| rev |
line source |
|
jbe@0
|
1
|
|
jbe@0
|
2 Moonbridge reference
|
|
jbe@0
|
3 ====================
|
|
jbe@0
|
4
|
|
jbe@0
|
5
|
|
jbe@0
|
6
|
|
jbe@52
|
7 Global function listen{...}
|
|
jbe@0
|
8 ---------------------------
|
|
jbe@0
|
9
|
|
jbe@0
|
10 This function initializes the Moonbridge Network Server. It may be called
|
|
jbe@0
|
11 multiple times. However, it is not allowed to register additional listeners by
|
|
jbe@0
|
12 calling listen(...) from a "prepare", "connect", or "finish" handler.
|
|
jbe@0
|
13
|
|
jbe@0
|
14 See file "example.lua" for parametrization of the listen(...) function.
|
|
jbe@0
|
15
|
|
jbe@0
|
16 Warning: Moonbridge will fork the Lua environment to handle parallel requests.
|
|
jbe@0
|
17 Functions provided as "prepare", "connect", and "finish" handlers may access
|
|
jbe@0
|
18 global variables, but for every child process these global variables will not
|
|
jbe@0
|
19 be shared! If you require a global state, a DBMS, cache server, or similar is
|
|
jbe@0
|
20 necessary.
|
|
jbe@0
|
21
|
|
jbe@0
|
22
|
|
jbe@0
|
23
|
|
jbe@50
|
24 Global function timeout(...)
|
|
jbe@50
|
25 ----------------------------
|
|
jbe@50
|
26
|
|
jbe@50
|
27 Calling this function with a positive number (time in seconds) sets a timer
|
|
jbe@50
|
28 that kills the current process after the selected time runs out. The remaining
|
|
jbe@50
|
29 time can be queried by calling this function without arguments.
|
|
jbe@50
|
30
|
|
jbe@50
|
31 Calling this function with a single argument that is the number zero will
|
|
jbe@50
|
32 disable the timeout.
|
|
jbe@50
|
33
|
|
jbe@50
|
34 Another mode of operation is selected by passing two arguments: a time (in
|
|
jbe@50
|
35 seconds) as first argument and a function as second argument. In this case, a
|
|
jbe@50
|
36 sub-timer will be used to limit the execution time of the function. In case of
|
|
jbe@50
|
37 timeout, the process will be killed (and the timeout function does not return).
|
|
jbe@50
|
38 If the time for the sub-timer is longer than a previously set timeout (using
|
|
jbe@50
|
39 the timeout(...) function with one argument), the shorter timeout (of the
|
|
jbe@50
|
40 previous call of timeout(...)) will have precedence.
|
|
jbe@50
|
41
|
|
jbe@52
|
42 Timers are also automatically reset (disabled) when a handler (prepare handler
|
|
jbe@52
|
43 or connect handler) returns. To shutdown processes after a certain time waiting
|
|
jbe@52
|
44 for a new request, use the idle_time parameter of the listen function.
|
|
jbe@52
|
45
|
|
jbe@50
|
46
|
|
jbe@50
|
47
|
|
jbe@66
|
48 Function io.poll(read_fds, write_fds, timeout)
|
|
jbe@66
|
49 ----------------------------------------------
|
|
jbe@66
|
50
|
|
jbe@66
|
51 This function allows to wait for file descriptors to become ready for reading
|
|
jbe@66
|
52 or writing. It accepts the following arguments:
|
|
jbe@66
|
53
|
|
jbe@66
|
54 1. Table of file descriptors to wait for reading (optional, may be nil)
|
|
jbe@66
|
55 2. Table of file descriptors to wait for writing (optional, may be nil)
|
|
jbe@66
|
56 3. Timeout in seconds (optional, may be nil or zero to disable timeout)
|
|
jbe@66
|
57
|
|
jbe@66
|
58 Alternatively to file descriptors, the tables may contain file handles (in
|
|
jbe@66
|
59 which case the file descriptor is automatically extracted).
|
|
jbe@66
|
60
|
|
jbe@66
|
61 Please note that support for non-blocking I/O operations is limited if you use
|
|
jbe@66
|
62 ordinary file handles (as Moonbridge does). It is possible, however, to wait
|
|
jbe@66
|
63 until the first byte to read is available at a file handle. For more
|
|
jbe@66
|
64 information, see socket.input:pending().
