From 15a1662ac5a6791de4a12989f8924211e11125af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miko=C5=82aj=20Pich?= <m.pich@outlook.com>
Date: Wed, 13 Dec 2017 22:15:39 +0100
Subject: [PATCH] Fake log integration (#39)

* Handle technical break error

* Add login by pass email with log host

* Use in FirstAccountLogin fully Vulcan facade

* Add SnP interface
---
 .idea/codeStyleSettings.xml                   |  6 +-
 api/build.gradle                              |  3 +-
 .../java/io/github/wulkanowy/api/SnP.java     | 36 +++++++++
 .../wulkanowy/api/StudentAndParent.java       | 45 ++++++++---
 .../java/io/github/wulkanowy/api/Vulcan.java  | 74 ++++++++++++++++---
 .../api/attendance/AttendanceStatistics.java  |  6 +-
 .../api/attendance/AttendanceTable.java       |  6 +-
 .../github/wulkanowy/api/exams/ExamsWeek.java |  8 +-
 .../wulkanowy/api/grades/GradesList.java      |  8 +-
 .../wulkanowy/api/grades/SubjectsList.java    |  8 +-
 .../io/github/wulkanowy/api/login/Login.java  | 58 ++++++++++-----
 .../api/login/VulcanOfflineException.java     |  4 +
 .../wulkanowy/api/notes/AchievementsList.java | 10 +--
 .../github/wulkanowy/api/notes/NotesList.java | 10 +--
 .../wulkanowy/api/school/SchoolInfo.java      |  8 +-
 .../wulkanowy/api/school/TeachersInfo.java    |  8 +-
 .../wulkanowy/api/timetable/Timetable.java    |  8 +-
 .../wulkanowy/api/user/BasicInformation.java  | 12 +--
 .../wulkanowy/api/user/FamilyInformation.java |  8 +-
 .../wulkanowy/api/StudentAndParentTest.java   |  3 +-
 .../io/github/wulkanowy/api/VulcanTest.java   | 43 ++++++++++-
 .../github/wulkanowy/api/login/LoginTest.java |  8 ++
 .../api/timetable/TimetableTest.java          |  9 +++
 .../api/login/PrzerwaTechniczna.html          | 23 ++++++
 .../services/VulcanSynchronizationTest.java   |  1 -
 .../CurrentAccountLoginTest.java              |  5 +-
 .../FirstAccountLoginTest.java                | 19 +----
 .../services/VulcanSynchronization.java       | 30 ++------
 .../synchronisation/CurrentAccountLogin.java  |  4 +-
 .../synchronisation/FirstAccountLogin.java    | 36 +++------
 .../wulkanowy/ui/login/LoginActivity.java     |  4 +-
 .../github/wulkanowy/ui/login/LoginTask.java  | 18 ++---
 .../github/wulkanowy/ui/main/RefreshTask.java |  8 +-
 .../ui/main/grades/GradesFragment.java        | 20 +++--
 app/src/main/res/values-pl/strings.xml        |  1 +
 app/src/main/res/values/strings.xml           |  1 +
 36 files changed, 372 insertions(+), 187 deletions(-)
 create mode 100644 api/src/main/java/io/github/wulkanowy/api/SnP.java
 create mode 100644 api/src/main/java/io/github/wulkanowy/api/login/VulcanOfflineException.java
 create mode 100644 api/src/test/resources/io/github/wulkanowy/api/login/PrzerwaTechniczna.html

diff --git a/.idea/codeStyleSettings.xml b/.idea/codeStyleSettings.xml
index 0be55418..f5bd97e6 100644
--- a/.idea/codeStyleSettings.xml
+++ b/.idea/codeStyleSettings.xml
@@ -60,9 +60,7 @@
           </extensions>
         </Objective-C-extensions>
         <XML>
-          <option name="XML_KEEP_LINE_BREAKS" value="false" />
-          <option name="XML_ALIGN_ATTRIBUTES" value="false" />
-          <option name="XML_SPACE_INSIDE_EMPTY_TAG" value="true" />
+          <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
         </XML>
         <codeStyleSettings language="XML">
           <option name="FORCE_REARRANGE_MODE" value="1" />
@@ -223,6 +221,6 @@
         </codeStyleSettings>
       </value>
     </option>
-    <option name="PREFERRED_PROJECT_CODE_STYLE" value="AndroidStyle" />
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
   </component>
 </project>
\ No newline at end of file
diff --git a/api/build.gradle b/api/build.gradle
index e376b94a..502b74d2 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -7,7 +7,6 @@ apply plugin: 'com.github.dcendents.android-maven'
 compileJava.options.encoding = "UTF-8"
 compileTestJava.options.encoding = "UTF-8"
 
-
 ext {
     PUBLISH_GROUP_ID = GROUP_ID
     PUBLISH_ARTIFACT_ID = 'api'
@@ -29,7 +28,7 @@ jacocoTestReport {
 }
 
 dependencies {
-    implementation 'org.jsoup:jsoup:1.10.3'
+    implementation 'org.jsoup:jsoup:1.11.2'
     implementation 'org.apache.commons:commons-lang3:3.6'
 
     testImplementation 'junit:junit:4.12'
diff --git a/api/src/main/java/io/github/wulkanowy/api/SnP.java b/api/src/main/java/io/github/wulkanowy/api/SnP.java
new file mode 100644
index 00000000..f89b71cf
--- /dev/null
+++ b/api/src/main/java/io/github/wulkanowy/api/SnP.java
@@ -0,0 +1,36 @@
+package io.github.wulkanowy.api;
+
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+
+import java.io.IOException;
+import java.util.List;
+
+import io.github.wulkanowy.api.login.NotLoggedInErrorException;
+
+public interface SnP {
+
+    void setProtocolSchema(String schema);
+
+    String getLogHost();
+
+    void setLogHost(String hostname);
+
+    String getSymbol();
+
+    String getId();
+
+    void storeContextCookies() throws IOException, NotLoggedInErrorException;
+
+    Cookies getCookiesObject();
+
+    String getRowDataChildValue(Element e, int index);
+
+    Document getSnPPageDocument(String url) throws IOException;
+
+    List<Semester> getSemesters() throws IOException;
+
+    List<Semester> getSemesters(Document gradesPage);
+
+    Semester getCurrentSemester(List<Semester> semesterList);
+}
diff --git a/api/src/main/java/io/github/wulkanowy/api/StudentAndParent.java b/api/src/main/java/io/github/wulkanowy/api/StudentAndParent.java
index dea8b868..06c2d38f 100644
--- a/api/src/main/java/io/github/wulkanowy/api/StudentAndParent.java
+++ b/api/src/main/java/io/github/wulkanowy/api/StudentAndParent.java
@@ -10,16 +10,20 @@ import java.util.List;
 
 import io.github.wulkanowy.api.login.NotLoggedInErrorException;
 
-public class StudentAndParent extends Api {
+public class StudentAndParent extends Api implements SnP {
 
-    private String startPageUrl = "https://uonetplus.vulcan.net.pl/{symbol}/Start.mvc/Index";
+    private static final String startPageUrl = "{schema}://uonetplus.{host}/{symbol}/Start.mvc/Index";
 
-    private String baseUrl = "https://uonetplus-opiekun.vulcan.net.pl/{symbol}/{ID}/";
+    private static final String baseUrl = "{schema}://uonetplus-opiekun.{host}/{symbol}/{ID}/";
 
     private static final String SYMBOL_PLACEHOLDER = "{symbol}";
 
     private static final String GRADES_PAGE_URL = "Oceny/Wszystkie";
 
