added user creation and deploy as in BashModule

src/BashModule.cpp

@@ -6,6 +6,7 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <pwd.h>
 #include "BashModule.h"
 #include "BashManager.h"
 
@@ -21,26 +22,97 @@ BashModule::BashModule()
 int BashModule::executeScript(string serviceUsername)
 {
     //this method is called in deploy(), it executes the script deploy.sh if it exists
-    string deployscript="./services/"+serviceUsername+"/deploy.sh";
-    if(filesystem::exists(deployscript)){
-        pid_t pid = fork(); 
-        if (pid == -1) { 
-            cerr << "Error when forking." << endl; 
-            return -1; 
-        } else if (pid > 0) {  
-            int status;
-            waitpid(-1,&status,0);
-            if(status==-1){
-                cerr << "Error when executing " << deployscript << endl;
+    string deployScript="./services/"+serviceUsername+"/deploy.sh";
+    if(!filesystem::exists(deployScript)){
+        cout << "No deploy.sh script for this service.";
+        return 0;
+    } else {
+        //check that the file is of type regular
+        if (filesystem::status(deployScript).type()!=filesystem::file_type::regular){
+            cerr << "Error. The file deploy_user.sh is not regular." << endl;
+            return -1;
+        } else {
+            //check if the owner has the execute permission
+            if ((filesystem::status(deployScript).permissions() & filesystem::perms::owner_exec)==filesystem::perms::none){
+                cerr << "Error. The owner of file deploy_user.sh does not have permission to execute it. Please change the permission or remove/rename the file." << endl;
+                return -1;
+            }else{
+                //executing the script in a separate process
+                pid_t pid = fork(); 
+                if (pid == -1) { 
+                    cerr << "Error when forking." << endl; 
+                    return -1; 
+                } else if (pid > 0) { 
+                    //parent process 
+                    int status;
+                    waitpid(-1,&status,0);
+                    if(status==-1){
+                        cerr << "Error when executing " << deployScript << endl;
+                    }
+                    return status;
+                } else { 
+                    //child process
+                    if(execl("/bin/bash", "/bin/bash", "--noediting", "--noprofile", "--norc", deployScript.c_str(), (char *)0)==-1)
+                    {
+                        cerr << "Error in the execl call of " << deployScript << endl;
+                    }
+                } 
             }
-            cout << "status vaut " << status << endl;
-            return status;
-        } else { 
-            if(execl("/bin/bash", "/bin/bash", "--noediting", "--noprofile", "--norc", deployscript.c_str(), (char *)0)==-1)
-            {
-                cerr << "Error in the execl call of " << deployscript << endl;
+        }
+        return 0;
+    }
+}
+
+int BashModule::executeScriptAs(string serviceUsername)
+{
+    //this method is called in deploy(), it executes the script deploy_user.sh if it exists, as the user associated with the service
+    string deployAsScript="./services/"+serviceUsername+"/deploy_user.sh";
+    //check that the file exists
+    if(!filesystem::exists(deployAsScript)){
+        cout << "No deploy_user.sh script for this service.";
+        return 0;
+    } else {
+        //check that the file is of type regular
+        if (filesystem::status(deployAsScript).type()!=filesystem::file_type::regular){
+            cerr << "Error. The file deploy_user.sh is not regular." << endl;
+            return -1;
+        } else {
+            //check if the owner has the execute permission
+            if ((filesystem::status(deployAsScript).permissions() & filesystem::perms::owner_exec)==filesystem::perms::none){
+                cerr << "Error. The owner of file deploy_user.sh does not have permission to execute it. Please change the permission or remove/rename the file." << endl;
+                return -1;
             }
-        } 
+        }
+        //getting the connection information for the user
+        struct passwd * p=getpwnam(serviceUsername.c_str());
+        if (p==NULL){
+            cerr << "Error. The user dedicated to the service is not found when trying to execute the bash script." << endl;
+            return -1;
+        }else{          
+            //executing the script in a separate process
+            pid_t pid = fork(); 
+            if (pid == -1) { 
+                cerr << "Error when forking." << endl; 
+                return -1; 
+            } else if (pid > 0) { 
+                //parent process 
+                int status;
+                waitpid(-1,&status,0);
+                if(status==-1){
+                    cerr << "Error when executing " << deployAsScript << endl;
+                }
+                return status;
+            } else { 
+                //child process
+                //executing as the user corresponding to the service
+                setgid(p->pw_gid);
+                setuid(p->pw_uid);
+                if(execl("/bin/bash", "/bin/bash", "--noediting", "--noprofile", "--norc", deployAsScript.c_str(), serviceUsername, (char *)0)==-1)
+                {
+                    cerr << "Error in the execl call of " << deployAsScript << endl;
+                }
+            } 
+        }       
     }
     return 0;
 }
@@ -54,7 +126,13 @@ int BashModule::prepare()
 int BashModule::deploy (string serviceUsername)
 {
     cout << "deploy in bash module called" << endl;
-    executeScript(serviceUsername);
+    if (executeScript(serviceUsername)!=0){
+        cerr << "Error in BashModule::deploy." << endl;
+        return -1;
+    }else if (executeScriptAs(serviceUsername)!=0){
+        cerr << "Error in BashModule::deploy." << endl;
+        return -1;
+    }   
 	return 0;		
 }
 

src/main.cpp

@@ -72,7 +72,6 @@ int deployAll(){
 
 int deployService(string serviceUsername){
     //this method deploys indicated service if it is on this server
-    //TO DO: faire des boucles if cohérentes
     if (isServiceOnServer(serviceUsername)==0){
         //bash user creation
         if(int userCreated = createUser(serviceUsername);userCreated!=0){

testenv/services/test.sh8s.sh/deploy_user.sh

@@ -1,3 +1,4 @@
 #!/bin/bash
 set -euo pipefail
-git_update.sh -r -d "$HTTP_DIR" "$GIT_SOURCE_REPO"
+#git_update.sh -r -d "$HTTP_DIR" "$GIT_SOURCE_REPO"
+touch done2