/
definition_intepreter.go
95 lines (76 loc) · 2.39 KB
/
definition_intepreter.go
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
package mockhttp
import (
"net/http"
"github.com/expr-lang/expr"
)
var parsedXMLBodyMimeTypes = []string{
"application/xml",
"application/soap+xml",
"text/xml",
}
var parsedFormBodyMimeTypes = []string{
"application/x-www-form-urlencoded",
"multipart/form-data",
}
var parsedJSONBodyMimeTypes = []string{
"application/json",
}
var parsedBodyMimeTypes = merge(parsedXMLBodyMimeTypes, parsedJSONBodyMimeTypes, parsedFormBodyMimeTypes)
func (r *fileBasedResolver) validateTarget(req *incomingRequest) error {
if in[string](req.Method, []string{http.MethodGet, http.MethodHead, http.MethodDelete}) {
return nil
}
headers := req.Headers
contentType, exist := headers["Content-Type"]
if !exist {
return ErrNoContentType
}
if !some[string](parsedBodyMimeTypes, func(supportedContentType string) bool {
return supportedContentType == contentType
}) {
return ErrUnsupportedContentType
}
return nil
}
func (r *fileBasedResolver) findResponse(request *incomingRequest, selectedDefinition fileBasedMockDefinition) (*mockResponse, error) {
if err := r.validateTarget(request); err != nil {
return nil, err
}
return r.chooseResponse(request, selectedDefinition), nil
}
func (r *fileBasedResolver) chooseResponse(request *incomingRequest, definition fileBasedMockDefinition) *mockResponse {
correctResponse, _ := findFirst[mockResponse](definition.Responses, func(data mockResponse) bool {
// lower the priotization of non-rules / default affected response
if data.isDefault() {
return false
}
return all[string](data.Rules, func(rule string) bool {
return r.isRuleFulfilled(request, rule)
})
})
if !correctResponse.isNil() {
return &correctResponse
}
// if no mock response found, can use default one response (with no rule)
defaultResponse, _ := findFirst[mockResponse](definition.Responses, func(data mockResponse) bool {
return data.isDefault()
})
if !defaultResponse.isNil() {
return &defaultResponse
}
return nil
}
func (r *fileBasedResolver) isRuleFulfilled(request *incomingRequest, rule string) bool {
evalRes, err := expr.Eval(rule, map[string]interface{}{
"raw": request.RawBody,
"body": request.Body,
"routeParams": request.RouteParams.export(),
"headers": request.Headers.export(),
"cookies": request.Cookies.export(),
"queryParams": request.QueryParams.export(),
})
if err != nil {
return false
}
return evalRes.(bool)
}