[CLOYSTER-96] Implement Postfix

example.answerfile.ini

@@ -85,3 +85,21 @@ bmc_address=10.0.0.2
 #bmc_password=admin
 #bmc_serialport=0
 #bmc_serialspeed=9600
+
+#[postfix]
+# Profile must be 'local', 'relay' or 'sasl'.
+# You must fill the SMTP values in their subsections
+#profile=local
+#destination=example.com
+#smtpd_tls_cert_file = /etc/pki/tls/certs/cluster.example.com.cer
+#smtpd_tls_key_file = /etc/pki/tls/private/cluster.example.com.key
+
+#[postfix.sasl]
+#server=smtp.example.com
+#port=587
+#username=relayUser
+#password=examplePassword
+
+#[postfix.relay]
+#server=mx.example.com
+#port=25

include/cloysterhpc/answerfile.h

@@ -8,6 +8,7 @@
 
 #include <boost/asio.hpp>
 #include <cloysterhpc/inifile.h>
+#include <cloysterhpc/mailsystem/postfix.h>
 #include <optional>
 #include <vector>
 
@@ -72,6 +73,26 @@ class AnswerFile {
         std::vector<AFNode> nodes;
     };
 
+    struct AFPostfix {
+        struct SASL {
+            std::string username;
+            std::string password;
+        };
+        struct SMTP {
+            std::string server;
+            int port;
+            std::optional<SASL> sasl;
+            // Relay doesn't need to have a specific struct because it only
+            // needs 'server' and 'port'.
+        };
+        bool enabled = false;
+        std::vector<std::string> destination;
+        Postfix::Profile profile;
+        std::optional<SMTP> smtp;
+        std::filesystem::path cert_file;
+        std::filesystem::path key_file;
+    };
+
     std::filesystem::path m_path;
     inifile m_ini;
 
@@ -85,6 +106,7 @@ class AnswerFile {
     void loadHostnameSettings();
     void loadSystemSettings();
     void loadNodes();
+    void loadPostfix();
     AFNode loadNode(const std::string& section);
     AFNode validateNode(AFNode node);
 
@@ -97,6 +119,7 @@ class AnswerFile {
     AFHostname hostname;
     AFSystem system;
     AFNodes nodes;
+    AFPostfix postfix;
 
     explicit AnswerFile(const std::filesystem::path& path);
 };

include/cloysterhpc/functions.h

@@ -70,6 +70,8 @@ void backupFile(std::string_view filename);
 void changeValueInConfigurationFile(
     const std::string&, const std::string&, std::string_view);
 void addStringToFile(std::string_view filename, std::string_view string);
+std::string findAndReplace(const std::string& source, const std::string& find,
+    const std::string& replace);
 
 } /* namespace cloyster */
 

include/cloysterhpc/inifile.h

@@ -14,6 +14,7 @@ class inifile {
     CSimpleIniA ini;
 
 public:
+    void loadData(const std::string& data);
     void loadFile(const std::string& filepath);
     void loadFile(std::string_view filepath);
     void loadFile(const std::filesystem::path& filepath);

include/cloysterhpc/mailsystem/postfix.h

@@ -16,17 +16,33 @@ class Postfix {
 private:
     Profile m_profile;
     std::optional<std::string> m_hostname {};
+    std::optional<std::string> m_domain {};
+    std::optional<std::string> m_smtp_server {};
+    std::optional<std::vector<std::string>> m_destination {};
     std::optional<std::uint16_t> m_port {};
     std::optional<std::string> m_username {};
     std::optional<std::string> m_password {};
+    std::optional<std::filesystem::path> m_cert_file {};
+    std::optional<std::filesystem::path> m_key_file {};
+    void install();
+    void createFiles();
+    void configureSASL();
+    void configureRelay();
 
 public:
     [[nodiscard]] const Profile& getProfile() const;
     [[maybe_unused]] void setProfile(Profile profile);
-
     [[nodiscard]] const std::optional<std::string>& getHostname() const;
+
     void setHostname(const std::optional<std::string>& hostname);
 
+    const std::optional<std::vector<std::string>>& getDestination() const;
+    void setDestination(
+        const std::optional<std::vector<std::string>>& destination);
+
+    [[nodiscard]] const std::optional<std::string>& getDomain() const;
+    void setDomain(const std::optional<std::string>& domain);
+
     [[nodiscard]] const std::optional<std::uint16_t>& getPort() const;
     void setPort(const std::optional<std::uint16_t>& port);
 
@@ -36,6 +52,24 @@ class Postfix {
     [[nodiscard]] const std::optional<std::string>& getPassword() const;
     void setPassword(const std::optional<std::string>& password);
 
+    [[nodiscard]] const std::optional<std::string>& getSMTPServer() const;
+    void setSMTPServer(const std::optional<std::string>& smtp_server);
+
+    [[nodiscard]] const std::optional<std::filesystem::path>&
+    getCertFile() const;
+    void setCertFile(const std::optional<std::filesystem::path>& cert_file);
+
+    [[nodiscard]] const std::optional<std::filesystem::path>&
+    getKeyFile() const;
+    void setKeyFile(const std::optional<std::filesystem::path>& cert_file);
+
+    void setup();
+    void enable();
+    void disable();
+    void start();
+    void restart();
+    void stop();
+
     explicit Postfix(Profile profile);
 };
 

include/cloysterhpc/services/shell.h

@@ -34,6 +34,7 @@ class Shell : public Execution {
     void configureTimeService(const std::list<Connection>&);
     void configureQueueSystem();
     void configureInfiniband();
+    void configureMailSystem();
 
     void removeMemlockLimits();
     void installDevelopmentComponents();