├── .gitattributes
├── .gitignore
├── Download Manager.sln
├── DownloadManager
├── App.config
├── App.xaml
├── App.xaml.cs
├── Download Manager.ico
├── DownloadManager.csproj
├── MainWindow.xaml
├── MainWindow.xaml.cs
└── Properties
│ ├── AssemblyInfo.cs
│ ├── Settings.Designer.cs
│ └── Settings.settings
├── Downloader
├── ChunkDownloader.cs
├── Chunks.cs
├── Download.cs
├── DownloadEngine.cs
├── DownloadScheduler.cs
├── DownloadTracker.cs
├── Downloader.cs
├── Downloader.csproj
├── IChunks.cs
├── IDownload.cs
├── IDownloadEngine.cs
├── IDownloadScheduler.cs
├── Properties
│ ├── AssemblyInfo.cs
│ ├── Settings.Designer.cs
│ └── Settings.settings
└── app.config
├── Installer
└── Download Manager.aip
├── LICENSE
├── Proxy File Size Server
├── .editorconfig
├── .playground
├── README.md
├── app.yaml
└── index.php
└── README.md
/.gitattributes:
--------------------------------------------------------------------------------
1 | ###############################################################################
2 | # Set default behavior to automatically normalize line endings.
3 | ###############################################################################
4 | * text=auto
5 |
6 | ###############################################################################
7 | # Set default behavior for command prompt diff.
8 | #
9 | # This is need for earlier builds of msysgit that does not have it on by
10 | # default for csharp files.
11 | # Note: This is only used by command line
12 | ###############################################################################
13 | #*.cs diff=csharp
14 |
15 | ###############################################################################
16 | # Set the merge driver for project and solution files
17 | #
18 | # Merging from the command prompt will add diff markers to the files if there
19 | # are conflicts (Merging from VS is not affected by the settings below, in VS
20 | # the diff markers are never inserted). Diff markers may cause the following
21 | # file extensions to fail to load in VS. An alternative would be to treat
22 | # these files as binary and thus will always conflict and require user
23 | # intervention with every merge. To do so, just uncomment the entries below
24 | ###############################################################################
25 | #*.sln merge=binary
26 | #*.csproj merge=binary
27 | #*.vbproj merge=binary
28 | #*.vcxproj merge=binary
29 | #*.vcproj merge=binary
30 | #*.dbproj merge=binary
31 | #*.fsproj merge=binary
32 | #*.lsproj merge=binary
33 | #*.wixproj merge=binary
34 | #*.modelproj merge=binary
35 | #*.sqlproj merge=binary
36 | #*.wwaproj merge=binary
37 |
38 | ###############################################################################
39 | # behavior for image files
40 | #
41 | # image files are treated as binary by default.
42 | ###############################################################################
43 | #*.jpg binary
44 | #*.png binary
45 | #*.gif binary
46 |
47 | ###############################################################################
48 | # diff behavior for common document formats
49 | #
50 | # Convert binary document formats to text before diffing them. This feature
51 | # is only available from the command line. Turn it on by uncommenting the
52 | # entries below.
53 | ###############################################################################
54 | #*.doc diff=astextplain
55 | #*.DOC diff=astextplain
56 | #*.docx diff=astextplain
57 | #*.DOCX diff=astextplain
58 | #*.dot diff=astextplain
59 | #*.DOT diff=astextplain
60 | #*.pdf diff=astextplain
61 | #*.PDF diff=astextplain
62 | #*.rtf diff=astextplain
63 | #*.RTF diff=astextplain
64 |
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/.gitignore:
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1 | ## Ignore Visual Studio temporary files, build results, and
2 | ## files generated by popular Visual Studio add-ons.
3 |
4 | # User-specific files
5 | *.suo
6 | *.user
7 | *.userosscache
8 | *.sln.docstates
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10 | # User-specific files (MonoDevelop/Xamarin Studio)
11 | *.userprefs
12 |
13 | # Build results
14 | [Dd]ebug/
15 | [Dd]ebugPublic/
16 | [Rr]elease/
17 | [Rr]eleases/
18 | [Xx]64/
19 | [Xx]86/
20 | [Bb]uild/
21 | bld/
22 | [Bb]in/
23 | [Oo]bj/
24 |
25 | # Visual Studio 2015 cache/options directory
26 | .vs/
27 | # Uncomment if you have tasks that create the project's static files in wwwroot
28 | #wwwroot/
29 |
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31 | [Tt]est[Rr]esult*/
32 | [Bb]uild[Ll]og.*
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36 | TestResult.xml
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38 | # Build Results of an ATL Project
39 | [Dd]ebugPS/
40 | [Rr]eleasePS/
41 | dlldata.c
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44 | project.lock.json
45 | artifacts/
46 |
47 | *_i.c
48 | *_p.c
49 | *_i.h
50 | *.ilk
51 | *.meta
52 | *.obj
53 | *.pch
54 | *.pdb
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64 | *.log
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81 | *.sdf
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85 | # Visual Studio profiler
86 | *.psess
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88 | *.vspx
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95 | *.gpState
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98 | _ReSharper*/
99 | *.[Rr]e[Ss]harper
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103 | .JustCode
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105 | # TeamCity is a build add-in
106 | _TeamCity*
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109 | *.dotCover
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111 | # NCrunch
112 | _NCrunch_*
113 | .*crunch*.local.xml
114 | nCrunchTemp_*
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116 | # MightyMoose
117 | *.mm.*
118 | AutoTest.Net/
119 |
120 | # Web workbench (sass)
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123 | # Installshield output folder
124 | [Ee]xpress/
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126 | # DocProject is a documentation generator add-in
127 | DocProject/buildhelp/
128 | DocProject/Help/*.HxT
129 | DocProject/Help/*.HxC
130 | DocProject/Help/*.hhc
131 | DocProject/Help/*.hhk
132 | DocProject/Help/*.hhp
133 | DocProject/Help/Html2
134 | DocProject/Help/html
135 |
136 | # Click-Once directory
137 | publish/
138 |
139 | # Publish Web Output
140 | *.[Pp]ublish.xml
141 | *.azurePubxml
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143 | # TODO: Un-comment the next line if you do not want to checkin
144 | # your web deploy settings because they may include unencrypted
145 | # passwords
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154 | !**/packages/build/
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156 | #!**/packages/repositories.config
157 | # NuGet v3's project.json files produces more ignoreable files
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178 | *.[Cc]ache
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181 |
182 | # Others
183 | ClientBin/
184 | [Ss]tyle[Cc]op.*
185 | ~$*
186 | *~
187 | *.dbmdl
188 | *.dbproj.schemaview
189 | *.pfx
190 | *.publishsettings
191 | node_modules/
192 | orleans.codegen.cs
193 |
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195 | Generated_Code/
196 |
197 | # Backup & report files from converting an old project file
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199 | # because we have git ;-)
200 | _UpgradeReport_Files/
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202 | UpgradeLog*.XML
203 | UpgradeLog*.htm
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205 | # SQL Server files
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207 | *.ldf
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210 | *.rdl.data
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221 | .ntvs_analysis.dat
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230 | **/*.HTMLClient/GeneratedArtifacts
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232 | **/*.DesktopClient/ModelManifest.xml
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234 | **/*.Server/ModelManifest.xml
235 | _Pvt_Extensions
236 |
237 | # LightSwitch generated files
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240 |
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242 | .paket/paket.exe
243 |
244 | # FAKE - F# Make
245 | .fake/
--------------------------------------------------------------------------------
/Download Manager.sln:
--------------------------------------------------------------------------------
1 |
2 | Microsoft Visual Studio Solution File, Format Version 12.00
3 | # Visual Studio 14
4 | VisualStudioVersion = 14.0.25420.1
5 | MinimumVisualStudioVersion = 10.0.40219.1
6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DownloadManager", "DownloadManager\DownloadManager.csproj", "{01A33DA8-08E6-4DA4-8630-D589ABA9F96B}"
7 | EndProject
8 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Downloader", "Downloader\Downloader.csproj", "{3B5EE308-E5FF-473E-8A36-8159B0493C56}"
9 | EndProject
10 | Global
11 | GlobalSection(SolutionConfigurationPlatforms) = preSolution
12 | Debug|Any CPU = Debug|Any CPU
13 | Release|Any CPU = Release|Any CPU
14 | EndGlobalSection
15 | GlobalSection(ProjectConfigurationPlatforms) = postSolution
16 | {01A33DA8-08E6-4DA4-8630-D589ABA9F96B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
17 | {01A33DA8-08E6-4DA4-8630-D589ABA9F96B}.Debug|Any CPU.Build.0 = Debug|Any CPU
18 | {01A33DA8-08E6-4DA4-8630-D589ABA9F96B}.Release|Any CPU.ActiveCfg = Release|Any CPU
19 | {01A33DA8-08E6-4DA4-8630-D589ABA9F96B}.Release|Any CPU.Build.0 = Release|Any CPU
20 | {3B5EE308-E5FF-473E-8A36-8159B0493C56}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
21 | {3B5EE308-E5FF-473E-8A36-8159B0493C56}.Debug|Any CPU.Build.0 = Debug|Any CPU
22 | {3B5EE308-E5FF-473E-8A36-8159B0493C56}.Release|Any CPU.ActiveCfg = Release|Any CPU
23 | {3B5EE308-E5FF-473E-8A36-8159B0493C56}.Release|Any CPU.Build.0 = Release|Any CPU
24 | EndGlobalSection
25 | GlobalSection(SolutionProperties) = preSolution
26 | HideSolutionNode = FALSE
27 | EndGlobalSection
28 | EndGlobal
29 |
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/DownloadManager/App.config:
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
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/DownloadManager/App.xaml:
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1 |
6 |
7 |
8 |
9 |
10 |
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/DownloadManager/App.xaml.cs:
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1 | using System.Windows;
2 |
3 | namespace DownloadManager
4 | {
5 | ///
6 | /// Interaction logic for App.xaml
7 | ///
8 | public partial class App : Application
9 | {
10 | }
11 | }
12 |
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/DownloadManager/Download Manager.ico:
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https://raw.githubusercontent.com/KarthikMAM/Download-Manager/ff8872a98474351eed178a3c591b6475e5efa4d8/DownloadManager/Download Manager.ico
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/DownloadManager/DownloadManager.csproj:
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1 |
2 |
3 |
4 |
5 | Debug
6 | AnyCPU
7 | {01A33DA8-08E6-4DA4-8630-D589ABA9F96B}
8 | WinExe
9 | Properties
10 | DownloadManager
11 | DownloadManager
12 | v4.5.2
13 | 512
14 | {60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}
15 | 4
16 | true
17 | 721a284baf954769bdd90e1af815bb28
18 |
19 |
20 |
21 | AnyCPU
22 | true
23 | full
24 | false
25 | bin\Debug\
26 | DEBUG;TRACE
27 | prompt
28 | 4
29 | false
30 |
31 |
32 | AnyCPU
33 | pdbonly
34 | true
35 | bin\Release\
36 | TRACE
37 | prompt
38 | 4
39 | false
40 |
41 |
42 | Download Manager.ico
43 |
44 |
45 |
46 |
47 |
48 |
49 |
50 |
51 |
52 |
53 |
54 | 4.0
55 |
56 |
57 |
58 |
59 |
60 |
61 |
62 | MSBuild:Compile
63 | Designer
64 |
65 |
66 | MSBuild:Compile
67 | Designer
68 |
69 |
70 | App.xaml
71 | Code
72 |
73 |
74 | MainWindow.xaml
75 | Code
76 |
77 |
78 |
79 |
80 | Code
81 |
82 |
83 | True
84 | Settings.settings
85 | True
86 |
87 |
88 | SettingsSingleFileGenerator
89 | Settings.Designer.cs
90 |
91 |
92 |
93 |
94 |
95 |
96 |
97 |
98 | {3B5EE308-E5FF-473E-8A36-8159B0493C56}
99 | Downloader
100 |
101 |
102 |
103 |
104 |
105 |
106 |
113 |
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/DownloadManager/MainWindow.xaml:
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1 |
9 |
10 |
11 |
12 |
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17 |
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40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 |
50 |
51 |
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/DownloadManager/MainWindow.xaml.cs:
--------------------------------------------------------------------------------
1 | using Downloader;
2 | using Microsoft.Win32;
3 | using System;
4 | using System.Threading;
5 | using System.Windows;
6 | using System.Windows.Controls;
7 | using System.Windows.Threading;
8 | using static Downloader.DownloadEngine;
9 |
10 | namespace DownloadManager
11 | {
12 | ///
13 | /// Interaction logic for MainWindow.xaml
14 | ///
15 | public partial class MainWindow : Window
16 | {
17 | //download engine, download and tracker
18 | Download download;
19 | DownloadEngine downloadEngine;
20 | DispatcherTimer downloadTracker;
21 |
22 | ///
23 | /// initializes the main window
24 | ///
25 | public MainWindow()
26 | {
27 | InitializeComponent();
28 |
29 | //if text is in clipboard copy it.
