├── .gitignore ├── screenshot.png ├── .travis.yml ├── psd3.min.css ├── status.css ├── README.md ├── status.html ├── psd3.min.js ├── updatedata.js ├── watcher.cpp └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | watcher 2 | test.json 3 | nginx.log 4 | -------------------------------------------------------------------------------- /screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sjtug/nginx-simple-watcher/master/screenshot.png -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: cpp 2 | before_install: 3 | - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y 4 | - sudo apt-get -qq update 5 | - sudo apt-get install gcc-5 g++-5 -y 6 | - export CXX="g++-5" CC="gcc-5" 7 | script: 8 | - $CXX -std=c++14 -Wall -Wextra -Werror -O2 watcher.cpp -o watcher -pthread 9 | -------------------------------------------------------------------------------- /psd3.min.css: -------------------------------------------------------------------------------- 1 | .psd3Tooltip,text{pointer-events:none}.psd3Tooltip p,text{font-family:sans-serif}text{font-size:12px}g.arc path:hover{fill:orange}.psd3Tooltip{position:absolute;max-width:150px;height:auto;padding:10px;background-color:#fff;-webkit-border-radius:10px;-moz-border-radius:10px;border-radius:10px;-webkit-box-shadow:4px 4px 10px rgba(0,0,0,.4);-moz-box-shadow:4px 4px 10px rgba(0,0,0,.4);box-shadow:4px 4px 10px rgba(0,0,0,.4)}.psd3Hidden{display:none}.psd3Tooltip p{margin:0;font-size:16px;line-height:20px} -------------------------------------------------------------------------------- /status.css: -------------------------------------------------------------------------------- 1 | ul.pure-menu-list>li 2 | { 3 | display: inline-block; 4 | vertical-align: middle; 5 | padding: 0; 6 | margin: 0; 7 | height: 100%; 8 | position: relative; 9 | } 10 | 11 | ul.pure-menu-list>li:hover 12 | { 13 | background-color: #ddd; 14 | } 15 | 16 | ul.pure-menu-list>li>a 17 | { 18 | color: #777; 19 | white-space: nowrap; 20 | display: block; 21 | text-decoration: none; 22 | padding: .5em 1em; 23 | } 24 | 25 | table 26 | { 27 | text-align: center; 28 | } 29 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | #Nginx-Simple-Watcher ![test status](https://travis-ci.org/sjtug/nginx-simple-watcher.svg) 2 | 3 | A zero-extra-dependency C++14 nginx server watcher providing CPU usage, mem usage, latest nginx logs and hottest directories, all in JSON format. 4 | 5 | A simple static web frontend is also provided. 6 | 7 | *Linux3.2+ only.* 8 | ## Compile 9 | Use any compiler that has support for C++14. 10 | 11 | ``` 12 | g++ -std=c++14 -O2 watcher.cpp -o watcher -pthread 13 | ``` 14 | 15 | ## Usage 16 | ``` 17 | ./watcher nginx_access_log_path sleep_second serve_content_root output_json_path 18 | ``` 19 | 20 | Then copy `status.html`, `updatedata.js`, `status.css`, `psd3.min.css`, `psd3.min.js` to the same directory as the json's. 21 | 22 | ## Screenshot 23 | 24 | ![Screenshot](https://github.com/htfy96/nginx-simple-watcher/raw/master/screenshot.png) 25 | 26 | ## Output Format 27 | ```json 28 | { 29 | "cpu": 30 | [ 31 | ["time_1", 10.1], 32 | ["time_2", 29] 33 | ], 34 | "mem": 35 | { 36 | "realUsed": 37 | [ 38 | ["time_1", 1234], 39 | ["time_2", 1300] 40 | ], 41 | "used": 42 | [ 43 | ["time_1", 2300], 44 | ["time_2", 2400] 45 | ] 46 | }, 47 | "nginx": 48 | { 49 | "data": 50 | [ 51 | { 52 | "path": "/test/", 53 | "method": "GET", 54 | "status": 200, 55 | "time": "time_1" 56 | } 57 | ] 58 | }, 59 | "hotDir": 60 | [ 61 | { 62 | "count": 22, 63 | "name": "/", 64 | "drilldown": 65 | [ 66 | { 67 | "count": 11, 68 | "name": "archlinux/", 69 | "drilldown": [] 70 | } 71 | ] 72 | } 73 | ] 74 | } 75 | ``` 76 | 77 | Modify `NginxLogEntryParser` to meet your nginx access log format! 78 | 79 | ## License 80 | This project is under GPLv3 license, see `LICENSE` for details. 81 | 82 | `json.hpp` is from https://github.com/nlohmann/json, which is licensed under the MIT license. 83 | 84 | `psd3.min.css` and `psd3.min.js` are from https://github.com/pshivale/psd3, which is also licensed under MIT license. 85 | 86 | > This program is free software: you can redistribute it and/or modify 87 | it under the terms of the GNU General Public License as published by 88 | the Free Software Foundation, either version 3 of the License, or 89 | (at your option) any later version. 90 | 91 | > This program is distributed in the hope that it will be useful, 92 | but WITHOUT ANY WARRANTY; without even the implied warranty of 93 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 94 | GNU General Public License for more details. 95 | 96 | > You should have received a copy of the GNU General Public License 97 | along with this program. If not, see . 98 | -------------------------------------------------------------------------------- /status.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Server Status 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
14 |

Server Status

15 |

16 | Last update: 17 | 18 |

19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 | Disk space:
31 | GiB used.
