Skip to content
Navigation Menu
{{ message }}
forked from coder/coder
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathqueryparams.go
More file actions
466 lines (421 loc) · 15.5 KB
/
Copy pathqueryparams.go
File metadata and controls
466 lines (421 loc) · 15.5 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
package httpapi
import (
"database/sql"
"encoding/json"
"errors"
"fmt"
"net/url"
"strconv"
"strings"
"time"
"github.com/google/uuid"
"golang.org/x/xerrors"
"github.com/coder/coder/v2/codersdk"
)
// QueryParamParser is a helper for parsing all query params and gathering all
// errors in 1 sweep. This means all invalid fields are returned at once,
// rather than only returning the first error
type QueryParamParser struct {
// Errors is the set of errors to return via the API. If the length
// of this set is 0, there are no errors!.
Errors []codersdk.ValidationError
// Parsed is a map of all query params that were parsed. This is useful
// for checking if extra query params were passed in.
Parsed map[string]bool
// RequiredNotEmptyParams is a map of all query params that are required. This is useful
// for forcing a value to be provided.
RequiredNotEmptyParams map[string]bool
}
func NewQueryParamParser() *QueryParamParser {
return &QueryParamParser{
Errors: []codersdk.ValidationError{},
Parsed: map[string]bool{},
RequiredNotEmptyParams: map[string]bool{},
}
}
// ErrorExcessParams checks if any query params were passed in that were not
// parsed. If so, it adds an error to the parser as these values are not valid
// query parameters.
func (p *QueryParamParser) ErrorExcessParams(values url.Values) {
for k := range values {
if _, ok := p.Parsed[k]; !ok {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: k,
Detail: fmt.Sprintf("%q is not a valid query param", k),
})
}
}
}
func (p *QueryParamParser) addParsed(key string) {
p.Parsed[key] = true
}
func (p *QueryParamParser) UInt(vals url.Values, def uint64, queryParam string) uint64 {
v, err := parseQueryParam(p, vals, func(v string) (uint64, error) {
return strconv.ParseUint(v, 10, 64)
}, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid positive integer: %s", queryParam, err.Error()),
})
return 0
}
return v
}
func (p *QueryParamParser) Int(vals url.Values, def int, queryParam string) int {
v, err := parseQueryParam(p, vals, strconv.Atoi, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid integer: %s", queryParam, err.Error()),
})
}
return v
}
func (p *QueryParamParser) Int64(vals url.Values, def int64, queryParam string) int64 {
v, err := parseQueryParam(p, vals, func(v string) (int64, error) {
return strconv.ParseInt(v, 10, 64)
}, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid 64-bit integer: %s", queryParam, err.Error()),
})
return 0
}
return v
}
// PositiveInt32 function checks if the given value is 32-bit and positive.
//
// We can't use `uint32` as the value must be within the range <0,2147483647>
// as database expects it. Otherwise, the database query fails with `pq: OFFSET must not be negative`.
func (p *QueryParamParser) PositiveInt32(vals url.Values, def int32, queryParam string) int32 {
v, err := parseQueryParam(p, vals, func(v string) (int32, error) {
intValue, err := strconv.ParseInt(v, 10, 32)
if err != nil {
return 0, err
}
if intValue < 0 {
return 0, xerrors.Errorf("value is negative")
}
return int32(intValue), nil
}, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid 32-bit positive integer: %s", queryParam, err.Error()),
})
}
return v
}
// PositiveInt64 function checks if the given value is 64-bit and positive.
func (p *QueryParamParser) PositiveInt64(vals url.Values, def int64, queryParam string) int64 {
v, err := parseQueryParam(p, vals, func(v string) (int64, error) {
intValue, err := strconv.ParseInt(v, 10, 64)
if err != nil {
return 0, err
}
if intValue < 0 {
return 0, xerrors.Errorf("value is negative")
}
return intValue, nil
}, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid 64-bit positive integer: %s", queryParam, err.Error()),
})
}
return v
}
// NullableBoolean will return a null sql value if no input is provided.
// SQLc still uses sql.NullBool rather than the generic type. So converting from
// the generic type is required.
func (p *QueryParamParser) NullableBoolean(vals url.Values, def sql.NullBool, queryParam string) sql.NullBool {
v, err := parseNullableQueryParam[bool](p, vals, strconv.ParseBool, sql.Null[bool]{
V: def.Bool,
Valid: def.Valid,
}, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid boolean: %s", queryParam, err.Error()),
})
}
return sql.NullBool{
Bool: v.V,
Valid: v.Valid,
}
}
func (p *QueryParamParser) Boolean(vals url.Values, def bool, queryParam string) bool {
v, err := parseQueryParam(p, vals, strconv.ParseBool, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid boolean: %s", queryParam, err.Error()),
})
}
return v
}
func (p *QueryParamParser) RequiredNotEmpty(queryParam ...string) *QueryParamParser {
for _, q := range queryParam {
p.RequiredNotEmptyParams[q] = true
}
return p
}
// UUIDorName will parse a string as a UUID, if it fails, it uses the "fetchByName"
// function to return a UUID based on the value as a string.