+    protected String logHost = "vulcan.net.pl";
+
+    private String protocolSchema = "https";
+
     private String symbol;
 
     private String id;
@@ -34,16 +38,35 @@ public class StudentAndParent extends Api {
         this.id = id;
     }
 
-    public String getGradesPageUrl() {
-        return baseUrl + GRADES_PAGE_URL;
+    public void setProtocolSchema(String schema) {
+        this.protocolSchema = schema;
     }
 
-    public String getBaseUrl() {
-        return baseUrl;
+    public String getLogHost() {
+        return logHost;
+    }
+
+    public void setLogHost(String hostname) {
+        this.logHost = hostname;
     }
 
     public String getStartPageUrl() {
-        return startPageUrl;
+        return startPageUrl
+                .replace("{schema}", protocolSchema)
+                .replace("{host}", logHost)
+                .replace(SYMBOL_PLACEHOLDER, getSymbol());
+    }
+
+    public String getBaseUrl() {
+        return baseUrl
+                .replace("{schema}", protocolSchema)
+                .replace("{host}", logHost)
+                .replace(SYMBOL_PLACEHOLDER, getSymbol())
+                .replace("{ID}", getId());
+    }
+
+    public String getGradesPageUrl() {
+        return getBaseUrl() + GRADES_PAGE_URL;
     }
 
     public String getSymbol() {
@@ -60,11 +83,11 @@ public class StudentAndParent extends Api {
 
     public String getSnpPageUrl() throws IOException, NotLoggedInErrorException {
         if (null != getId()) {
-            return getBaseUrl().replace(SYMBOL_PLACEHOLDER, getSymbol()).replace("{ID}", getId());
+            return getBaseUrl();
         }
 
         // get url to uonetplus-opiekun.vulcan.net.pl
-        Document startPage = getPageByUrl(getStartPageUrl().replace(SYMBOL_PLACEHOLDER, getSymbol()));
+        Document startPage = getPageByUrl(getStartPageUrl());
         Element studentTileLink = startPage.select(".panel.linkownia.pracownik.klient > a").first();
 
         if (null == studentTileLink) {
@@ -79,7 +102,7 @@ public class StudentAndParent extends Api {
     }
 
     public String getExtractedIdFromUrl(String snpPageUrl) throws NotLoggedInErrorException {
-        String[] path = snpPageUrl.split("vulcan.net.pl/")[1].split("/");
+        String[] path = snpPageUrl.split(getLogHost() + "/")[1].split("/");
 
         if (4 != path.length) {
             throw new NotLoggedInErrorException();
diff --git a/api/src/main/java/io/github/wulkanowy/api/Vulcan.java b/api/src/main/java/io/github/wulkanowy/api/Vulcan.java
index fb965fb4..e6707e91 100644
--- a/api/src/main/java/io/github/wulkanowy/api/Vulcan.java
+++ b/api/src/main/java/io/github/wulkanowy/api/Vulcan.java
@@ -12,6 +12,7 @@ import io.github.wulkanowy.api.login.BadCredentialsException;
 import io.github.wulkanowy.api.login.Login;
 import io.github.wulkanowy.api.login.LoginErrorException;
 import io.github.wulkanowy.api.login.NotLoggedInErrorException;
+import io.github.wulkanowy.api.login.VulcanOfflineException;
 import io.github.wulkanowy.api.notes.AchievementsList;
 import io.github.wulkanowy.api.notes.NotesList;
 import io.github.wulkanowy.api.school.SchoolInfo;
@@ -26,29 +27,80 @@ public class Vulcan extends Api {
 
     private String symbol;
 
-    private StudentAndParent snp;
+    private SnP snp;
 
-    public void login(Cookies cookies, String symbol) {
+    private String protocolSchema = "https";
+
+    private String logHost = "vulcan.net.pl";
+
+    private String email;
+
+    public Vulcan login(Cookies cookies, String symbol) {
         this.cookies = cookies;
         this.symbol = symbol;
+
+        return this;
     }
 
-    public void login(String email, String password, String symbol)
-            throws BadCredentialsException, AccountPermissionException, LoginErrorException, IOException {
-        Login login = new Login(new Cookies());
-        String realSymbol = login.login(email, password, symbol);
+    public Vulcan login(String email, String password, String symbol)
+            throws BadCredentialsException, AccountPermissionException,
+            LoginErrorException, IOException, VulcanOfflineException {
+        Login login = getLoginObject();
+
+        setFullEndpointInfo(email);
+        login.setProtocolSchema(protocolSchema);
+        login.setLogHost(logHost);
+
+        String realSymbol = login.login(this.email, password, symbol);
 
         login(login.getCookiesObject(), realSymbol);
+
+        return this;
     }
 
-    public void login(String email, String password, String symbol, String id)
-            throws BadCredentialsException, AccountPermissionException, LoginErrorException, IOException {
+    public Vulcan login(String email, String password, String symbol, String id)
+            throws BadCredentialsException, AccountPermissionException,
+            LoginErrorException, IOException, VulcanOfflineException {
         login(email, password, symbol);
 
         this.id = id;
+
+        return this;
     }
 
-    public StudentAndParent getStudentAndParent() throws IOException, NotLoggedInErrorException {
+    public String getProtocolSchema() {
+        return protocolSchema;
+    }
+
+    public String getLogHost() {
+        return logHost;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public Login getLoginObject() {
+        return new Login(new Cookies());
+    }
+
+    public Vulcan setFullEndpointInfo(String email) {
+        String[] creds = email.split("\\\\");
+
+        this.email = email;
+
+        if (creds.length >= 2) {
+            String[] url = creds[0].split("://");
+
+            this.protocolSchema = url[0];
+            this.logHost = url[1];
+            this.email = creds[2];
+        }
+
+        return this;
+    }
+
+    public SnP getStudentAndParent() throws IOException, NotLoggedInErrorException {
         if (null == getCookiesObject()) {
             throw new NotLoggedInErrorException();
         }
@@ -58,6 +110,8 @@ public class Vulcan extends Api {
         }
 
         snp = createSnp(cookies, symbol, id);
+        snp.setLogHost(logHost);
+        snp.setProtocolSchema(protocolSchema);
 
         snp.storeContextCookies();
 
@@ -66,7 +120,7 @@ public class Vulcan extends Api {
         return snp;
     }
 
-    public StudentAndParent createSnp(Cookies cookies, String symbol, String id) {
+    public SnP createSnp(Cookies cookies, String symbol, String id) {
         if (null == id) {
             return new StudentAndParent(cookies, symbol);
         }
diff --git a/api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceStatistics.java b/api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceStatistics.java
index 53d9bcfa..c5194834 100644
--- a/api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceStatistics.java
+++ b/api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceStatistics.java
@@ -8,15 +8,15 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class AttendanceStatistics {
 
-    private StudentAndParent snp;
+    private SnP snp;
 
     private String attendancePageUrl = "Frekwencja.mvc";
 
-    public AttendanceStatistics(StudentAndParent snp) {
+    public AttendanceStatistics(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceTable.java b/api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceTable.java
index 1452d9e1..0576257e 100644
--- a/api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceTable.java
+++ b/api/src/main/java/io/github/wulkanowy/api/attendance/AttendanceTable.java
@@ -7,15 +7,15 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class AttendanceTable {
 
-    private StudentAndParent snp;
+    private SnP snp;
 
     private String attendancePageUrl = "Frekwencja.mvc?data=";
 
-    public AttendanceTable(StudentAndParent snp) {
+    public AttendanceTable(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/exams/ExamsWeek.java b/api/src/main/java/io/github/wulkanowy/api/exams/ExamsWeek.java
index 0cb326fe..09b75a94 100644
--- a/api/src/main/java/io/github/wulkanowy/api/exams/ExamsWeek.java
+++ b/api/src/main/java/io/github/wulkanowy/api/exams/ExamsWeek.java
@@ -8,15 +8,15 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class ExamsWeek {
 
