|
| 1 | +package internal |
| 2 | + |
| 3 | +import ( |
| 4 | + "bytes" |
| 5 | + "encoding/json" |
| 6 | + "fmt" |
| 7 | + "io" |
| 8 | + "net/http" |
| 9 | + "net/url" |
| 10 | + "path" |
| 11 | + "time" |
| 12 | +) |
| 13 | + |
| 14 | +const defaultBaseURL = "https://dns-service.iran.liara.ir" |
| 15 | + |
| 16 | +// Client a Liara DNS API client. |
| 17 | +type Client struct { |
| 18 | + apiKey string |
| 19 | + baseURL *url.URL |
| 20 | + HTTPClient *http.Client |
| 21 | +} |
| 22 | + |
| 23 | +// NewClient creates a new Client. |
| 24 | +func NewClient(apiKey string) *Client { |
| 25 | + baseURL, _ := url.Parse(defaultBaseURL) |
| 26 | + |
| 27 | + return &Client{ |
| 28 | + apiKey: apiKey, |
| 29 | + HTTPClient: &http.Client{Timeout: 10 * time.Second}, |
| 30 | + baseURL: baseURL, |
| 31 | + } |
| 32 | +} |
| 33 | + |
| 34 | +// GetRecords gets the records of a domain. |
| 35 | +// https://dns-service.iran.liara.ir/swagger |
| 36 | +func (c Client) GetRecords(domainName string) ([]Record, error) { |
| 37 | + endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "api", "v1", "zones", domainName, "dns-records")) |
| 38 | + if err != nil { |
| 39 | + return nil, fmt.Errorf("parse URL: %w", err) |
| 40 | + } |
| 41 | + |
| 42 | + req, err := http.NewRequest(http.MethodGet, endpoint.String(), nil) |
| 43 | + if err != nil { |
| 44 | + return nil, fmt.Errorf("create request: %w", err) |
| 45 | + } |
| 46 | + |
| 47 | + req.Header.Set("Authorization", "Bearer "+c.apiKey) |
| 48 | + |
| 49 | + resp, err := c.HTTPClient.Do(req) |
| 50 | + if err != nil { |
| 51 | + return nil, err |
| 52 | + } |
| 53 | + |
| 54 | + defer func() { _ = resp.Body.Close() }() |
| 55 | + |
| 56 | + if resp.StatusCode != http.StatusOK { |
| 57 | + return nil, readError(resp) |
| 58 | + } |
| 59 | + |
| 60 | + var response RecordsResponse |
| 61 | + err = json.NewDecoder(resp.Body).Decode(&response) |
| 62 | + if err != nil { |
| 63 | + return nil, err |
| 64 | + } |
| 65 | + |
| 66 | + return response.Data, nil |
| 67 | +} |
| 68 | + |
| 69 | +// CreateRecord creates a record. |
| 70 | +func (c Client) CreateRecord(domainName string, record Record) (*Record, error) { |
| 71 | + endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "api", "v1", "zones", domainName, "dns-records")) |
| 72 | + if err != nil { |
| 73 | + return nil, fmt.Errorf("parse URL: %w", err) |
| 74 | + } |
| 75 | + |
| 76 | + body, err := json.Marshal(record) |
| 77 | + if err != nil { |
| 78 | + return nil, fmt.Errorf("marshal request data: %w", err) |
| 79 | + } |
| 80 | + |
| 81 | + req, err := http.NewRequest(http.MethodPost, endpoint.String(), bytes.NewReader(body)) |
| 82 | + if err != nil { |
| 83 | + return nil, fmt.Errorf("create request: %w", err) |
| 84 | + } |
| 85 | + |
| 86 | + req.Header.Set("Authorization", "Bearer "+c.apiKey) |
| 87 | + req.Header.Set("Content-Type", "application/json") |
| 88 | + |
| 89 | + resp, err := c.HTTPClient.Do(req) |
| 90 | + if err != nil { |
| 91 | + return nil, err |
| 92 | + } |
| 93 | + |
| 94 | + defer func() { _ = resp.Body.Close() }() |
| 95 | + |
| 96 | + if resp.StatusCode != http.StatusCreated { |
