defaults_windows.go

Documentation: github.com/jackc/pgconn

     1  package pgconn
     2  
     3  import (
     4  	"os"
     5  	"os/user"
     6  	"path/filepath"
     7  	"strings"
     8  )
     9  
    10  func defaultSettings() map[string]string {
    11  	settings := make(map[string]string)
    12  
    13  	settings["host"] = defaultHost()
    14  	settings["port"] = "5432"
    15  
    16  	// Default to the OS user name. Purposely ignoring err getting user name from
    17  	// OS. The client application will simply have to specify the user in that
    18  	// case (which they typically will be doing anyway).
    19  	user, err := user.Current()
    20  	appData := os.Getenv("APPDATA")
    21  	if err == nil {
    22  		// Windows gives us the username here as `DOMAIN\user` or `LOCALPCNAME\user`,
    23  		// but the libpq default is just the `user` portion, so we strip off the first part.
    24  		username := user.Username
    25  		if strings.Contains(username, "\\") {
    26  			username = username[strings.LastIndex(username, "\\")+1:]
    27  		}
    28  
    29  		settings["user"] = username
    30  		settings["passfile"] = filepath.Join(appData, "postgresql", "pgpass.conf")
    31  		settings["servicefile"] = filepath.Join(user.HomeDir, ".pg_service.conf")
    32  		sslcert := filepath.Join(appData, "postgresql", "postgresql.crt")
    33  		sslkey := filepath.Join(appData, "postgresql", "postgresql.key")
    34  		if _, err := os.Stat(sslcert); err == nil {
    35  			if _, err := os.Stat(sslkey); err == nil {
    36  				// Both the cert and key must be present to use them, or do not use either
    37  				settings["sslcert"] = sslcert
    38  				settings["sslkey"] = sslkey
    39  			}
    40  		}
    41  		sslrootcert := filepath.Join(appData, "postgresql", "root.crt")
    42  		if _, err := os.Stat(sslrootcert); err == nil {
    43  			settings["sslrootcert"] = sslrootcert
    44  		}
    45  	}
    46  
    47  	settings["target_session_attrs"] = "any"
    48  
    49  	settings["min_read_buffer_size"] = "8192"
    50  
    51  	return settings
    52  }
    53  
    54  // defaultHost attempts to mimic libpq's default host. libpq uses the default unix socket location on *nix and localhost
    55  // on Windows. The default socket location is compiled into libpq. Since pgx does not have access to that default it
    56  // checks the existence of common locations.
    57  func defaultHost() string {
    58  	return "localhost"
    59  }
    60
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