-    private final StudentAndParent snp;
-
     private static final String EXAMS_PAGE_URL = "Sprawdziany.mvc/Terminarz?rodzajWidoku=2&data=";
 
-    public ExamsWeek(StudentAndParent snp) {
+    private final SnP snp;
+
+    public ExamsWeek(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/grades/GradesList.java b/api/src/main/java/io/github/wulkanowy/api/grades/GradesList.java
index 123e648b..cc2e4c4a 100644
--- a/api/src/main/java/io/github/wulkanowy/api/grades/GradesList.java
+++ b/api/src/main/java/io/github/wulkanowy/api/grades/GradesList.java
@@ -15,17 +15,17 @@ import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 import io.github.wulkanowy.api.Semester;
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class GradesList {
 
-    private StudentAndParent snp = null;
-
     private static final String GRADES_PAGE_URL = "Oceny/Wszystkie?details=2&okres=";
 
+    private SnP snp = null;
+
     private List<Grade> grades = new ArrayList<>();
 
-    public GradesList(StudentAndParent snp) {
+    public GradesList(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/grades/SubjectsList.java b/api/src/main/java/io/github/wulkanowy/api/grades/SubjectsList.java
index fef666c7..decf4468 100644
--- a/api/src/main/java/io/github/wulkanowy/api/grades/SubjectsList.java
+++ b/api/src/main/java/io/github/wulkanowy/api/grades/SubjectsList.java
@@ -8,15 +8,15 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class SubjectsList {
 
-    private StudentAndParent snp = null;
-
     private static final String SUBJECTS_PAGE_URL = "Oceny/Wszystkie?details=1";
 
-    public SubjectsList(StudentAndParent snp) {
+    private SnP snp = null;
+
+    public SubjectsList(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/login/Login.java b/api/src/main/java/io/github/wulkanowy/api/login/Login.java
index 70a79fe2..7908bfd1 100644
--- a/api/src/main/java/io/github/wulkanowy/api/login/Login.java
+++ b/api/src/main/java/io/github/wulkanowy/api/login/Login.java
@@ -6,34 +6,57 @@ import org.jsoup.parser.Parser;
 import org.jsoup.select.Elements;
 
 import java.io.IOException;
+import java.util.regex.Pattern;
 
 import io.github.wulkanowy.api.Api;
 import io.github.wulkanowy.api.Cookies;
 
 public class Login extends Api {
 
-    private String loginPageUrl = "https://cufs.vulcan.net.pl/{symbol}/Account/LogOn" +
+    private static final String loginPageUrl = "{schema}://cufs.{host}/{symbol}/Account/LogOn" +
             "?ReturnUrl=%2F{symbol}%2FFS%2FLS%3Fwa%3Dwsignin1.0%26wtrealm%3D" +
-            "https%253a%252f%252fuonetplus.vulcan.net.pl%252f{symbol}%252fLoginEndpoint.aspx%26wctx%3D" +
-            "https%253a%252f%252fuonetplus.vulcan.net.pl%252f{symbol}%252fLoginEndpoint.aspx";
+            "{schema}%253a%252f%252fuonetplus.{host}%252f{symbol}%252fLoginEndpoint.aspx%26wctx%3D" +
+            "{schema}%253a%252f%252fuonetplus.{host}%252f{symbol}%252fLoginEndpoint.aspx";
 
-    private String loginEndpointPageUrl =
-            "https://uonetplus.vulcan.net.pl/{symbol}/LoginEndpoint.aspx";
+    private static final String loginEndpointPageUrl =
+            "{schema}://uonetplus.{host}/{symbol}/LoginEndpoint.aspx";
+
+    private String protocolSchema = "https";
+
+    private String logHost = "vulcan.net.pl";
+
+    private String symbol = "Default";
 
     public Login(Cookies cookies) {
         this.cookies = cookies;
     }
 
+    public void setProtocolSchema(String schema) {
+        this.protocolSchema = schema;
+    }
+
+    public void setLogHost(String hostname) {
+        this.logHost = hostname;
+    }
+
     public String getLoginPageUrl() {
-        return loginPageUrl;
+        return loginPageUrl
+                .replace("{schema}", protocolSchema)
+                .replaceFirst(Pattern.quote("{host}"), logHost)
+                .replace("{host}", logHost.replace(":", "%253A"))
+                .replace("{symbol}", symbol);
     }
 
     public String getLoginEndpointPageUrl() {
-        return loginEndpointPageUrl;
+        return loginEndpointPageUrl
+                .replace("{schema}", protocolSchema)
+                .replace("{host}", logHost)
+                .replace("{symbol}", symbol);
     }
 
     public String login(String email, String password, String symbol)
-            throws BadCredentialsException, LoginErrorException, AccountPermissionException, IOException {
+            throws BadCredentialsException, LoginErrorException,
+            AccountPermissionException, IOException, VulcanOfflineException {
         String certificate = sendCredentials(email, password, symbol);
 
         return sendCertificate(certificate, symbol);
@@ -41,9 +64,9 @@ public class Login extends Api {
 
     public String sendCredentials(String email, String password, String symbol)
             throws IOException, BadCredentialsException {
-        loginPageUrl = getLoginPageUrl().replace("{symbol}", symbol);
+        this.symbol = symbol;
 
-        Document html = postPageByUrl(loginPageUrl, new String[][]{
+        Document html = postPageByUrl(getLoginPageUrl(), new String[][]{
                 {"LoginName", email},
                 {"Password", password}
         });
@@ -56,13 +79,10 @@ public class Login extends Api {
     }
 
     public String sendCertificate(String certificate, String defaultSymbol)
-            throws IOException, LoginErrorException, AccountPermissionException {
-        String symbol = findSymbol(defaultSymbol, certificate);
+            throws IOException, LoginErrorException, AccountPermissionException, VulcanOfflineException {
+        this.symbol = findSymbol(defaultSymbol, certificate);
 
-        loginEndpointPageUrl = getLoginEndpointPageUrl()
-                .replace("{symbol}", symbol);
-
-        Document html = postPageByUrl(loginEndpointPageUrl, new String[][]{
+        Document html = postPageByUrl(getLoginEndpointPageUrl(), new String[][]{
                 {"wa", "wsignin1.0"},
                 {"wresult", certificate}
         });
@@ -71,11 +91,15 @@ public class Login extends Api {
             throw new AccountPermissionException();
         }
 
+        if (html.getElementsByTag("title").text().equals("Przerwa techniczna")) {
+            throw new VulcanOfflineException();
+        }
+
         if (!html.select("title").text().equals("Uonet+")) {
             throw new LoginErrorException();
         }
 
-        return symbol;
+        return this.symbol;
     }
 
     public String findSymbol(String symbol, String certificate) {
diff --git a/api/src/main/java/io/github/wulkanowy/api/login/VulcanOfflineException.java b/api/src/main/java/io/github/wulkanowy/api/login/VulcanOfflineException.java
new file mode 100644
index 00000000..45cf6458
--- /dev/null
+++ b/api/src/main/java/io/github/wulkanowy/api/login/VulcanOfflineException.java
@@ -0,0 +1,4 @@
+package io.github.wulkanowy.api.login;
+
+public class VulcanOfflineException extends Exception {
+}
diff --git a/api/src/main/java/io/github/wulkanowy/api/notes/AchievementsList.java b/api/src/main/java/io/github/wulkanowy/api/notes/AchievementsList.java
index ee41f71c..c821e8be 100644
--- a/api/src/main/java/io/github/wulkanowy/api/notes/AchievementsList.java
+++ b/api/src/main/java/io/github/wulkanowy/api/notes/AchievementsList.java
@@ -7,17 +7,17 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class AchievementsList {
 
