |
| 595 | } |
| 596 | |
| 597 | func (s *stringValidator) Applies(source interface{}, kind reflect.Kind) bool { |
| 598 | switch source.(type) { |
| 599 | case *spec.Parameter, *spec.Schema, *spec.Items, *spec.Header: |
| 600 | r := kind == reflect.String |
| 601 | debugLog("string validator for %q applies %t for %T (kind: %v)\n", s.Path, r, source, kind) |
| 602 | return r |
| 603 | } |
| 604 | debugLog("string validator for %q applies %t for %T (kind: %v)\n", s.Path, false, source, kind) |
| 605 | return false |
| 606 | } |
| 607 | |
| 608 | func (s *stringValidator) Validate(val interface{}) *Result { |
| 609 | data, ok := val.(string) |
| 610 | if !ok { |
| 611 | return errorHelp.sErr(errors.InvalidType(s.Path, s.In, "string", val)) |
| 612 | } |
| 613 | |
| 614 | if s.Required && !s.AllowEmptyValue && (s.Default == nil || s.Default == "") { |
| 615 | if err := RequiredString(s.Path, s.In, data); err != nil { |
| 616 | return errorHelp.sErr(err) |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | if s.MaxLength != nil { |
| 621 | if err := MaxLength(s.Path, s.In, data, *s.MaxLength); err != nil { |
| 622 | return errorHelp.sErr(err) |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | if s.MinLength != nil { |
| 627 | if err := MinLength(s.Path, s.In, data, *s.MinLength); err != nil { |
| 628 | return errorHelp.sErr(err) |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | if s.Pattern != "" { |
| 633 | if err := Pattern(s.Path, s.In, data, s.Pattern); err != nil { |
| 634 | return errorHelp.sErr(err) |
| 635 | } |
| 636 | } |
| 637 | return nil |
| 638 | } |