initial comment of first lines

2f011093 · Hahn Axel (hahn) · 2f011093 · 2f011093 · 2f011093 · 2f011093
Commit 2f011093 authored 7 months ago by Hahn Axel (hahn)
--- a/.gitignore
+++ b/.gitignore
+data/emaildata.txt
--- a/classes/emailcatcher.class.php
+++ b/classes/emailcatcher.class.php
+<?php
+
+class emailcatcher
+{
+
+    protected string $sMailData='emaildata.txt';
+
+    protected string $sId='';
+    protected array $aSelectedEmail=[];
+
+
+    public function __construct()
+    {
+        $this->sMailData=dirname(__DIR__) . '/data/' . $this->sMailData;
+        // $this->_readEmails();
+    }
+
+    // ------------------------------------------------------------------
+    // STORE NEW EMAIL
+    // ------------------------------------------------------------------
+
+    /**
+     * Fetch email of a single email from stdin and store it.
+     * It returns the return value of file_put_contents().
+     * 
+     * @return bool|int
+     */
+    public function catchEmail(){
+        $fp = fopen('php://stdin', 'rb');
+
+        $sMaildata='';
+        while (!feof($fp)) {
+            $sMaildata.=fgets($fp, 4096);
+        }
+        fclose($fp);
+
+        return $this->storeEmail($sMaildata);
+    }
+
+    /**
+     * Store a new email. 
+     * It returns the return value of file_put_contents().
+     * 
+     * @param string $sMaildata  maildata with header and body
+     * @return bool|int
+     */
+    public function storeEmail($sMaildata): bool|int
+    {
+        $sLogentry=json_encode(["date"=>date("Y-m-d H:i:s"), "mail"=>$sMaildata])."\n";
+        return file_put_contents($this->sMailData, $sLogentry, FILE_APPEND | LOCK_EX);
+    }
+
+    // ------------------------------------------------------------------
+    // READ STORED DATA
+    // ------------------------------------------------------------------
+
+
+    protected function _readEmails(string $sEmail2Show=''): array
+    {
+        if(!file_exists($this->sMailData)){
+            return [];
+        }
+        foreach(file($this->sMailData) as $line) {
+
+            $aLinedata=json_decode($line, true);
+            [$sHead, $sBody] = explode("\r\n\r\n", $aLinedata['mail']);
+            
+            $sHead="\n$sHead";
+            preg_match('/\nfrom: (.*)/i', $sHead, $aFrom);
+            preg_match('/\nto: (.*)/i', $sHead, $aTo);
+            preg_match('/\ncc: (.*)/i', $sHead, $aCc);
+            preg_match('/\nbcc: (.*)/i', $sHead, $aBcc);
+            preg_match('/\nsubject: (.*)/i', $sHead, $aSubject);
+            preg_match('/\Content-Type: (.*)/i', $sHead, $aContentType);
+
+            $aEntry=[
+                "date" => $aLinedata['date'],
+                "from" => $aFrom[1] ?? false,
+                "to" => $aTo[1] ?? false,
+                "cc" => $aCc[1] ?? false,
+                "bcc" => $aBcc[1] ?? false,
+                "subject" => $aSubject[1] ?? false,
+                "contentType" => $aContentType[1] ?? false,
+            ];
+            $sId=md5($aEntry['date'].' - to '.$aEntry['to'].': '.$aEntry['subject']);
+            $aEntry['id']=$sId;
+
+            if($sId==$sEmail2Show){
+                $aEntry['head']=$sHead;
+                $aEntry['body']=$sBody;
+                return $aEntry;                    
+            }
+            $aEmails[$aLinedata['date']]=$aEntry;
+        }
+        krsort($aEmails);
+        return $aEmails;
+    }
+
+    /**
+     * Get a list of emails to render an inbox like selection.
+     * It doesn't contain header and body - just metadata
+     * 
+     * @return array
+     */
+    public function readEmails(): array
+    {
+        return $this->_readEmails();
+    }
+
+    // ------------------------------------------------------------------
+    // SINGLE EMAIL
+    // ------------------------------------------------------------------
+
+    /**
+     * Set a single email by id.