32 | GiB available. 33 |
34 | 35 |
36 |
37 |
38 |
39 | 40 |
41 |

Nginx recent log

42 |
43 | 44 | 47 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 |
60 | 61 | 62 |
63 |
    64 |
  • 65 |
66 |
67 |
68 |
69 |
70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | -------------------------------------------------------------------------------- /psd3.min.js: -------------------------------------------------------------------------------- 1 | var psd3=psd3||{};psd3.Graph=function(i){var t=this;this.config=i,this.defaults={width:400,height:400,value:"value",inner:"inner",label:function(i){return i.data.value},tooltip:function(i){return void 0!==t.config.value?i[t.config.value]:i.value},transition:"linear",transitionDuration:1e3,donutRadius:0,gradient:!1,colors:d3.scale.category20(),labelColor:"black",drilldownTransition:"linear",drilldownTransitionDuration:0,stroke:"white",strokeWidth:2,highlightColor:"orange"};for(var n in this.defaults)this.defaults.hasOwnProperty(n)&&(i.hasOwnProperty(n)||(i[n]=this.defaults[n]))}; 2 | var psd3=psd3||{};psd3.Pie=function(t){psd3.Graph.call(this,t),this.zoomStack=[];var i="top";void 0!==this.config.heading&&void 0!==this.config.heading.pos&&(i=this.config.heading.pos),"top"==i&&this.setHeading(),this.drawPie(t.data),"bottom"==i&&this.setHeading()},psd3.Pie.prototype=Object.create(psd3.Graph.prototype),psd3.Pie.prototype.constructor=psd3.Pie,psd3.Pie.prototype.findMaxDepth=function(t){if(null===t||void 0===t||t.length<1)return 0;for(var i,e=0,n=0;ne&&(e=o)}return i=1+e},psd3.Pie.prototype.setHeading=function(){void 0!==this.config.heading&&d3.select("#"+this.config.containerId).append("div").style("text-align","center").style("width",""+this.config.width+"px").style("padding-top","20px").style("padding-bottom","20px").append("strong").text(this.config.heading.text)},psd3.Pie.prototype.mouseover=function(t){d3.select("#"+_this.tooltipId).style("left",d3.event.clientX+window.scrollX+"px").style("top",d3.event.clientY+window.scrollY+"px").select("#value").html(_this.config.tooltip(t.data,_this.config.label)),d3.select("#"+_this.tooltipId).classed("psd3Hidden",!1),d3.select(t.path).style("fill",_this.config.highlightColor)},psd3.Pie.prototype.mouseout=function(t){d3.select("#"+_this.tooltipId).classed("psd3Hidden",!0),d3.select(t.path).style("fill",t.fill)},psd3.Pie.prototype.drawPie=function(t){if(!(null===t||void 0===t||t.length<1)){_this=this,_this.arcIndex=0;var i=d3.select("#"+_this.config.containerId).append("svg").attr("id",_this.config.containerId+"_svg").attr("width",_this.config.width).attr("height",_this.config.height);_this.tooltipId=_this.config.containerId+"_tooltip";var e=d3.select("#"+_this.config.containerId).append("div").attr("id",_this.tooltipId).attr("class","psd3Hidden psd3Tooltip");e.append("p").append("span").attr("id","value").text("100%");var n;n=_this.config.width>_this.config.height?_this.config.width/2:_this.config.height/2;var o=_this.config.donutRadius,s=_this.findMaxDepth(t),a=o+(n-o)/s,r=a-o;_this.draw(i,n,t,t,t.length,o,a,r,0,7920/7/180,[0,0])}},psd3.Pie.prototype.customArcTween=function(t){var i={startAngle:t.startAngle,endAngle:t.startAngle},e=d3.interpolate(i,t);return function(i){return t.arc(e(i))}},psd3.Pie.prototype.textTransform=function(t){return"translate("+t.arc.centroid(t)+")"},psd3.Pie.prototype.textTitle=function(t){return t.data[_this.config.value]},psd3.Pie.prototype.draw=function(t,i,e,n,o,s,a,r,d,h,c){if(_this=this,!