30 | if (Clipboard.ContainsText() && Clipboard.GetText().Contains("http"))
31 | {
32 | txtSource.Text = Clipboard.GetText();
33 | }
34 | }
35 |
36 | ///
37 | /// upon closing the window abort the download
38 | ///
39 | ///
40 | ///
41 | private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
42 | {
43 | if (downloadEngine != null) downloadEngine.Abort();
44 | }
45 |
46 | ///
47 | /// responses to various button click scenarios
48 | ///
49 | ///
50 | ///
51 | private void Button_Click(object sender, RoutedEventArgs e)
52 | {
53 | //get the sender button
54 | Button btSender = (Button)sender;
55 |
56 | //for controller use content and others their name
57 | switch (btSender != btController ? btSender.Name : btSender.Content.ToString())
58 | {
59 | case "btTarget":
60 |
61 | new Thread((dwnlSource) =>
62 | {
63 | try
64 | {
65 | //find the file name from the url and use it
66 | SaveFileDialog selectTarget = new SaveFileDialog();
67 | selectTarget.FileName = Download.FindFileName((string)dwnlSource);
68 | selectTarget.Title = "Select a file to save download";
69 | string dwnlTarget = selectTarget.ShowDialog() == true ? selectTarget.FileName : "";
70 |
71 | //set file path in application thread
72 | Application.Current.Dispatcher.Invoke(() => txtTarget.Text = dwnlTarget);
73 | }
74 | catch (Exception ex)
75 | {
76 | //show exception message
77 | MessageBox.Show(ex.Message, "Download Failed");
78 | }
79 | }).Start(txtSource.Text);
80 |
81 | break;
82 | case "Start":
83 |
84 | //disable items on window to prevent inconsistency
85 | if (txtSource.Text.Length != 0 && txtTarget.Text.Length != 0)
86 | {
87 | //disable UI
88 | txtSource.IsEnabled
89 | = txtTarget.IsEnabled
90 | = btTarget.IsEnabled
91 | = btSender.IsEnabled
92 | = false;
93 |
94 | //get the source and target url
95 | string dwnlSource = txtSource.Text;
96 | string dwnlTarget = txtTarget.Text;
97 |
98 | new Thread(() =>
99 | {
100 | try
101 | {
102 | //create a new download job
103 | download = new Download(dwnlSource, dwnlTarget);
104 |
105 | //run the rest in application thread
106 | Application.Current.Dispatcher.Invoke(() =>
107 | {
108 | //stop the download tracker and engine if they exist
109 | if (downloadTracker != null) { downloadTracker.Stop(); }
110 | if (downloadEngine != null) { downloadEngine.Abort().Join(); }
111 |
112 | //create the tracker, engine
113 | downloadTracker = new DispatcherTimer();
114 | downloadTracker.Interval = TimeSpan.FromSeconds(1);
115 | downloadTracker.Tick += Tracker;
116 | downloadTracker.Start();
117 |
118 | //create the engine
119 | downloadEngine = new DownloadEngine(download, downloadTracker);
120 | downloadEngine.Start();
121 | });
122 | }
123 | catch (Exception ex)
124 | {
125 | MessageBox.Show(ex.Message, "Download Failed");
126 |
127 | //reset the UI in application thread
128 | Application.Current.Dispatcher.Invoke(() => ResetUI());
129 | }
130 | }).Start();
131 | }
132 | else
133 | {
134 | MessageBox.Show("Need Download source and target path", "Incomplete Data");
135 | }
136 |
137 | break;
138 | case "Pause":
139 | downloadEngine.Abort();
140 |
141 | break;
142 | case "Resume":
143 | downloadEngine.Start();
144 |
145 | break;
146 | }
147 | }
148 |
149 | ///
150 | /// creates a string animation using dots
151 | ///
152 | /// current string with n dots
153 | /// new string with (n + 1) % 3 dots
154 | ///
155 | private string DotAnimation(string currentString, string newString)
156 | {
157 | string dotAnimation = "";
158 | if (currentString.Contains(" ● ● ●")) dotAnimation = " ● ";
159 | else if (currentString.Contains(" ● ● ")) dotAnimation = " ● ● ●";
160 | else dotAnimation = " ● ● ";
161 |
162 | return newString + dotAnimation;
163 | }
164 |
165 | ///
166 | /// resets the UI to normal state
167 | ///
168 | private void ResetUI()
169 | {
170 | //reset UI
171 | btController.Content = "Start";
172 | txtSource.IsEnabled
173 | = txtTarget.IsEnabled
174 | = btTarget.IsEnabled
175 | = btController.IsEnabled
176 | = true;
177 | }
178 |
179 | ///
180 | /// download engine tracker updating the UI
181 | ///
182 | /// dispatcher timer tracker
183 | /// eventargs
184 | private void Tracker(object sender, EventArgs e)
185 | {
186 | //tracking progress data
187 | string strSize = Download.FormatBytes(download.DwnlSize);
188 | string strCompleted = Download.FormatBytes(download.DwnlSizeCompleted);
189 | string strSpeed = "0.00 KBps";
190 | string strProgress = txtProgress.Content.ToString();
191 | double valProgress = 0;
192 |
193 | switch (downloadEngine.State)
194 | {
195 | case DwnlState.Create:
196 | strProgress = DotAnimation(strProgress, "Creating download job");
197 |
198 | break;
199 | case DwnlState.Idle:
200 | strProgress = "Waiting to start / resume download ● ● ●";
201 |
202 | //enable resume button
203 | btController.Content = "Resume";
204 | btController.IsEnabled = true;
205 |
206 | break;
207 | case DwnlState.Start:
208 | strProgress = DotAnimation(strProgress, "Starting download");
209 |
210 | break;
211 | case DwnlState.Download:
212 | strSpeed = Download.FormatBytes(download.DwnlSpeed) + "ps";
213 | valProgress = download.DwnlProgress;
214 | strProgress = DotAnimation(strProgress, string.Format("Downloading at {0:f2}%", download.DwnlProgress));
215 |
216 | //enable the pause button
217 | btController.Content = "Pause";
218 | btController.IsEnabled = true;
219 |
220 | break;
221 | case DwnlState.Append:
222 | valProgress = download.AppendProgress;
223 | strProgress = DotAnimation(strProgress, string.Format("Appending at {0:f2}%", download.AppendProgress));
224 |
225 | //disable controller
226 | btController.IsEnabled = false;
227 |
228 | break;
229 | case DwnlState.Complete:
230 | valProgress = 100;
231 | strProgress = "Download complete ● ● ●";
232 |
233 | ResetUI();
234 |
235 | break;
236 | case DwnlState.Error:
237 | strProgress = "Download error ● ● ●";
238 |
239 | //display error message
240 | if (txtProgress.Content.ToString() != strProgress)
241 | {
242 | MessageBox.Show(downloadEngine.Error.Message, "Download Failed");
243 | }
244 |
245 | ResetUI();
246 |
247 | break;
248 | case DwnlState.Abort:
249 | strProgress = DotAnimation(strProgress, "Aborting download");
250 |
251 | //disable controller button
252 | btController.IsEnabled = false;
253 |
254 | break;
255 | }
256 |
257 | //updatring progress data
258 | txtSize.Content = strSize;
259 | txtComplete.Content = strCompleted;
260 | txtSpeed.Content = strSpeed;
261 | txtProgress.Content = strProgress;
262 | barProgress.Value = valProgress;
263 | }
264 |
265 | ///
266 | /// url click event
267 | ///
268 | ///
269 | ///
270 | private void Url_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
271 | {
272 | switch (((TextBlock)sender).Name)
273 | {
274 | case "Github":
275 | System.Diagnostics.Process.Start("https://github.com/KarthikMAM");
276 | break;
277 | case "Repo":
278 | System.Diagnostics.Process.Start("https://github.com/KarthikMAM/Download-Manager");
279 | break;
280 | case "Issues":
281 | System.Diagnostics.Process.Start("https://github.com/KarthikMAM/Download-Manager/issues");
282 | break;
283 | }
284 | }
285 | }
286 | }
287 |
--------------------------------------------------------------------------------
/DownloadManager/Properties/AssemblyInfo.cs:
--------------------------------------------------------------------------------
1 | using System.Reflection;
2 | using System.Runtime.InteropServices;
3 | using System.Windows;
4 |
5 | // General Information about an assembly is controlled through the following
6 | // set of attributes. Change these attribute values to modify the information
7 | // associated with an assembly.
8 | [assembly: AssemblyTitle("DownloadManager")]
9 | [assembly: AssemblyDescription("")]
10 | [assembly: AssemblyConfiguration("")]
11 | [assembly: AssemblyCompany("")]
12 | [assembly: AssemblyProduct("DownloadManager")]
13 | [assembly: AssemblyCopyright("Copyright © 2016")]
14 | [assembly: AssemblyTrademark("")]
15 | [assembly: AssemblyCulture("")]
16 |
17 | // Setting ComVisible to false makes the types in this assembly not visible
18 | // to COM components. If you need to access a type in this assembly from
19 | // COM, set the ComVisible attribute to true on that type.
20 | [assembly: ComVisible(false)]
21 |
22 | //In order to begin building localizable applications, set
23 | //CultureYouAreCodingWith in your .csproj file
24 | //inside a . For example, if you are using US english
25 | //in your source files, set the to en-US. Then uncomment
26 | //the NeutralResourceLanguage attribute below. Update the "en-US" in
27 | //the line below to match the UICulture setting in the project file.
28 |
29 | //[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
30 |
31 |
32 | [assembly: ThemeInfo(
33 | ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
34 | //(used if a resource is not found in the page,
35 | // or application resource dictionaries)
36 | ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
37 | //(used if a resource is not found in the page,
38 | // app, or any theme specific resource dictionaries)
39 | )]
40 |
41 |
42 | // Version information for an assembly consists of the following four values:
43 | //
44 | // Major Version
45 | // Minor Version
46 | // Build Number
47 | // Revision
48 | //
49 | // You can specify all the values or you can default the Build and Revision Numbers
50 | // by using the '*' as shown below:
51 | // [assembly: AssemblyVersion("1.0.*")]
52 | [assembly: AssemblyVersion("1.0.0.0")]
53 | [assembly: AssemblyFileVersion("1.0.0.0")]
54 |
--------------------------------------------------------------------------------
/DownloadManager/Properties/Settings.Designer.cs:
--------------------------------------------------------------------------------
1 | //------------------------------------------------------------------------------
2 | //
3 | // This code was generated by a tool.
4 | // Runtime Version:4.0.30319.42000
5 | //
6 | // Changes to this file may cause incorrect behavior and will be lost if
7 | // the code is regenerated.