// This is useful when fetching something like an organization by ID or by name.
func (p *QueryParamParser) UUIDorName(vals url.Values, def uuid.UUID, queryParam string, fetchByName func(name string) (uuid.UUID, error)) uuid.UUID {
return ParseCustom(p, vals, def, queryParam, func(v string) (uuid.UUID, error) {
id, err := uuid.Parse(v)
if err == nil {
return id, nil
}
return fetchByName(v)
})
}
func (p *QueryParamParser) UUIDorMe(vals url.Values, def uuid.UUID, me uuid.UUID, queryParam string) uuid.UUID {
return ParseCustom(p, vals, def, queryParam, func(v string) (uuid.UUID, error) {
if v == "me" {
return me, nil
}
return uuid.Parse(v)
})
}
func (p *QueryParamParser) UUID(vals url.Values, def uuid.UUID, queryParam string) uuid.UUID {
v, err := parseQueryParam(p, vals, uuid.Parse, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid uuid", queryParam),
})
}
return v
}
func (p *QueryParamParser) UUIDs(vals url.Values, def []uuid.UUID, queryParam string) []uuid.UUID {
return ParseCustomList(p, vals, def, queryParam, func(v string) (uuid.UUID, error) {
return uuid.Parse(strings.TrimSpace(v))
})
}
func (p *QueryParamParser) RedirectURL(vals url.Values, base *url.URL, queryParam string) *url.URL {
v, err := parseQueryParam(p, vals, url.Parse, base, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid url: %s", queryParam, err.Error()),
})
}
// OAuth 2.1 requires exact redirect URI matching.
if v.String() != base.String() {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must exactly match %s", queryParam, base),
})
}
return v
}
func (p *QueryParamParser) Time(vals url.Values, def time.Time, queryParam, layout string) time.Time {
return p.timeWithMutate(vals, def, queryParam, layout, nil)
}
// Time uses the default time format of RFC3339Nano and always returns a UTC time.
func (p *QueryParamParser) Time3339Nano(vals url.Values, def time.Time, queryParam string) time.Time {
layout := time.RFC3339Nano
// All search queries are forced to lowercase. But the RFC format requires
// upper case letters. So just uppercase the term.
return p.timeWithMutate(vals, def, queryParam, layout, strings.ToUpper)
}
func (p *QueryParamParser) timeWithMutate(vals url.Values, def time.Time, queryParam, layout string, mutate func(term string) string) time.Time {
v, err := parseQueryParam(p, vals, func(term string) (time.Time, error) {
if mutate != nil {
term = mutate(term)
}
t, err := time.Parse(layout, term)
if err != nil {
return time.Time{}, err
}
return t.UTC(), nil
}, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid date format (%s): %s", queryParam, layout, err.Error()),
})
}
return v
}
func (p *QueryParamParser) String(vals url.Values, def string, queryParam string) string {
v, err := parseQueryParam(p, vals, func(v string) (string, error) {
return v, nil
}, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid string: %s", queryParam, err.Error()),
})
}
return v
}
func (p *QueryParamParser) Strings(vals url.Values, def []string, queryParam string) []string {
return ParseCustomList(p, vals, def, queryParam, func(v string) (string, error) {
return v, nil
})
}
func (p *QueryParamParser) JSONStringMap(vals url.Values, def map[string]string, queryParam string) map[string]string {
v, err := parseQueryParam(p, vals, func(v string) (map[string]string, error) {
var m map[string]string
if err := json.NewDecoder(strings.NewReader(v)).Decode(&m); err != nil {
return nil, err
}
return m, nil
}, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid JSON object: %s", queryParam, err.Error()),
})
}
return v
}
func (p *QueryParamParser) ProvisionerDaemonStatuses(vals url.Values, def []codersdk.ProvisionerDaemonStatus, queryParam string) []codersdk.ProvisionerDaemonStatus {
return ParseCustomList(p, vals, def, queryParam, func(v string) (codersdk.ProvisionerDaemonStatus, error) {
return codersdk.ProvisionerDaemonStatus(v), nil
})
}
func (p *QueryParamParser) Duration(vals url.Values, def time.Duration, queryParam string) time.Duration {
v, err := parseQueryParam(p, vals, func(v string) (time.Duration, error) {
d, err := time.ParseDuration(v)
if err != nil {
return 0, err
}
return d, nil
}, def, queryParam)
if err != nil {
p.Errors = append(p.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q must be a valid duration (e.g., '24h', '30m', '1h30m'): %s", queryParam, err.Error()),
})
}
return v
}
// ValidEnum represents an enum that can be parsed and validated.
type ValidEnum interface {
// Add more types as needed (avoid importing large dependency trees).
