From 3fbb3dad7861871a5d1c583c453a50ae6f7264ce Mon Sep 17 00:00:00 2001
From: myvesta <38690722+myvesta@users.noreply.github.com>
Date: Sat, 15 Apr 2023 16:38:53 +0200
Subject: [PATCH] myvesta php replacement for gnu 'sed' (but without regular
 expression)

---
 func/bash-to-php-interpreter.php |  3 +++
 func/main.php                    | 20 ++++++++++++--------
 func/string.php                  | 26 +++++++++++++++++++++++---
 3 files changed, 38 insertions(+), 11 deletions(-)

diff --git a/func/bash-to-php-interpreter.php b/func/bash-to-php-interpreter.php
index baf9475e..09c9c499 100644
--- a/func/bash-to-php-interpreter.php
+++ b/func/bash-to-php-interpreter.php
@@ -29,11 +29,13 @@ if (!function_exists($func)) {
 
 $insert_stdin_at_position=false;
 if ($func=="myvesta_grep") $insert_stdin_at_position=1;
+if ($func=="myvesta_sed") $insert_stdin_at_position=2;
 
 $params=array();
 
 $added=0;
 $stdin_content='';
+$myvesta_stdin_from_file='';
  $myvesta_stdin_return_not_found=false;
 if ($myvesta_stdin!='' && $insert_stdin_at_position===false) {$params[]=$myvesta_stdin; $added++;}
 
@@ -51,6 +53,7 @@ if ($insert_stdin_at_position!=false) {
             $myvesta_stdin='';
         } else {
             $myvesta_stdin=file_get_contents($file_or_stdin);
+            $myvesta_stdin_from_file=$file_or_stdin;
         }
     }
     if (isset($params[$insert_stdin_at_position])) array_splice($params, $insert_stdin_at_position, 0, array($myvesta_stdin));
diff --git a/func/main.php b/func/main.php
index b521ea2e..967fb8fb 100644
--- a/func/main.php
+++ b/func/main.php
@@ -1,6 +1,7 @@
 <?php
 
 $myvesta_exit_on_error=true;
+$myvesta_quiet_mode=0;
 define('MYVESTA_ERROR_PERMISSION_DENIED', 1);
 define('MYVESTA_ERROR_MISSING_ARGUMENTS', 2);
 define('MYVESTA_ERROR_FILE_DOES_NOT_EXISTS', 3);
@@ -8,19 +9,22 @@ define('MYVESTA_ERROR_STRING_NOT_FOUND', 4);
 define('MYVESTA_ERROR_GENERAL', 5);
 
 function myvesta_echo($str) {
-    global $myvesta_echo_done, $myvesta_last_echo;
+    global $myvesta_echo_done, $myvesta_last_echo, $myvesta_quiet_mode;
+    if ($myvesta_quiet_mode==1) return;
     $myvesta_echo_done=true;
     $myvesta_last_echo=$str;
     echo $str;
 }
 
 function myvesta_exit($code, $echo='') {
-    global $SHLVL, $myvesta_echo_done, $myvesta_last_echo;
+    global $SHLVL, $myvesta_echo_done, $myvesta_last_echo, $myvesta_quiet_mode;
     // myvesta_echo ("==================== ".$argv[0].": ".$code." ====================\n");
-    if ($echo!='') myvesta_echo($echo);
-    if ($SHLVL<3 && $myvesta_echo_done==true) {
-        $last_char=substr($myvesta_last_echo, -1, 1);
-        if ($last_char!="\n") echo "\n";
+    if ($myvesta_quiet_mode!=1) {
+        if ($echo!='') myvesta_echo($echo);
+        if ($SHLVL<3 && $myvesta_echo_done==true) {
+            $last_char=substr($myvesta_last_echo, -1, 1);
+            if ($last_char!="\n") echo "\n";
+        }
     }
     exit($code);
 }
@@ -29,8 +33,8 @@ $myvesta_current_user=exec('whoami', $myvesta_output, $myvesta_return_var);
 if ($myvesta_current_user != 'root') {myvesta_echo ("ERROR: You must be root to execute this script"); myvesta_exit(1);}
 
 function myvesta_throw_error($code, $message) {
-    global $myvesta_exit_on_error;
-    if ($message!=='') myvesta_echo ("ERROR: ".$message);
+    global $myvesta_exit_on_error, $myvesta_quiet_mode;
+    if ($message!=='' && $myvesta_quiet_mode!=1) myvesta_echo ("ERROR: ".$message);
     if ($myvesta_exit_on_error) myvesta_exit($code);
     return $code;
 }
diff --git a/func/string.php b/func/string.php
index 8445195f..e4ba2a5f 100644
--- a/func/string.php
+++ b/func/string.php
@@ -75,9 +75,10 @@ function myvesta_strip_in_file_between_including_borders($file, $left, $right) {
 // --- mixed functions ---
 
 function myvesta_grep($find, $file_or_stdin, $count=0, $quiet=0) {
-    global $myvesta_stdin, $myvesta_stdin_return_not_found;
-    if ($count=='-c') {$count=1; $quiet=0;}
-    if ($count=='-q') {$count=0; $quiet=1;}
+    global $myvesta_stdin, $myvesta_stdin_return_not_found, $myvesta_quiet_mode;
+    if ($count==='-c') {$count=1; $quiet=0;}
+    if ($count==='-q') {$count=0; $quiet=1;}
+    $myvesta_quiet_mode=$quiet;
     //echo "find          = " . $find."\n"; echo "file_or_stdin = " . $file_or_stdin."\n"; echo "count         = " . $count."\n"; echo "quiet         = " . $quiet."\n"; exit;
     if ($myvesta_stdin_return_not_found==true) {
         if ($count==1) return myvesta_throw_error (MYVESTA_ERROR_STRING_NOT_FOUND, "0");
@@ -106,6 +107,25 @@ function myvesta_grep($find, $file_or_stdin, $count=0, $quiet=0) {
     return $buf;
 }
 
+function myvesta_sed($find, $replace, $file_or_stdin) {
+    global $myvesta_stdin, $myvesta_stdin_return_not_found, $myvesta_stdin_from_file;
+    //echo "find            = " . $find."\n"; echo "replace         = " . $replace."\n"; echo "file_or_stdin   = " . $file_or_stdin."\n"; echo "stdin_from_file = " . $myvesta_stdin_from_file."\n"; exit;
+    if ($myvesta_stdin_return_not_found==true) {
+        return myvesta_throw_error (MYVESTA_ERROR_STRING_NOT_FOUND, "File not found");
+    }
+
+    if (strpos($file_or_stdin, $find)===false) return myvesta_throw_error (MYVESTA_ERROR_STRING_NOT_FOUND, "String '$find' not found");
+
+    $file_or_stdin=str_replace($find, $replace, $file_or_stdin);
+    if ($myvesta_stdin_from_file!='') {
+        $r=file_put_contents($myvesta_stdin_from_file, $file_or_stdin);
+        if ($r===false) return false;
+    } else {
+        myvesta_echo ($file_or_stdin);
+    }
+    return true;
+}
+
 // --- string functions ---
 
 function myvesta_str_get_between (&$text, $left_substring, $right_substring, $start=0, $return_left_substring=0, $return_right_substring=0, $left_substring_necessary=1, $right_substring_necessary=1) {