8 | //
9 | //------------------------------------------------------------------------------
10 |
11 | namespace DownloadManager.Properties {
12 |
13 |
14 | [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
15 | [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "14.0.0.0")]
16 | internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
17 |
18 | private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
19 |
20 | public static Settings Default {
21 | get {
22 | return defaultInstance;
23 | }
24 | }
25 | }
26 | }
27 |
--------------------------------------------------------------------------------
/DownloadManager/Properties/Settings.settings:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
--------------------------------------------------------------------------------
/Downloader/ChunkDownloader.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.IO;
3 | using System.Net;
4 | using System.Threading;
5 | using System.Threading.Tasks;
6 |
7 | namespace Downloader
8 | {
9 | ///
10 | /// each of these downloads one chunk of the download
11 | ///
12 | public class ChunkDownloader
13 | {
14 | ////constants
15 | //private const int BUFFER_SIZE = 8192;
16 |
17 | ////download thread and exceptions
18 | //private Thread dwnlThread;
19 | //private Exception dwnlException;
20 |
21 | ////chunk data
22 | //private Chunks chunks;
23 | //private long id;
24 |
25 | /////
26 | ///// initializes a downloader for the given chunk
27 | /////
28 | ///// chunks meta data repo
29 | ///// id of the chunk
30 | //public ChunkDownloader(Chunks chunks, long id)
31 | //{
32 | // //set the parameters
33 | // this.chunks = chunks;
34 | // this.id = id;
35 | //}
36 |
37 | /////
38 | ///// create and start the download thread
39 | /////
40 | //public void Start()
41 | //{
42 | // dwnlException = null;
43 | // dwnlThread = new Thread(() => Download());
44 | // dwnlThread.Start();
45 | //}
46 |
47 | /////
48 | ///// waits till the thread finishes running
49 | ///// if there is any error throws exceptions
50 | /////
51 | //public void Join()
52 | //{
53 | // if (dwnlThread != null && dwnlThread.IsAlive)
54 | // {
55 | // dwnlThread.Join();
56 | // }
57 | // if (dwnlException != null) throw dwnlException;
58 | //}
59 |
60 | /////
61 | ///// aborts the running thread
62 | /////
63 | //public void Abort()
64 | //{
65 | // if (dwnlThread != null && dwnlThread.IsAlive)
66 | // {
67 | // dwnlThread.Abort();
68 | // dwnlThread.Join();
69 | // }
70 | //}
71 |
72 |
73 | }
74 | }
75 |
--------------------------------------------------------------------------------
/Downloader/Chunks.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.IO;
3 | using System.Net;
4 | using System.Threading;
5 | using System.Threading.Tasks;
6 |
7 | namespace Downloader
8 | {
9 | ///
10 | /// defines all the chunk download jobs of a download job
11 | ///
12 | public class Chunks : IChunks
13 | {
14 | //constants
15 | public const int CHUNK_BUFFER_SIZE = 8 * Download.KB;
16 | public const long CHUNK_SIZE_LIMIT = 10 * Download.MB;
17 |
18 | //chunk meta-data
19 | public long ChunkSize { private set; get; }
20 | public long ChunkCount { private set; get; }
21 | public string ChunkSource { private set; get; }
22 | public string ChunkTargetTemplate { private set; get; }
23 |
24 | //chunk tracking data
25 | public long[] ChunkProgress { private set; get; }
26 | public long TotalSize { private set; get; }
27 |
28 | ///
29 | /// creates the chunk data repo
30 | ///
31 | /// url to download the chunk from
32 | /// total size of all the chunk
33 | public Chunks(string chunkSource, long totalSize)
34 | {
35 | //set chunk meta-data
36 | TotalSize = totalSize;
37 | ChunkSource = chunkSource;
38 | ChunkCount = FindChunkCount();
39 | ChunkSize = ChunkCount != 1 ? CHUNK_SIZE_LIMIT : totalSize;
40 |
41 | //set chunks tracking data
42 | ChunkProgress = new long[ChunkCount];
43 |
44 | //chunks cache directory
45 | ChunkTargetTemplate = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
46 | + "\\Kappspot\\Download-Manager\\"
47 | + (uint)(ChunkSource + ChunkSize + TotalSize).GetHashCode()
48 | + "/file {0}.chunk";
49 |
50 | //create a temp directory for chunks
51 | if (!Directory.Exists(Path.GetDirectoryName(ChunkTarget(0))))
52 | Directory.CreateDirectory(Path.GetDirectoryName(ChunkTarget(0)));
53 | }
54 |
55 | ///
56 | /// finds the allowed number of chunks
57 | ///
58 | /// the allowed chunk count
59 | private long FindChunkCount()
60 | {
61 | //request for finding the number of chunks
62 | HttpWebRequest rangeReq = WebRequest.CreateHttp(ChunkSource);
63 | rangeReq.AddRange(0, CHUNK_SIZE_LIMIT);
64 | rangeReq.AllowAutoRedirect = true;
65 |
66 | //returns appropriate number of chunks based on accept-ranges
67 | using (HttpWebResponse rangeRes = (HttpWebResponse)rangeReq.GetResponse())
68 | {
69 | if (rangeRes.StatusCode < HttpStatusCode.Redirect && rangeRes.Headers[HttpResponseHeader.AcceptRanges] == "bytes")
70 | {
71 | return (TotalSize / CHUNK_SIZE_LIMIT + (TotalSize % CHUNK_SIZE_LIMIT > 0 ? 1 : 0));
72 | }
73 | else
74 | {
75 | return 1;
76 | }
77 | }
78 | }
79 |
80 | ///
81 | /// getter for the chunk target based on chunk's id
82 | ///
83 | /// chunk's id
84 | /// chunk's target path
85 | public string ChunkTarget(long chunkId) { return string.Format(ChunkTargetTemplate, chunkId); }
86 |
87 | ///
88 | /// chunk download logic
89 | ///
90 | /// chunk to download
91 | public void DownloadChunk(long chunkId)
92 | {
93 | //adjust the download range and progress for resume connections
94 | long chunkStart = ChunkSize * chunkId;
95 | long chunkEnd = Math.Min(chunkStart + ChunkSize - 1, TotalSize);
96 | long chunkDownloaded = File.Exists(ChunkTarget(chunkId)) ? new FileInfo(ChunkTarget(chunkId)).Length : 0;
97 | chunkStart += chunkDownloaded;
98 | ChunkProgress[chunkId] = chunkDownloaded;
99 |
100 | //check if there is a need to download
101 | if (chunkStart < chunkEnd)
102 | {
103 | //prepare the download request
104 | HttpWebRequest dwnlReq = WebRequest.CreateHttp(ChunkSource);
105 | dwnlReq.AllowAutoRedirect = true;
106 | dwnlReq.AddRange(chunkStart, chunkEnd);
107 | dwnlReq.ServicePoint.ConnectionLimit = 100;
108 | dwnlReq.ServicePoint.Expect100Continue = false;
109 |
110 | try
111 | {
112 | //prepare the streams
113 | using (HttpWebResponse dwnlRes = (HttpWebResponse)dwnlReq.GetResponse())
114 | using (Stream dwnlSource = dwnlRes.GetResponseStream())
115 | using (FileStream dwnlTarget = new FileStream(ChunkTarget(chunkId), FileMode.Append, FileAccess.Write))
116 | {
117 | //buffer and downloaded buffer size
118 | int bufferedSize;
119 | byte[] buffer = new byte[CHUNK_BUFFER_SIZE];
120 |
121 | do
122 | {
123 | //read the download response async and wait for the results
124 | Task bufferReader = dwnlSource.ReadAsync(buffer, 0, CHUNK_BUFFER_SIZE);
125 | bufferReader.Wait();
126 |
127 | //update buffered size
128 | bufferedSize = bufferReader.Result;
129 | Interlocked.Add(ref ChunkProgress[chunkId], bufferedSize);
130 |
131 | //write the buffer to target
132 | dwnlTarget.Write(buffer, 0, bufferedSize);
133 |
134 | } while (bufferedSize > 0);
135 | }
136 | }
137 | finally
138 | {
139 | dwnlReq.Abort();
140 | }
141 | }
142 | }
143 | }
144 | }
145 |
--------------------------------------------------------------------------------
/Downloader/Download.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.IO;
3 | using System.Linq;
4 | using System.Net;
5 | using System.Threading;
6 |
7 | namespace Downloader
8 | {
9 | ///
10 | /// defines the download job
11 | ///
12 | public class Download : IDownload
13 | {
14 | //constants
15 | private const string FILE_SIZE_SERVER = "http://download-manager.esy.es/?url={0}";
16 | public const int KB = 1024;
17 | public const long MB = KB * KB;
18 |
19 | //download file properties
20 | public string DwnlSource { private set; get; }
21 | public string DwnlTarget { set; get; }
22 | public long DwnlSize { private set; get; }
23 |
24 | //download chunk jobs and scheduler
25 | public Chunks DwnlChunks { private set; get; }
26 | public DownloadScheduler DwnlScheduler { private set; get; }
27 |
28 | //download tracking properties
29 | public double DwnlSizeCompleted { private set; get; }
30 | public double DwnlSpeed { private set; get; }
31 | public double DwnlProgress { private set; get; }
32 | private long windowStart;
33 |
34 | //download append tracking properties
35 | public double AppendProgress { private set; get; }
36 |
37 | ///
38 | /// creates a new download job
39 | ///
40 | /// url to download from
41 | /// url to download to
42 | public Download(string dwnlSource, string dwnlTarget)
43 | {
44 | //set the download data
45 | DwnlSource = dwnlSource;
46 | DwnlTarget = dwnlTarget;
47 | DwnlSize = FindFileSize(DwnlSource);
48 |
49 | //create the virtual chunk download jobs and its scheduler
50 | DwnlChunks = new Chunks(DwnlSource, DwnlSize);
51 | DwnlScheduler = new DownloadScheduler(DwnlChunks);
52 | }
53 |
54 | ///
55 | /// formats the byte size in KB or MB string
56 | ///
57 | /// no of bytes
58 | /// bytes in KB or MB
59 | public static string FormatBytes(double bytes)
60 | {
61 | if (bytes < MB) return String.Format("{0:f2} KB", bytes / KB);
62 | else return String.Format("{0:f2} MB", bytes / MB);
63 | }
64 |
65 | ///
66 | /// finds the download file name from the url
67 | ///
68 | /// the file whose name we want to find
69 | /// the string with the file name
70 | public static string FindFileName(string dwnlSource)
71 | {
72 | //prepare the request headers
73 | HttpWebRequest fileNameReq = WebRequest.CreateHttp(dwnlSource);
74 | fileNameReq.AllowAutoRedirect = true;
75 | fileNameReq.AddRange(0, Chunks.CHUNK_SIZE_LIMIT);
76 |
77 | using (HttpWebResponse fileNameRes = (HttpWebResponse)fileNameReq.GetResponse())
78 | {
79 | //get file name markers in the data headers
80 | string contentType = fileNameRes.ContentType;
81 | string physicalPath = fileNameRes.ResponseUri.AbsolutePath.Split('/').Last();
82 |
83 | //use contenttype if extension not found
84 | if (physicalPath.Contains('.'))