(null===e||void 0===e||e.length<1)){psd3.Pie.prototype.textText=function(t){return _this.config.label(t)};var l=d3.layout.pie();l.sort(null),l.value(function(t){return t[_this.config.value]}),l.startAngle(d).endAngle(h);for(var p=[],g=0;g 2 | #include 3 | #include 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | #include 13 | #include 14 | #include 15 | #include 16 | #include 17 | #include 18 | #include 19 | #include 20 | #include 21 | #include 22 | #include 23 | #include "json.hpp" 24 | 25 | namespace Infos 26 | { 27 | class MemInfoGetter 28 | { 29 | private: 30 | struct sysinfo memInfo; 31 | unsigned long long getTot() 32 | { 33 | sysinfo(&memInfo); 34 | return (memInfo.totalram) * memInfo.mem_unit; 35 | } 36 | 37 | unsigned long long getUsed() 38 | { 39 | sysinfo(&memInfo); 40 | return 41 | (memInfo.totalram - memInfo.freeram - memInfo.bufferram) * memInfo.mem_unit; 42 | } 43 | 44 | unsigned long long getRealUsed() 45 | { 46 | std::ifstream is("/proc/meminfo"); 47 | unsigned long long res = getUsed(); 48 | while (!is.eof()) 49 | { 50 | std::string fieldname; 51 | is >> fieldname; 52 | if (fieldname == "Cached:") 53 | { 54 | unsigned long long tmp; 55 | is >> tmp; 56 | return res - tmp*1024; 57 | } 58 | } 59 | return -1; 60 | } 61 | 62 | double getLoad() 63 | { 64 | sysinfo(&memInfo); 65 | return memInfo.loads[0]; 66 | } 67 | 68 | public: 69 | struct MemInfo 70 | { 71 | unsigned long long tot, used, realUsed; 72 | double load; 73 | }; 74 | MemInfo getMemInfo() 75 | { 76 | return MemInfo { getTot(), getUsed(), getRealUsed(), getLoad() }; 77 | } 78 | }; 79 | 80 | class CPUInfoGetter 81 | { 82 | private: 83 | unsigned long long lastTotalUser, lastTotalUserLow, lastTotalSys, lastTotalIdle; 84 | 85 | public: 86 | CPUInfoGetter(){ 87 | std::ifstream is("/proc/stat"); 88 | std::string dummy_cpu; 89 | is >> dummy_cpu; 90 | is >> lastTotalUser >> lastTotalUserLow >> lastTotalSys >> lastTotalIdle; 91 | } 92 | 93 | double getCurrentValue(){ 94 | double percent; 95 | unsigned long long totalUser, totalUserLow, totalSys, totalIdle, total; 96 | using namespace std::chrono; 97 | std::this_thread::sleep_for(500ms); 98 | std::string dummy_cpu; 99 | std::ifstream is("/proc/stat"); 100 | is >> dummy_cpu; 101 | is >> totalUser >> totalUserLow >> totalSys >> totalIdle; 102 | 103 | if (totalUser < lastTotalUser || totalUserLow < lastTotalUserLow || 104 | totalSys < lastTotalSys || totalIdle < lastTotalIdle){ 105 | percent = -1.0; 106 | } 107 | else{ 108 | total = (totalUser - lastTotalUser) + (totalUserLow - lastTotalUserLow) + 109 | (totalSys - lastTotalSys); 110 | percent = total; 111 | total += (totalIdle - lastTotalIdle); 112 | percent /= total; 113 | percent *= 100; 114 | } 115 | 116 | 117 | lastTotalUser = totalUser; 118 | lastTotalUserLow = totalUserLow; 119 | lastTotalSys = totalSys; 120 | lastTotalIdle = totalIdle; 121 | return percent; 122 | } 123 | }; 124 | 125 | struct DiskSpaceInfo 126 | { 127 | // sizes are in bytes. Caution that total != used + avail 128 | std::size_t total, used, avail; 129 | }; 130 | 131 | class DiskSpaceGetter 132 | { 133 | private: 134 | std::string _path; 135 | 136 | public: 137 | explicit DiskSpaceGetter(const std::string &path): 138 | _path(path) 139 | { 140 | } 141 | 142 | DiskSpaceInfo getDiskSpace() 