-    private StudentAndParent snp = null;
+    private static final String NOTES_PAGE_URL = "UwagiOsiagniecia.mvc/Wszystkie";
+
+    private SnP snp = null;
 
     private List<String> achievements = new ArrayList<>();
 
-    private static final String NOTES_PAGE_URL = "UwagiOsiagniecia.mvc/Wszystkie";
-
-    public AchievementsList(StudentAndParent snp) {
+    public AchievementsList(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/notes/NotesList.java b/api/src/main/java/io/github/wulkanowy/api/notes/NotesList.java
index 4ee6bb64..34b8540d 100644
--- a/api/src/main/java/io/github/wulkanowy/api/notes/NotesList.java
+++ b/api/src/main/java/io/github/wulkanowy/api/notes/NotesList.java
@@ -7,17 +7,17 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class NotesList {
 
-    private StudentAndParent snp = null;
+    private static final String NOTES_PAGE_URL = "UwagiOsiagniecia.mvc/Wszystkie";
+
+    private SnP snp = null;
 
     private List<Note> notes = new ArrayList<>();
 
-    private static final String NOTES_PAGE_URL = "UwagiOsiagniecia.mvc/Wszystkie";
-
-    public NotesList(StudentAndParent snp) {
+    public NotesList(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/school/SchoolInfo.java b/api/src/main/java/io/github/wulkanowy/api/school/SchoolInfo.java
index 44bd7703..4eeb641c 100644
--- a/api/src/main/java/io/github/wulkanowy/api/school/SchoolInfo.java
+++ b/api/src/main/java/io/github/wulkanowy/api/school/SchoolInfo.java
@@ -4,15 +4,15 @@ import org.jsoup.nodes.Element;
 
 import java.io.IOException;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class SchoolInfo {
 
-    private StudentAndParent snp = null;
-
     private static final String SCHOOL_PAGE_URL = "Szkola.mvc/Nauczyciele";
 
-    public SchoolInfo(StudentAndParent snp) {
+    private SnP snp = null;
+
+    public SchoolInfo(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/school/TeachersInfo.java b/api/src/main/java/io/github/wulkanowy/api/school/TeachersInfo.java
index f37b7c54..e8af6744 100644
--- a/api/src/main/java/io/github/wulkanowy/api/school/TeachersInfo.java
+++ b/api/src/main/java/io/github/wulkanowy/api/school/TeachersInfo.java
@@ -8,15 +8,15 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class TeachersInfo {
 
-    private StudentAndParent snp = null;
-
     private static final String SCHOOL_PAGE_URL = "Szkola.mvc/Nauczyciele";
 
-    public TeachersInfo(StudentAndParent snp) {
+    private SnP snp = null;
+
+    public TeachersInfo(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/timetable/Timetable.java b/api/src/main/java/io/github/wulkanowy/api/timetable/Timetable.java
index efff1780..cbece431 100644
--- a/api/src/main/java/io/github/wulkanowy/api/timetable/Timetable.java
+++ b/api/src/main/java/io/github/wulkanowy/api/timetable/Timetable.java
@@ -12,15 +12,15 @@ import java.util.Date;
 import java.util.List;
 import java.util.Locale;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class Timetable {
 
-    private StudentAndParent snp;
-
     private static final String TIMETABLE_PAGE_URL = "Lekcja.mvc/PlanLekcji?data=";
 
-    public Timetable(StudentAndParent snp) {
+    private SnP snp;
+
+    public Timetable(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/user/BasicInformation.java b/api/src/main/java/io/github/wulkanowy/api/user/BasicInformation.java
index 2a1a01f8..875cc8da 100644
--- a/api/src/main/java/io/github/wulkanowy/api/user/BasicInformation.java
+++ b/api/src/main/java/io/github/wulkanowy/api/user/BasicInformation.java
@@ -5,19 +5,19 @@ import org.jsoup.nodes.Element;
 
 import java.io.IOException;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class BasicInformation {
 
-    private Document studentDataPageDocument;
-
-    private StudentAndParent snp;
-
     private static final String STUDENT_DATA_PAGE_URL = "Uczen.mvc/DanePodstawowe";
 
     private static final String CONTENT_QUERY = ".mainContainer > article";
 
-    public BasicInformation(StudentAndParent snp) {
+    private Document studentDataPageDocument;
+
+    private SnP snp;
+
+    public BasicInformation(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/main/java/io/github/wulkanowy/api/user/FamilyInformation.java b/api/src/main/java/io/github/wulkanowy/api/user/FamilyInformation.java
index 214224f8..555de866 100644
--- a/api/src/main/java/io/github/wulkanowy/api/user/FamilyInformation.java
+++ b/api/src/main/java/io/github/wulkanowy/api/user/FamilyInformation.java
@@ -7,15 +7,15 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import io.github.wulkanowy.api.StudentAndParent;
+import io.github.wulkanowy.api.SnP;
 
 public class FamilyInformation {
 
-    private StudentAndParent snp;
-
     private static final String STUDENT_DATA_PAGE_URL = "Uczen.mvc/DanePodstawowe";
 
-    public FamilyInformation(StudentAndParent snp) {
+    private SnP snp;
+
+    public FamilyInformation(SnP snp) {
         this.snp = snp;
     }
 
diff --git a/api/src/test/java/io/github/wulkanowy/api/StudentAndParentTest.java b/api/src/test/java/io/github/wulkanowy/api/StudentAndParentTest.java
index 9b0609e3..e8ca1342 100644
--- a/api/src/test/java/io/github/wulkanowy/api/StudentAndParentTest.java
+++ b/api/src/test/java/io/github/wulkanowy/api/StudentAndParentTest.java
@@ -26,7 +26,8 @@ public class StudentAndParentTest {
 
         Mockito.when(snp.getSnPPageDocument(Mockito.anyString())).thenReturn(gradesPageDocument);
         Mockito.when(snp.getExtractedIdFromUrl(Mockito.anyString())).thenCallRealMethod();
-        Mockito.when(snp.getBaseUrl()).thenReturn("https://uonetplus-opiekun.vulcan.net.pl/{symbol}/{ID}/");
+        Mockito.when(snp.getLogHost()).thenReturn("vulcan.net.pl");
+        Mockito.when(snp.getBaseUrl()).thenReturn("https://uonetplus-opiekun.vulcan.net.pl/symbol/123456/");
         Mockito.when(snp.getSymbol()).thenReturn("symbol");
         Mockito.when(snp.getId()).thenReturn("123456");
         Mockito.when(snp.getSemesters()).thenCallRealMethod();
diff --git a/api/src/test/java/io/github/wulkanowy/api/VulcanTest.java b/api/src/test/java/io/github/wulkanowy/api/VulcanTest.java
index 84473386..7a87ed6e 100644
--- a/api/src/test/java/io/github/wulkanowy/api/VulcanTest.java
+++ b/api/src/test/java/io/github/wulkanowy/api/VulcanTest.java
@@ -8,8 +8,10 @@ import org.mockito.Mockito;
 
 import io.github.wulkanowy.api.attendance.AttendanceStatistics;
 import io.github.wulkanowy.api.attendance.AttendanceTable;
+import io.github.wulkanowy.api.exams.ExamsWeek;
 import io.github.wulkanowy.api.grades.GradesList;
 import io.github.wulkanowy.api.grades.SubjectsList;
+import io.github.wulkanowy.api.login.Login;
 import io.github.wulkanowy.api.login.NotLoggedInErrorException;
 import io.github.wulkanowy.api.notes.AchievementsList;
 import io.github.wulkanowy.api.notes.NotesList;
@@ -31,6 +33,38 @@ public class VulcanTest extends Vulcan {
                 .thenReturn(snp);
     }
 
