150 lines
4.7 KiB
Go
150 lines
4.7 KiB
Go
package main
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import (
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"fmt"
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"dim/query"
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"dim/types"
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)
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// PoolCreate will create a new pool.
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func PoolCreate(c *Context, req Request, res *Response) error {
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name := ""
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options := struct {
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Layer3Domain string `json:"layer3domain"`
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VLAN uint `json:"vlan"`
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Owner string `json:"owner"`
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Attributes types.FieldMap `json:"attributes"`
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}{
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Attributes: types.NewFieldMap(map[string]interface{}{}),
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}
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if err := req.ParseAtLeast(1, &name, &options); err != nil {
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res.AddMessage(LevelError, "could not parse options: %s", err)
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return nil
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}
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if name == "" {
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res.AddMessage(LevelError, "name is empty")
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return nil
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}
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if options.VLAN > 0 {
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options.Attributes.Set("vlan", options.VLAN)
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}
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attrs, err := options.Attributes.MarshalJSON()
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if err != nil {
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res.AddMessage(LevelError, "could not encode attributes to json: %s", err)
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return nil
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}
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l3id := 0
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err = c.tx.QueryRow(`select id from layer3domains where name = $1`, options.Layer3Domain).Scan(&l3id)
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if err != nil {
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res.AddMessage(LevelError, "could not resolve layer3domain")
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return fmt.Errorf("could not resolve layer3domain '%s': %#v", options.Layer3Domain, err)
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}
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_, err = c.tx.Exec(`insert into pools(name, created_by, modified_by, attributes, layer3domain_id)
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values ($1, $2, $2, $3, $4)`, name, c.username, attrs, l3id)
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if err != nil {
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res.AddMessage(LevelError, "could not create new pool")
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return fmt.Errorf("could not create new pool '%s': %#v", name, err)
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}
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res.AddMessage(LevelInfo, "created pool '%s'", name)
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return nil
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}
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// PoolDelete deletes a pool.
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func PoolDelete(c *Context, req Request, res *Response) error {
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name := ""
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options := struct {
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Force bool `json:"force"`
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DeleteSubnets bool `json:"delete_subnets"`
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}{}
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if err := req.ParseAtLeast(1, &name, &options); err != nil {
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res.AddMessage(LevelError, "could not parse options: %s", err)
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return nil
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}
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if name == "" {
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res.AddMessage(LevelError, "name is empty")
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return nil
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}
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id := 0
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l3id := 0
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err := c.tx.QueryRow(`select id, layer3domain_id from pools where name = $1 for update`, name).
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Scan(&id, &l3id)
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if err != nil {
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res.AddMessage(LevelError, "could not fetch pool information") // TODO implement sql.ErrNotFound
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return fmt.Errorf("could not find pool '%s': %#v", name, err)
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}
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if options.Force && options.DeleteSubnets {
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// TODO what else needs to be deleted?
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_, err := c.tx.Exec(`delete from containers where id = $1 and layer3domain_id = $2`, id, l3id)
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if err != nil {
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res.AddMessage(LevelError, "could not delete subnets")
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return fmt.Errorf("could not delete subnets for pool '%s': %#v", name, err)
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}
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}
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if _, err := c.tx.Exec(`delete from pools where id = $1 and layer3domain_id = $2`, id, l3id); err != nil {
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res.AddMessage(LevelError, "could not delete pool")
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return fmt.Errorf("could not delete pool '%s': %#v", name, err)
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}
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res.AddMessage(LevelInfo, "deleted pool '%s'", name)
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return nil
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}
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// PoolList lists all pools with the requested fields.
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func PoolList(c *Context, req Request, res *Response) error {
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options := struct {
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Attributes types.FieldList
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}{
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Attributes: types.NewFieldList("name", "vlan", "subnets"),
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}
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if err := req.ParseAtLeast(0, &options); err != nil {
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res.AddMessage(LevelError, "could not parse options")
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return nil
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}
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fieldMap := map[string]string{
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"name": "p.name",
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"modified_by": "p.modified_by",
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"modified_at": "p.modified_at",
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"created_by": "p.created_by",
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"created_at": "p.created_at",
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"layer3domain": "l.name",
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"subnets": "(jsonb_agg(c.network::text) filter (where c.network is not null))::text",
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}
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selClause := query.FieldListToSelect("p", options.Attributes, fieldMap)
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from := "pools p"
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groupBy := "p.name, p.modified_by, p.modified_at, p.created_by, p.created_at, p.attributes"
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if options.Attributes.Contains("layer3domain") {
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from += " join layer3domains l on p.layer3domain_id = l.id"
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groupBy += ",l.name"
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}
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if options.Attributes.Contains("subnets") {
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from += " left join containers c on p.id = c.pool_id and p.layer3domain_id = c.layer3domain_id"
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}
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qry := fmt.Sprintf("select %s from %s group by %s order by p.name", selClause, from, groupBy)
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rows, err := c.tx.Query(qry)
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if err != nil {
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res.AddMessage(LevelError, "could not fetch pools")
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return fmt.Errorf("could not fetch pools: %#v - query: %s", err, qry)
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}
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defer rows.Close()
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res.Result, err = query.RowsToMap(rows)
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if err != nil {
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res.Result = nil
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res.AddMessage(LevelError, "could not parse pools")
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return fmt.Errorf("could not generate pool list: %#v", err)
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}
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return nil
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}
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func PoolGetAttr(c *Context, req Request, res *Response) error {
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return nil
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}
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func PoolSetAttr(c *Context, req Request, res *Response) error {
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return nil
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}
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