src/python/database.c

   1 /*
   2         libloc - A library to determine the location of someone on the Internet
   3
   4         Copyright (C) 2017 IPFire Development Team <info@ipfire.org>
   5
   6         This library is free software; you can redistribute it and/or
   7         modify it under the terms of the GNU Lesser General Public
   8         License as published by the Free Software Foundation; either
   9         version 2.1 of the License, or (at your option) any later version.
  10
  11         This library is distributed in the hope that it will be useful,
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14         Lesser General Public License for more details.
  15 */
  16
  17 #include <Python.h>
  18
  19 #include <loc/libloc.h>
  20 #include <loc/database.h>
  21
  22 #include "locationmodule.h"
  23 #include "as.h"
  24 #include "database.h"
  25
  26 static PyObject* Database_new(PyTypeObject* type, PyObject* args, PyObject* kwds) {
  27         DatabaseObject* self = (DatabaseObject*)type->tp_alloc(type, 0);
  28
  29         return (PyObject*)self;
  30 }
  31
  32 static void Database_dealloc(DatabaseObject* self) {
  33         if (self->db)
  34                 loc_database_unref(self->db);
  35
  36         Py_TYPE(self)->tp_free((PyObject* )self);
  37 }
  38
  39 static int Database_init(DatabaseObject* self, PyObject* args, PyObject* kwargs) {
  40         const char* path = NULL;
  41
  42         if (!PyArg_ParseTuple(args, "s", &path))
  43                 return -1;
  44
  45         // Open the file for reading
  46         FILE* f = fopen(path, "r");
  47         if (!f)
  48                 return -1;
  49
  50         // Load the database
  51         int r = loc_database_new(loc_ctx, &self->db, f);
  52         fclose(f);
  53
  54         // Return on any errors
  55         if (r)
  56                 return -1;
  57
  58         return 0;
  59 }
  60
  61 static PyObject* Database_get_description(DatabaseObject* self) {
  62         const char* description = loc_database_get_description(self->db);
  63
  64         return PyUnicode_FromString(description);
  65 }
  66
  67 static PyObject* Database_get_vendor(DatabaseObject* self) {
  68         const char* vendor = loc_database_get_vendor(self->db);
  69
  70         return PyUnicode_FromString(vendor);
  71 }
  72
  73 static PyObject* Database_get_created_at(DatabaseObject* self) {
  74         time_t created_at = loc_database_created_at(self->db);
  75
  76         return PyLong_FromLong(created_at);
  77 }
  78
  79 static PyObject* Database_get_as(DatabaseObject* self, PyObject* args) {
  80         struct loc_as* as = NULL;
  81         uint32_t number = 0;
  82
  83         if (!PyArg_ParseTuple(args, "i", &number))
  84                 return NULL;
  85
  86         // Try to retrieve the AS
  87         int r = loc_database_get_as(self->db, &as, number);
  88         if (r)
  89                 return NULL;
  90
  91         // Create an AS object
  92         if (as) {
  93                 PyObject* obj = new_as(&ASType, as);
  94                 loc_as_unref(as);
  95
  96                 return obj;
  97         }
  98
  99         // Nothing found
 100         Py_RETURN_NONE;
 101 }
 102
 103 static struct PyMethodDef Database_methods[] = {
 104         {
 105                 "get_as",
 106                 (PyCFunction)Database_get_as,
 107                 METH_VARARGS,
 108                 NULL,
 109         },
 110         { NULL },
 111 };
 112
 113 static struct PyGetSetDef Database_getsetters[] = {
 114         {
 115                 "created_at",
 116                 (getter)Database_get_created_at,
 117                 NULL,
 118                 NULL,
 119                 NULL,
 120         },
 121         {
 122                 "description",
 123                 (getter)Database_get_description,
 124                 NULL,
 125                 NULL,
 126                 NULL,
 127         },
 128         {
 129                 "vendor",
 130                 (getter)Database_get_vendor,
 131                 NULL,
 132                 NULL,
 133                 NULL,
 134         },
 135         { NULL },
 136 };
 137
 138 PyTypeObject DatabaseType = {
 139         PyVarObject_HEAD_INIT(NULL, 0)
 140         tp_name:                "location.Database",
 141         tp_basicsize:           sizeof(DatabaseObject),
 142         tp_flags:               Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
 143         tp_new:                 Database_new,
 144         tp_dealloc:             (destructor)Database_dealloc,
 145         tp_init:                (initproc)Database_init,
 146         tp_doc:                 "Database object",
 147         tp_methods:             Database_methods,
 148         tp_getset:              Database_getsetters,
 149 };