|
|
jbe@66
|
65
|
|
jbe@66
|
66
|
|
jbe@66
|
67
|
|
jbe@0
|
68 Socket object passed to "connect" handler
|
|
jbe@0
|
69 -----------------------------------------
|
|
jbe@0
|
70
|
|
jbe@0
|
71 For every incoming connection, the registered "connect" handler is called with
|
|
jbe@0
|
72 a single socket object as argument, which is described below:
|
|
jbe@0
|
73
|
|
jbe@0
|
74
|
|
jbe@0
|
75 ### socket:cancel()
|
|
jbe@0
|
76
|
|
jbe@0
|
77 Closes the socket connection by sending a TCP RST package if possible to
|
|
jbe@43
|
78 indicate error condition. Returns true on success, or nil plus error message in
|
|
jbe@43
|
79 case of an I/O error. Using this method on sockets that have already been
|
|
jbe@43
|
80 closed (or canceled) will throw an error.
|
|
jbe@0
|
81
|
|
jbe@0
|
82 Warning: Previously sent (and flushed) data may be lost during transmission.
|
|
jbe@0
|
83
|
|
jbe@0
|
84
|
|
jbe@0
|
85 ### socket:close(timeout)
|
|
jbe@0
|
86
|
|
jbe@0
|
87 Closes the socket connection (input and output stream) by flushing all data and
|
|
jbe@43
|
88 sending a TCP FIN package. Returns true on success, or nil plus error message
|
|
jbe@43
|
89 in case of an I/O error. Using this method on sockets that have already been
|
|
jbe@43
|
90 closed (or canceled) will throw an error.
|
|
jbe@0
|
91
|
|
jbe@0
|
92 Warning: Pending data on the input stream may cause connection aborts (TCP RST)
|
|
jbe@0
|
93 depending on the particular operating system used. All pending input data
|
|
jbe@0
|
94 should have been read before calling socket:close().
|
|
jbe@0
|
95
|
|
jbe@0
|
96 The optional timeout parameter may be used to wait until all data has been sent
|
|
jbe@0
|
97 out, or until the timeout elapses (in which case a TCP RST is sent) whichever
|
|
jbe@0
|
98 happens first. A timeout value of 0 or nil causes immediate return and sending
|
|
jbe@0
|
99 of pending data in background (recommended).
|
|
jbe@0
|
100
|
|
jbe@0
|
101
|
|
jbe@0
|
102 ### socket:flush()
|
|
jbe@0
|
103
|
|
jbe@0
|
104 Alias for socket.output:flush()
|
|
jbe@0
|
105
|
|
jbe@0
|
106
|
|
jbe@0
|
107 ### socket.input
|
|
jbe@0
|
108
|
|
jbe@0
|
109 Lua file handle representing the input stream of the socket connection.
|
|
jbe@0
|
110 Supports the same methods as io.open()'s return values.
|
|
jbe@0
|
111
|
|
jbe@0
|
112
|
|
jbe@71
|
113 ### socket.input:xread(maxlen, terminator)
|
|
jbe@66
|
114
|
|
jbe@71
|
115 Reads as many bytes until either the maximum length is reached (first argument)
|
|
jbe@71
|
116 or a terminating character (second argument as string with a length of 1) is
|
|
jbe@71
|
117 encountered. In the latter case, the terminating character will be included in
|
|
jbe@71
|
118 the result.
|
|
jbe@66
|
119
|
|
jbe@71
|
120 On EOF, false (as first result value) and an error message (as second result
|
|
jbe@71
|
121 value) are returned. In case of an I/O error, nil and an error message are
|
|
jbe@71
|
122 returned.
|
|
jbe@71
|
123
|
|
jbe@71
|
124 This method is also available for any other Lua file handle.
|
|
jbe@66
|
125
|
|
jbe@66
|
126
|
|
jbe@71
|
127 ### socket.input:xread_nb(maxlen, terminator)
|
|
jbe@66
|
128
|
|
jbe@71
|
129 Same as socket.input:xread(maxlen, terminator), but non-blocking. If no more
|
|
jbe@71
|
130 data can be read due to blocking, this method returns a string containing the
|
|
jbe@71
|
131 data which has already been read. If no data could be read due to blocking,
|
|
jbe@71
|
132 then an empty string is returned.
