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fix: explicitly use the POSTGRES_USER #13

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merged 1 commit into from
Nov 24, 2024
Merged

fix: explicitly use the POSTGRES_USER #13

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18 changes: 11 additions & 7 deletions ensure_role_and_database_exists.c
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Original file line number Diff line number Diff line change
Expand Up @@ -12,31 +12,35 @@ static ClientAuthentication_hook_type original_client_auth_hook = NULL;

static void ensure_role_and_database_exists(Port *port, int status) {
char *cmd;
char *postgres_user;
char *role_attributes;

if (original_client_auth_hook) {
original_client_auth_hook(port, status);
}

// don't infinitely recurse
if (strcmp(port->database_name, "postgres") == 0 && strcmp(port->user_name, "postgres") == 0) {
postgres_user = getenv("POSTGRES_USER");

fprintf(stderr, "handling connection for username '%s' to database '%s'\n", port->user_name, port->database_name);

// don't infinitely recurse when connecting as superuser
if (strcmp(port->database_name, postgres_user) == 0 && strcmp(port->user_name, postgres_user) == 0) {
return;
}

role_attributes = getenv("POSTGRES_ROLE_ATTRIBUTES");

fprintf(stderr, "ensuring user_name '%s' exists with attributes '%s'\n", port->user_name, role_attributes);
asprintf(&cmd,
"echo \"SELECT 'CREATE ROLE %s WITH %s' WHERE NOT EXISTS (SELECT FROM pg_roles WHERE rolname = '%s')\\gexec\" | psql",
port->user_name, role_attributes, port->user_name);
"echo \"SELECT 'CREATE ROLE %s WITH %s' WHERE NOT EXISTS (SELECT FROM pg_roles WHERE rolname = '%s')\\gexec\" | psql -U %s -d %s",
port->user_name, role_attributes, port->user_name, postgres_user, postgres_user);
system(cmd);
free(cmd);

fprintf(stderr, "ensuring database '%s' exists\n", port->database_name);

asprintf(&cmd,
"echo \"SELECT 'CREATE DATABASE %s WITH OWNER = %s' WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = '%s')\\gexec\" | psql",
port->database_name, port->user_name, port->database_name);
"echo \"SELECT 'CREATE DATABASE %s WITH OWNER = %s' WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = '%s')\\gexec\" | psql -U %s -d %s",
port->database_name, port->user_name, port->database_name, postgres_user, postgres_user);
system(cmd);
free(cmd);
}
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