85 | {
86 | return physicalPath;
87 | }
88 | else
89 | {
90 | return physicalPath + "." + contentType.Split('/').Last();
91 | }
92 | }
93 | }
94 |
95 | ///
96 | /// updates the download progress
97 | ///
98 | /// time span of update
99 | public void UpdateDownloadProgress(double timeSpan)
100 | {
101 | //initial download progress parameters
102 | double bufferedSize;
103 | double downloadedSize = DwnlChunks.ChunkSize * windowStart;
104 | Chunks chunks = DwnlChunks;
105 |
106 | //adjust the start of the window if completed
107 | while (windowStart < chunks.ChunkCount)
108 | {
109 | bufferedSize = Interlocked.Read(ref chunks.ChunkProgress[windowStart]);
110 | if (bufferedSize == chunks.ChunkSize)
111 | {
112 | windowStart++;
113 | downloadedSize += chunks.ChunkSize;
114 | }
115 | else
116 | {
117 | break;
118 | }
119 | }
120 |
121 | //update the size of the active chunks
122 | for (long i = windowStart; i < chunks.ChunkCount; i++)
123 | {
124 | bufferedSize = Interlocked.Read(ref DwnlChunks.ChunkProgress[i]);
125 | if (bufferedSize != 0)
126 | {
127 | downloadedSize += bufferedSize;
128 | }
129 | else
130 | {
131 | break;
132 | }
133 | }
134 |
135 | //compute the speed and progress
136 | DwnlSpeed = Math.Max(0, downloadedSize - DwnlSizeCompleted) / timeSpan;
137 | DwnlSizeCompleted = downloadedSize;
138 | DwnlProgress = DwnlSizeCompleted / DwnlSize * 100;
139 | }
140 |
141 | ///
142 | /// updating the append progress
143 | ///
144 | public void UpdateAppendProgress()
145 | {
146 | AppendProgress = File.Exists(DwnlTarget) ? (double)new FileInfo(DwnlTarget).Length / DwnlSize * 100 : 0;
147 | }
148 |
149 | ///
150 | /// finds the download file size from the url
151 | ///
152 | /// url of the file whose file size we want to find
153 | /// the download file size in bytes
154 | private static long FindFileSize(string dwnlSource)
155 | {
156 | try
157 | {
158 | //first create a native header request
159 | HttpWebRequest fileSizeReq = WebRequest.CreateHttp(dwnlSource);
160 | fileSizeReq.AllowAutoRedirect = true;
161 | using (HttpWebResponse fileSizeRes = (HttpWebResponse)fileSizeReq.GetResponse())
162 | {
163 | return fileSizeRes.ContentLength;
164 | }
165 | }
166 | catch
167 | {
168 | //if problem use the proxy file size server
169 | HttpWebRequest proxyFileSizeReq = WebRequest.CreateHttp(string.Format(FILE_SIZE_SERVER, dwnlSource));
170 | using (HttpWebResponse proxyFileSizeRes = (HttpWebResponse)proxyFileSizeReq.GetResponse())
171 | using (StreamReader fileSizeReader = new StreamReader(proxyFileSizeRes.GetResponseStream()))
172 | {
173 | return long.Parse(fileSizeReader.ReadToEnd());
174 | }
175 | }
176 | }
177 | }
178 | }
179 |
--------------------------------------------------------------------------------
/Downloader/DownloadEngine.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.IO;
3 | using System.Threading;
4 | using System.Windows.Threading;
5 |
6 | namespace Downloader
7 | {
8 | ///
9 | /// download engine executes a download job
10 | ///
11 | public class DownloadEngine : IDownloadEngine
12 | {
13 | //the download the engine operates on
14 | public Download Download;
15 |
16 | //engine state properties
17 | public enum DwnlState { Create, Idle, Start, Download, Append, Complete, Error, Abort }
18 | public DwnlState State { private set; get; }
19 | public bool IsStateCompleted { private set; get; }
20 | public Exception Error { private set; get; }
21 |
22 | //engine worker
23 | private Thread workerThread;
24 |
25 | //engine trackers
26 | private DispatcherTimer downloadTracker;
27 |
28 | ///
29 | /// create a new engine for the download
30 | ///
31 | /// download to operate on
32 | /// tracker to monitor the download optional
33 | public DownloadEngine(Download download, DispatcherTimer downloadTracker = null)
34 | {
35 | try
36 | {
37 | IsStateCompleted = false; State = DwnlState.Create;
38 |
39 | //save the download job
40 | Download = download;
41 |
42 | //if there is a tracker then add a tick to it
43 | if (downloadTracker != null)
44 | {
45 | this.downloadTracker = downloadTracker;
46 | this.downloadTracker.Tick += DownloadTracker_Tick;
47 | }
48 |
49 | IsStateCompleted = false; State = DwnlState.Idle;
50 | }
51 | catch (Exception e)
52 | {
53 | IsStateCompleted = false; State = DwnlState.Error;
54 |
55 | Error = e;
56 |
57 | IsStateCompleted = true;
58 | }
59 | }
60 |
61 | ///
62 | /// tracks the progress of the download
63 | ///
64 | /// which requests tracking on the download
65 | ///
66 | private void DownloadTracker_Tick(object sender, EventArgs e)
67 | {
68 | switch (State)
69 | {
70 | case DwnlState.Complete:
71 | case DwnlState.Download:
72 | if (Download.DwnlProgress < 100)
73 | {
74 | TimeSpan timeSpan = ((DispatcherTimer)sender).Interval;
75 | Download.UpdateDownloadProgress(timeSpan.Seconds + (double)timeSpan.Milliseconds / 1000);
76 | }
77 | break;
78 | case DwnlState.Append:
79 |
80 | Download.UpdateAppendProgress();
81 |
82 | break;
83 | }
84 | }
85 |
86 | ///
87 | /// starts the worker thread for the download job
88 | ///
89 | public void Start()
90 | {
91 | if (State == DwnlState.Idle)
92 | {
93 | IsStateCompleted = false; State = DwnlState.Start;
94 |
95 | //things to reset before starting
96 | Error = null;
97 |
98 | //the flow of various tasks within the worker thread
99 | workerThread = new Thread(() =>
100 | {
101 | try
102 | {
103 | IsStateCompleted = false; State = DwnlState.Download;
104 |
105 | Download.DwnlScheduler.Start();
106 |
107 | IsStateCompleted = false; State = DwnlState.Append;
108 |
109 | Append();
110 |
111 | IsStateCompleted = false; State = DwnlState.Complete;
112 |
113 | Complete();
114 |
115 | IsStateCompleted = true;
116 | }
117 | catch (ThreadAbortException) { /* ignore this exception */ }
118 | catch (Exception e)
119 | {
120 | IsStateCompleted = false; State = DwnlState.Abort;
121 |
122 | Abort().Join();
123 |
124 | IsStateCompleted = false; State = DwnlState.Error;
125 |
126 | Error = e;
127 |
128 | IsStateCompleted = true;
129 | }
130 | });
131 |
132 | //start the worker thread
133 | workerThread.Start();
134 | }
135 | }
136 |
137 | ///
138 | /// aborts the download engine async
139 | ///
140 | /// abort thread upon which we can wait
141 | public Thread Abort()
142 | {
143 | IsStateCompleted = false; State = DwnlState.Abort;
144 |
145 | //create a new thread to abort the engine
146 | Thread abortThread = new Thread(() =>
147 | {
148 | if (workerThread.IsAlive)
149 | {
150 | Download.DwnlScheduler.Abort();
151 | }
152 |
153 | IsStateCompleted = true; State = DwnlState.Idle;
154 | });
155 |
156 | abortThread.Start();
157 | return abortThread;
158 | }
159 |
160 | ///
161 | /// stitches the chunks together
162 | ///
163 | private void Append()
164 | {
165 | //synchronus copy of chunks to target file
166 | using (BufferedStream TargetFile = new BufferedStream(new FileStream(Download.DwnlTarget, FileMode.Create, FileAccess.Write)))
167 | for (int i = 0; i < Download.DwnlChunks.ChunkCount; i++)
168 | using (BufferedStream SourceChunks = new BufferedStream(File.OpenRead(Download.DwnlChunks.ChunkTarget(i))))
169 | SourceChunks.CopyTo(TargetFile);
170 | }
171 |
172 | ///
173 | /// performs cleanup jobs
174 | ///
175 | private void Complete()
176 | {
177 | //cleanup job 1: delete the chunks
178 | for (int i = 0; i < Download.DwnlChunks.ChunkCount; i++)
179 | File.Delete(Download.DwnlChunks.ChunkTarget(i));
180 |
181 | //cleanup job 2: delete the chunk directory
182 | Directory.Delete(Path.GetDirectoryName(Download.DwnlChunks.ChunkTarget(0)));
183 | }
184 | }
185 | }
186 |
--------------------------------------------------------------------------------
/Downloader/DownloadScheduler.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.Threading;
3 |
4 | namespace Downloader
5 | {
6 | public class DownloadScheduler : IDownloadScheduler
7 | {
8 | //constants
9 | private const long SCHEDULER_LIMIT = 10;
10 |
11 | //scheduler data
12 | private long nextChunk;
13 | private Thread[] schedulerThreads;
14 |
15 | //chunk download jobs and exception
16 | public Exception Error { private set; get; }
17 | public Chunks Chunks { private set; get; }
18 |
19 | ///
20 | /// initialize the download scheduler
21 | ///
22 | /// the chunk download jobs
23 | public DownloadScheduler(Chunks chunks) { Chunks = chunks; }
24 |
25 | ///
26 | /// start the scheduler
27 | ///
28 | public void Start()
29 | {
30 | //little clean-up
31 | Error = null;
32 | nextChunk = 0;
33 |
34 | //create new scheduler threads
35 | schedulerThreads = new Thread[Math.Min(SCHEDULER_LIMIT, Chunks.ChunkCount)];
36 | for (int i = 0; i < schedulerThreads.Length; i++)
37 | schedulerThreads[i] = new Thread(() => Schedule());
38 |
39 | //start all the scheduler threads
40 | for (int i = 0; i < schedulerThreads.Length; i++) schedulerThreads[i].Start();
41 |
42 | //wait for the scheduler threads to finish
43 | for (int i = 0; i < schedulerThreads.Length; i++)
44 | {
45 | if (schedulerThreads[i].IsAlive)
46 | {
47 | schedulerThreads[i].Join();
48 | }
49 |
50 | if (Error != null)
51 | {
52 | throw Error;
53 | }
54 | }
55 | }
56 |
57 | ///
58 | /// aborts the scheduler threads and waits for them
59 | ///
60 | public void Abort()
61 | {
62 | //abort all the threads
63 | for (int i = 0; i < schedulerThreads.Length; i++)
64 | {
65 | if (schedulerThreads[i].IsAlive)
66 | {
67 | schedulerThreads[i].Abort();
68 | }
69 | }
70 |
71 | //wait for all the threads to abort
72 | for (int i = 0; i < schedulerThreads.Length; i++)
73 | {
74 | if (schedulerThreads[i].IsAlive)
75 | {
76 | schedulerThreads[i].Join();
77 | }
78 | }
79 | }
80 |
81 | ///
82 | /// scheduler thread logic
83 | ///
84 | private void Schedule()
85 | {
86 | try
87 | {
88 | while (true)
89 | {
90 | long currentChunk = -1;
91 | lock (Chunks)
92 | {
93 | //if next chunk available go to it
94 | if (nextChunk < Chunks.ChunkCount)
95 | {
96 | currentChunk = nextChunk++;
97 | }
98 | }
99 |
100 | //if ok download the next chunk
101 | if (currentChunk != -1 && Error == null)
102 | {
103 | Chunks.DownloadChunk(currentChunk);
104 | }
105 | else
106 | {
107 | break;
108 | }
109 | }
110 | }
111 | catch (Exception e)
112 | {
113 | Error = e;
114 | }
115 | }
116 | }
117 | }
118 |
--------------------------------------------------------------------------------
/Downloader/DownloadTracker.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.IO;
3 | using System.Threading;
4 | using System.Windows.Threading;
5 |
6 | namespace DownloadHelper
7 | {
8 | ///
9 | /// tracks and updates the progress of the download job
10 | ///
11 | public class DownloadTracker
12 | {
13 | //ui message formats based on DownloadState in Downloader
14 | private static string[] PROGRESS_MSGS = new string[]{
15 | "Creatring the download. . .",
16 | "Starting the threads. . .",
17 | "Download {0:f3} % complete. . .",
18 | "Appending files at {0:f3} MB/s. . .",
19 | "Aborting. . .",
20 | "Download Complete. . . Cleaning up",
21 | "Error: {0} ☹",
22 | "Finished. . . ✌",
23 | "Idle. . . Click to Resume / Start. . ."