|
|
jbe@66
|
133
|
|
jbe@71
|
134 On EOF, false (as first result value) and an error message (as second result
|
|
jbe@71
|
135 value) are returned. In case of an I/O error, nil and an error message are
|
|
jbe@71
|
136 returned.
|
|
jbe@66
|
137
|
|
jbe@71
|
138 This method is also available for any other Lua file handle.
|
|
jbe@66
|
139
|
|
jbe@66
|
140
|
|
jbe@0
|
141 ### socket.interval
|
|
jbe@0
|
142
|
|
jbe@0
|
143 Set to the name of an interval timer if the "connect" handler was called due to
|
|
jbe@0
|
144 an elapsed interval timer. Otherwise nil.
|
|
jbe@0
|
145
|
|
jbe@0
|
146
|
|
jbe@0
|
147 ### socket:lines()
|
|
jbe@0
|
148
|
|
jbe@0
|
149 Alias for socket.input:lines()
|
|
jbe@0
|
150
|
|
jbe@0
|
151
|
|
jbe@0
|
152 ### socket.local_ip4
|
|
jbe@0
|
153
|
|
jbe@0
|
154 Local IPv4 address used for the connection. Encoded as 4 raw bytes in form of a
|
|
jbe@0
|
155 string.
|
|
jbe@0
|
156
|
|
jbe@0
|
157
|
|
jbe@0
|
158 ### socket.local_ip6
|
|
jbe@0
|
159
|
|
jbe@0
|
160 Local IPv6 address used for the connection. Encoded as 16 raw bytes in form of
|
|
jbe@0
|
161 a string.
|
|
jbe@0
|
162
|
|
jbe@0
|
163
|
|
jbe@0
|
164 ### socket.local_tcpport
|
|
jbe@0
|
165
|
|
jbe@0
|
166 Local TCP port used for the connection.
|
|
jbe@0
|
167
|
|
jbe@0
|
168
|
|
jbe@0
|
169 ### socket.output
|
|
jbe@0
|
170
|
|
jbe@0
|
171 Lua file handle representing the output stream of the socket connection.
|
|
jbe@0
|
172 Supports the same methods as io.open()'s return values.
|
|
jbe@0
|
173
|
|
jbe@0
|
174
|
|
jbe@66
|
175 ### socket.output:close()
|
|
jbe@66
|
176
|
|
jbe@66
|
177 Performs a half-close (i.e. sends a TCP FIN package in case of a TCP socket).
|
|
jbe@66
|
178
|
|
jbe@66
|
179 Note: In order to shut down a TCP connection properly, it may be necessary to
|
|
jbe@66
|
180 read any pending data from socket.input before closing the socket completely
|
|
jbe@66
|
181 (e.g. with socket:close() or by returning from the connect handler). If there
|
|
jbe@66
|
182 is still incoming data, a TCP RST packet might be sent which can cause loss of
|
|
jbe@66
|
183 transmitted data.
|
|
jbe@66
|
184
|
|
jbe@66
|
185
|
|
jbe@71
|
186 ### socket.output:write_nb(...)
|
|
jbe@71
|
187
|
|
jbe@71
|
188 Non-blocking write. This function attempts to write as many bytes as possible,
|
|
jbe@71
|
189 returning a string containing all data that could not be written due to
|
|
jbe@71
|
190 blocking (potentially concatenating some or all remaining arguments to create
|
|
jbe@71
|
191 that string).
|
|
jbe@71
|
192
|
|
jbe@71
|
193 In case of an I/O error, nil (as first result value) and an error message (as
|
|
jbe@71
|
194 second result value) are returned.
|
|
jbe@71
|
195
|
|
jbe@71
|
196 This method is also available for any other Lua file handle.
|
|
jbe@71
|
197
|
|
jbe@71
|
198
|
|
jbe@0
|
199 ### socket:read(...)
|
|
jbe@0
|
200
|
|
jbe@0
|
201 Alias for socket.input:read()
|
|
jbe@0
|
202
|
|
jbe@0
|
203
|
|
jbe@0
|
204 ### socket.remote_ip4
|
|
jbe@0
|
205
|
|
jbe@0
|
206 Remote IPv4 address used for the connection. Encoded as 4 raw bytes in form of
|
|
jbe@0
|
207 a string.
