[lwip-commits] [SCM] lwIP - A Lightweight TCPIP stack branch, master, updated. master_at_STABLE-2_0_0-1216-g6706b37

[Simon Goldschmidt]

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- Log -----------------------------------------------------------------
commit 6706b3778e6d39127bca2faa7e5f5d13190656de
Author: goldsimon <address@hidden>
Date:   Fri Feb 2 09:29:52 2018 +0100

    httpd: add "struct file*" parameter to httpd_cgi_handler() callback

commit ab281cb7503cb85ef0f44f4f13213380b52cbce5
Author: Giuseppe Modugno <address@hidden>
Date:   Mon Nov 27 09:18:41 2017 +0100

    httpd: move httpd_cgi_handler() call
    
    This patch moves in advance httpd_cgi_handler() call, before assigning
    variables like hs->file and hs->left.
    
    In this way, CGI handler could prepare the reply data and set the
    "file properties", like file->data and file->len. At the exit, hs->file
    and hs->left is correctly assigned.
    
    The handler prototype says it can't access file pointer, however it is
    simple to obtain it after setting LWIP_HTTPD_FILE_STATE that enables a
    "file state" pointer. It is sufficient to assign file->state to file
    itself in fs_open_custom().
    
    For example, I have the request GET /login.cgi?user=admin&pwd=admin and
    I have to reply with some JSON data. The answer depends on parameters
    user and pwd passed in the query string.

-----------------------------------------------------------------------

Summary of changes:
 UPGRADING                     |  2 ++
 src/apps/httpd/httpd.c        | 42 +++++++++++++++++++++---------------------
 src/include/lwip/apps/httpd.h |  6 +++++-
 3 files changed, 28 insertions(+), 22 deletions(-)


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