24 |
25 | };
26 |
27 | //referance to the tracker and the downloader
28 | public DispatcherTimer Tracker { private set; get; }
29 | private Downloader downloader;
30 |
31 | //download progress data
32 | private long[] chunksSize;
33 | private long chunksWindowStart;
34 |
35 | //data of download and append jobs
36 | public double DwnlProgress { private set; get; }
37 | public long DwnlCompleted { private set; get; }
38 | public long DwnlSpeed { private set; get; }
39 | public string DwnlProgressMsg { private set; get; }
40 |
41 | ///
42 | /// initializes the download tracker object
43 | ///
44 | ///
45 | public DownloadTracker(Downloader downloader)
46 | {
47 | //save the downloader referance
48 | this.downloader = downloader;
49 |
50 | //create a new tracker object
51 | Tracker = new DispatcherTimer();
52 | Tracker.Interval = TimeSpan.FromMilliseconds(1000);
53 | Tracker.Tick += Tracker_Tick;
54 | }
55 |
56 | ///
57 | /// state dependant tracker timer
58 | ///
59 | ///
60 | ///
61 | private void Tracker_Tick(object sender, EventArgs e)
62 | {
63 | //depending on the download state update the progress message
64 | //collect the completion data in download and append states
65 | switch (downloader.State)
66 | {
67 | case Downloader.DownloadState.Download:
68 | Downloading();
69 | DwnlProgressMsg = string.Format(PROGRESS_MSGS[(int)downloader.State], DwnlProgress);
70 | break;
71 | case Downloader.DownloadState.Append:
72 | Appending();
73 | DwnlProgressMsg = string.Format(PROGRESS_MSGS[(int)downloader.State], DwnlSpeed / (double)Downloader.MB);
74 | break;
75 | case Downloader.DownloadState.Error:
76 | DwnlProgressMsg = string.Format(PROGRESS_MSGS[(int)downloader.State], downloader.DwnlException);
77 | break;
78 | case Downloader.DownloadState.Finish:
79 | DwnlProgressMsg = PROGRESS_MSGS[(int)downloader.State];
80 | DwnlSpeed = 0;
81 | DwnlProgress = 100;
82 | DwnlCompleted = new FileInfo(downloader.DwnlTarget).Length;
83 | break;
84 | default:
85 | DwnlProgressMsg = PROGRESS_MSGS[(int)downloader.State];
86 | break;
87 | }
88 | }
89 |
90 | ///
91 | /// starts the tracker
92 | ///
93 | public void Start() { Tracker.Start(); }
94 |
95 | ///
96 | /// tracks the download progress
97 | ///
98 | private void Downloading()
99 | {
100 | //sliding windows tracker
101 | //monitors only necessary chunks
102 | if (chunksSize == null) chunksSize = new long[downloader.ChunkCount];
103 |
104 | DwnlSpeed = 0;
105 | for (long i = chunksWindowStart, j = 0; i < downloader.ChunkCount && j < downloader.ChunksActive; i++)
106 | {
107 | //new chunk size and difference found
108 | if (File.Exists(string.Format(downloader.ChunkTarget, i)))
109 | {
110 | long newChunkSize = new FileInfo(string.Format(downloader.ChunkTarget, i)).Length;
111 | if (newChunkSize == downloader.ChunkSize && chunksWindowStart == i) chunksWindowStart += 1;
112 | DwnlSpeed += newChunkSize - chunksSize[i];
113 | chunksSize[i] = newChunkSize;
114 |
115 | //adjust the windows at the end
116 | if (chunksSize[i] == downloader.ChunkSize) { chunksWindowStart++; }
117 | else if (chunksSize[i] > 0) { j++; }
118 | }
119 | }
120 | DwnlCompleted += DwnlSpeed;
121 | DwnlProgress = (double)DwnlCompleted / downloader.DwnlSize * 100;
122 |
123 | //prepare for the next state
124 | if (downloader.State == Downloader.DownloadState.Append)
125 | {
126 | DwnlSpeed = 0;
127 | DwnlCompleted = 0;
128 | DwnlProgress = 0;
129 | }
130 | }
131 |
132 | ///
133 | /// keeps track of appending the file
134 | ///
135 | private void Appending()
136 | {
137 | //log the progress in the old download data
138 | if (downloader.State == Downloader.DownloadState.Append && File.Exists(downloader.DwnlTarget))
139 | {
140 | long newFileSize = new FileInfo(downloader.DwnlTarget).Length;
141 | DwnlSpeed = newFileSize - DwnlCompleted;
142 | DwnlCompleted = newFileSize;
143 | DwnlProgress = (double)DwnlCompleted / downloader.DwnlSize * 100;
144 | }
145 | }
146 | }
147 | }
148 |
--------------------------------------------------------------------------------
/Downloader/Downloader.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.IO;
3 | using System.Linq;
4 | using System.Net;
5 | using System.Threading;
6 |
7 | namespace DownloadHelper
8 | {
9 | ///
10 | /// downloader engine downloads the file in chunks
11 | ///
12 | public class Downloader
13 | {
14 | //constants
15 | private const string FILE_SIZE_SERVER = "http://proxyfilesize.appspot.com/index.php?url={0}";
16 | public const long MB = 1024 * 1024;
17 |
18 | //download file properties
19 | public string DwnlSource { private set; get; }
20 | public string DwnlTarget { set; get; }
21 | public long DwnlSize { private set; get; }
22 |
23 | //generalised chunk properties
24 | public string ChunkSource { get { return DwnlSource; } }
25 | public string ChunkTarget { get { return (uint)(DwnlSource + CHUNK_SIZE_LIMIT).GetHashCode() + "/file {0}.chunk"; } }
26 | public const long CHUNK_SIZE_LIMIT = 4 * MB;
27 | public long ChunkCount { private set; get; }
28 |
29 | //chunk's downloaders, trackers and data
30 | public const long ACTIVE_THREAD_LIMIT = 8;
31 | public DownloadTracker DwnlTracker;
32 | public ChunkDownloader[] ChunkDownloaders;
33 | public Exception DwnlException;
34 |
35 | //downloader state
36 | public enum DownloadState { Create, Start, Download, Append, Abort, Complete, Error, Finish, Idle }
37 | public DownloadState State { private set; get; }
38 |
39 | ///
40 | /// creates a downloader object and set basic params
41 | ///
42 | /// where to download from
43 | /// where to download to
44 | public Downloader(string dwnlSource, String dwnlTarget)
45 | {
46 | //optimisations before download
47 | ServicePointManager.DefaultConnectionLimit = 500;
48 | ServicePointManager.Expect100Continue = false;
49 |
50 | //set download parameters
51 | DwnlSource = dwnlSource;
52 | DwnlTarget = dwnlTarget;
53 |
54 | //start the tracker
55 | DwnlTracker = new DownloadTracker(this);
56 | DwnlTracker.Start();
57 |
58 | //create the download
59 | Create();
60 | }
61 |
62 | ///
63 | /// creates the new download
64 | ///
65 | public void Create()
66 | {
67 | State = DownloadState.Create;
68 |
69 | try
70 | {
71 | //set the download parameters
72 | DwnlSize = FindFileSize();
73 | ChunkCount = FindChunkCount();
74 |
75 | //create a temp directory for chunks
76 | if (!Directory.Exists(Path.GetDirectoryName(ChunkTarget)))
77 | Directory.CreateDirectory(Path.GetDirectoryName(ChunkTarget));
78 |
79 | //idle when no job is there
80 | State = DownloadState.Idle;
81 | }
82 | catch (Exception e)
83 | {
84 | //save the error
85 | DwnlException = e;
86 | State = DownloadState.Error;
87 | }
88 | }
89 |
90 | ///
91 | /// finds the allowed number of chunks
92 | ///
93 | /// the allowed chunk count
94 | private long FindChunkCount()
95 | {
96 | //request for finding the number of chunks
97 | HttpWebRequest rangeReq = WebRequest.CreateHttp(DwnlSource);
98 | rangeReq.AddRange(0, CHUNK_SIZE_LIMIT);
99 | rangeReq.AllowAutoRedirect = true;
100 |
101 | //returns appropriate number of chunks
102 | using (HttpWebResponse rangeRes = (HttpWebResponse)rangeReq.GetResponse())
103 | {
104 | if (rangeRes.StatusCode < HttpStatusCode.Redirect && rangeRes.Headers[HttpResponseHeader.AcceptRanges] == "bytes")
105 | {
106 | return (DwnlSize / CHUNK_SIZE_LIMIT + (DwnlSize % CHUNK_SIZE_LIMIT > 0 ? 1 : 0));
107 | }
108 | else
109 | {
110 | return 1;
111 | }
112 | }
113 | }
114 |
115 | ///
116 | /// finds the download file name from the url
117 | ///
118 | /// the file whose name we want to find
119 | /// the string with the file name
120 | public static string FindFileName(string dwnlSource)
121 | {
122 | //prepare the request headers
123 | HttpWebRequest fileNameReq = WebRequest.CreateHttp(dwnlSource);
124 | fileNameReq.AllowAutoRedirect = true;
125 | fileNameReq.AddRange(0, 10);
126 |
127 | using (HttpWebResponse fileNameRes = (HttpWebResponse)fileNameReq.GetResponse())
128 | {
129 | //get file name data headers
130 | string contentType = fileNameRes.ContentType;
131 | string physicalPath = fileNameRes.ResponseUri.AbsolutePath.Split('/').Last();
132 |
133 | //otherwise use the second part of the content-type header
134 | if (physicalPath.Contains('.'))