|
|
jbe@0
|
208
|
|
jbe@0
|
209
|
|
jbe@0
|
210 ### socket.remote_ip6
|
|
jbe@0
|
211
|
|
jbe@0
|
212 Remote IPv6 address used for the connection. Encoded as 16 raw bytes in form of
|
|
jbe@0
|
213 a string.
|
|
jbe@0
|
214
|
|
jbe@0
|
215
|
|
jbe@0
|
216 ### socket.remote_tcpport
|
|
jbe@0
|
217
|
|
jbe@0
|
218 Remote TCP port used for the connection.
|
|
jbe@0
|
219
|
|
jbe@0
|
220
|
|
jbe@0
|
221 ### socket:write(...)
|
|
jbe@0
|
222
|
|
jbe@0
|
223 Alias for socket.output:write(...)
|
|
jbe@0
|
224
|
|
jbe@0
|
225
|
|
jbe@71
|
226 ### socket:write_nb(...)
|
|
jbe@71
|
227
|
|
jbe@71
|
228 Alias for socket.output:write(...)
|
|
jbe@71
|
229
|
|
jbe@71
|
230
|
|
jbe@71
|
231 ### socket:xread(maxlen, terminator)
|
|
jbe@71
|
232
|
|
jbe@71
|
233 Alias for socket.input:xread(...)
|
|
jbe@71
|
234
|
|
jbe@71
|
235
|
|
jbe@71
|
236 ### socket:xread_nb(maxlen, terminator)
|
|
jbe@71
|
237
|
|
jbe@71
|
238 Alias for socket.input:xread_nb(...)
|
|
jbe@71
|
239
|
|
jbe@71
|
240
|
|
jbe@0
|
241
|
|
jbe@0
|
242 HTTP module
|
|
jbe@0
|
243 -----------
|
|
jbe@0
|
244
|
|
jbe@0
|
245 The http module exports the function http.generate_handler(callback) that
|
|
jbe@0
|
246 converts an HTTP handler to a "connect" handler. See file "example.lua" for an
|
|
jbe@0
|
247 example of invocation. A table with options may be passed either as a second
|
|
jbe@0
|
248 argument, or as a first argument preceeding the callback function (whichever is
|
|
jbe@0
|
249 more convenient).
|
|
jbe@0
|
250
|
|
jbe@0
|
251 The following options are supported:
|
|
jbe@0
|
252
|
|
jbe@0
|
253 - request_body_size_limit: maximum size of payload of HTTP request body
|
|
jbe@0
|
254 (transfer encoding is allowed to add a limited amount of extra data)
|
|
jbe@0
|
255 - chunk_size: optional default value for maximum_input_chunk_size and
|
|
jbe@0
|
256 minimum_output_chunk_size
|
|
jbe@0
|
257 - request_header_size_limit: maximum size of HTTP request headers
|
|
jbe@0
|
258 - maximum_input_chunk_size: maximum chunk size when streaming a request body or
|
|
jbe@0
|
259 certain POST fields (bigger chunks will be fragmented automatically)
|
|
jbe@0
|
260 - minimum_output_chunk_size: minimum size for a chunk when sending a response
|
|
jbe@0
|
261 body (smaller chunks will be buffered and concatenated with future data;
|
|
jbe@0
|
262 ignored when request:flush() is called)
|
|
jbe@0
|
263 - static_headers: a set of headers to be included in every HTTP response
|
|
jbe@0
|
264 (may be a string, a table or strings, or a table of key-value pairs)
|
|
jbe@0
|
265
|
|
jbe@0
|
266 The callback function receives a single request object as argument, which is
|
|
jbe@0
|
267 described below.
|
|
jbe@0
|
268
|
|
jbe@0
|
269
|
|
jbe@0
|
270 ### request.body
|
|
jbe@0
|
271
|
|
jbe@0
|
272 The request body (without headers) as a string. Accessing this value makes
|
|
jbe@0
|
273 further access to request.post_params and request.post_params_list, or
|
|
jbe@0
|
274 invocation of request:stream_request_body(...) impossible.
