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* Use vendored go-swagger (#8087) * Use vendored go-swagger * vendor go-swagger * revert un wanteed change * remove un-needed GO111MODULE * Update Makefile Co-Authored-By: techknowlogick <matti@mdranta.net> * re-generate swagger file
85 lines
3.5 KiB
Go
85 lines
3.5 KiB
Go
package couchbase
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/*
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The goal here is to map a hostname:port combination to another hostname:port
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combination. The original hostname:port gives the name and regular KV port
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of a couchbase server. We want to determine the corresponding SSL KV port.
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To do this, we have a pool services structure, as obtained from
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the /pools/default/nodeServices API.
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For a fully configured two-node system, the structure may look like this:
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{"rev":32,"nodesExt":[
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{"services":{"mgmt":8091,"mgmtSSL":18091,"fts":8094,"ftsSSL":18094,"indexAdmin":9100,"indexScan":9101,"indexHttp":9102,"indexStreamInit":9103,"indexStreamCatchup":9104,"indexStreamMaint":9105,"indexHttps":19102,"capiSSL":18092,"capi":8092,"kvSSL":11207,"projector":9999,"kv":11210,"moxi":11211},"hostname":"172.23.123.101"},
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{"services":{"mgmt":8091,"mgmtSSL":18091,"indexAdmin":9100,"indexScan":9101,"indexHttp":9102,"indexStreamInit":9103,"indexStreamCatchup":9104,"indexStreamMaint":9105,"indexHttps":19102,"capiSSL":18092,"capi":8092,"kvSSL":11207,"projector":9999,"kv":11210,"moxi":11211,"n1ql":8093,"n1qlSSL":18093},"thisNode":true,"hostname":"172.23.123.102"}]}
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In this case, note the "hostname" fields, and the "kv" and "kvSSL" fields.
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For a single-node system, perhaps brought up for testing, the structure may look like this:
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{"rev":66,"nodesExt":[
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{"services":{"mgmt":8091,"mgmtSSL":18091,"indexAdmin":9100,"indexScan":9101,"indexHttp":9102,"indexStreamInit":9103,"indexStreamCatchup":9104,"indexStreamMaint":9105,"indexHttps":19102,"kv":11210,"kvSSL":11207,"capi":8092,"capiSSL":18092,"projector":9999,"n1ql":8093,"n1qlSSL":18093},"thisNode":true}],"clusterCapabilitiesVer":[1,0],"clusterCapabilities":{"n1ql":["enhancedPreparedStatements"]}}
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Here, note that there is only a single entry in the "nodeExt" array and that it does not have a "hostname" field.
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We will assume that either hostname fields are present, or there is only a single node.
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*/
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import (
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"encoding/json"
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"fmt"
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"strconv"
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"strings"
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)
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func ParsePoolServices(jsonInput string) (*PoolServices, error) {
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ps := &PoolServices{}
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err := json.Unmarshal([]byte(jsonInput), ps)
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return ps, err
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}
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func MapKVtoSSL(hostport string, ps *PoolServices) (string, error) {
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colonIndex := strings.LastIndex(hostport, ":")
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if colonIndex < 0 {
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return "", fmt.Errorf("Unable to find host/port separator in %s", hostport)
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}
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host := hostport[0:colonIndex]
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port := hostport[colonIndex+1:]
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portInt, err := strconv.Atoi(port)
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if err != nil {
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return "", fmt.Errorf("Unable to parse host/port combination %s: %v", hostport, err)
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}
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var ns *NodeServices
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if len(ps.NodesExt) == 1 {
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ns = &(ps.NodesExt[0])
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} else {
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for i := range ps.NodesExt {
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hostname := ps.NodesExt[i].Hostname
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if len(hostname) == 0 {
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// in case of missing hostname, check for 127.0.0.1
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hostname = "127.0.0.1"
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}
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if hostname == host {
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ns = &(ps.NodesExt[i])
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break
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}
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}
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}
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if ns == nil {
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return "", fmt.Errorf("Unable to parse host/port combination %s: no matching node found among %d", hostport, len(ps.NodesExt))
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}
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kv, found := ns.Services["kv"]
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if !found {
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return "", fmt.Errorf("Unable to map host/port combination %s: target host has no kv port listed", hostport)
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}
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kvSSL, found := ns.Services["kvSSL"]
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if !found {
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return "", fmt.Errorf("Unable to map host/port combination %s: target host has no kvSSL port listed", hostport)
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}
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if portInt != kv {
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return "", fmt.Errorf("Unable to map hostport combination %s: expected port %d but found %d", hostport, portInt, kv)
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}
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return fmt.Sprintf("%s:%d", host, kvSSL), nil
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}
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