+     * It returns a bool for success: false = failed
+     * 
+     * @param string $sId
+     * @return bool
+     */
+    public function setId(string $sId): bool{
+        $this->sId=$sId;
+        $this->aSelectedEmail=$this->_readEmails($sId);
+
+        if(! isset($this->aSelectedEmail['id'])){
+            $this->sId='';
+            $this->aSelectedEmail=[];
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Get hash for a single email with all metadata and body
+     * @param string  $sEmail2Show  optional: email id to show
+     * @return array
+     */
+    public function getEmail($sEmail2Show=''): array
+    {
+        if($sEmail2Show){
+            $this->setId($sEmail2Show);
+        }
+        return $this->aSelectedEmail;
+    }
+
+    /**
+     * Get a Meta value of the selected email
+     * @param string $sField
+     * @return mixed
+     */
+    public function getField(string $sField): mixed
+    {
+        return $this->aSelectedEmail[$sField] ?? null;
+    }
+
+    /**
+     * Get message body of the selected email
+     * @return mixed
+     */
+    public function getBody(): mixed
+    {
+        return $this->getField('body');
+    }
+
+    /**
+     * get message header of the selected email
+     * @return mixed
+     */
+    public function getHeader(): mixed
+    {
+        return $this->getField('head');
+    }
+}
\ No newline at end of file
--- a/data/.gitkeep
+++ b/data/.gitkeep
--- a/docs/10_Desciption.md
+++ b/docs/10_Desciption.md
+## Description
+
+This is a helper for a development environment for your PHP projects.
+
+It allows you to see sent emails and preview text only and html messages.
+
+This project has a script to fetch emails sent by `mail()`. It works as replacement for a postfix or sendmail deamon of your live system. It stores messages it into a single textfile.
+
+With a viewer you can browse fetched messages. You can view heder and body. For html messages there is an additional preview.
--- a/docs/20_Installation.md
+++ b/docs/20_Installation.md
+## Installation
+
+### Get the source
+
+Extract or git pull the sources below your webroot, eg. in subfolder `./vendor/emailcatcher/`
+
+```text
+cd [WEBROOT]
+cd vendor
+git clone [URL] emailcatcher
+```
+
+### Enable fetching emails
+
+In the php.ini in section `[PHP]` add a value for sendmail_path:
+
+```ini
+[PHP]
+...
+sendmail_path = "[WEBROOT]/vendor/emailcatcher/php-sendmail.php"
+```
+
+### Test sending an email
+
+If you have no php script that sends an email you can create a test file like this:
+
+```php
+<?php
+$sTO="somebody@example.com";
+$sSUBJECT="My subject - ".date("Y-m-d H:i:s");
+$sBODY="Hello you,
+
+I am just testing to fetch the email...
+";
+
+$ret = mail($sTO, $sSUBJECT, $sBODY);
+var_dump($ret);  // (bool)true
+```
+
+... and open it in the browser to "send" the email.
+
+In `[WEBROOT]/vendor//emailcatcher/data/` it creates a textfile if the fetching was successful.
+
+This will create a data file below `./vendor/emailcatcher/data/`.
+
+### Exlude mail data file
+
+If you extracted the sources (if no git clone was used):
+Exclude the file `vendor/emailcatcher/data/emaildata.txt` from commit into your project (eg. for git add it in the .gitignore file).
--- a/docs/30_Usage.md
+++ b/docs/30_Usage.md
+## Usage
+
+### Web ui
+
+To browse emails and view each message open <http://localhost/vendor/emailcatcher/viewer.php>
+
+You see a list of emails.
+
+Click an email to view details of it including header and body.
+If an html email was detected then you get an additional button to preview as html.
+
+### Delete emails
+
+There is no delete button in the web ui. You can delete single emails removing its line in the file `./data/emaildata.txt`.
+To delete all emails you can delete `./data/emaildata.txt`.