+    @Test
+    public void setFullEndpointInfoTest() throws Exception {
+        SnP snp = new StudentAndParent(new Cookies(), "Default");
+        Login login = Mockito.mock(Login.class);
+
+        Vulcan vulcan = Mockito.mock(Vulcan.class);
+        Mockito.when(vulcan.login(Mockito.anyString(), Mockito.anyString(), Mockito.anyString())).thenCallRealMethod();
+        Mockito.when(vulcan.login(Mockito.anyString(), Mockito.anyString(), Mockito.anyString(), Mockito.anyString())).thenCallRealMethod();
+        Mockito.when(vulcan.getLoginObject()).thenReturn(login);
+        Mockito.when(vulcan.createSnp(Mockito.any(Cookies.class), Mockito.anyString(), Mockito.anyString())).thenReturn(snp);
+        Mockito.when(vulcan.getCookiesObject()).thenCallRealMethod();
+        Mockito.when(vulcan.getStudentAndParent()).thenCallRealMethod();
+
+        Mockito.when(vulcan.setFullEndpointInfo(Mockito.anyString())).thenCallRealMethod();
+
+        Mockito.when(vulcan.getProtocolSchema()).thenCallRealMethod();
+        Mockito.when(vulcan.getLogHost()).thenCallRealMethod();
+        Mockito.when(vulcan.getEmail()).thenCallRealMethod();
+
+        vulcan.login("http://fakelog.net\\\\admin", "pass", "Default", "123");
+        Assert.assertEquals("http", vulcan.getProtocolSchema());
+        Assert.assertEquals("fakelog.net", vulcan.getLogHost());
+        Assert.assertEquals("admin", vulcan.getEmail());
+    }
+
+    @Test
+    public void getLoginObjectTest() throws Exception {
+        Mockito.when(vulcan.getLoginObject()).thenCallRealMethod();
+
+        Assert.assertThat(vulcan.getLoginObject(), CoreMatchers.instanceOf(Login.class));
+    }
+
     @Test
     public void getStudentAndParentTest() throws Exception {
         Cookies cookies = new Cookies();
@@ -47,7 +81,7 @@ public class VulcanTest extends Vulcan {
 
         Mockito.when(vulcan.getStudentAndParent()).thenCallRealMethod();
 
-        StudentAndParent vulcanSnP = vulcan.getStudentAndParent();
+        SnP vulcanSnP = vulcan.getStudentAndParent();
 
         Assert.assertEquals(snp, vulcanSnP);
         Assert.assertEquals(vulcanSnP, vulcan.getStudentAndParent());
@@ -93,6 +127,13 @@ public class VulcanTest extends Vulcan {
                 CoreMatchers.instanceOf(AttendanceStatistics.class));
     }
 
+    @Test
+    public void getExamsListTest() throws Exception {
+        Mockito.when(vulcan.getExamsList()).thenCallRealMethod();
+        Assert.assertThat(vulcan.getExamsList(),
+                CoreMatchers.instanceOf(ExamsWeek.class));
+    }
+
     @Test
     public void getGradesListTest() throws Exception {
         Mockito.when(vulcan.getGradesList()).thenCallRealMethod();
diff --git a/api/src/test/java/io/github/wulkanowy/api/login/LoginTest.java b/api/src/test/java/io/github/wulkanowy/api/login/LoginTest.java
index fb5f3d17..e277ed19 100644
--- a/api/src/test/java/io/github/wulkanowy/api/login/LoginTest.java
+++ b/api/src/test/java/io/github/wulkanowy/api/login/LoginTest.java
@@ -108,6 +108,14 @@ public class LoginTest {
         login.sendCertificate(getFixtureAsString("cert.xml"), "demo123");
     }
 
+    @Test(expected = VulcanOfflineException.class)
+    public void sendCertificateVulcanOfflineTest() throws Exception {
+        Login login = getSetUpLogin("PrzerwaTechniczna.html");
+        Mockito.when(login.findSymbol(Mockito.anyString(), Mockito.anyString())).thenCallRealMethod();
+        Mockito.when(login.sendCertificate(Mockito.anyString(), Mockito.anyString())).thenCallRealMethod();
+        login.sendCertificate(getFixtureAsString("cert.xml"), "demo123");
+    }
+
     @Test
     public void findSymbolInCertificateTest() throws Exception {
         Login login = new Login(new Cookies());
diff --git a/api/src/test/java/io/github/wulkanowy/api/timetable/TimetableTest.java b/api/src/test/java/io/github/wulkanowy/api/timetable/TimetableTest.java
index 2ad08b2b..ad7411e3 100644
--- a/api/src/test/java/io/github/wulkanowy/api/timetable/TimetableTest.java
+++ b/api/src/test/java/io/github/wulkanowy/api/timetable/TimetableTest.java
@@ -90,6 +90,15 @@ public class TimetableTest extends StudentAndParentTestCase {
         Assert.assertEquals("3", holidays.getWeekTable().getDay(3).getLesson(3).getNumber());
     }
 
+    @Test
+    public void getLessonDayTest() throws Exception {
+        Assert.assertEquals("2017-06-19", std.getWeekTable().getDay(0).getLesson(1).getDate());
+        Assert.assertEquals("2017-06-23", std.getWeekTable().getDay(4).getLesson(4).getDate());
+        Assert.assertEquals("2017-06-20", full.getWeekTable().getDay(1).getLesson(6).getDate());
+        Assert.assertEquals("2017-06-22", full.getWeekTable().getDay(3).getLesson(3).getDate());
+        Assert.assertEquals("2017-08-02", holidays.getWeekTable().getDay(2).getLesson(8).getDate());
+    }
+
     @Test
     public void getLessonSubjectTest() throws Exception {
         Assert.assertEquals("Historia", std.getWeekTable().getDay(0).getLesson(1).getSubject());
diff --git a/api/src/test/resources/io/github/wulkanowy/api/login/PrzerwaTechniczna.html b/api/src/test/resources/io/github/wulkanowy/api/login/PrzerwaTechniczna.html
new file mode 100644
index 00000000..062f9b60
--- /dev/null
+++ b/api/src/test/resources/io/github/wulkanowy/api/login/PrzerwaTechniczna.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>Przerwa techniczna</title>
+  </head>
+  <body>
+    <div id="page_error">
+      <div id="info_error">
+        <div class="info_error">
+          <h1>Przerwa techniczna</h1>
+          <p>Aktualnie trwają prace konserwacyjne. Witryna będzie dostępna za kilka minut.</p>>
+        </div>
+        <div class="error_link">
+          <a href="http://www.vulcan.edu.pl">Przejdź do strony głównej</a>
+          <br>
+          <br>
+          <p>3</p>
+        </div>
+      </div>
+    </div>
+  </body>
+</html>
diff --git a/app/src/androidTest/java/io/github/wulkanowy/services/VulcanSynchronizationTest.java b/app/src/androidTest/java/io/github/wulkanowy/services/VulcanSynchronizationTest.java
index afabf30a..0a92e4ec 100644
--- a/app/src/androidTest/java/io/github/wulkanowy/services/VulcanSynchronizationTest.java
+++ b/app/src/androidTest/java/io/github/wulkanowy/services/VulcanSynchronizationTest.java
@@ -2,7 +2,6 @@ package io.github.wulkanowy.services;
 
 import android.support.test.runner.AndroidJUnit4;
 