|
|
jbe@0
|
275
|
|
jbe@0
|
276
|
|
jbe@60
|
277 ### request:close_after_finish()
|
|
jbe@60
|
278
|
|
jbe@60
|
279 Closes the connection after answering the request.
|
|
jbe@60
|
280
|
|
jbe@60
|
281 This method can only be called before the HTTP response header section has been
|
|
jbe@60
|
282 finished (i.e. before request:finish_headers(), request:send_data(...), or
|
|
jbe@60
|
283 request:finish() were called), but it may be called before a status code has
|
|
jbe@60
|
284 been sent using request:send_status(...).
|
|
jbe@60
|
285
|
|
jbe@60
|
286 A corresponding "Connection: close" header is automatically sent.
|
|
jbe@60
|
287
|
|
jbe@60
|
288
|
|
jbe@0
|
289 ### request.cookies
|
|
jbe@0
|
290
|
|
jbe@0
|
291 A table with all cookies sent by the client.
|
|
jbe@0
|
292
|
|
jbe@0
|
293
|
|
jbe@0
|
294 ### request.defer_reading()
|
|
jbe@0
|
295
|
|
jbe@0
|
296 Disables automatic request body processing on write. Can be called before
|
|
jbe@0
|
297 sending a HTTP status code to send a response before the request has been fully
|
|
jbe@0
|
298 received.
|
|
jbe@0
|
299
|
|
jbe@0
|
300 CAUTION: Responding to a request before the request body has been processed may
|
|
jbe@0
|
301 lead to a deadlock if the browser does not process the response while trying to
|
|
jbe@0
|
302 send the request. Therefore, this function should only be used if:
|
|
jbe@0
|
303
|
|
jbe@0
|
304 - the TCP stack has enough buffer space for the response (i.e. if the response
|
|
jbe@0
|
305 is small enough), and if
|
|
jbe@0
|
306 - a timer is used to cancel the response in case of a deadlock.
|
|
jbe@0
|
307
|
|
jbe@0
|
308 It is recommended to not use this function unless certain performance tweaks
|
|
jbe@0
|
309 are desired.
|
|
jbe@0
|
310
|
|
jbe@0
|
311
|
|
jbe@50
|
312 ### request.faulty
|
|
jbe@50
|
313
|
|
jbe@50
|
314 Normally set to false. In case of a read or write error on the client
|
|
jbe@50
|
315 connection, this value is set to true before a Lua error is raised.
|
|
jbe@50
|
316
|
|
jbe@50
|
317 A faulty request handle must not be used, or another Lua error will be raised.
|
|
jbe@50
|
318
|
|
jbe@50
|
319
|
|
jbe@0
|
320 ### request:finish()
|
|
jbe@0
|
321
|
|
jbe@0
|
322 Finishes and flushes a HTTP response. May be called multiple times. An
|
|
jbe@0
|
323 HTTP status, all headers, and the response body (if applicable) must have been
|
|
jbe@0
|
324 previously sent. After calling this method, no further data may be written.
|
|
jbe@0
|
325
|
|
jbe@0
|
326
|
|
jbe@0
|
327 ### request:finish_headers()
|
|
jbe@0
|
328
|
|
jbe@0
|
329 Finishes and flushes the HTTP response header section. May be called multiple
|
|
jbe@0
|
330 times, as long as the request is not finished completely. This method is
|
|
jbe@0
|
331 automatically invoked if the application is beginning to send a response body.
|
|
jbe@0
|
332 After calling this method, no further headers may be sent.
|
|
jbe@0
|
333
|
|
jbe@0
|
334
|
|
jbe@0
|
335 ### request:flush()
|
|
jbe@0
|
336
|
|
jbe@0
|
337 Flushes any pending output data. Note: In order to mark the end of a response
|
|
jbe@0
|
338 body, it is required to call request:finish().
|
|
jbe@0
|
339
|
|
jbe@0
|
340
|
|
jbe@0
|
341 ### request.get_params
|
|
jbe@0
|
342
|
|
jbe@0
|
343 A table that maps field names to their corresponding GET value. If there are
|
|
jbe@0
|
344 several GET values with the given field name, then the first value is used.
|
|
jbe@0
|
345
|
|
jbe@35
|
346 Note: May be implemented through metamethods, but does support iteration
|
|
jbe@35
|
347 through pairs(...).
