[d392d3]: src / index / mimetype.cpp History

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mimetype.cpp    116 lines (98 with data), 2.6 kB 

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#ifndef lint

static char rcsid[] = "@(#$Id: mimetype.cpp,v 1.6 2005-03-25 09:40:27 dockes Exp $ (C) 2004 J.F.Dockes";

#endif



#include <ctype.h>



#include <string>

using std::string;

#include <list>

using std::list;



#include "mimetype.h"

#include "debuglog.h"

#include "execmd.h"

#include "conftree.h"



static string mimetypefromdata(const string &fn)

{

    list<string> args;



    args.push_back("-i");

    args.push_back(fn);

    ExecCmd ex;

    string result;

    string cmd = "file";

    int status = ex.doexec(cmd, args, 0, &result);

    if (status) {

	LOGERR(("mimetypefromdata: doexec: status 0x%x\n", status));

	return "";

    }

    // LOGDEB(("mimetypefromdata: %s [%s]\n", result.c_str(), fn.c_str()));

    list<string> res;

    ConfTree::stringToStrings(result, res);

    if (res.size() <= 1) 

	return "";

    list<string>::iterator it = res.begin();

    it++;

    string mime = *it;



    if (mime.length() > 0 && !isalpha(mime[mime.length() - 1]))

	mime.erase(mime.length() -1);



    return mime;

}



string mimetype(const string &fn, ConfTree *mtypes)

{

    if (mtypes == 0)

	return "";



    static list<string> stoplist;

    if (stoplist.empty()) {

	string stp;

	if (mtypes->get(string("recoll_noindex"), stp, "")) {

	    ConfTree::stringToStrings(stp, stoplist);

	}

    }



    if (!stoplist.empty()) {

	for (list<string>::const_iterator it = stoplist.begin();

	     it != stoplist.end(); it++) {

	    if (it->length() > fn.length())

		continue;

	    if (!fn.compare(fn.length() - it->length(), string::npos, *it)) {

		LOGDEB1(("mimetype: fn %s in stoplist (%s)\n", fn.c_str(), 

			 it->c_str()));

		return "";

	    }

	}

    }



    // If the file name has a suffix and we find it in the map, we're done

    string::size_type dot = fn.find_last_of(".");

    string suff;

    if (dot != string::npos) {

        suff = fn.substr(dot);

	for (unsigned int i = 0; i < suff.length(); i++)

	    suff[i] = tolower(suff[i]);



	string mtype;

	if (mtypes->get(suff, mtype, ""))

	    return mtype;

    }



    // Look at file data ? Only when no suffix

    if (suff.empty())

	return mimetypefromdata(fn);

    return "";

}







#ifdef _TEST_MIMETYPE_

#include <iostream>

const char *tvec[] = {

    "/toto/tutu",

    "/",

    "toto.txt",

    "toto.TXT",

    "toto.C.txt",

    "toto.C1",

    "",

};

const int n = sizeof(tvec) / sizeof(char*);

using namespace std;

int main(int argc, const char **argv)

{

    map<string, string>mtypes;

    mtypes[".txt"] = "text/plain";



    for (int i = 0; i < n; i++) {

	cout << tvec[i] << " -> " << mimetype(string(tvec[i]), mtypes) << endl;

    }

}

#endif