Replace GncFQQuoteSource api-key members with a bp::environment one.

libgnucash/app-utils/gnc-quotes.cpp

@@ -63,7 +63,9 @@
 
 static const QofLogModule log_module = "gnc.price-quotes";
 static const char* av_api_env = "ALPHAVANTAGE_API_KEY";
+static const char* av_api_key = "alphavantage-api-key";
 static const char* yh_api_env = "FINANCEAPI_API_KEY";
+static const char* yh_api_key = "yhfinance-api-key";
 
 namespace bl = boost::locale;
 namespace bp = boost::process;
@@ -131,8 +133,7 @@ class GncFQQuoteSource final : public GncQuoteSource
     std::string c_fq_wrapper;
     std::string m_version;
     StrVec m_sources;
-    std::string m_av_api_key;
-    std::string m_yh_api_key;
+    bp::environment m_env;
 public:
     GncFQQuoteSource();
     ~GncFQQuoteSource() = default;
@@ -141,7 +142,7 @@ public:
     QuoteResult get_quotes(const std::string&) const override;
 private:
     QuoteResult run_cmd (const StrVec& args, const std::string& json_string) const;
-
+    void set_api_key(const char* api_pref, const char* api_env);
 };
 
 static void show_quotes(const bpt::ptree& pt, const StrVec& commodities, bool verbose);
@@ -150,28 +151,9 @@ static std::string parse_quotesource_error(const std::string& line);
 
 static const std::string empty_string{};
 
-static inline std::string
-get_api_key(const char* prefskey, const char* envvar)
-{
-    std::string keyval{};
-    auto key = gnc_prefs_get_string ("general.finance-quote", prefskey);
-    if (!(key && *key))
-    {
-        g_free (key);
-        key = g_strdup(getenv(envvar));
-    }
-
-    if (key)
-    {
-        keyval = std::string(key);
-        g_free (key);
-    }
-    return keyval;
-}
-
 GncFQQuoteSource::GncFQQuoteSource() :
 c_cmd{bp::search_path("perl")},
-m_version{}, m_sources{}, m_av_api_key{}, m_yh_api_key{}
+m_version{}, m_sources{}, m_env{boost::this_process::environment()}
 {
     char *bindir = gnc_path_get_bindir();
     c_fq_wrapper = std::string(bindir) + "/finance-quote-wrapper";
@@ -203,10 +185,8 @@ m_version{}, m_sources{}, m_av_api_key{}, m_yh_api_key{}
     m_sources = std::move(sources);
     std::sort (m_sources.begin(), m_sources.end());
 
-    m_av_api_key = get_api_key("alphavantage-api-key", av_api_env);
-    if (m_av_api_key.empty())
-        PWARN("No Alpha Vantage API key set, currency quotes and other AlphaVantage based quotes won't work.");
-    m_yh_api_key = get_api_key("yhfinance-api-key", yh_api_env);
+    set_api_key(av_api_key, av_api_env);
+    set_api_key(yh_api_key, yh_api_env);
 }
 
 QuoteResult
@@ -228,13 +208,7 @@ GncFQQuoteSource::run_cmd (const StrVec& args, const std::string& json_string) c
         boost::asio::io_service svc;
 
         auto input_buf = bp::buffer (json_string);
-        auto curr_env{boost::this_process::environment()};
-        bp::environment new_env{curr_env};
 	bp::child process;
-	if (!m_av_api_key.empty())
-            new_env[av_api_env] = m_av_api_key;
-	if (!m_yh_api_key.empty())
-            new_env[yh_api_env] = m_yh_api_key;
         process = bp::child(c_cmd, args,
                             bp::std_out > out_buf,
                             bp::std_err > err_buf,
@@ -242,7 +216,7 @@ GncFQQuoteSource::run_cmd (const StrVec& args, const std::string& json_string) c
 #ifdef BOOST_WINDOWS_API
                             bp::windows::create_no_window,
 #endif
-                            new_env,
+                            m_env,
                             svc);
 
 	svc.run();
@@ -281,6 +255,24 @@ GncFQQuoteSource::run_cmd (const StrVec& args, const std::string& json_string) c
     return QuoteResult (cmd_result, std::move(out_vec), std::move(err_vec));
 }
 
+void
+GncFQQuoteSource::set_api_key(const char* api_key, const char* api_env)
+{
+    auto key = gnc_prefs_get_string("general.finance-quote", api_key);
+    if (key && *key)
+    {
+        m_env[api_env] = key;
+        g_free(key);
+    }
+    else
+    {
+        if (api_key == av_api_key && m_env.find(api_env) == m_env.end())
+            PWARN("No Alpha Vantage API key set, currency quotes and other "
+                  "AlphaVantage based quotes won't work.");
+        g_free(key);
+    }
+}
+
 /* GncQuotes implementation */
 GncQuotesImpl::GncQuotesImpl() : m_quotesource{new GncFQQuoteSource},
                                  m_sources{}, m_failures{},
@@ -1040,9 +1032,7 @@ GncQuotes::GncQuotes ()
     try
     {
         m_impl = std::make_unique<GncQuotesImpl>();
-    }
-    catch (const GncQuoteSourceError& err)
-    {
+    } catch (const GncQuoteSourceError &err) {
         throw(GncQuoteException(err.what()));
     }
 }