|
|
jbe@35
|
348
|
|
jbe@0
|
349
|
|
jbe@0
|
350 ### request.get_params_list
|
|
jbe@0
|
351
|
|
jbe@0
|
352 A table that maps field names to a sequence of their corresponding GET values.
|
|
jbe@0
|
353
|
|
jbe@35
|
354 Note: May be implemented through metamethods, but does support iteration
|
|
jbe@35
|
355 through pairs(...).
|
|
jbe@35
|
356
|
|
jbe@0
|
357
|
|
jbe@0
|
358 ### request.headers
|
|
jbe@0
|
359
|
|
jbe@0
|
360 A table that maps (case-insensitively) a HTTP header field name to a sequence
|
|
jbe@0
|
361 of values. One entry is created for every occurrence of a header line with the
|
|
jbe@0
|
362 given field name).
|
|
jbe@0
|
363
|
|
jbe@0
|
364
|
|
jbe@0
|
365 ### request.headers_csv_string
|
|
jbe@0
|
366
|
|
jbe@0
|
367 A table that maps (case-insensitively) a HTTP header field name to a comma
|
|
jbe@0
|
368 separated string. Multiple occurrences of the header with the given field name
|
|
jbe@0
|
369 are automatically merged into the comma separated string.
|
|
jbe@0
|
370
|
|
jbe@0
|
371
|
|
jbe@0
|
372 ### request.headers_csv_table
|
|
jbe@0
|
373
|
|
jbe@0
|
374 A table that maps (case-insensitively) a HTTP header field name to a sequence
|
|
jbe@0
|
375 of values. One entry is created for every comma separated value of each header
|
|
jbe@0
|
376 with the given field name.
|
|
jbe@0
|
377
|
|
jbe@0
|
378
|
|
jbe@0
|
379 ### request.headers_flags
|
|
jbe@0
|
380
|
|
jbe@0
|
381 A table that maps (case-insensitively) a HTTP header field name to another
|
|
jbe@0
|
382 table which (again case-insensitively) maps a string to a boolean, depending on
|
|
jbe@0
|
383 whether this string occurred in the list of comma separated values of one
|
|
jbe@0
|
384 header line with the given field name that was the key in the first table.
|
|
jbe@0
|
385
|
|
jbe@0
|
386
|
|
jbe@0
|
387 ### request.headers_value
|
|
jbe@0
|
388
|
|
jbe@0
|
389 A table that maps (case-insensitively) a HTTP header field name to a value. If
|
|
jbe@0
|
390 multiple header lines with the given field name have been received, false is
|
|
jbe@0
|
391 used as value.
|
|
jbe@0
|
392
|
|
jbe@0
|
393
|
|
jbe@0
|
394 ### request.method
|
|
jbe@0
|
395
|
|
jbe@0
|
396 The HTTP request method, e.g. "HEAD", "GET", or "POST".
|
|
jbe@0
|
397
|
|
jbe@0
|
398
|
|
jbe@0
|
399 ### request.path
|
|
jbe@0
|
400
|
|
jbe@10
|
401 The requested path without a leading slash and without the query part (e.g.
|
|
jbe@10
|
402 "index.html" if "/index.html?a=b&c=d" has been requested). For the query part,
|
|
jbe@10
|
403 see request.query.
|
|
jbe@10
|
404
|
|
jbe@10
|
405 This value will be nil if (and only if) the request method is "OPTIONS" with a
|
|
jbe@10
|
406 request target equal to "*" (see also asterisk-form of request-target in
|
|
jbe@10
|
407 section 5.3.4 in RFC 7230).
|
|
jbe@0
|
408
|
|
jbe@0
|
409
|
|
jbe@0
|
410 ### request.post_metadata
|
|
jbe@0
|
411
|
|
jbe@0
|
412 Only set for multipart/form-data POST requests. A table that maps field names
|
|
jbe@0
|
413 to their corresponding POST metadata table which contains two entries:
|
|
jbe@0
|
414 "file_name" and "content_type". If there are several POST values with the given
|
|
jbe@0
|
415 field name, then the first value/file is used.