135 | {
136 | return physicalPath;
137 | }
138 | else
139 | {
140 | return physicalPath + "." + contentType.Split('/').Last();
141 | }
142 | }
143 | }
144 |
145 | ///
146 | /// finds the download file size from the url
147 | ///
148 | /// the download file size in bytes
149 | private long FindFileSize()
150 | {
151 | //first check if native algorithm works
152 | HttpWebRequest fileSizeReq = WebRequest.CreateHttp(DwnlSource);
153 | fileSizeReq.AllowAutoRedirect = true;
154 |
155 | using (HttpWebResponse fileSizeRes = (HttpWebResponse)fileSizeReq.GetResponse())
156 | {
157 | if (fileSizeRes.StatusCode < HttpStatusCode.Found)
158 | {
159 | return fileSizeRes.ContentLength;
160 | }
161 | else
162 | {
163 | //if problem use the proxy file size server
164 | HttpWebRequest proxyFileSizeReq = WebRequest.CreateHttp(string.Format(FILE_SIZE_SERVER, DwnlSource));
165 | using (HttpWebResponse proxyFileSizeRes = (HttpWebResponse)fileSizeReq.GetResponse())
166 | using (StreamReader fileSizeReader = new StreamReader(proxyFileSizeRes.GetResponseStream()))
167 | return long.Parse(fileSizeReader.ReadLine());
168 | }
169 | }
170 | }
171 |
172 | ///
173 | /// starts the entire process
174 | ///
175 | public void Start()
176 | {
177 | if (State == DownloadState.Idle)
178 | {
179 | State = DownloadState.Start;
180 |
181 | //creates the downloader thread's containers
182 | ChunkDownloaders = new ChunkDownloader[ChunkCount];
183 | for (long i = 0, chunkStart = 0; i < ChunkCount; i++, chunkStart += CHUNK_SIZE_LIMIT)
184 | {
185 | ChunkDownloaders[i] = new ChunkDownloader(
186 | ChunkSource,
187 | String.Format(ChunkTarget, i),
188 | chunkStart,
189 | Math.Min(chunkStart + CHUNK_SIZE_LIMIT - 1, DwnlSize));
190 | }
191 | GC.Collect();
192 |
193 | //to prevent blocking threads used
194 | new Thread(() => { Download(); }).Start();
195 | }
196 | }
197 |
198 | ///
199 | /// starts and maintains the chunk downloader threads
200 | ///
201 | public void Download()
202 | {
203 | if (State == DownloadState.Start)
204 | {
205 | State = DownloadState.Download;
206 |
207 | //start allowed number of chunk downloaders
208 | long nextChunk;
209 | for (nextChunk = 0; nextChunk < Math.Min(ChunkCount, ACTIVE_THREAD_LIMIT); nextChunk++)
210 | {
211 | ChunkDownloaders[nextChunk].Start();
212 | }
213 |
214 | //wait for the threads to complete
215 | //start the successive threads if not aborted
216 | for (int i = 0; i < ChunkCount; i++, nextChunk++)
217 | {
218 | ChunkDownloaders[i].Join();
219 |
220 | if (State == DownloadState.Abort) return;
221 | else if (ChunkDownloaders[i].DwnlException != null)
222 | {
223 | Abort().Join();
224 | DwnlException = ChunkDownloaders[i].DwnlException;
225 | State = DownloadState.Error;
226 | return;
227 | }
228 | else if (nextChunk < ChunkCount)
229 | {
230 | ChunkDownloaders[nextChunk].Start();
231 | }
232 | }
233 |
234 | Append();
235 | }
236 | }
237 |
238 | ///
239 | /// appends the contents of the chunks to the target file
240 | ///
241 | public void Append()
242 | {
243 | State = DownloadState.Append;
244 |
245 | //synchronus copy of chunks to target file
246 | using (BufferedStream TargetFile = new BufferedStream(new FileStream(DwnlTarget, FileMode.Create, FileAccess.Write)))
247 | for (int i = 0; i < ChunkCount; i++)
248 | using (BufferedStream SourceChunks = new BufferedStream(File.OpenRead(String.Format(ChunkTarget, i))))
249 | SourceChunks.CopyTo(TargetFile);
250 |
251 | Complete();
252 | }
253 |
254 | ///
255 | /// actions after download completion
256 | ///
257 | public void Complete()
258 | {
259 | State = DownloadState.Complete;
260 |
261 | //cleanup job 1: delete the chunks
262 | for (int i = 0; i < ChunkCount; i++)
263 | File.Delete(String.Format(ChunkTarget, i));
264 |
265 | //cleanup job 2: delete the chunk directory
266 | Directory.Delete(Path.GetDirectoryName(ChunkTarget));
267 |
268 | State = DownloadState.Finish;
269 | }
270 |
271 | ///
272 | /// aborts the running download
273 | ///
274 | /// returns the abort thread
275 | public Thread Abort()
276 | {
277 | //abort each thread and jump to idle mode
278 | Thread abortThread = new Thread(() =>
279 | {
280 | if (State == DownloadState.Download)
281 | {
282 | State = DownloadState.Abort;
283 |
284 | //abort all the downloads
285 | for (int i = 0; i < ChunkCount; i++)
286 | {
287 | ChunkDownloaders[i].Abort();
288 | }
289 |
290 | State = DownloadState.Idle;
291 | }
292 | });
293 |
294 | //return so that some can wait till abort is complete
295 | abortThread.Start();
296 | return abortThread;
297 | }
298 | }
299 | }
300 |
--------------------------------------------------------------------------------
/Downloader/Downloader.csproj:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 | Debug
6 | AnyCPU
7 | {3B5EE308-E5FF-473E-8A36-8159B0493C56}
8 | Library
9 | Properties
10 | Downloader
11 | Downloader
12 | v4.5.2
13 | 512
14 |
15 |
16 |
17 | true
18 | full
19 | true
20 | bin\Debug\
21 | DEBUG;TRACE
22 | prompt
23 | 4
24 |
25 |
26 | false
27 |
28 |
29 | pdbonly
30 | true
31 | bin\Release\
32 | TRACE
33 | prompt
34 | 4
35 | false
36 |
37 |
38 |
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 |
50 |
51 |
52 |
53 |
54 |
55 |
56 |
57 |
58 |
59 |
60 | True
61 | True
62 | Settings.settings
63 |
64 |
65 |
66 |
67 |
68 | SettingsSingleFileGenerator
69 | Settings.Designer.cs
70 |
71 |
72 |
73 |
80 |
--------------------------------------------------------------------------------
/Downloader/IChunks.cs:
--------------------------------------------------------------------------------
1 | namespace Downloader
2 | {
3 | public interface IChunks
4 | {
5 | long ChunkCount { get; }
6 | long[] ChunkProgress { get; }
7 | long ChunkSize { get; }
8 | string ChunkSource { get; }
9 | string ChunkTargetTemplate { get; }
10 | long TotalSize { get; }
11 |
12 | string ChunkTarget(long id);
13 | void DownloadChunk(long id);
14 | }
15 | }
--------------------------------------------------------------------------------
/Downloader/IDownload.cs:
--------------------------------------------------------------------------------
1 | namespace Downloader
2 | {
3 | public interface IDownload
4 | {
5 | double AppendProgress { get; }
6 | Chunks DwnlChunks { get; }
7 | double DwnlProgress { get; }
8 | DownloadScheduler DwnlScheduler { get; }
9 | long DwnlSize { get; }
10 | double DwnlSizeCompleted { get; }
11 | string DwnlSource { get; }
12 | double DwnlSpeed { get; }
13 | string DwnlTarget { get; set; }
14 |
15 | void UpdateAppendProgress();
16 | void UpdateDownloadProgress(double timeSpan);
17 | }
18 | }
--------------------------------------------------------------------------------
/Downloader/IDownloadEngine.cs:
--------------------------------------------------------------------------------
1 | using System;
2 | using System.Threading;
3 |
4 | namespace Downloader
5 | {
6 | public interface IDownloadEngine
7 | {
8 | Exception Error { get; }
9 | bool IsStateCompleted { get; }
10 | DownloadEngine.DwnlState State { get; }
11 |
12 | Thread Abort();
13 | void Start();
14 | }
15 | }
--------------------------------------------------------------------------------
/Downloader/IDownloadScheduler.cs:
--------------------------------------------------------------------------------
1 | using System;
2 |
3 | namespace Downloader
4 | {
5 | public interface IDownloadScheduler
6 | {
7 | Chunks Chunks { get; }
8 | Exception Error { get; }
9 |
10 | void Abort();
11 | void Start();
12 | }
13 | }
--------------------------------------------------------------------------------
/Downloader/Properties/AssemblyInfo.cs:
--------------------------------------------------------------------------------
1 | using System.Reflection;
2 | using System.Runtime.CompilerServices;
3 | using System.Runtime.InteropServices;
4 |
5 | // General Information about an assembly is controlled through the following
6 | // set of attributes. Change these attribute values to modify the information
7 | // associated with an assembly.
8 | [assembly: AssemblyTitle("Downloader")]
9 | [assembly: AssemblyDescription("")]
10 | [assembly: AssemblyConfiguration("")]
11 | [assembly: AssemblyCompany("")]
12 | [assembly: AssemblyProduct("Downloader")]
13 | [assembly: AssemblyCopyright("Copyright © 2016")]
14 | [assembly: AssemblyTrademark("")]
15 | [assembly: AssemblyCulture("")]
16 |
17 | // Setting ComVisible to false makes the types in this assembly not visible
18 | // to COM components. If you need to access a type in this assembly from
19 | // COM, set the ComVisible attribute to true on that type.
20 | [assembly: ComVisible(false)]
21 |
22 | // The following GUID is for the ID of the typelib if this project is exposed to COM
23 | [assembly: Guid("3b5ee308-e5ff-473e-8a36-8159b0493c56")]
24 |
25 | // Version information for an assembly consists of the following four values:
26 | //
27 | // Major Version
28 | // Minor Version
29 | // Build Number
30 | // Revision
31 | //
32 | // You can specify all the values or you can default the Build and Revision Numbers
33 | // by using the '*' as shown below:
34 | // [assembly: AssemblyVersion("1.0.*")]
35 | [assembly: AssemblyVersion("1.0.0.0")]
36 | [assembly: AssemblyFileVersion("1.0.0.0")]
37 |
--------------------------------------------------------------------------------
/Downloader/Properties/Settings.Designer.cs:
--------------------------------------------------------------------------------
1 | //------------------------------------------------------------------------------
2 | //
3 | // This code was generated by a tool.
4 | // Runtime Version:4.0.30319.42000
5 | //
6 | // Changes to this file may cause incorrect behavior and will be lost if
7 | // the code is regenerated.
8 | //
9 | //------------------------------------------------------------------------------
10 |
11 | namespace Downloader.Properties {
12 |
13 |
14 | [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
15 | [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "14.0.0.0")]
16 | internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
17 |
18 | private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
19 |
20 | public static Settings Default {
21 | get {
22 | return defaultInstance;
23 | }
24 | }
25 | }
26 | }
27 |
--------------------------------------------------------------------------------
/Downloader/Properties/Settings.settings:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
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/Downloader/app.config:
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1 |
2 |
3 |
4 |
5 |
6 |
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/Installer/Download Manager.aip:
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--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | GNU GENERAL PUBLIC LICENSE
2 | Version 3, 29 June 2007
3 |
4 | Copyright (C) 2007 Free Software Foundation, Inc.
5 | Everyone is permitted to copy and distribute verbatim copies
6 | of this license document, but changing it is not allowed.
7 |
8 | Preamble
9 |
10 | The GNU General Public License is a free, copyleft license for
11 | software and other kinds of works.
12 |
13 | The licenses for most software and other practical works are designed
14 | to take away your freedom to share and change the works. By contrast,
15 | the GNU General Public License is intended to guarantee your freedom to
16 | share and change all versions of a program--to make sure it remains free
17 | software for all its users. We, the Free Software Foundation, use the
18 | GNU General Public License for most of our software; it applies also to
19 | any other work released this way by its authors. You can apply it to
20 | your programs, too.
21 |
22 | When we speak of free software, we are referring to freedom, not
23 | price. Our General Public Licenses are designed to make sure that you
24 | have the freedom to distribute copies of free software (and charge for
25 | them if you wish), that you receive source code or can get it if you
26 | want it, that you can change the software or use pieces of it in new
27 | free programs, and that you know you can do these things.
28 |
29 | To protect your rights, we need to prevent others from denying you
30 | these rights or asking you to surrender the rights. Therefore, you have
31 | certain responsibilities if you distribute copies of the software, or if
32 | you modify it: responsibilities to respect the freedom of others.
33 |
34 | For example, if you distribute copies of such a program, whether
35 | gratis or for a fee, you must pass on to the recipients the same
36 | freedoms that you received. You must make sure that they, too, receive
37 | or can get the source code. And you must show them these terms so they
38 | know their rights.
39 |
40 | Developers that use the GNU GPL protect your rights with two steps:
41 | (1) assert copyright on the software, and (2) offer you this License
42 | giving you legal permission to copy, distribute and/or modify it.
43 |
44 | For the developers' and authors' protection, the GPL clearly explains
45 | that there is no warranty for this free software. For both users' and
46 | authors' sake, the GPL requires that modified versions be marked as
47 | changed, so that their problems will not be attributed erroneously to
48 | authors of previous versions.
49 |
50 | Some devices are designed to deny users access to install or run
51 | modified versions of the software inside them, although the manufacturer
52 | can do so. This is fundamentally incompatible with the aim of
53 | protecting users' freedom to change the software. The systematic
54 | pattern of such abuse occurs in the area of products for individuals to
55 | use, which is precisely where it is most unacceptable. Therefore, we
56 | have designed this version of the GPL to prohibit the practice for those
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58 | stand ready to extend this provision to those domains in future versions
59 | of the GPL, as needed to protect the freedom of users.
60 |
61 | Finally, every program is threatened constantly by software patents.
62 | States should not allow patents to restrict development and use of
63 | software on general-purpose computers, but in those that do, we wish to
64 | avoid the special danger that patents applied to a free program could
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66 | patents cannot be used to render the program non-free.
67 |
68 | The precise terms and conditions for copying, distribution and
69 | modification follow.
70 |
71 | TERMS AND CONDITIONS
72 |
73 | 0. Definitions.
74 |
75 | "This License" refers to version 3 of the GNU General Public License.
76 |
77 | "Copyright" also means copyright-like laws that apply to other kinds of
78 | works, such as semiconductor masks.
79 |
80 | "The Program" refers to any copyrightable work licensed under this
81 | License. Each licensee is addressed as "you". "Licensees" and
82 | "recipients" may be individuals or organizations.
83 |
84 | To "modify" a work means to copy from or adapt all or part of the work
85 | in a fashion requiring copyright permission, other than the making of an
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87 | earlier work or a work "based on" the earlier work.
88 |
89 | A "covered work" means either the unmodified Program or a work based
90 | on the Program.
91 |
92 | To "propagate" a work means to do anything with it that, without
93 | permission, would make you directly or secondarily liable for
94 | infringement under applicable copyright law, except executing it on a
95 | computer or modifying a private copy. Propagation includes copying,
96 | distribution (with or without modification), making available to the
97 | public, and in some countries other activities as well.
