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package api
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"regexp"
"strings"
"gitlab.com/gitlab-org/cli/api"
"gitlab.com/gitlab-org/cli/internal/config"
)
const (
// stringArrayRegexPattern represents a pattern to find strings like: [item, item_two]
stringArrayRegexPattern = `^\[\s*([[:lower:]_]+(\s*,\s*[[:lower:]_]+)*)?\s*\]$`
)
var strArrayRegex = regexp.MustCompile(stringArrayRegexPattern)
func httpRequest(client *api.Client, config config.Config, hostname string, method string, p string, params interface{}, headers []string) (*http.Response, error) {
var err error
isGraphQL := p == "graphql"
if client.Lab().BaseURL().Host != hostname || isGraphQL {
client, err = api.NewClientWithCfg(hostname, config, isGraphQL)
if err != nil {
return nil, err
}
}
baseURL := client.Lab().BaseURL()
baseURLStr := baseURL.String()
if strings.Contains(p, "://") {
baseURLStr = p
} else if isGraphQL {
baseURL.Path = strings.Replace(baseURL.Path, "api/v4/", "", 1)
baseURLStr = baseURL.String()
} else {
baseURLStr = baseURLStr + strings.TrimPrefix(p, "/")
}
var body io.Reader
var bodyIsJSON bool
switch pp := params.(type) {
case map[string]interface{}:
if strings.EqualFold(method, http.MethodGet) || strings.EqualFold(method, http.MethodDelete) {
baseURLStr, err = parseQuery(baseURLStr, pp)
if err != nil {
return nil, err
}
} else {
for key, value := range pp {
if vv, ok := value.([]byte); ok {
pp[key] = string(vv)
}
if strValue, ok := value.(string); ok && strArrayRegex.MatchString(strValue) {
pp[key] = parseStringArrayField(strValue)
}
}
if isGraphQL {
pp = groupGraphQLVariables(pp)
}
b, err := json.Marshal(pp)
if err != nil {
return nil, fmt.Errorf("error serializing parameters: %w", err)
}
body = bytes.NewBuffer(b)
bodyIsJSON = true
}
case io.Reader:
body = pp
case nil:
body = nil
default:
return nil, fmt.Errorf("unrecognized parameter type: %v", params)
}
baseURL, _ = url.Parse(baseURLStr)
req, err := api.NewHTTPRequest(client, method, baseURL, body, headers, bodyIsJSON)
if err != nil {
return nil, err
}
return client.HTTPClient().Do(req)
}
func groupGraphQLVariables(params map[string]interface{}) map[string]interface{} {
topLevel := make(map[string]interface{})
variables := make(map[string]interface{})
for key, val := range params {
switch key {
case "query", "operationName":
topLevel[key] = val
default:
variables[key] = val
}
}
if len(variables) > 0 {
topLevel["variables"] = variables
}
return topLevel
}
func parseQuery(path string, params map[string]interface{}) (string, error) {
if len(params) == 0 {
return path, nil
}
q := url.Values{}
for key, value := range params {
switch v := value.(type) {
case string:
q.Add(key, v)
case []byte:
q.Add(key, string(v))
case nil:
q.Add(key, "")
case int:
q.Add(key, fmt.Sprintf("%d", v))
case bool:
q.Add(key, fmt.Sprintf("%v", v))
default:
return "", fmt.Errorf("unknown type %v", v)
}
}
sep := "?"
if strings.ContainsRune(path, '?') {
sep = "&"
}
return path + sep + q.Encode(), nil
}
func parseStringArrayField(strValue string) []string {
strValue = strings.TrimPrefix(strValue, "[")
strValue = strings.TrimSuffix(strValue, "]")
strArrayElements := strings.Split(strValue, ",")
var strSlice []string
for _, element := range strArrayElements {
element = strings.TrimSpace(element)
element = strings.Trim(element, `"`)
strSlice = append(strSlice, element)
}
return strSlice
}
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