|
|
jbe@0
|
416
|
|
jbe@0
|
417
|
|
jbe@0
|
418 ### request.post_metadata_list
|
|
jbe@0
|
419
|
|
jbe@0
|
420 Only set for multipart/form-data POST requests. A table that maps field names
|
|
jbe@0
|
421 to a sequence with their corresponding POST metadata tables. Needed if multiple
|
|
jbe@0
|
422 files are uploaded with the same field name.
|
|
jbe@0
|
423
|
|
jbe@0
|
424
|
|
jbe@0
|
425 ### request.post_params
|
|
jbe@0
|
426
|
|
jbe@0
|
427 A table that maps field names to their corresponding POST value. If there are
|
|
jbe@0
|
428 several POST values with the given field name, then the first value is used.
|
|
jbe@0
|
429
|
|
jbe@35
|
430 Note: May be implemented through metamethods, but does support iteration
|
|
jbe@35
|
431 through pairs(...).
|
|
jbe@35
|
432
|
|
jbe@0
|
433
|
|
jbe@0
|
434 ### request.post_params_list
|
|
jbe@0
|
435
|
|
jbe@0
|
436 A table that maps field names to a sequence of their corresponding POST values.
|
|
jbe@0
|
437
|
|
jbe@35
|
438 Note: May be implemented through metamethods, but does support iteration
|
|
jbe@35
|
439 through pairs(...).
|
|
jbe@35
|
440
|
|
jbe@0
|
441
|
|
jbe@0
|
442 ### request.query
|
|
jbe@0
|
443
|
|
jbe@12
|
444 Query part of the request target including the leading question mark, e.g.
|
|
jbe@12
|
445 "?a=b&c=d" if the requested target is "/index.html?a=b&c=d". The data is
|
|
jbe@10
|
446 automatically parsed and made available through request.get_params and
|
|
jbe@10
|
447 request.get_params_list.
|
|
jbe@10
|
448
|
|
jbe@10
|
449 If there is no query part given in the request target, then this string is
|
|
jbe@10
|
450 the empty string. This value will be nil if (and only if) the request method
|
|
jbe@10
|
451 is "OPTIONS" with a request target equal to "*" (see also asterisk-form of
|
|
jbe@10
|
452 request-target in section 5.3.4 in RFC 7230).
|
|
jbe@0
|
453
|
|
jbe@0
|
454
|
|
jbe@0
|
455 ### request:process_request_body()
|
|
jbe@0
|
456
|
|
jbe@0
|
457 Starts processing the request body (if existent) to set the values
|
|
jbe@0
|
458 request.post_params, request.post_params_list, request.post_metadata, and
|
|
jbe@0
|
459 and request.post_metadata_list and/or to call POST field stream handlers that
|
|
jbe@0
|
460 have been previously registered with request:stream_post_param(...) or
|
|
jbe@0
|
461 request:stream_post_params(...).
|
|
jbe@0
|
462
|
|
jbe@0
|
463 This method gets invoked automatically when the POST param tables
|
|
jbe@0
|
464 (request.post_params, etc.) are accessed, or if a response is sent (to avoid
|
|
jbe@0
|
465 deadlocks with the webbrowser). (Note: Automatic request body processing on
|
|
jbe@0
|
466 write may be disabled by calling request:defer_reading().)
|
|
jbe@0
|
467
|
|
jbe@0
|
468 After this method returned, all registered POST field stream handlers have
|
|
jbe@0
|
469 received all data. Registration of other POST field stream handlers is not
|
|
jbe@0
|
470 possible after this method has been called (or after request.post_params_list
|
|
jbe@0
|
471 or request.post_params have been accessed).
|
|
jbe@0
|
472
|
|
jbe@0
|
473
|
|
jbe@0
|
474 ### request:send_data(...)
|
|
jbe@0
|
475
|
|
jbe@0
|
476 Sends data as response body. All arguments are converted via tostring(...) and
|
|
jbe@0
|
477 concatenated. May be called multiple times until the request has been finished
|
|
jbe@0
|
478 by calling request:finish().
|
|
jbe@0
|
479
|
|
jbe@0
|
480 If the request method (see request.method) is "HEAD", then calls to
|
|
jbe@0
|
481 request:send_data(...) are automatically ignored.