| 97 | + return nil, readError(resp) |
| 98 | + } |
| 99 | + |
| 100 | + var response RecordResponse |
| 101 | + err = json.NewDecoder(resp.Body).Decode(&response) |
| 102 | + if err != nil { |
| 103 | + return nil, err |
| 104 | + } |
| 105 | + |
| 106 | + return &response.Data, nil |
| 107 | +} |
| 108 | + |
| 109 | +// GetRecord gets a specific record. |
| 110 | +func (c Client) GetRecord(domainName, recordID string) (*Record, error) { |
| 111 | + endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "api", "v1", "zones", domainName, "dns-records", recordID)) |
| 112 | + if err != nil { |
| 113 | + return nil, fmt.Errorf("parse URL: %w", err) |
| 114 | + } |
| 115 | + |
| 116 | + req, err := http.NewRequest(http.MethodGet, endpoint.String(), nil) |
| 117 | + if err != nil { |
| 118 | + return nil, fmt.Errorf("create request: %w", err) |
| 119 | + } |
| 120 | + |
| 121 | + req.Header.Set("Authorization", "Bearer "+c.apiKey) |
| 122 | + |
| 123 | + resp, err := c.HTTPClient.Do(req) |
| 124 | + if err != nil { |
| 125 | + return nil, err |
| 126 | + } |
| 127 | + |
| 128 | + defer func() { _ = resp.Body.Close() }() |
| 129 | + |
| 130 | + if resp.StatusCode != http.StatusOK { |
| 131 | + return nil, readError(resp) |
| 132 | + } |
| 133 | + |
| 134 | + var response RecordResponse |
| 135 | + err = json.NewDecoder(resp.Body).Decode(&response) |
| 136 | + if err != nil { |
| 137 | + return nil, err |
| 138 | + } |
| 139 | + |
| 140 | + return &response.Data, nil |
| 141 | +} |
| 142 | + |
| 143 | +// DeleteRecord deletes a record. |
| 144 | +func (c Client) DeleteRecord(domainName, recordID string) error { |
| 145 | + endpoint, err := c.baseURL.Parse(path.Join(c.baseURL.Path, "api", "v1", "zones", domainName, "dns-records", recordID)) |
| 146 | + if err != nil { |
| 147 | + return fmt.Errorf("parse URL: %w", err) |
| 148 | + } |
| 149 | + |
| 150 | + req, err := http.NewRequest(http.MethodDelete, endpoint.String(), nil) |
| 151 | + if err != nil { |
| 152 | + return fmt.Errorf("create request: %w", err) |
| 153 | + } |
| 154 | + |
| 155 | + req.Header.Set("Authorization", "Bearer "+c.apiKey) |
| 156 | + |
| 157 | + resp, err := c.HTTPClient.Do(req) |
| 158 | + if err != nil { |
| 159 | + return err |
| 160 | + } |
| 161 | + |
| 162 | + defer func() { _ = resp.Body.Close() }() |
| 163 | + |
| 164 | + if resp.StatusCode != http.StatusNoContent && resp.StatusCode != http.StatusNotFound { |
| 165 | + return readError(resp) |
| 166 | + } |
| 167 | + |
| 168 | + return nil |
| 169 | +} |
| 170 | + |
| 171 | +func readError(resp *http.Response) error { |
| 172 | + all, err := io.ReadAll(resp.Body) |
| 173 | + if err != nil { |
| 174 | + return fmt.Errorf("API error (status code: %d)", resp.StatusCode) |
| 175 | + } |
| 176 | + |
| 177 | + var apiError APIError |
| 178 | + err = json.Unmarshal(all, &apiError) |
| 179 | + if err != nil { |
| 180 | + return fmt.Errorf("API error (status code: %d): %s", resp.StatusCode, string(all)) |
| 181 | + } |
| 182 | + |
| 183 | + return fmt.Errorf("API error (status code: %d): %w", resp.StatusCode, &apiError) |
| 184 | +} |
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