-import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
diff --git a/app/src/androidTest/java/io/github/wulkanowy/services/synchronization/CurrentAccountLoginTest.java b/app/src/androidTest/java/io/github/wulkanowy/services/synchronization/CurrentAccountLoginTest.java
index a20db959..8b45dd6f 100644
--- a/app/src/androidTest/java/io/github/wulkanowy/services/synchronization/CurrentAccountLoginTest.java
+++ b/app/src/androidTest/java/io/github/wulkanowy/services/synchronization/CurrentAccountLoginTest.java
@@ -20,6 +20,7 @@ import io.github.wulkanowy.api.Vulcan;
 import io.github.wulkanowy.api.login.AccountPermissionException;
 import io.github.wulkanowy.api.login.BadCredentialsException;
 import io.github.wulkanowy.api.login.LoginErrorException;
+import io.github.wulkanowy.api.login.VulcanOfflineException;
 import io.github.wulkanowy.dao.entities.Account;
 import io.github.wulkanowy.dao.entities.AccountDao;
 import io.github.wulkanowy.dao.entities.DaoMaster;
@@ -60,7 +61,7 @@ public class CurrentAccountLoginTest {
 
     @Test(expected = IOException.class)
     public void emptyUserIdTest() throws CryptoException, BadCredentialsException,
-            AccountPermissionException, IOException, LoginErrorException {
+            AccountPermissionException, IOException, LoginErrorException, VulcanOfflineException {
 
         CurrentAccountLogin currentAccountLogin = new CurrentAccountLogin(context, daoSession, new Vulcan());
         currentAccountLogin.loginCurrentUser();
@@ -80,7 +81,7 @@ public class CurrentAccountLoginTest {
         setUserIdSharePreferences(userId);
 
         Vulcan vulcan = Mockito.mock(Vulcan.class);
-        Mockito.doNothing().when(vulcan).login("TEST@TEST", "TEST", "TEST_SYMBOL", "TEST_ID");
+        Mockito.when(vulcan.login("TEST@TEST", "TEST", "TEST_SYMBOL", "TEST_ID")).thenReturn(new Vulcan());
 
         CurrentAccountLogin currentAccountLogin = new CurrentAccountLogin(targetContext, daoSession, vulcan);
         LoginSession loginSession = currentAccountLogin.loginCurrentUser();
diff --git a/app/src/androidTest/java/io/github/wulkanowy/services/synchronization/FirstAccountLoginTest.java b/app/src/androidTest/java/io/github/wulkanowy/services/synchronization/FirstAccountLoginTest.java
index 612555d3..958503c3 100644
--- a/app/src/androidTest/java/io/github/wulkanowy/services/synchronization/FirstAccountLoginTest.java
+++ b/app/src/androidTest/java/io/github/wulkanowy/services/synchronization/FirstAccountLoginTest.java
@@ -14,7 +14,6 @@ import org.mockito.Mockito;
 
 import io.github.wulkanowy.api.StudentAndParent;
 import io.github.wulkanowy.api.Vulcan;
-import io.github.wulkanowy.api.login.Login;
 import io.github.wulkanowy.api.user.BasicInformation;
 import io.github.wulkanowy.api.user.PersonalData;
 import io.github.wulkanowy.dao.entities.Account;
@@ -49,17 +48,6 @@ public class FirstAccountLoginTest {
         setUserIdSharePreferences(0);
     }
 
-    @Test
-    public void connectTest() throws Exception {
-        String certificate = "<xml>Certificate</xml>";
-        Login login = Mockito.mock(Login.class);
-        Mockito.when(login.sendCredentials(Mockito.anyString(), Mockito.anyString(), Mockito.anyString()))
-                .thenReturn(certificate);
-        FirstAccountLogin firstAccountLogin = new FirstAccountLogin(login, new Vulcan(), "TEST@TEST", "TEST_PASS", "TEST_SYMBOL");
-
-        Assert.assertEquals(certificate, firstAccountLogin.connect());
-    }
-
     @Test
     public void loginTest() throws Exception {
         StudentAndParent snp = Mockito.mock(StudentAndParent.class);
@@ -76,11 +64,8 @@ public class FirstAccountLoginTest {
         Mockito.doReturn(basicInformation).when(vulcan).getBasicInformation();
         Mockito.doReturn(snp).when(vulcan).getStudentAndParent();
 
-        Login login = Mockito.mock(Login.class);
-        Mockito.when(login.sendCertificate(Mockito.anyString(), Mockito.anyString())).thenReturn("TEST-SYMBOL");
-
-        FirstAccountLogin firstAccountLogin = new FirstAccountLogin(login, vulcan, "TEST@TEST", "TEST-PASS", "default");
-        LoginSession loginSession = firstAccountLogin.login(targetContext, daoSession, "<xml>cert</xml>");
+        FirstAccountLogin firstAccountLogin = new FirstAccountLogin(targetContext, daoSession, vulcan);
+        LoginSession loginSession = firstAccountLogin.login("TEST@TEST", "TEST-PASS", "default");
 
         Long userId = targetContext.getSharedPreferences("LoginData", Context.MODE_PRIVATE).getLong("userId", 0);
 
diff --git a/app/src/main/java/io/github/wulkanowy/services/VulcanSynchronization.java b/app/src/main/java/io/github/wulkanowy/services/VulcanSynchronization.java
index 07bf5462..0f66ee28 100644
--- a/app/src/main/java/io/github/wulkanowy/services/VulcanSynchronization.java
+++ b/app/src/main/java/io/github/wulkanowy/services/VulcanSynchronization.java
@@ -6,13 +6,12 @@ import android.util.Log;
 
 import java.io.IOException;
 
-import io.github.wulkanowy.api.Cookies;
 import io.github.wulkanowy.api.Vulcan;
 import io.github.wulkanowy.api.login.AccountPermissionException;
 import io.github.wulkanowy.api.login.BadCredentialsException;
-import io.github.wulkanowy.api.login.Login;
 import io.github.wulkanowy.api.login.LoginErrorException;
 import io.github.wulkanowy.api.login.NotLoggedInErrorException;
+import io.github.wulkanowy.api.login.VulcanOfflineException;
 import io.github.wulkanowy.dao.entities.DaoSession;
 import io.github.wulkanowy.security.CryptoException;
 import io.github.wulkanowy.services.jobs.VulcanJobHelper;
@@ -26,10 +25,6 @@ public class VulcanSynchronization {
 
     private LoginSession loginSession;
 
-    private FirstAccountLogin firstAccountLogin;
-
-    private String certificate;
-
     public VulcanSynchronization(LoginSession loginSession) {
         this.loginSession = loginSession;
     }
@@ -38,30 +33,21 @@ public class VulcanSynchronization {
         this.loginSession = new LoginSession();
     }
 