98 |
99 | To "convey" a work means any kind of propagation that enables other
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102 |
103 | An interactive user interface displays "Appropriate Legal Notices"
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105 | feature that (1) displays an appropriate copyright notice, and (2)
106 | tells the user that there is no warranty for the work (except to the
107 | extent that warranties are provided), that licensees may convey the
108 | work under this License, and how to view a copy of this License. If
109 | the interface presents a list of user commands or options, such as a
110 | menu, a prominent item in the list meets this criterion.
111 |
112 | 1. Source Code.
113 |
114 | The "source code" for a work means the preferred form of the work
115 | for making modifications to it. "Object code" means any non-source
116 | form of a work.
117 |
118 | A "Standard Interface" means an interface that either is an official
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120 | interfaces specified for a particular programming language, one that
121 | is widely used among developers working in that language.
122 |
123 | The "System Libraries" of an executable work include anything, other
124 | than the work as a whole, that (a) is included in the normal form of
125 | packaging a Major Component, but which is not part of that Major
126 | Component, and (b) serves only to enable use of the work with that
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128 | implementation is available to the public in source code form. A
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130 | (kernel, window system, and so on) of the specific operating system
131 | (if any) on which the executable work runs, or a compiler used to
132 | produce the work, or an object code interpreter used to run it.
133 |
134 | The "Corresponding Source" for a work in object code form means all
135 | the source code needed to generate, install, and (for an executable
136 | work) run the object code and to modify the work, including scripts to
137 | control those activities. However, it does not include the work's
138 | System Libraries, or general-purpose tools or generally available free
139 | programs which are used unmodified in performing those activities but
140 | which are not part of the work. For example, Corresponding Source
141 | includes interface definition files associated with source files for
142 | the work, and the source code for shared libraries and dynamically
143 | linked subprograms that the work is specifically designed to require,
144 | such as by intimate data communication or control flow between those
145 | subprograms and other parts of the work.
146 |
147 | The Corresponding Source need not include anything that users
148 | can regenerate automatically from other parts of the Corresponding
149 | Source.
150 |
151 | The Corresponding Source for a work in source code form is that
152 | same work.
153 |
154 | 2. Basic Permissions.
155 |
156 | All rights granted under this License are granted for the term of
157 | copyright on the Program, and are irrevocable provided the stated
158 | conditions are met. This License explicitly affirms your unlimited
159 | permission to run the unmodified Program. The output from running a
160 | covered work is covered by this License only if the output, given its
161 | content, constitutes a covered work. This License acknowledges your
162 | rights of fair use or other equivalent, as provided by copyright law.
163 |
164 | You may make, run and propagate covered works that you do not
165 | convey, without conditions so long as your license otherwise remains
166 | in force. You may convey covered works to others for the sole purpose
167 | of having them make modifications exclusively for you, or provide you
168 | with facilities for running those works, provided that you comply with
169 | the terms of this License in conveying all material for which you do
170 | not control copyright. Those thus making or running the covered works
171 | for you must do so exclusively on your behalf, under your direction
172 | and control, on terms that prohibit them from making any copies of
173 | your copyrighted material outside their relationship with you.
174 |
175 | Conveying under any other circumstances is permitted solely under
176 | the conditions stated below. Sublicensing is not allowed; section 10
177 | makes it unnecessary.
178 |
179 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
180 |
181 | No covered work shall be deemed part of an effective technological
182 | measure under any applicable law fulfilling obligations under article
183 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or
184 | similar laws prohibiting or restricting circumvention of such
185 | measures.
186 |
187 | When you convey a covered work, you waive any legal power to forbid
188 | circumvention of technological measures to the extent such circumvention
189 | is effected by exercising rights under this License with respect to
190 | the covered work, and you disclaim any intention to limit operation or
191 | modification of the work as a means of enforcing, against the work's
192 | users, your or third parties' legal rights to forbid circumvention of
193 | technological measures.
194 |
195 | 4. Conveying Verbatim Copies.
196 |
197 | You may convey verbatim copies of the Program's source code as you
198 | receive it, in any medium, provided that you conspicuously and
199 | appropriately publish on each copy an appropriate copyright notice;
200 | keep intact all notices stating that this License and any
201 | non-permissive terms added in accord with section 7 apply to the code;
202 | keep intact all notices of the absence of any warranty; and give all
203 | recipients a copy of this License along with the Program.
204 |
205 | You may charge any price or no price for each copy that you convey,
206 | and you may offer support or warranty protection for a fee.
207 |
208 | 5. Conveying Modified Source Versions.
209 |
210 | You may convey a work based on the Program, or the modifications to
211 | produce it from the Program, in the form of source code under the
212 | terms of section 4, provided that you also meet all of these conditions:
213 |
214 | a) The work must carry prominent notices stating that you modified
215 | it, and giving a relevant date.
216 |
217 | b) The work must carry prominent notices stating that it is
218 | released under this License and any conditions added under section
219 | 7. This requirement modifies the requirement in section 4 to
220 | "keep intact all notices".
221 |
222 | c) You must license the entire work, as a whole, under this
223 | License to anyone who comes into possession of a copy. This
224 | License will therefore apply, along with any applicable section 7
225 | additional terms, to the whole of the work, and all its parts,
226 | regardless of how they are packaged. This License gives no
227 | permission to license the work in any other way, but it does not
228 | invalidate such permission if you have separately received it.
229 |
230 | d) If the work has interactive user interfaces, each must display
231 | Appropriate Legal Notices; however, if the Program has interactive
232 | interfaces that do not display Appropriate Legal Notices, your
233 | work need not make them do so.
234 |
235 | A compilation of a covered work with other separate and independent
236 | works, which are not by their nature extensions of the covered work,
237 | and which are not combined with it such as to form a larger program,
238 | in or on a volume of a storage or distribution medium, is called an
239 | "aggregate" if the compilation and its resulting copyright are not
240 | used to limit the access or legal rights of the compilation's users
241 | beyond what the individual works permit. Inclusion of a covered work
242 | in an aggregate does not cause this License to apply to the other
243 | parts of the aggregate.
244 |
245 | 6. Conveying Non-Source Forms.
246 |
247 | You may convey a covered work in object code form under the terms
248 | of sections 4 and 5, provided that you also convey the
249 | machine-readable Corresponding Source under the terms of this License,
250 | in one of these ways:
251 |
252 | a) Convey the object code in, or embodied in, a physical product
253 | (including a physical distribution medium), accompanied by the
254 | Corresponding Source fixed on a durable physical medium
255 | customarily used for software interchange.
256 |
257 | b) Convey the object code in, or embodied in, a physical product
258 | (including a physical distribution medium), accompanied by a
259 | written offer, valid for at least three years and valid for as
260 | long as you offer spare parts or customer support for that product
261 | model, to give anyone who possesses the object code either (1) a
262 | copy of the Corresponding Source for all the software in the
263 | product that is covered by this License, on a durable physical
264 | medium customarily used for software interchange, for a price no
265 | more than your reasonable cost of physically performing this
266 | conveying of source, or (2) access to copy the
267 | Corresponding Source from a network server at no charge.
268 |
269 | c) Convey individual copies of the object code with a copy of the
270 | written offer to provide the Corresponding Source. This
271 | alternative is allowed only occasionally and noncommercially, and
272 | only if you received the object code with such an offer, in accord
273 | with subsection 6b.
274 |
275 | d) Convey the object code by offering access from a designated
276 | place (gratis or for a charge), and offer equivalent access to the
277 | Corresponding Source in the same way through the same place at no
278 | further charge. You need not require recipients to copy the
279 | Corresponding Source along with the object code. If the place to
280 | copy the object code is a network server, the Corresponding Source
281 | may be on a different server (operated by you or a third party)
282 | that supports equivalent copying facilities, provided you maintain
283 | clear directions next to the object code saying where to find the
284 | Corresponding Source. Regardless of what server hosts the
285 | Corresponding Source, you remain obligated to ensure that it is
286 | available for as long as needed to satisfy these requirements.
287 |
288 | e) Convey the object code using peer-to-peer transmission, provided
289 | you inform other peers where the object code and Corresponding
290 | Source of the work are being offered to the general public at no
291 | charge under subsection 6d.
292 |
293 | A separable portion of the object code, whose source code is excluded
294 | from the Corresponding Source as a System Library, need not be
295 | included in conveying the object code work.
296 |
297 | A "User Product" is either (1) a "consumer product", which means any
298 | tangible personal property which is normally used for personal, family,
299 | or household purposes, or (2) anything designed or sold for incorporation
300 | into a dwelling. In determining whether a product is a consumer product,
301 | doubtful cases shall be resolved in favor of coverage. For a particular
302 | product received by a particular user, "normally used" refers to a
303 | typical or common use of that class of product, regardless of the status
304 | of the particular user or of the way in which the particular user
305 | actually uses, or expects or is expected to use, the product. A product
306 | is a consumer product regardless of whether the product has substantial
307 | commercial, industrial or non-consumer uses, unless such uses represent
308 | the only significant mode of use of the product.
309 |
310 | "Installation Information" for a User Product means any methods,
311 | procedures, authorization keys, or other information required to install
312 | and execute modified versions of a covered work in that User Product from
313 | a modified version of its Corresponding Source. The information must
314 | suffice to ensure that the continued functioning of the modified object
315 | code is in no case prevented or interfered with solely because
316 | modification has been made.
317 |
318 | If you convey an object code work under this section in, or with, or
319 | specifically for use in, a User Product, and the conveying occurs as
320 | part of a transaction in which the right of possession and use of the
321 | User Product is transferred to the recipient in perpetuity or for a
322 | fixed term (regardless of how the transaction is characterized), the
323 | Corresponding Source conveyed under this section must be accompanied
324 | by the Installation Information. But this requirement does not apply
325 | if neither you nor any third party retains the ability to install
326 | modified object code on the User Product (for example, the work has
327 | been installed in ROM).
328 |
329 | The requirement to provide Installation Information does not include a
330 | requirement to continue to provide support service, warranty, or updates
331 | for a work that has been modified or installed by the recipient, or for
332 | the User Product in which it has been modified or installed. Access to a
333 | network may be denied when the modification itself materially and
334 | adversely affects the operation of the network or violates the rules and
335 | protocols for communication across the network.
336 |
337 | Corresponding Source conveyed, and Installation Information provided,
338 | in accord with this section must be in a format that is publicly
339 | documented (and with an implementation available to the public in
340 | source code form), and must require no special password or key for
341 | unpacking, reading or copying.
342 |
343 | 7. Additional Terms.
344 |
345 | "Additional permissions" are terms that supplement the terms of this
346 | License by making exceptions from one or more of its conditions.
347 | Additional permissions that are applicable to the entire Program shall
348 | be treated as though they were included in this License, to the extent
349 | that they are valid under applicable law. If additional permissions
350 | apply only to part of the Program, that part may be used separately
351 | under those permissions, but the entire Program remains governed by
352 | this License without regard to the additional permissions.
353 |
354 | When you convey a copy of a covered work, you may at your option
355 | remove any additional permissions from that copy, or from any part of
356 | it. (Additional permissions may be written to require their own
357 | removal in certain cases when you modify the work.) You may place
358 | additional permissions on material, added by you to a covered work,
359 | for which you have or can give appropriate copyright permission.
360 |
361 | Notwithstanding any other provision of this License, for material you
362 | add to a covered work, you may (if authorized by the copyright holders of
363 | that material) supplement the terms of this License with terms:
364 |
365 | a) Disclaiming warranty or limiting liability differently from the
366 | terms of sections 15 and 16 of this License; or
367 |
368 | b) Requiring preservation of specified reasonable legal notices or
369 | author attributions in that material or in the Appropriate Legal
370 | Notices displayed by works containing it; or
371 |
372 | c) Prohibiting misrepresentation of the origin of that material, or
373 | requiring that modified versions of such material be marked in
374 | reasonable ways as different from the original version; or
375 |
376 | d) Limiting the use for publicity purposes of names of licensors or
377 | authors of the material; or
378 |
379 | e) Declining to grant rights under trademark law for use of some
380 | trade names, trademarks, or service marks; or
381 |
382 | f) Requiring indemnification of licensors and authors of that
383 | material by anyone who conveys the material (or modified versions of
384 | it) with contractual assumptions of liability to the recipient, for
385 | any liability that these contractual assumptions directly impose on
386 | those licensors and authors.
