Mercurial > sci
annotate scid/crud.c @ 27:dae2de19ca5d
misc: switch to JSON everywhere
author | David Demelier <markand@malikania.fr> |
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date | Wed, 03 Aug 2022 15:18:09 +0200 |
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1 /* |
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2 * crud.c -- convenient helpers for page-api-* |
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3 * |
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4 * Copyright (c) 2021 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 #include "log.h" |
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20 #include "page.h" |
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21 |
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22 static int |
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23 save(struct kreq *r, int (*saver)(json_t *), const char *topic) |
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24 { |
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25 json_t *doc; |
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26 json_error_t err; |
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27 int ret = -1; |
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28 |
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29 if (!(doc = json_loads(r->fields[0].val, 0, &err))) |
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30 log_warn("%s: invalid JSON input: %s", topic, err.text); |
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31 else { |
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32 if (saver(doc) < 0) |
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33 log_warn("%s: database insertion failed", topic); |
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34 else |
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35 ret = 0; |
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36 |
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37 json_decref(doc); |
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38 } |
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39 |
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40 return ret; |
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41 } |
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42 |
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43 void |
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44 crud_insert(struct kreq *r, int (*saver)(json_t *), const char *topic) |
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45 { |
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46 if (r->fieldsz < 1) |
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47 page(r, KHTTP_400, KMIME_APP_JSON, NULL, NULL); |
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48 else if (save(r, saver, topic) < 0) |
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49 page(r, KHTTP_500, KMIME_APP_JSON, NULL, NULL); |
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50 else { |
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51 khttp_head(r, kresps[KRESP_CONTENT_TYPE], "%s", kmimetypes[KMIME_APP_JSON]); |
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52 khttp_head(r, kresps[KRESP_STATUS], "%s", khttps[KHTTP_200]); |
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53 khttp_body(r); |
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54 khttp_free(r); |
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55 } |
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56 } |
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57 |
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58 void |
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59 crud_list(struct kreq *r, json_t *doc) |
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60 { |
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61 char *str; |
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62 |
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63 if (!doc) |
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64 page(r, KHTTP_500, KMIME_APP_JSON, NULL, NULL); |
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65 else { |
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66 if (!(str = json_dumps(doc, JSON_COMPACT))) |
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67 page(r, KHTTP_500, KMIME_APP_JSON, NULL, NULL); |
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68 else { |
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69 khttp_head(r, kresps[KRESP_CONTENT_TYPE], "%s", kmimetypes[KMIME_APP_JSON]); |
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70 khttp_head(r, kresps[KRESP_STATUS], "%s", khttps[KHTTP_200]); |
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71 khttp_body(r); |
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72 khttp_printf(r, "%s", str); |
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73 khttp_free(r); |
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74 json_decref(doc); |
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75 } |
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76 |
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77 free(str); |
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78 } |
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79 } |