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1 /* tinyweb - tiny web server library and daemon
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2 * Author: John Tsiombikas <nuclear@member.fsf.org>
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3 *
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4 * This program is placed in the public domain. Feel free to use it any
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5 * way you like. Mentions and retaining this attribution header will be
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6 * appreciated, but not required.
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7 */
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include "mime.h"
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11 #include "rbtree.h"
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12
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13 /* TODO: do proper content detection */
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14 struct mime_type {
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15 const char *suffix, *type;
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16 };
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17
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18 static struct mime_type def_types[] = {
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19 {"txt", "text/plain"},
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20 {"htm", "text/html"},
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21 {"html", "text/html"},
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22 {"png", "image/png"},
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23 {"jpg", "image/jpeg"},
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24 {"jpeg", "image/jpeg"},
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25 {"gif", "image/gif"},
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26 {"bmp", "image/bmp"},
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27 {"cgi", 0},
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28 {0, 0}
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29 };
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30
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31 static int init_types(void);
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32 static void del_func(struct rbnode *node, void *cls);
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33
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34 static struct rbtree *types;
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35
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36 static int init_types(void)
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37 {
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38 int i;
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39
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40 if(types) return 0;
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41
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42 if(!(types = rb_create(RB_KEY_STRING))) {
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43 return -1;
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44 }
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45 rb_set_delete_func(types, del_func, 0);
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46
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47 for(i=0; def_types[i].suffix; i++) {
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48 add_mime_type(def_types[i].suffix, def_types[i].type);
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49 }
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50 return 0;
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51 }
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52
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53 static void del_func(struct rbnode *node, void *cls)
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54 {
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55 free(node->key);
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56 free(node->data);
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57 }
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58
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59 int add_mime_type(const char *suffix, const char *type)
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60 {
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61 init_types();
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62
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63 return rb_insert(types, strdup(suffix), type ? strdup(type) : 0);
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64 }
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65
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66 const char *mime_type(const char *path)
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67 {
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68 const char *suffix;
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69
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70 init_types();
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71
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72 if((suffix = strrchr(path, '.'))) {
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73 struct rbnode *node = rb_find(types, (void*)(suffix + 1));
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74 if(node) {
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75 return node->data;
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76 }
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77 }
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78 return "text/plain";
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79 }
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