387 |
388 | All other non-permissive additional terms are considered "further
389 | restrictions" within the meaning of section 10. If the Program as you
390 | received it, or any part of it, contains a notice stating that it is
391 | governed by this License along with a term that is a further
392 | restriction, you may remove that term. If a license document contains
393 | a further restriction but permits relicensing or conveying under this
394 | License, you may add to a covered work material governed by the terms
395 | of that license document, provided that the further restriction does
396 | not survive such relicensing or conveying.
397 |
398 | If you add terms to a covered work in accord with this section, you
399 | must place, in the relevant source files, a statement of the
400 | additional terms that apply to those files, or a notice indicating
401 | where to find the applicable terms.
402 |
403 | Additional terms, permissive or non-permissive, may be stated in the
404 | form of a separately written license, or stated as exceptions;
405 | the above requirements apply either way.
406 |
407 | 8. Termination.
408 |
409 | You may not propagate or modify a covered work except as expressly
410 | provided under this License. Any attempt otherwise to propagate or
411 | modify it is void, and will automatically terminate your rights under
412 | this License (including any patent licenses granted under the third
413 | paragraph of section 11).
414 |
415 | However, if you cease all violation of this License, then your
416 | license from a particular copyright holder is reinstated (a)
417 | provisionally, unless and until the copyright holder explicitly and
418 | finally terminates your license, and (b) permanently, if the copyright
419 | holder fails to notify you of the violation by some reasonable means
420 | prior to 60 days after the cessation.
421 |
422 | Moreover, your license from a particular copyright holder is
423 | reinstated permanently if the copyright holder notifies you of the
424 | violation by some reasonable means, this is the first time you have
425 | received notice of violation of this License (for any work) from that
426 | copyright holder, and you cure the violation prior to 30 days after
427 | your receipt of the notice.
428 |
429 | Termination of your rights under this section does not terminate the
430 | licenses of parties who have received copies or rights from you under
431 | this License. If your rights have been terminated and not permanently
432 | reinstated, you do not qualify to receive new licenses for the same
433 | material under section 10.
434 |
435 | 9. Acceptance Not Required for Having Copies.
436 |
437 | You are not required to accept this License in order to receive or
438 | run a copy of the Program. Ancillary propagation of a covered work
439 | occurring solely as a consequence of using peer-to-peer transmission
440 | to receive a copy likewise does not require acceptance. However,
441 | nothing other than this License grants you permission to propagate or
442 | modify any covered work. These actions infringe copyright if you do
443 | not accept this License. Therefore, by modifying or propagating a
444 | covered work, you indicate your acceptance of this License to do so.
445 |
446 | 10. Automatic Licensing of Downstream Recipients.
447 |
448 | Each time you convey a covered work, the recipient automatically
449 | receives a license from the original licensors, to run, modify and
450 | propagate that work, subject to this License. You are not responsible
451 | for enforcing compliance by third parties with this License.
452 |
453 | An "entity transaction" is a transaction transferring control of an
454 | organization, or substantially all assets of one, or subdividing an
455 | organization, or merging organizations. If propagation of a covered
456 | work results from an entity transaction, each party to that
457 | transaction who receives a copy of the work also receives whatever
458 | licenses to the work the party's predecessor in interest had or could
459 | give under the previous paragraph, plus a right to possession of the
460 | Corresponding Source of the work from the predecessor in interest, if
461 | the predecessor has it or can get it with reasonable efforts.
462 |
463 | You may not impose any further restrictions on the exercise of the
464 | rights granted or affirmed under this License. For example, you may
465 | not impose a license fee, royalty, or other charge for exercise of
466 | rights granted under this License, and you may not initiate litigation
467 | (including a cross-claim or counterclaim in a lawsuit) alleging that
468 | any patent claim is infringed by making, using, selling, offering for
469 | sale, or importing the Program or any portion of it.
470 |
471 | 11. Patents.
472 |
473 | A "contributor" is a copyright holder who authorizes use under this
474 | License of the Program or a work on which the Program is based. The
475 | work thus licensed is called the contributor's "contributor version".
476 |
477 | A contributor's "essential patent claims" are all patent claims
478 | owned or controlled by the contributor, whether already acquired or
479 | hereafter acquired, that would be infringed by some manner, permitted
480 | by this License, of making, using, or selling its contributor version,
481 | but do not include claims that would be infringed only as a
482 | consequence of further modification of the contributor version. For
483 | purposes of this definition, "control" includes the right to grant
484 | patent sublicenses in a manner consistent with the requirements of
485 | this License.
486 |
487 | Each contributor grants you a non-exclusive, worldwide, royalty-free
488 | patent license under the contributor's essential patent claims, to
489 | make, use, sell, offer for sale, import and otherwise run, modify and
490 | propagate the contents of its contributor version.
491 |
492 | In the following three paragraphs, a "patent license" is any express
493 | agreement or commitment, however denominated, not to enforce a patent
494 | (such as an express permission to practice a patent or covenant not to
495 | sue for patent infringement). To "grant" such a patent license to a
496 | party means to make such an agreement or commitment not to enforce a
497 | patent against the party.
498 |
499 | If you convey a covered work, knowingly relying on a patent license,
500 | and the Corresponding Source of the work is not available for anyone
501 | to copy, free of charge and under the terms of this License, through a
502 | publicly available network server or other readily accessible means,
503 | then you must either (1) cause the Corresponding Source to be so
504 | available, or (2) arrange to deprive yourself of the benefit of the
505 | patent license for this particular work, or (3) arrange, in a manner
506 | consistent with the requirements of this License, to extend the patent
507 | license to downstream recipients. "Knowingly relying" means you have
508 | actual knowledge that, but for the patent license, your conveying the
509 | covered work in a country, or your recipient's use of the covered work
510 | in a country, would infringe one or more identifiable patents in that
511 | country that you have reason to believe are valid.
512 |
513 | If, pursuant to or in connection with a single transaction or
514 | arrangement, you convey, or propagate by procuring conveyance of, a
515 | covered work, and grant a patent license to some of the parties
516 | receiving the covered work authorizing them to use, propagate, modify
517 | or convey a specific copy of the covered work, then the patent license
518 | you grant is automatically extended to all recipients of the covered
519 | work and works based on it.
520 |
521 | A patent license is "discriminatory" if it does not include within
522 | the scope of its coverage, prohibits the exercise of, or is
523 | conditioned on the non-exercise of one or more of the rights that are
524 | specifically granted under this License. You may not convey a covered
525 | work if you are a party to an arrangement with a third party that is
526 | in the business of distributing software, under which you make payment
527 | to the third party based on the extent of your activity of conveying
528 | the work, and under which the third party grants, to any of the
529 | parties who would receive the covered work from you, a discriminatory
530 | patent license (a) in connection with copies of the covered work
531 | conveyed by you (or copies made from those copies), or (b) primarily
532 | for and in connection with specific products or compilations that
533 | contain the covered work, unless you entered into that arrangement,
534 | or that patent license was granted, prior to 28 March 2007.
535 |
536 | Nothing in this License shall be construed as excluding or limiting
537 | any implied license or other defenses to infringement that may
538 | otherwise be available to you under applicable patent law.
539 |
540 | 12. No Surrender of Others' Freedom.
541 |
542 | If conditions are imposed on you (whether by court order, agreement or
543 | otherwise) that contradict the conditions of this License, they do not
544 | excuse you from the conditions of this License. If you cannot convey a
545 | covered work so as to satisfy simultaneously your obligations under this
546 | License and any other pertinent obligations, then as a consequence you may
547 | not convey it at all. For example, if you agree to terms that obligate you
548 | to collect a royalty for further conveying from those to whom you convey
549 | the Program, the only way you could satisfy both those terms and this
550 | License would be to refrain entirely from conveying the Program.
551 |
552 | 13. Use with the GNU Affero General Public License.
553 |
554 | Notwithstanding any other provision of this License, you have
555 | permission to link or combine any covered work with a work licensed
556 | under version 3 of the GNU Affero General Public License into a single
557 | combined work, and to convey the resulting work. The terms of this
558 | License will continue to apply to the part which is the covered work,
559 | but the special requirements of the GNU Affero General Public License,
560 | section 13, concerning interaction through a network will apply to the
561 | combination as such.
562 |
563 | 14. Revised Versions of this License.
564 |
565 | The Free Software Foundation may publish revised and/or new versions of
566 | the GNU General Public License from time to time. Such new versions will
567 | be similar in spirit to the present version, but may differ in detail to
568 | address new problems or concerns.
569 |
570 | Each version is given a distinguishing version number. If the
571 | Program specifies that a certain numbered version of the GNU General
572 | Public License "or any later version" applies to it, you have the
573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation. If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 |
579 | If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 |
584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 |
600 | 16. Limitation of Liability.
601 |
602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 |
634 | {one line to give the program's name and a brief idea of what it does.}
635 | Copyright (C) {year} {name of author}
636 |
637 | This program is free software: you can redistribute it and/or modify
638 | it under the terms of the GNU General Public License as published by
639 | the Free Software Foundation, either version 3 of the License, or
640 | (at your option) any later version.
641 |
642 | This program is distributed in the hope that it will be useful,
643 | but WITHOUT ANY WARRANTY; without even the implied warranty of
644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
645 | GNU General Public License for more details.
646 |
647 | You should have received a copy of the GNU General Public License
648 | along with this program. If not, see .
649 |
650 | Also add information on how to contact you by electronic and paper mail.
651 |
652 | If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 |
655 | {project} Copyright (C) {year} {fullname}
656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 | This is free software, and you are welcome to redistribute it
658 | under certain conditions; type `show c' for details.
659 |
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License. Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 |
664 | You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | .
668 |
669 | The GNU General Public License does not permit incorporating your program
670 | into proprietary programs. If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library. If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License. But first, please read
674 | .
675 |
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1 | root = true
2 |
3 | #Use 4-sized tabs for indentation
4 | [*]
5 | charset = utf-8
6 | indent_style = tab
7 | indent_size = 4
8 | trim_trailing_whitespace = true
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/Proxy File Size Server/.playground:
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1 | {
2 | "project_name": "Proxy File Size Server",
3 | "project_description": "A Proxy server to get the content-length of a url for my downloader",
4 | "show_files": [
5 | "app.yaml"
6 | ]
7 | }
8 |
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/Proxy File Size Server/README.md:
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1 | # Proxy File Size Server
2 |
3 | Why I need this server for my downloader?
4 |
5 | - My college proxy server reads the headers for all requests and blocks requests with Content-Length over 50MB
6 |
- Inorder to fool it I am using a proxy file size server which returns the Content-Length
7 |
- Now, if the request is byte addressed then i can use range header to download the file in parts
8 |
- So, technically I am not violating the restriction but cirumventing it.
9 |
- Now I can download big files without any restrictions
10 |
11 |
12 |
13 |
14 | from server hosted in hostinger
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/Proxy File Size Server/app.yaml:
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1 | runtime: php55
2 | api_version: 1
3 |
4 | handlers:
5 | - url: /.*
6 | script: index.php
7 |
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/Proxy File Size Server/index.php:
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1 | query($query);
25 | }
26 | ?>
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/README.md:
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1 | # Download Manager
2 |
3 |
4 |
5 | Features
6 |
7 | - Multithreaded optimisations
8 |
- Pause and resume the downloads
9 |
- Increased overall throughput compared to Chrome, edge etc,.
10 |
- Threaded, state controlled architecture
11 |
- Highly independant modules
12 |
- Standalone portable downloader
13 |
14 |
15 | Uses
16 |
17 | - Use as an alternative downloader.
18 |
- Use the well documented Downloader library in your projects.
19 |
20 |
21 | Note
22 |
23 | - Currently under development, so might be a little buggy and more features will be added as I get more time.
24 |
25 |
26 | ### Featured in:
27 |
28 | - https://listoffreeware.com/free-open-source-download-manager-software-windows/
29 |
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