143 | { 144 | struct statvfs stat; // c struct in posix 145 | DiskSpaceInfo result; 146 | int statres = statvfs(_path.c_str(), &stat); 147 | if (statres == -1) 148 | return {}; 149 | result.total = stat.f_frsize * stat.f_blocks; 150 | result.used = result.total - stat.f_bsize * stat.f_bfree; 151 | result.avail = stat.f_bsize * stat.f_bavail; 152 | return result; 153 | } 154 | }; 155 | 156 | class NginxLogInfo 157 | { 158 | private: 159 | const std::string filename; 160 | std::ifstream fs; 161 | public: 162 | explicit NginxLogInfo(const std::string &s): 163 | filename(s), fs(s) 164 | { 165 | } 166 | 167 | std::vector getIncrLines() 168 | { 169 | fs.sync(); 170 | fs.clear(); 171 | std::string buffer; 172 | std::vector v; 173 | while (!fs.eof()) 174 | { 175 | std::getline(fs, buffer); 176 | if (buffer.length()>1) 177 | v.push_back(buffer); 178 | } 179 | return v; 180 | } 181 | 182 | }; 183 | 184 | } 185 | 186 | struct NginxLogEntry 187 | { 188 | typedef std::chrono::system_clock::time_point ClockT; 189 | ClockT time_point; 190 | std::string path; 191 | int status; 192 | std::string type; 193 | }; 194 | 195 | 196 | class NginxLogEntryParser 197 | { 198 | static const std::regex 199 | rx ; 200 | public: 201 | NginxLogEntry parse(const std::string& s) 202 | { 203 | std::smatch m; 204 | NginxLogEntry e; 205 | if (std::regex_search(s, m, rx)) 206 | { 207 | e.status = std::atoi(m.format("$5").c_str()); // 200 208 | e.type = m.format("$2"); //POST 209 | e.path = m.format("$3"); 210 | std::tm t = {}; 211 | 212 | std::stringstream ss(m.format("$1")); 213 | ss >> std::get_time( 214 | &t, 215 | "%d/%b/%Y:%H:%M:%S"); 216 | 217 | std::time_t tt = std::mktime(&t); 218 | e.time_point = std::chrono::system_clock::from_time_t(tt); 219 | return e; 220 | 221 | 222 | } else 223 | std::cout << "Not found!" << std::endl; 224 | return NginxLogEntry(); 225 | } 226 | }; 227 | 228 | const std::regex NginxLogEntryParser::rx { R"regex(\[(.*)\] "(\S+) (\S+) (\S+)" ([0-9]+))regex" }; 229 | 230 | 231 | class Status 232 | { 233 | private: 234 | typedef std::chrono::system_clock::time_point ClockT; 235 | //! Change the maximum entries here! 236 | //! The actual size varies between MAXITEM/2 and MAXITEM 237 | const std::size_t MAXITEM = 30000; 238 | template 239 | bool clearExceededItems(T &m) 240 | { 241 | if (m.size() > MAXITEM) 242 | { 243 | while (m.size() > MAXITEM / 2) 244 | m.erase(m.begin()); 245 | return true; 246 | } 247 | return false; 248 | } 249 | 250 | public: 251 | 252 | std::map cpuPecents; 253 | std::map memInfos; 254 | std::map nginxInfos; 255 | 256 | std::map nginxDirInfo; 257 | 258 | Infos::DiskSpaceInfo diskSpace; 259 | 260 | void updateDirInfoFromItem(const NginxLogEntry &e) 261 | { 262 | if (e.path[0]=='/' && (e.status == 200 || e.status == 304)) 263 | for (size_t i=0; i > v; 355 | for (const auto & item:sta.nginxDirInfo) 356 | v.push_back(item); 357 | sort(v.begin(), v.end(), [](const auto& v1, const auto& v2) 358 | { 359 | if (v1.second != v2.second) return v1.second > v2.second; 360 | else return v1.first.length() < v2.first.length(); 361 | }); 362 | 363 | j["hotDir"] = json::array({}); 364 | for (const auto &item : v) 365 | { 366 | json *cur = &j["hotDir"]; 367 | int laststart = -1; 368 | for (size_t i=0; ibegin(), 375 | cur->end(), 376 | [&](const json& ch) 377 | { 378 | return ch["name"] == item.first.substr(laststart+1, i-laststart); 