127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/*
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* Treebird - Lightweight frontend for Pleroma
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* Copyright (C) 2022 Nekobit
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <stdlib.h>
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#include "path.h"
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#include "index.h"
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#include "account.h"
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#include "error.h"
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int parse_path(REQUEST_T req,
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struct session* ssn,
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mastodont_t* api,
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struct path_info* path_info)
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{
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int res = 0;
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int fail = 0, fin = 0;
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char* p = path_info->path + 1;
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char* p2 = GET_ENV("PATH_INFO", req) + 1;
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// Stored into data
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char* tmp = NULL;
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char** data = NULL;
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size_t size = 0;
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char* after_str = 0;
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size_t read_len;
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for (int i = 0, j = 0; p[j] || p2[i]; (++i, ++j))
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switch (p[j])
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{
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case ':':
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// TODO null check
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if (p[j+1] == '\0')
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{
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after_str = strchr(p2 + i, '/');
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if (!after_str)
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after_str = p2+i + strlen(p2+i);
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fin = 1;
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}
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else
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after_str = strstr(p2 + i, "/");
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if (!after_str)
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{
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fail = 1;
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goto breakpt;
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}
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read_len = (size_t)after_str - (size_t)(p2 + i);
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// Copy in new data from the string we just read
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tmp = tb_malloc(read_len+1);
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strncpy(tmp, after_str - read_len, read_len);
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tmp[read_len] = '\0';
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// Add our new string
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data = tb_realloc(data, ++size * sizeof(tmp));
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data[size-1] = tmp;
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// Move ahead (-1 because we move again)
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i += read_len - 1;
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if (fin) goto breakpt;
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break;
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default:
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if (p2[i] == '/' && p[j] == '\0') goto breakpt;
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if (p[j] != p2[i])
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{
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fail = 1;
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goto breakpt;
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}
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break;
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}
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breakpt:
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if (!fail)
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{
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path_info->callback(req, ssn, api, data);
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}
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else
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{
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res = 1;
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}
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// Cleanup
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for (size_t i = 0; i < size; ++i)
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{
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tb_free(data[i]);
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}
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if (data) tb_free(data);
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return res;
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}
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void handle_paths(REQUEST_T req,
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struct session* ssn,
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mastodont_t* api,
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struct path_info* paths,
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size_t paths_len)
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{
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char* path = GET_ENV("PATH_INFO", req);
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// "default" path
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if (path == NULL || (path && strcmp(path, "/") == 0))
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{
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content_index(req, ssn, api);
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}
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else { // Generic path
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for (size_t i = 0; i < paths_len; ++i)
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{
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if (parse_path(req, ssn, api, paths + i) == 0)
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return;
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}
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// Fell out, return 404
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content_not_found(req, ssn, api, path);
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}
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}
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