--- a/docs/_index.md
+++ b/docs/_index.md
+<html>
+<div class="hero">
+    <h2>PHP emailcatcher</h2>
+    Fetch emails sent by mail() and browse them
+</div>
+</html>
+
+👤 Author: Axel Hahn; Institute for Medical Education; University of Bern \
+📄 Source: <https://git-repo.iml.unibe.ch/iml-open-source/__NAME__> \
+📜 License: GNU GPL 3.0 \
+📗 Docs: <https://os-docs.iml.unibe.ch/__NAME__/>
--- a/docs/config.json
+++ b/docs/config.json
+{
+    "title": "PHP emailcatcher",
+    "author": "Axel Hahn",
+    "tagline": "Fetch emails sent by mail() and browse them",
+    "ignore": {
+        "files": ["30_PHP-client/Plugins/Checks/_skeleton.md"],
+        "folders": ["99_Not_Ready"]
+    },
+    "html": {
+        "auto_toc": true,
+        "auto_landing": false,
+        "date_modified": false,
+        "jump_buttons": true,
+        "edit_on_github_": "iml-it/__PROJECT__/tree/master/docs",
+        "edit_on_": {
+            "name": "Gitlab",
+            "basepath": "https://git-repo.iml.unibe.ch/iml-open-source/__PROJECT__/tree/master/docs"
+        },
+        "links": {
+            "Git Repo": "__GITURL__",
+            "IML Opensource": "https://os-docs.iml.unibe.ch/"
+        },
+        "theme": "daux-blue",
+        "search": true
+    }
+}
--- a/docs/style.css
+++ b/docs/style.css
+/*
+    override css elements of daux.io blue theme
+    version 2023-11-10
+*/
+:root {
+    /* Axels Overrides */
+    --color-text: #234;
+    --link-color: #228;
+    --brand-color: var(--color-text);
+    --brand-background: var(--body-background);
+    --code-tag-border-color: #d8d8d8;
+    --hr-color: none;
+    --search-field-background: none;
+    --search-field-border-color: none;
+    --sidebar-background: var(--body-background);
+    --sidebar-border-color: none;
+    --sidebar-link-active-background: #e8f4f6;
+    --sidebar-link-active-background: #eee;
+    /* Axels custom values */
+    --axel_bg-toc: var(--body-background);
+    --axel_bg-toc-head: #f8f8f8;
+    --axel_brand-background: none;
+    --axel_brand-pre-background: rgb(255, 0, 51);
+    ;
+    --axel_brand-pre-background-hover: rgb(255, 0, 51);
+    ;
+    --axel_h1_header: none;
+    --axel_h1: #111;
+    --axel_h1-bg: none;
+    --axel_h1-bottom: 3px solid none;
+    --axel_h2: #222;
+    --axel_h2-bg: none;
+    --axel_h2-bottom: 0px solid #467;
+    --axel_h2-hero-bottom: 2px solid #912;
+    --axel_h3: #333;
+    --axel_h3-bottom: 0px solid #ddd;
+    --axel_h4: #444;
+    --axel_hero_bg: #f8f8f8;
+    --axel_img-border: 2px dashed #ccc;
+    --axel_nav-bg: #fcfcfc;
+    --axel_nav-buttomborder: #ddd;
+    --axel_pre-background: #f8f8f8;
+    --axel-th-background: #e0e4e8;
+    --axel-article-nav-border-top: 0px dotted #ddd;
+}
+
+.dark {
+    /* Axels Overrides */
+    --color-text: #c0c0c0;
+    --link-color: #88e;
+    --brand-color: var(--color-text);
+    --brand-background: var(--body-background);
+    --body-background: #101418;
+    --hr-color: none;
+    --code-tag-background-color_: #bcc;
+    --search-field-background: none;
+    --search-field-border-color: none;
+    --sidebar-background: var(--body-background);
+    --sidebar-border-color: none;
+    --sidebar-link-active-background: #333;
+    /* Axels custom values */
+    --axel_bg-toc: var(--body-background);
+    --axel_bg-toc-head: #333;
+    --axel_brand-background: none;
+    --axel_brand-pre-background: rgb(255, 0, 51);
+    ;
+    --axel_brand-pre-background-hover: rgb(255, 0, 51);
+    ;
+    --axel_h1_header: none;
+    --axel_h1: #578;
+    --axel_h1-bg: none;
