get_asset.c File Reference

#include <sys/types.h>
#include <time.h>
#include "http/header.h"
#include "http/message.h"
#include "http/request.h"
#include "http/response.h"
#include "http/worker.h"
#include "utils/memory.h"
#include "hash.h"

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Functions
HttpMessage	httpWorkerGetAsset (HttpWorker this, const char *fname)

Detailed Description

Author

Georg Hopp

Copyright

Copyright © 2012 Georg Hopp

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file get_asset.c.

Function Documentation

HttpMessage httpWorkerGetAsset	(	HttpWorker	this,
		const char *	fname
	)

Definition at line 36 of file get_asset.c.

References CSTRA, hashGet(), httpResponse304(), httpResponse404(), and httpResponseAsset().

Referenced by httpWorkerProcess().

{
    char *      match;
    size_t      nmatch;
    HttpHeader  header;
    HttpMessage message;

    size_t nfname = strlen(fname);

    header = hashGet(
            ((HttpMessage)this->current_request)->header,
            CSTRA("If-None-Match"));

    if (NULL == header) {
        match  = "";
        nmatch = 0;
    }
    else {
        match  = (header->value)[0];
        nmatch = (header->nvalue)[0];
    }

    /*
     * assets expire after 12 hours...
     */
    message = (HttpMessage)httpResponseAsset(
            fname,
            nfname,
            time(NULL) + 43200);

    if (NULL == message) {
        return (HttpMessage)httpResponse404();
    }

    if (message->asset->netag == nmatch
            && 0 == memcmp(message->asset->etag, match, nmatch)) {
        HttpMessage new_message;

        new_message = (HttpMessage)httpResponse304(
                message->asset->mime_type, message->asset->nmime_type,
                message->asset->etag, message->asset->netag,
                message->asset->mtime, message->asset->nmtime);

        delete(message);

        return new_message;
    }   

    return message;
}

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