379 | }); 380 | assert(it != cur->end()); 381 | cur = &((*it)["drilldown"]); 382 | laststart = i; 383 | } 384 | } 385 | else 386 | { 387 | std::string name = item.first.substr(laststart + 1); 388 | if (*name.rbegin() != '/') name += "/"; 389 | cur->push_back(json({{"name", item.first.substr(laststart+1)}, {"count", item.second}, 390 | {"drilldown", json::array({})} 391 | })); 392 | } 393 | } 394 | } 395 | 396 | j["diskSpace"] = { 397 | { "total", sta.diskSpace.total }, 398 | { "used", sta.diskSpace.used }, 399 | { "available", sta.diskSpace.avail }, 400 | }; 401 | 402 | of << j.dump(4); 403 | } 404 | 405 | inline std::string currentTime() 406 | { 407 | return to_string(chrono::system_clock::now()); 408 | } 409 | 410 | int main(int argc, char* argv[]) 411 | { 412 | if (argc != 5) 413 | { 414 | cout << R"USAGE( 415 | USAGE: 416 | watcher nginx_log_path sleep_second serve_content_root output_json_path 417 | 418 | This is a free software. lz96@foxmail.com)USAGE" << endl; 419 | return 0; 420 | } 421 | Infos::MemInfoGetter mg; 422 | Infos::CPUInfoGetter cg; 423 | Infos::NginxLogInfo nl(argv[1]); 424 | NginxLogEntryParser np; 425 | Infos::DiskSpaceGetter dg(argv[3]); 426 | Status s; 427 | for (long long cnt = 0;;++cnt) 428 | { 429 | cout << "[" << currentTime() << "]" << 430 | "Iteration " << cnt << " Begin" << endl; 431 | if (!std::isnan(cg.getCurrentValue())) s.checkAndAddCPU(cg.getCurrentValue()); 432 | s.checkAndAddMem(mg.getMemInfo()); 433 | auto newEntrys = nl.getIncrLines(); 434 | for (const auto & item :newEntrys) 435 | s.checkAndAddNginxInfos(np.parse(item)); 436 | s.updateDiskSpace(dg.getDiskSpace()); 437 | std::ofstream of(argv[4]); 438 | printJSON(of, s); 439 | of.flush(); 440 | of.close(); 441 | 442 | cout << s.stat() << endl; 443 | cout << "[" << currentTime() << "]" << 444 | "Iteration " << cnt << " end. Sleep for " << atoi(argv[2]) << "s" << endl; 445 | this_thread::sleep_for(chrono::seconds(std::atoi(argv[2]))); 446 | } 447 | 448 | } 449 | 450 | -------------------------------------------------------------------------------- /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 57 | products. If such problems arise substantially in other domains, we 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 65 | make it effectively proprietary. To prevent this, the GPL assures that 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 86 | exact copy. The resulting work is called a "modified version" of the 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 100 | parties to make or receive copies. Mere interaction with a user through 101 | a computer network, with no transfer of a copy, is not conveying. 102 | 103 | An interactive user interface displays "Appropriate Legal Notices" 104 | to the extent that it includes a convenient and prominently visible 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 119 | standard defined by a recognized standards body, or, in the case of 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 127 | Major Component, or to implement a Standard Interface for which an 128 | implementation is available to the public in source code form. A 129 | "Major Component", in this context, means a major essential component 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 | --------------------------------------------------------------------------------