+    --axel_h1-bottom: none;
+    --axel_h2: #467;
+    --axel_h2-bg: none;
+    --axel_h2-bottom: 0px solid #256;
+    --axel_h2-hero-bottom: 2px solid #712;
+    --axel_h3: #589;
+    --axel_h3-bottom: 0px solid #333;
+    --axel_hero_bg: #242424;
+    --axel_img-border: 2px dashed #555;
+    --axel_nav-bg: #242424;
+    --axel_nav-buttomborder: #555;
+    --axel_pre-background: #bcc;
+    --axel-th-background: #203038;
+    --axel-article-nav-border-top: 0px dotted #234;
+}
+
+/* ---------- left side ---------- */
+a.Brand::before {
+    background: var(--axel_brand-pre-background);
+    color: #fff;
+    font-family: arial;
+    font-weight: bold;
+    padding: 0.5em 0.3em;
+    content: 'IML';
+    margin-right: 0.4em;
+    float: left;
+}
+
+a.Brand:hover::before {
+    background: var(--axel_brand-pre-background-hover);
+}
+
+a.Brand {
+    background: var(--axel_brand-background);
+    font-size: 200%;
+    height: 4em;
+}
+
+/* ---------- page header: breadcrumb ---------- */
+.Page__header {
+    border: none;
+}
+
+.Page__header a {
+    color: var(--axel_h1_header);
+}
+
+.Page__header h1 {
+    font-size: 1.3em;
+}
+
+/* ---------- page content ---------- */
+.s-content {
+    padding-top: 1em;
+}
+
+.s-content h1 {
+    background: var(--axel_h1-bg);
+    color: var(--axel_h1);
+    font-size: 200%;
+    font-weight: bold;
+    margin-bottom: 2em;
+    margin-top: 2em;
+    border-bottom: var(--axel_h1-bottom);
+}
+
+.s-content h2 {
+    background: var(--axel_h2-bg);
+    color: var(--axel_h2);
+    font-size: 190%;
+    font-weight: bold;
+    margin-top: 4em;
+    border-bottom: var(--axel_h2-bottom);
+}
+
+h1:first-of-type {
+    margin-top: 0em;
+}
+
+h2:first-of-type {
+    margin-top: 0em;
+}
+
+img{
+    border: var(--axel_img-border);
+    border-radius: 1.5em;
+    padding: 0.7em;
+}
+
+.s-content h3 {
+    background: var(--axel_h3-bg);
+    color: var(--axel_h3);
+    font-size: 150%;
+    font-weight: bold;
+    margin-top: 3em;
+    border-bottom: var(--axel_h3-bottom);
+}
+
+
+.s-content > h4 {
+    color: var(--axel_h4);
+    font-size: 135%;
+    font-weight: bold;
+    margin: 2em 0;
+}
+
+.s-content .TableOfContentsContainer h4 {
+    margin: 1em 0;
+    font-size: 110%;
+    text-align: center;
+    background-color: rgba(0, 0, 0, 0.1);
+    padding: 0.3em;
+    font-weight: bold;
+    font-family: Arial;
+}
+ul.TableOfContents a{
+    color: var(--color-text);
+}
+.s-content pre {
+    background: var(--axel_pre-background);
+}
+
+/* FIX smaller fnt size in tables */
+.s-content table {
+    font-size: 1em;
+}
+
+.s-content table th {
+    background: var(--axel-th-background);
+}
+
+.s-content h3 code {
+    border: none;
+    background: none;
+}
+
+article nav {
+    border-top: var(--axel-article-nav-border-top);
+    margin: 8em 0 5em;
+}
+
+.Pager li>a {
+    padding: 1em 2em;
+}
+
+/* ---------- classes ---------- */
+.required {
+    color: #a42;
+}
+
+.optional {
+    color: #888;
+}
+
+div.hero {
+    background: var(--axel_hero_bg);
+    border-radius: 2em;
+    padding: 5em 2em;
+    text-align: center;
+    margin-bottom: 1.5em;
+}
+
+div.hero h2 {
+    color: var(--color-text);
+    background: none;
+    border-bottom: var(--axel_h2-hero-bottom);
+    font-size: 300%;
+    margin: 0 0 2em;
+}
+
+/* ---------- TOC ---------- */
+@media(min-width:1700px) {
+    .TableOfContentsContainer {
+        position: fixed;
+        right: 2em;
+        top: 1em;
+    }
+}
+
+.TableOfContentsContainer {
+    background-color: var(--axel_bg-toc);
+    padding: 0.5em;
+}
+
