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75513575be
* store dependency's in git * since we vendor ... rm tech-depts * aad make target 'vendor' to update vendor folder (manual task)
76 lines
1.6 KiB
Go
76 lines
1.6 KiB
Go
package pq
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import (
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"fmt"
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"net"
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nurl "net/url"
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"sort"
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"strings"
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)
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// ParseURL no longer needs to be used by clients of this library since supplying a URL as a
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// connection string to sql.Open() is now supported:
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//
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// sql.Open("postgres", "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full")
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//
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// It remains exported here for backwards-compatibility.
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//
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// ParseURL converts a url to a connection string for driver.Open.
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// Example:
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//
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// "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full"
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//
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// converts to:
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//
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// "user=bob password=secret host=1.2.3.4 port=5432 dbname=mydb sslmode=verify-full"
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//
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// A minimal example:
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//
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// "postgres://"
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//
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// This will be blank, causing driver.Open to use all of the defaults
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func ParseURL(url string) (string, error) {
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u, err := nurl.Parse(url)
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if err != nil {
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return "", err
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}
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if u.Scheme != "postgres" && u.Scheme != "postgresql" {
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return "", fmt.Errorf("invalid connection protocol: %s", u.Scheme)
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}
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var kvs []string
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escaper := strings.NewReplacer(` `, `\ `, `'`, `\'`, `\`, `\\`)
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accrue := func(k, v string) {
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if v != "" {
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kvs = append(kvs, k+"="+escaper.Replace(v))
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}
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}
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if u.User != nil {
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v := u.User.Username()
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accrue("user", v)
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v, _ = u.User.Password()
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accrue("password", v)
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}
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if host, port, err := net.SplitHostPort(u.Host); err != nil {
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accrue("host", u.Host)
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} else {
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accrue("host", host)
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accrue("port", port)
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}
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if u.Path != "" {
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accrue("dbname", u.Path[1:])
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}
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q := u.Query()
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for k := range q {
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accrue(k, q.Get(k))
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}
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sort.Strings(kvs) // Makes testing easier (not a performance concern)
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return strings.Join(kvs, " "), nil
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}
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