-    public void firstLoginConnectStep(String email, String password, String symbol)
-            throws BadCredentialsException, IOException {
-        firstAccountLogin = new FirstAccountLogin(new Login(new Cookies()), new Vulcan(), email, password, symbol);
-        certificate = firstAccountLogin.connect();
-    }
-
-    public void firstLoginSignInStep(Context context, DaoSession daoSession)
-            throws NotLoggedInErrorException, AccountPermissionException, IOException, CryptoException {
-        if (firstAccountLogin != null && certificate != null) {
-            loginSession = firstAccountLogin.login(context, daoSession, certificate);
-        } else {
-            Log.e(VulcanJobHelper.DEBUG_TAG, "Before first login, should call firstLoginConnectStep",
-                    new UnsupportedOperationException());
-        }
+    public void firstLoginSignInStep(Context context, DaoSession daoSession, String email, String password, String symbol)
+            throws NotLoggedInErrorException, AccountPermissionException, IOException, CryptoException, VulcanOfflineException, BadCredentialsException {
+        FirstAccountLogin firstAccountLogin = new FirstAccountLogin(context, daoSession, new Vulcan());
+        loginSession = firstAccountLogin.login(email, password, symbol);
     }
 
     public VulcanSynchronization loginCurrentUser(Context context, DaoSession daoSession) throws CryptoException,
-            BadCredentialsException, AccountPermissionException, LoginErrorException, IOException {
+            BadCredentialsException, AccountPermissionException, LoginErrorException, IOException, VulcanOfflineException {
         return loginCurrentUser(context, daoSession, new Vulcan());
     }
 
     public VulcanSynchronization loginCurrentUser(Context context, DaoSession daoSession, Vulcan vulcan)
             throws CryptoException, BadCredentialsException, AccountPermissionException,
-            LoginErrorException, IOException {
+            LoginErrorException, IOException, VulcanOfflineException {
+
         CurrentAccountLogin currentAccountLogin = new CurrentAccountLogin(context, daoSession, vulcan);
         loginSession = currentAccountLogin.loginCurrentUser();
         return this;
diff --git a/app/src/main/java/io/github/wulkanowy/services/synchronisation/CurrentAccountLogin.java b/app/src/main/java/io/github/wulkanowy/services/synchronisation/CurrentAccountLogin.java
index c3ecd04b..7ea2c5a9 100644
--- a/app/src/main/java/io/github/wulkanowy/services/synchronisation/CurrentAccountLogin.java
+++ b/app/src/main/java/io/github/wulkanowy/services/synchronisation/CurrentAccountLogin.java
@@ -9,6 +9,7 @@ import io.github.wulkanowy.api.Vulcan;
 import io.github.wulkanowy.api.login.AccountPermissionException;
 import io.github.wulkanowy.api.login.BadCredentialsException;
 import io.github.wulkanowy.api.login.LoginErrorException;
+import io.github.wulkanowy.api.login.VulcanOfflineException;
 import io.github.wulkanowy.dao.entities.Account;
 import io.github.wulkanowy.dao.entities.AccountDao;
 import io.github.wulkanowy.dao.entities.DaoSession;
@@ -32,7 +33,7 @@ public class CurrentAccountLogin {
     }
 
     public LoginSession loginCurrentUser() throws CryptoException,
-            BadCredentialsException, AccountPermissionException, IOException, LoginErrorException {
+            BadCredentialsException, AccountPermissionException, IOException, LoginErrorException, VulcanOfflineException {
 
         AccountDao accountDao = daoSession.getAccountDao();
 
@@ -44,6 +45,7 @@ public class CurrentAccountLogin {
 
             Safety safety = new Safety();
             Account account = accountDao.load(userId);
+
             vulcan.login(
                     account.getEmail(),
                     safety.decrypt(account.getEmail(), account.getPassword()),
diff --git a/app/src/main/java/io/github/wulkanowy/services/synchronisation/FirstAccountLogin.java b/app/src/main/java/io/github/wulkanowy/services/synchronisation/FirstAccountLogin.java
index 9b88de4a..afae8224 100644
--- a/app/src/main/java/io/github/wulkanowy/services/synchronisation/FirstAccountLogin.java
+++ b/app/src/main/java/io/github/wulkanowy/services/synchronisation/FirstAccountLogin.java
@@ -8,8 +8,8 @@ import java.io.IOException;
 import io.github.wulkanowy.api.Vulcan;
 import io.github.wulkanowy.api.login.AccountPermissionException;
 import io.github.wulkanowy.api.login.BadCredentialsException;
-import io.github.wulkanowy.api.login.Login;
 import io.github.wulkanowy.api.login.NotLoggedInErrorException;
+import io.github.wulkanowy.api.login.VulcanOfflineException;
 import io.github.wulkanowy.dao.entities.Account;
 import io.github.wulkanowy.dao.entities.AccountDao;
 import io.github.wulkanowy.dao.entities.DaoSession;
@@ -19,38 +19,22 @@ import io.github.wulkanowy.services.LoginSession;
 
 public class FirstAccountLogin {
 
+    private final Context context;
 
-    private final Login login;
+    private final DaoSession daoSession;
 
     private final Vulcan vulcan;
 
-    private final String email;
-
-    private final String password;
-
-    private final String symbol;
-
-    public FirstAccountLogin(Login login, Vulcan vulcan, String email, String password, String symbol) {
-        this.login = login;
+    public FirstAccountLogin(Context context, DaoSession daoSession, Vulcan vulcan) {
+        this.context = context;
+        this.daoSession = daoSession;
         this.vulcan = vulcan;
-        this.email = email;
-        this.password = password;
-        this.symbol = symbol;
     }
 
-    public String connect()
-            throws BadCredentialsException, IOException {
-        return login.sendCredentials(email, password, symbol);
-    }
+    public LoginSession login(String email, String password, String symbol)
+            throws NotLoggedInErrorException, AccountPermissionException, IOException, CryptoException, VulcanOfflineException, BadCredentialsException {
 
-    public LoginSession login(Context context, DaoSession daoSession, String certificate)
-            throws NotLoggedInErrorException, AccountPermissionException, IOException, CryptoException {
-
-        long userId;
-
-        String realSymbol = login.sendCertificate(certificate, symbol);
-
-        vulcan.login(login.getCookiesObject(), realSymbol);
+        vulcan.login(email, password, symbol);
 
         AccountDao accountDao = daoSession.getAccountDao();
         Safety safety = new Safety();
@@ -61,7 +45,7 @@ public class FirstAccountLogin {
                 .setSymbol(vulcan.getStudentAndParent().getSymbol())
                 .setSnpId(vulcan.getStudentAndParent().getId());
 
-        userId = accountDao.insert(account);
+        long userId = accountDao.insert(account);
 
         SharedPreferences sharedPreferences = context.getSharedPreferences("LoginData", Context.MODE_PRIVATE);
         SharedPreferences.Editor editor = sharedPreferences.edit();
diff --git a/app/src/main/java/io/github/wulkanowy/ui/login/LoginActivity.java b/app/src/main/java/io/github/wulkanowy/ui/login/LoginActivity.java
index 05df7d23..c6b941dc 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/login/LoginActivity.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/login/LoginActivity.java
@@ -171,11 +171,11 @@ public class LoginActivity extends Activity {
     }
 
     private boolean isEmailValid(String email) {
-        return email.contains("@");
+        return email.contains("@") || email.contains("\\\\");
     }
 
     private boolean isPasswordValid(String password) {
-        return password.length() > 7;
+        return password.length() > 4;
     }
 
     private void hideSoftKeyboard() {
diff --git a/app/src/main/java/io/github/wulkanowy/ui/login/LoginTask.java b/app/src/main/java/io/github/wulkanowy/ui/login/LoginTask.java
index dc51516b..7066d252 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/login/LoginTask.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/login/LoginTask.java
@@ -24,6 +24,7 @@ import io.github.wulkanowy.R;
 import io.github.wulkanowy.api.login.AccountPermissionException;
 import io.github.wulkanowy.api.login.BadCredentialsException;
 import io.github.wulkanowy.api.login.NotLoggedInErrorException;
+import io.github.wulkanowy.api.login.VulcanOfflineException;
 import io.github.wulkanowy.dao.entities.DaoSession;
 import io.github.wulkanowy.security.CryptoException;
 import io.github.wulkanowy.services.LoginSession;
@@ -68,20 +69,15 @@ public class LoginTask extends AsyncTask<Void, String, Integer> {
     @Override
     protected Integer doInBackground(Void... params) {
         if (ConnectionUtilities.isOnline(activity.get())) {
+            DaoSession daoSession = ((WulkanowyApp) activity.get().getApplication()).getDaoSession();
             VulcanSynchronization vulcanSynchronization = new VulcanSynchronization(new LoginSession());
 