+.s-content .TableOfContentsContainer h4 {
+    background-color: var(--axel_bg-toc-head);
+    border-top-left-radius: 1em;
+    font-size: 1.1em;
+    margin: 0;
+    padding: 0;
+}
+
+.TableOfContentsContainer__content {
+    border-width: 1px;
+    font-size: 0.5em;
+}
+
+ul.TableOfContents ul {
+    list-style-type: none;
+    padding-left: 1em;
+}
+
+/* ----- Icons on links --- */
+
+.EditOn a::before{
+    content: '✏️ ';
+}
+
+.Links a[href^="https://github.com/"]::before {
+    content: '🌐 ';
+}
+
+.Links a[href^="https://git-repo.iml.unibe.ch/"]::before {
+    content: '🌐 ';
+}
+
+.Links a[href^="https://os-docs.iml.unibe.ch"]::before {
+    content: '📗 ';
+}
--- a/php-sendmail.php
+++ b/php-sendmail.php
+#!/usr/local/bin/php -q
+<?php
+
+require_once('classes/emailcatcher.class.php');
+
+// you will likely need to handle additional arguments such as "-f"
+// $args = $_SERVER['argv'];
+
+$oMail=new emailcatcher();
+$oMail->catchEmail();
+
+// return 0 to indicate acceptance of the message (not necessarily delivery)
+return 0;
--- a/readme.md
+++ b/readme.md
+# EMAIL CATCHER
+
+A helper for a development environment: This PHP class fetches emails sent by mail() command and offers a viewer to browse sent messages.
+
+Free software and Open Source from University of Bern :: IML - Institute of Medical Education
+
+📄 Source: TODO \
+📜 License: GNU GPL 3.0 \
+📗 Docs: TODO
+
--- a/viewer.css
+++ b/viewer.css
+
+body{
+    background-color: #f8f8f8;
+    color: #333;
+    font-family: Arial, Helvetica, sans-serif;
+    font-size: 1.0m;
+    margin: 0;
+}
+a{
+    color: #44c;
+}
+a.button{
+    background-color: #cce;
+    background: linear-gradient(#ccd,  #dde);
+
+    border: 3px solid rgba(0,0,0,0.05);
+    box-shadow: 0 0 1em #ccc;
+    color: #444;
+    text-decoration: none;
+    padding: 0.2em 0.4em;
+    border-radius: 0.5em;
+    transition: all 0.2s linear;
+}
+a.button.close{
+    background-color: #ebb;
+    background: linear-gradient(#ebb,  #fca);
+    color: #633;
+}
+a.button:hover{
+    box-shadow: none;
+    border: 3px solid #fff;
+}
+footer{
+    background-color: #fff;
+    position: fixed; bottom: 0;
+    text-align: center;
+    width: 100%;
+    padding: 1em;
+    opacity: 0.6;
+}
+pre{
+    background-color: #e8ecec;
+    overflow: scroll;
+    padding: 1em;
+    border-radius: 1em;
+}
+.email{
+    border-bottom: 1px solid #ddd;
+    border-radius: 1em;
+    padding: 0.3em 1em;
+}
+.email.open{
+    background-color: #fff;
+}
+.email a{
+    color:#446;
+    text-decoration: none;
+}
+.email:hover{
+    background-color: #ddd;
+}
+.right{
+    float: right;
+}
+
+h1{
+    background-color: #ebb;
+    background: linear-gradient(to right, #9be, #fcc);
+    margin: 0;
+    padding-left: 0.5em;
+    border-bottom: 4px solid rgba(0,0,0,0.05);
+}
+h1 a{
+    color:#424;
+    text-decoration: none;
+}
+#messages{
+    background-color: #f0f0f0;
+    border: 2px solid rgba(0,0,0,0.1);
+    border-radius: 1em;
+    margin: 1em;
+    padding: 0.5em;
+}
+#singlemessage{
+    background-color: #f8f8f8;
+    box-shadow: 0 0 3em #555;
+    display: block;
+    padding: 0;
+    height: 100%;
+    overflow: scroll;
+    position: absolute;
+    right: 0;
+    top: 0em;
+    width: 50%;
+    border-bottom-left-radius: 2em;
+}
+#singlemessage table{
+    background-color: #cdc;
+    background: linear-gradient(to right, #cec, #cee);
+    width: 100%;
+    padding: 0.5em;
+    border-bottom: 4px solid rgba(0,0,0,0.05);
+}
+#singlemessage .content{
+    padding: 0.5em;
+}
\ No newline at end of file
