[GitHub] [apisix] easlee opened a new pull request #6713: fix(bath-requests) read trailers

[GitBox]

easlee opened a new pull request #6713:
URL: https://github.com/apache/apisix/pull/6713


   ### Description
   
   当使用bath-requests插件，上游服务器返回的报文包含Transfer-Encoding: chunked时，只有第一个请求正常，其他请求返回
   {"reason":"upstream timeout","status":504}。
   查询源码后， 
定位到deps/share/lua/5.1/resty/http.lua文件中的_chunked_body_reader方法，并未处理trailers。
   
    if length > 0 then
                   local str, err = sock:receive(length)
                   if not str then
                       co_yield(nil, err)
                   end
   
                   max_chunk_size = co_yield(str) or default_chunk_size
   
                   -- If we're finished with this chunk, read the carriage 
return.
                   if remaining == 0 then
                       sock:receive(2) -- read \r\n
                   end
               else
                   -- Read the last (zero length) chunk's carriage return
                   -- !!! 此处未处理trailers，在有trailers的时候会读取到trailer的前两个字符
                   sock:receive(2) -- read \r\n
               end
   
   但此文件未包含在apisix的源码中，所以只在batch-requests.lua中做了修改。
   
   Fixes # (issue)
   
   ### Checklist
   
   - [ ] I have explained the need for this PR and the problem it solves
   - [ ] I have explained the changes or the new features added to this PR
   - [ ] I have added tests corresponding to this change
   - [ ] I have updated the documentation to reflect this change
   - [ ] I have verified that this change is backward compatible (If not, 
please discuss on the [APISIX mailing 
list](https://github.com/apache/apisix/tree/master#community) first)
   
   <!--
   
   Note
   
   1. Mark the PR as draft until it's ready to be reviewed.
   2. Always add/update tests for any changes unless you have a good reason.
   3. Always update the documentation to reflect the changes made in the PR.
   4. Make a new commit to resolve conversations instead of `push -f`.
   5. To resolve merge conflicts, merge master instead of rebasing.
   6. Use "request review" to notify the reviewer after making changes.
   7. Only a reviewer can mark a conversation as resolved.
   
   -->
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscr...@apisix.apache.org

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org