Mercurial Hosting > luan
annotate src/luan/modules/http/tools/Shell.luan @ 1520:d9a5405a3102
try statement
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Sun, 21 Jun 2020 18:14:13 -0600 |
parents | 1604d7f36f3a |
children | d3e61cd2aca0 |
rev | line source |
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1 local Luan = require "luan:Luan.luan" |
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2 local error = Luan.error |
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3 local load = Luan.load or error() |
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4 local to_string = Luan.to_string or error() |
1295 | 5 local range = Luan.range or error() |
1277 | 6 local Table = require "luan:Table.luan" |
1295 | 7 local concat = Table.concat or error() |
1277 | 8 local pack = Table.pack or error() |
9 local unpack = Table.unpack or error() | |
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10 local Time = require "luan:Time.luan" |
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11 local Thread = require "luan:Thread.luan" |
1295 | 12 local Html = require "luan:Html.luan" |
13 local html_encode = Html.encode or error() | |
14 local javascript_encode = Html.javascript_encode or error() | |
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15 local Io = require "luan:Io.luan" |
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16 local Http = require "luan:http/Http.luan" |
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17 local Logging = require "luan:logging/Logging.luan" |
1218 | 18 local logger = Logging.logger "Shell" |
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19 |
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20 |
1218 | 21 local Shell = {} |
503 | 22 |
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23 local count = 0 |
1322 | 24 local new_session = Thread.global_callable("shell.new_session",{next=function() |
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25 count = count + 1 |
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26 return to_string(count) |
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27 end}).next |
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28 |
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29 local env = {} |
1218 | 30 Shell.env = env |
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31 |
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32 local fns = {} |
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33 |
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34 function fns.run(cmd) |
1520 | 35 try |
36 try | |
37 return load("return "..cmd,"<web_shell>",env) | |
38 catch e | |
39 return load(cmd,"<web_shell>",env) | |
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40 end |
1520 | 41 catch e |
42 -- Io.print_to(Io.stderr,e) | |
43 return to_string(e) | |
44 end | |
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45 end |
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46 |
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47 local timeout = Time.period{hours=10} |
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48 |
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49 local function get_session(session_id) |
1322 | 50 return Thread.global_callable("shell.session"..session_id,fns,timeout) |
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51 end |
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52 |
1218 | 53 function Shell.respond() |
1295 | 54 local cmd = Http.request.parameters.cmd |
55 if cmd ~= nil then | |
56 Http.response.headers["content-type"] = "application/javascript" | |
1352 | 57 Io.stdout = Http.response.text_writer() |
1295 | 58 local session_id = Http.request.parameters.session or error() |
59 local session = get_session(session_id) | |
60 local rtn = pack( session.run(cmd) ) | |
61 %> | |
62 var pre = document.querySelector('pre'); | |
63 pre.innerHTML += '\n> <%=javascript_encode(html_encode(cmd))%>'; | |
64 <% | |
65 if rtn.n > 0 then | |
66 local t = {} | |
67 for i in range(1,rtn.n) do | |
68 t[#t+1] = javascript_encode(html_encode(to_string(rtn[i]))) | |
69 end | |
70 %> | |
71 pre.innerHTML += '\n<%=concat(t,"\t")%>'; | |
72 <% | |
73 end | |
1300 | 74 %> |
75 var input = document.querySelector('input'); | |
76 input.scrollIntoView(); | |
77 input.blur(); input.focus(); // because Chrome is retarded | |
78 <% | |
1295 | 79 return |
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80 end |
1352 | 81 Io.stdout = Http.response.text_writer() |
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82 %> |
1216 | 83 <!doctype html> |
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84 <html> |
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85 <head> |
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86 <title>Luan Shell</title> |
1295 | 87 <script> |
88 | |
89 function ajax(url) { | |
90 var request = new XMLHttpRequest(); | |
91 request.open( 'GET', url ); | |
92 request.onload = function() { | |
93 if( request.status !== 200 ) { | |
94 console.log( 'ajax failed: ' + request.status ); | |
95 return; | |
96 } | |
97 //console.log( request.responseText ); | |
98 eval( request.responseText ); | |
99 }; | |
100 request.send(); | |
101 } | |
102 | |
103 function submitted() { | |
104 var input = document.querySelector('input'); | |
105 ajax( '?session=<%=new_session()%>&cmd=' + encodeURIComponent(input.value) ); | |
106 input.value = ''; | |
107 } | |
108 | |
109 </script> | |
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110 <style> |
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111 body { |
1293 | 112 font-family: sans-serif; |
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113 } |
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114 pre { |
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115 font: inherit; |
1295 | 116 margin-bottom: 0; |
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117 } |
1295 | 118 table { |
119 width: 100%; | |
120 border-collapse: collapse; | |
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121 } |
1295 | 122 td { |
123 padding: 0; | |
124 } | |
125 td:last-child { | |
126 width: 100%; | |
127 } | |
128 input { | |
129 width: 100%; | |
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130 font: inherit; |
1295 | 131 outline: none; |
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132 } |
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133 </style> |
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134 </head> |
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135 <body> |
1295 | 136 <pre>Luan <%=Luan.VERSION%></pre> |
1300 | 137 <form onsubmit="submitted(); return false"> |
1295 | 138 <table> |
139 <tr> | |
140 <td>> </td> | |
141 <td><input name=cmd autofocus></td> | |
142 </tr> | |
143 </table> | |
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144 </form> |
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145 </body> |
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146 </html> |
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147 <% |
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148 end |
503 | 149 |
1218 | 150 return Shell |