|
|
jbe@0
|
482
|
|
jbe@0
|
483
|
|
jbe@0
|
484 ### request:send_header(key, value)
|
|
jbe@0
|
485
|
|
jbe@0
|
486 Sends a HTTP response header that consists of the given key and the given
|
|
jbe@0
|
487 value. Note: Key and value must be provided as separate arguments. Before any
|
|
jbe@0
|
488 headers can be sent, a HTTP status must have been set with
|
|
jbe@0
|
489 request:send_status(status_string).
|
|
jbe@0
|
490
|
|
jbe@0
|
491
|
|
jbe@0
|
492 ### request:send_status(status_string)
|
|
jbe@0
|
493
|
|
jbe@0
|
494 Sends a HTTP response status that is given as a string consisting of a 3-digit
|
|
jbe@0
|
495 number and an explanatory string, e.g. "200 OK" or "404 Not Found". This
|
|
jbe@0
|
496 function must be called once before any headers or response body data may be
|
|
jbe@0
|
497 sent.
|
|
jbe@0
|
498
|
|
jbe@0
|
499
|
|
jbe@0
|
500 ### request.socket
|
|
jbe@0
|
501
|
|
jbe@0
|
502 The underlaying socket. Can be used to force a TCP RST, etc.
|
|
jbe@0
|
503
|
|
jbe@0
|
504
|
|
jbe@0
|
505 ### request:stream_post_param(field_name, callback)
|
|
jbe@0
|
506
|
|
jbe@0
|
507 Registers a stream handler for the given POST parameter. The callback function
|
|
jbe@0
|
508 will be called in the following manner:
|
|
jbe@0
|
509
|
|
jbe@0
|
510 - For the initial chunk, the first chunk gets passed as first argument while a
|
|
jbe@0
|
511 table with metadata ("field_name" and "content_type") gets passed as second
|
|
jbe@0
|
512 argument. In case of an immediate EOF (i.e. an empty file), the passed
|
|
jbe@0
|
513 chunk is the empty string. In all other cases the chunk has a length greater
|
|
jbe@0
|
514 than zero.
|
|
jbe@0
|
515 - For any remaining chunks, the respective chunk gets passed as first and only
|
|
jbe@0
|
516 argument (no metadata). Here, the chunk has always a length greater than
|
|
jbe@0
|
517 zero.
|
|
jbe@0
|
518 - To indicate the end of the stream, the callback function is called without
|
|
jbe@0
|
519 arguments. This also happens in case of an immediate EOF (see above).
|
|
jbe@0
|
520
|
|
jbe@0
|
521 In case of an immediate EOF (i.e. an empty file), the callback function is thus
|
|
jbe@0
|
522 called as follows:
|
|
jbe@0
|
523
|
|
jbe@0
|
524 - The first time with an empty string as first argument, and with the metadata
|
|
jbe@0
|
525 as second argument.
|
|
jbe@0
|
526 - The second time without any arguments.
|
|
jbe@0
|
527
|
|
jbe@0
|
528
|
|
jbe@0
|
529 ### request:stream_post_params(pattern, callback)
|
|
jbe@0
|
530
|
|
jbe@0
|
531 Same as request:stream_post_param(...) but providing a string pattern to match
|
|
jbe@0
|
532 multiple field names (e.g. "^file_[0-9]+$").
|
|
jbe@0
|
533
|
|
jbe@0
|
534
|
|
jbe@0
|
535 ### request:stream_request_body(callback)
|
|
jbe@0
|
536
|
|
jbe@0
|
537 Start streaming of request body. For each chunk of the request body, the
|
|
jbe@0
|
538 callback function is called with the corresponding chunk. End of data is
|
|
jbe@0
|
539 indicated through return of request:stream_request_body(...) (not by calling
|
|
jbe@0
|
540 the callback without arguments).
|
|
jbe@0
|
541
|
|
jbe@44
|
542 The function may be called with nil instead of a callback function. In this
|
|
jbe@44
|
543 case, the request body is read and discarded. Only if nil is passed instead of
|
|
jbe@44
|
544 a callback, then the function may also be invoked when the request body has
|
|
jbe@44
|
545 already been read and/or processed. In the latter case, the function performs
|
|
jbe@44
|
546 no operation.
|
|
jbe@0
|
547
|
|
jbe@44
|
548
|