~string
// Valid is required on the enum type to be used with ParseEnum.
Valid() bool
}
// ParseEnum is a function that can be passed into ParseCustom that handles enum
// validation.
func ParseEnum[T ValidEnum](term string) (T, error) {
enum := T(term)
if enum.Valid() {
return enum, nil
}
var empty T
return empty, xerrors.Errorf("%q is not a valid value", term)
}
// ParseCustom has to be a function, not a method on QueryParamParser because generics
// cannot be used on struct methods.
func ParseCustom[T any](parser *QueryParamParser, vals url.Values, def T, queryParam string, parseFunc func(v string) (T, error)) T {
v, err := parseQueryParam(parser, vals, parseFunc, def, queryParam)
if err != nil {
parser.Errors = append(parser.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q has invalid value: %s", queryParam, err.Error()),
})
}
return v
}
// ParseCustomList is a function that handles csv query params or multiple values
// for a query param.
// Csv is supported as it is a common way to pass multiple values in a query param.
// Multiple values is supported (key=value&key=value2) for feature parity with GitHub issue search.
func ParseCustomList[T any](parser *QueryParamParser, vals url.Values, def []T, queryParam string, parseFunc func(v string) (T, error)) []T {
v, err := parseQueryParamSet(parser, vals, func(set []string) ([]T, error) {
// Gather all terms.
allTerms := make([]string, 0, len(set))
for _, s := range set {
// If a term is a csv, break it out into individual terms.
terms := strings.Split(s, ",")
allTerms = append(allTerms, terms...)
}
var badErrors error
var output []T
for _, s := range allTerms {
good, err := parseFunc(s)
if err != nil {
badErrors = errors.Join(badErrors, err)
continue
}
output = append(output, good)
}
if badErrors != nil {
return []T{}, badErrors
}
return output, nil
}, def, queryParam)
if err != nil {
parser.Errors = append(parser.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q has invalid values: %s", queryParam, err.Error()),
})
}
return v
}
func parseNullableQueryParam[T any](parser *QueryParamParser, vals url.Values, parse func(v string) (T, error), def sql.Null[T], queryParam string) (sql.Null[T], error) {
setParse := parseSingle(parser, parse, def.V, queryParam)
return parseQueryParamSet[sql.Null[T]](parser, vals, func(set []string) (sql.Null[T], error) {
if len(set) == 0 {
return sql.Null[T]{
Valid: false,
}, nil
}
value, err := setParse(set)
if err != nil {
return sql.Null[T]{}, err
}
return sql.Null[T]{
V: value,
Valid: true,
}, nil
}, def, queryParam)
}
// parseQueryParam expects just 1 value set for the given query param.
func parseQueryParam[T any](parser *QueryParamParser, vals url.Values, parse func(v string) (T, error), def T, queryParam string) (T, error) {
setParse := parseSingle(parser, parse, def, queryParam)
return parseQueryParamSet(parser, vals, setParse, def, queryParam)
}
func parseSingle[T any](parser *QueryParamParser, parse func(v string) (T, error), def T, queryParam string) func(set []string) (T, error) {
return func(set []string) (T, error) {
if len(set) > 1 {
// Set as a parser.Error rather than return an error.
// Returned errors are errors from the passed in `parse` function, and
// imply the query param value had attempted to be parsed.
// By raising the error this way, we can also more easily control how it
// is presented to the user. A returned error is wrapped with more text.
parser.Errors = append(parser.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q provided more than once, found %d times. Only provide 1 instance of this query param.", queryParam, len(set)),
})
return def, nil
}
return parse(set[0])
}
}
func parseQueryParamSet[T any](parser *QueryParamParser, vals url.Values, parse func(set []string) (T, error), def T, queryParam string) (T, error) {
parser.addParsed(queryParam)
// If the query param is required and not present, return an error.
if parser.RequiredNotEmptyParams[queryParam] && (!vals.Has(queryParam) || vals.Get(queryParam) == "") {
parser.Errors = append(parser.Errors, codersdk.ValidationError{
Field: queryParam,
Detail: fmt.Sprintf("Query param %q is required and cannot be empty", queryParam),
})
return def, nil
}
// If the query param is not present, return the default value.
if !vals.Has(queryParam) || vals.Get(queryParam) == "" {
return def, nil
}
return parse(vals[queryParam])
}
You can’t perform that action at this time.