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| 1 | +package linodego |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "encoding/json" |
| 6 | + "fmt" |
| 7 | + "time" |
| 8 | + |
| 9 | + "github.com/linode/linodego/internal/parseabletime" |
| 10 | +) |
| 11 | + |
| 12 | +// FirewallStatus enum type |
| 13 | +type FirewallStatus string |
| 14 | + |
| 15 | +// FirewallStatus enums start with Firewall |
| 16 | +const ( |
| 17 | + FirewallEnabled FirewallStatus = "enabled" |
| 18 | + FirewallDisabled FirewallStatus = "disabled" |
| 19 | + FirewallDeleted FirewallStatus = "deleted" |
| 20 | +) |
| 21 | + |
| 22 | +// A Firewall is a set of networking rules (iptables) applied to Devices with which it is associated |
| 23 | +type Firewall struct { |
| 24 | + ID int `json:"id"` |
| 25 | + Label string `json:"label"` |
| 26 | + Status FirewallStatus `json:"status"` |
| 27 | + Tags []string `json:"tags,omitempty"` |
| 28 | + Rules FirewallRuleSet `json:"rules"` |
| 29 | + Created *time.Time `json:"-"` |
| 30 | + Updated *time.Time `json:"-"` |
| 31 | +} |
| 32 | + |
| 33 | +// DevicesCreationOptions fields are used when adding devices during the Firewall creation process. |
| 34 | +type DevicesCreationOptions struct { |
| 35 | + Linodes []string `json:"linodes,omitempty"` |
| 36 | + NodeBalancers []string `json:"nodebalancers,omitempty"` |
| 37 | +} |
| 38 | + |
| 39 | +// FirewallCreateOptions fields are those accepted by CreateFirewall |
| 40 | +type FirewallCreateOptions struct { |
| 41 | + Label string `json:"label,omitempty"` |
| 42 | + Rules FirewallRuleSet `json:"rules"` |
| 43 | + Tags []string `json:"tags,omitempty"` |
| 44 | + Devices DevicesCreationOptions `json:"devices,omitempty"` |
| 45 | +} |
| 46 | + |
| 47 | +// UnmarshalJSON for Firewall responses |
| 48 | +func (i *Firewall) UnmarshalJSON(b []byte) error { |
| 49 | + type Mask Firewall |
| 50 | + |
| 51 | + p := struct { |
| 52 | + *Mask |
| 53 | + Created *parseabletime.ParseableTime `json:"created"` |
| 54 | + Updated *parseabletime.ParseableTime `json:"updated"` |
| 55 | + }{ |
| 56 | + Mask: (*Mask)(i), |
| 57 | + } |
| 58 | + |
| 59 | + if err := json.Unmarshal(b, &p); err != nil { |
| 60 | + return err |
| 61 | + } |
| 62 | + |
| 63 | + i.Created = (*time.Time)(p.Created) |
| 64 | + i.Updated = (*time.Time)(p.Updated) |
| 65 | + |
| 66 | + return nil |
| 67 | +} |
| 68 | + |
| 69 | +// FirewallsPagedResponse represents a Linode API response for listing of Cloud Firewalls |
| 70 | +type FirewallsPagedResponse struct { |
| 71 | + *PageOptions |
| 72 | + Data []Firewall `json:"data"` |
| 73 | +} |
| 74 | + |
| 75 | +func (FirewallsPagedResponse) endpoint(c *Client) string { |
| 76 | + endpoint, err := c.Firewalls.Endpoint() |
| 77 | + if err != nil { |
| 78 | + panic(err) |
| 79 | + } |
| 80 | + return endpoint |
| 81 | +} |
| 82 | + |
| 83 | +func (resp *FirewallsPagedResponse) appendData(r *FirewallsPagedResponse) { |
| 84 | + resp.Data = append(resp.Data, r.Data...) |
| 85 | +} |
| 86 | + |
| 87 | +// ListFirewalls returns a paginated list of Cloud Firewalls |
| 88 | +func (c *Client) ListFirewalls(ctx context.Context, opts *ListOptions) ([]Firewall, error) { |
| 89 | + response := FirewallsPagedResponse{} |
| 90 | + |
| 91 | + err := c.listHelper(ctx, &response, opts) |
| 92 | + |
| 93 | + if err != nil { |
| 94 | + return nil, err |
| 95 | + } |
| 96 | + |
| 97 | + return response.Data, nil |
| 98 | +} |
| 99 | + |
| 100 | +// CreateFirewall creates a single Firewall with at least one set of inbound or outbound rules |
| 101 | +func (c *Client) CreateFirewall(ctx context.Context, createOpts FirewallCreateOptions) (*Firewall, error) { |
| 102 | + var body string |
| 103 | + e, err := c.Firewalls.Endpoint() |
| 104 | + if err != nil { |
| 105 | + return nil, err |
| 106 | + } |
| 107 | + |
| 108 | + req := c.R(ctx).SetResult(&Firewall{}) |
| 109 | + |
| 110 | + if bodyData, err := json.Marshal(createOpts); err == nil { |
| 111 | + body = string(bodyData) |
| 112 | + } else { |
| 113 | + return nil, NewError(err) |
| 114 | + } |
| 115 | + |
| 116 | + r, err := coupleAPIErrors(req. |
| 117 | + SetBody(body). |
| 118 | + Post(e)) |
| 119 | + |
| 120 | + if err != nil { |
| 121 | + return nil, err |
| 122 | + } |
| 123 | + return r.Result().(*Firewall), nil |
| 124 | +} |
| 125 | + |
| 126 | +// DeleteFirewall deletes a single Firewall with the provided ID |
| 127 | +func (c *Client) DeleteFirewall(ctx context.Context, id int) error { |
| 128 | + e, err := c.Firewalls.Endpoint() |
| 129 | + if err != nil { |
| 130 | + return err |
| 131 | + } |
| 132 | + |
| 133 | + req := c.R(ctx) |
| 134 | + |
| 135 | + e = fmt.Sprintf("%s/%d", e, id) |
| 136 | + _, err = coupleAPIErrors(req.Delete(e)) |
| 137 | + return err |
| 138 | +} |
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