-            DaoSession daoSession = ((WulkanowyApp) activity.get().getApplication()).getDaoSession();
-
             try {
-                publishProgress("1", activity.get().getResources().getString(R.string.step_connecting));
-                vulcanSynchronization.firstLoginConnectStep(email, password, symbol);
+                publishProgress("1", activity.get().getResources().getString(R.string.step_login));
+                vulcanSynchronization.firstLoginSignInStep(activity.get(), daoSession, email, password, symbol);
 
-                publishProgress("2", activity.get().getResources().getString(R.string.step_login));
-                vulcanSynchronization.firstLoginSignInStep(activity.get(), daoSession);
-
-                publishProgress("3", activity.get().getResources().getString(R.string.step_synchronization));
+                publishProgress("2", activity.get().getResources().getString(R.string.step_synchronization));
                 vulcanSynchronization.syncAll();
-
             } catch (BadCredentialsException e) {
                 return R.string.login_bad_credentials_text;
             } catch (AccountPermissionException e) {
@@ -94,6 +90,8 @@ public class LoginTask extends AsyncTask<Void, String, Integer> {
                 return R.string.generic_timeout_error;
             } catch (NotLoggedInErrorException | IOException e) {
                 return R.string.login_denied_text;
+            } catch (VulcanOfflineException e) {
+                return R.string.error_host_offline;
             } catch (UnsupportedOperationException e) {
                 return -1;
             }
@@ -109,7 +107,7 @@ public class LoginTask extends AsyncTask<Void, String, Integer> {
 
     @Override
     protected void onProgressUpdate(String... progress) {
-        showText.get().setText(String.format("%1$s/3 - %2$s...", progress[0], progress[1]));
+        showText.get().setText(String.format("%1$s/2 - %2$s...", progress[0], progress[1]));
     }
 
     @Override
diff --git a/app/src/main/java/io/github/wulkanowy/ui/main/RefreshTask.java b/app/src/main/java/io/github/wulkanowy/ui/main/RefreshTask.java
index 46e661dd..5ea01d65 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/main/RefreshTask.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/main/RefreshTask.java
@@ -3,12 +3,12 @@ package io.github.wulkanowy.ui.main;
 import android.os.AsyncTask;
 import android.util.Log;
 
-import java.io.IOException;
 import java.net.SocketTimeoutException;
 import java.net.UnknownHostException;
 import java.util.List;
 
 import io.github.wulkanowy.R;
+import io.github.wulkanowy.api.login.VulcanOfflineException;
 
 public class RefreshTask extends AsyncTask<Void, Void, List<?>> {
 
@@ -30,12 +30,16 @@ public class RefreshTask extends AsyncTask<Void, Void, List<?>> {
         } catch (UnknownHostException e) {
             stringEventId = R.string.noInternet_text;
             Log.i(DEBUG_TAG, "Synchronization is failed because occur problem with internet",
-                    new IOException());
+                    e.getCause());
             return null;
         } catch (SocketTimeoutException e) {
             stringEventId = R.string.generic_timeout_error;
             Log.i(DEBUG_TAG, "Too long wait for connection with internet", e);
             return null;
+        } catch (VulcanOfflineException e) {
+            stringEventId = R.string.error_host_offline;
+            Log.i(DEBUG_TAG, "VULCAN services is offline");
+            return null;
         } catch (Exception e) {
             stringEventId = R.string.refresh_error_text;
             Log.e(DEBUG_TAG, "There was a synchronization problem", e);
diff --git a/app/src/main/java/io/github/wulkanowy/ui/main/grades/GradesFragment.java b/app/src/main/java/io/github/wulkanowy/ui/main/grades/GradesFragment.java
index 4117ae1f..985002f5 100644
--- a/app/src/main/java/io/github/wulkanowy/ui/main/grades/GradesFragment.java
+++ b/app/src/main/java/io/github/wulkanowy/ui/main/grades/GradesFragment.java
@@ -22,6 +22,7 @@ import java.util.List;
 
 import io.github.wulkanowy.R;
 import io.github.wulkanowy.api.Vulcan;
+import io.github.wulkanowy.api.login.VulcanOfflineException;
 import io.github.wulkanowy.dao.DatabaseAccess;
 import io.github.wulkanowy.dao.entities.Account;
 import io.github.wulkanowy.dao.entities.AccountDao;
@@ -146,7 +147,7 @@ public class GradesFragment extends Fragment {
         }
     }
 
-    private static class RefreshTask extends AsyncTask<Void, Void, Boolean> {
+    private static class RefreshTask extends AsyncTask<Void, Void, Integer> {
 
         private DaoSession daoSession;
 
@@ -161,24 +162,27 @@ public class GradesFragment extends Fragment {
         }
 
         @Override
-        protected Boolean doInBackground(Void... params) {
+        protected Integer doInBackground(Void... params) {
             VulcanSynchronization vulcanSynchronization = new VulcanSynchronization(new LoginSession());
             try {
                 vulcanSynchronization.loginCurrentUser(activity.get(), daoSession, new Vulcan());
                 vulcanSynchronization.syncGrades();
                 downloadGradesFormDatabase(daoSession);
-                return true;
+                return 1;
+            } catch (VulcanOfflineException e) {
+                Log.e(VulcanJobHelper.DEBUG_TAG, "There was a synchronization problem, because vulcan is offline", e);
+                return R.string.error_host_offline;
             } catch (Exception e) {
                 Log.e(VulcanJobHelper.DEBUG_TAG, "There was a synchronization problem", e);
-                return false;
+                return R.string.refresh_error_text;
             }
         }
 
         @Override
-        protected void onPostExecute(Boolean result) {
-            super.onPostExecute(result);
+        protected void onPostExecute(Integer messageID) {
+            super.onPostExecute(messageID);
 
-            if (result) {
+            if (1 == messageID) {
                 if (mainView.get() != null && activity.get() != null) {
                     createExpList(mainView.get(), activity.get());
                 }
@@ -195,7 +199,7 @@ public class GradesFragment extends Fragment {
                             Snackbar.LENGTH_SHORT).show();
                 }
             } else {
-                Toast.makeText(activity.get(), R.string.refresh_error_text, Toast.LENGTH_SHORT).show();
+                Toast.makeText(activity.get(), messageID, Toast.LENGTH_SHORT).show();
             }
 
             if (mainView.get() != null) {
diff --git a/app/src/main/res/values-pl/strings.xml b/app/src/main/res/values-pl/strings.xml
index 3d7951ea..1d05451e 100644
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@@ -39,6 +39,7 @@
     <string name="fragment_no_grades">Brak ocen</string>
 
     <string name="noInternet_text">Brak połączenia z internetem</string>
+    <string name="error_host_offline">Przerwa techniczna. Spróbuj ponownie później</string>
     <string name="encrypt_failed_text">Szyfrowanie nie powiodło się. Automatyczne logowanie zostało wyłączone</string>
     <string name="version_text">Wersja %1$s</string>
     <string name="refresh_error_text">"Podczas odświeżania zawartości wystąpił błąd. "</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 193f90d4..f79e15a3 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -72,6 +72,7 @@
 
     <string name="info_average_grades">Average: %1$.2f</string>
     <string name="info_no_average">No average</string>
+    <string name="error_host_offline">Technical break</string>
 
     <string name="timetable_subitem_room">Room %s</string>