--- a/viewer.php
+++ b/viewer.php
+<?php
+
+require_once('classes/emailcatcher.class.php');
+
+
+// $sJsonFile='/tmp/mailin.txt.json';
+
+$sOpen=$_GET['open'] ?? '';
+$sShowHtml=$_GET['html'] ?? '';
+
+// ----------------------------------------------------------------------
+// FUNCTIONS
+// ----------------------------------------------------------------------
+
+
+
+function showEmail($sId)
+{
+    $sReturn='';
+    $oMail=new emailcatcher();
+    if(!$oMail->setId($sId)){
+        $sReturn.="❌ ERROR: wrong email id: $sId<br>";
+    } else {
+
+        $bIsHtml=strstr( $oMail->getBody(), '<html>');
+        $sReturn.= '<div id="singlemessage">
+            <table>
+                <tr><td>🕜 DATE</td><td>'.$oMail->getField('date')
+                    .'<span class="right"><a href="?" class="button close">❌ Close</a></span>
+                </td></tr>
+                <tr><td>👤 TO</td><td>'.$oMail->getField('to').'</td></tr>
+                <tr><td colspan=2><strong>'.$oMail->getField('subject').'</strong></td></tr>
+            </table>
+            <br>
+            <div class="content">
+                📜 Header:<br>
+                <pre>'.$oMail->getHeader().'</pre>
+                <br>🗨️ '
+                .($bIsHtml
+                    ? '<a href="?open='.$sId.'&html=1" class="button">👁️ Show message as HTML</a><br><br>'
+                    : 'Text only:'
+                )
+                .'<pre>'.htmlentities($oMail->getBody()).'</pre>'
+                .'<br>
+                <span class="right"><a href="?" class="button close">❌ Close</a></span><br>
+                <br>'
+            .'</div>'
+        .'</div>'
+        ;
+    }
+    return $sReturn;
+}
+
+function showHtmlEmail($sId): void
+{
+    $oMail=new emailcatcher();
+    echo '<button onclick="history.back();return false;">back</button><br>';
+    if(!$oMail->setId($sId)){
+        echo "❌ ERROR: wrong email id: $sId<br>";
+    } else {
+        echo $oMail->getBody();
+        die();
+    }
+}
+// ----------------------------------------------------------------------
+// MAIN
+// ----------------------------------------------------------------------
+
+$oMail=new emailcatcher();
+$aEmails=$oMail->readEmails();
+
+$sOut='';
+$sMessage='';
+
+if(!count($aEmails)){
+    $sOut='❌ No email was found.<br>';
+} else {
+
+    // get a single email if id was given.
+    if ($sOpen){
+        if($sShowHtml=="1"){
+            showHtmlEmail($sOpen);
+        }
+        $sMessage=showEmail($sOpen);    
+    }
+
+    $sOut='Messages: <strong>'.count($aEmails).'</strong><br>';
+
+    foreach($aEmails as $aEmail){
+
+        $sId=$aEmail['id'];
+
+        $sOut.='
+        <div id="'.$sId.'" class="email'.($sId==$sOpen ? ' open':'').'">
+            '.(
+                $sId!=$sOpen
+                    ? '✉️ <a href="?open='.$sId.'">'.$aEmail['date'].' - to '.$aEmail['to'].': '.$aEmail['subject'].'</a>'
+                    : '🔶 '. $aEmail['date'].' - to '.$aEmail['to'].': '.$aEmail['subject']
+            )
+        .'</div>';
+
+    }
+}
+
+
+
+// write html page
+
+echo "<!doctype html>
+<html>
+<head>
+    <title>Email catcher :: viewer</title>
+    <link rel=\"stylesheet\" href=\"viewer.css\">
+</head>
+<body>
+    <h1><a href=\"?\">🕶️ Email catcher :: viewer</a></h1>
+
+    <div id=\"messages\">$sOut</div>
+
+    <footer>
+        Email catcher
+        📄 <a href=\"\">source</a>
+        📗 <a href=\"\">docs</a>
+    </footer>
+
+    $sMessage
+
+</body>
+</html>
+";
+
+// ----------------------------------------------------------------------