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199 <h1>Class <code>luci.http.protocol.conditionals</code></h1>
210 <table class="function_list">
213 <td class="name" nowrap><a href="#if_match">if_match</a> (req, stat)</td>
218 Test whether the given message object contains an "If-Match" header and
219 compare it against the given stat object.</td>
223 <td class="name" nowrap><a href="#if_modified_since">if_modified_since</a> (req, stat)</td>
226 14.25 / If-Modified-Since
228 Test whether the given message object contains an "If-Modified-Since" header
229 and compare it against the given stat object.</td>
233 <td class="name" nowrap><a href="#if_none_match">if_none_match</a> (req, stat)</td>
236 14.26 / If-None-Match
238 Test whether the given message object contains an "If-None-Match" header and
239 compare it against the given stat object.</td>
243 <td class="name" nowrap><a href="#if_range">if_range</a> (req, stat)</td>
248 The If-Range header is currently not implemented due to the lack of general
249 byte range stuff in luci.http.protocol .</td>
253 <td class="name" nowrap><a href="#if_unmodified_since">if_unmodified_since</a> (req, stat)</td>
256 14.28 / If-Unmodified-Since
258 Test whether the given message object contains an "If-Unmodified-Since"
259 header and compare it against the given stat object.</td>
263 <td class="name" nowrap><a href="#mk_etag">mk_etag</a> (stat)</td>
266 Implement 14.19 / ETag.</td>
280 <h2><a name="functions"></a>Functions</h2>
281 <dl class="function">
285 <dt><a name="if_match"></a><strong>if_match</strong> (req, stat)</dt>
291 Test whether the given message object contains an "If-Match" header and
292 compare it against the given stat object.
299 req: HTTP request message object
303 stat: A file.stat object
313 <h3>Return values:</h3>
316 <li>Boolean indicating whether the precondition is ok
318 <li>Alternative status code if the precondition failed
329 <dt><a name="if_modified_since"></a><strong>if_modified_since</strong> (req, stat)</dt>
333 14.25 / If-Modified-Since
335 Test whether the given message object contains an "If-Modified-Since" header
336 and compare it against the given stat object.
343 req: HTTP request message object
347 stat: A file.stat object
357 <h3>Return values:</h3>
360 <li>Boolean indicating whether the precondition is ok
362 <li>Alternative status code if the precondition failed
364 <li>Table containing extra HTTP headers if the precondition failed
375 <dt><a name="if_none_match"></a><strong>if_none_match</strong> (req, stat)</dt>
379 14.26 / If-None-Match
381 Test whether the given message object contains an "If-None-Match" header and
382 compare it against the given stat object.
389 req: HTTP request message object
393 stat: A file.stat object
403 <h3>Return values:</h3>
406 <li>Boolean indicating whether the precondition is ok
408 <li>Alternative status code if the precondition failed
410 <li>Table containing extra HTTP headers if the precondition failed
421 <dt><a name="if_range"></a><strong>if_range</strong> (req, stat)</dt>
427 The If-Range header is currently not implemented due to the lack of general
428 byte range stuff in luci.http.protocol . This function will always return
429 false, 412 to indicate a failed precondition.
436 req: HTTP request message object
440 stat: A file.stat object
450 <h3>Return values:</h3>
453 <li>Boolean indicating whether the precondition is ok
455 <li>Alternative status code if the precondition failed
466 <dt><a name="if_unmodified_since"></a><strong>if_unmodified_since</strong> (req, stat)</dt>
470 14.28 / If-Unmodified-Since
472 Test whether the given message object contains an "If-Unmodified-Since"
473 header and compare it against the given stat object.
480 req: HTTP request message object
484 stat: A file.stat object
494 <h3>Return values:</h3>
497 <li>Boolean indicating whether the precondition is ok
499 <li>Alternative status code if the precondition failed
510 <dt><a name="mk_etag"></a><strong>mk_etag</strong> (stat)</dt>
514 Implement 14.19 / ETag.
522 stat: A file.stat structure
532 <h3>Return value:</h3>
533 String containing the generated tag suitable for ETag headers
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