├── .gitignore ├── README.md ├── gpl-3.0.txt └── src ├── http-client-c.h ├── stringx.h └── urlparser.h /.gitignore: -------------------------------------------------------------------------------- 1 | # Object files 2 | *.o 3 | 4 | # Libraries 5 | *.lib 6 | *.a 7 | 8 | # Shared objects (inc. Windows DLLs) 9 | *.dll 10 | *.so 11 | *.so.* 12 | *.dylib 13 | 14 | # Executables 15 | *.exe 16 | *.out 17 | *.app 18 | 19 | .DS_Store 20 | 21 | src/.DS_Store 22 | 23 | src/test 24 | 25 | src/test.c 26 | 27 | src/test.dSYM/Contents/Info.plist 28 | 29 | src/test.dSYM/Contents/Resources/DWARF/test 30 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ![My image](http://i.imgur.com/bYam0RK.png) 2 | 3 | http-client-c 4 | ============= 5 | 6 | A quick and dirty HTTP client library in and for C. The intention of http-client-c is to write an easy-to-use HTTP client in and for C. 7 | Usage should be easy without hassle but still advanced and easy to control. http-client-c is almost fully comliant with the HTTP 1.1 standards. 8 | http-client-c's code has been optimized to compile perfectly with all known C and C++ compilers. Altough the code is written 9 | in C, it can be used in C++ code as well. 10 | 11 | Basic Usage 12 | =============== 13 | http_response 14 | ------------- 15 | http_response is a structure that is returned by all http_* methods, it contains information about the requse and the response. 16 | Please note that all functions return a pointer to an insance of http_response. The structure is as following: 17 | 18 | struct http_response 19 | { 20 | struct parsed_url *request_uri; 21 | char *body; 22 | char *status_code; 23 | int status_code_int; 24 | char *status_text; 25 | char *request_headers; 26 | char *response_headers; 27 | }; 28 | 29 | #####*request_uri 30 | This is an instance of the parsed_url structure, this contains the request URL and all information about the request 31 | URL. Look up parsed_url for more information. 32 | 33 | #####*body 34 | This contains the response BODY (usually HTML). 35 | 36 | #####*status_code 37 | This contains the HTTP Status code returned by the server in plain text format. 38 | 39 | #####status_code_int 40 | This returns the same as status_code but as an integer. 41 | 42 | #####*status_text 43 | This returns the text associated with the status code. For status code 200, OK will be returned. 44 | 45 | #####*request_headers 46 | This contains the HTTP headers that were used to make the request. 47 | 48 | #####*response_headers 49 | Contains the HTTP headers returned by the server. 50 | 51 | http_req() 52 | ------------- 53 | http_req is the basis for all other http_* methodes and makes and HTTP request and returns an instance of the http_response structure. 54 | 55 | The prototype for this function is: 56 | 57 | struct http_response* http_req(char *http_headers, struct parsed_url *purl) 58 | 59 | A simple example is: 60 | 61 | struct parsed_url *purl = parse_url("http://www.google.com/"); 62 | struct http_response *hrep = http_req("GET / HTTP/1.1\r\nHostname:www.google.com\r\nConnection:close\r\n\r\n", purl); 63 | 64 | Please note that http_req does not handle redirects. (Status code 300-399) 65 | 66 | http_get() 67 | ------------- 68 | Makes an HTTP GET request to the specified URL. This function makes use of the http_req function. It specifies 69 | the minimal headers required, in the second parameter you can specify extra headers. 70 | 71 | The prototype for this function is: 72 | 73 | struct http_response* http_get(char *url, char *custom_headers) 74 | 75 | A simple example is: 76 | 77 | struct http_response *hresp = http_get("http://www.google.com", "User-agent:MyUserAgent\r\n"); 78 | 79 | http_get does handle redirects automaticly. The basic headers used in this method: 80 | 81 | GET / HTTP/1.1 82 | Hostname:www.google.com 83 | Connection:close 84 | 85 | http_post 86 | ------------ 87 | Makes an HTTP POST request to the specified URL. This function makes use of the http_req function. It specifies 88 | the minimal headers required, in the second parameter you can specify extra headers. In the third parameter 89 | the post data can be specified. 90 | 91 | The prototype for this function is: 92 | 93 | struct http_response* http_post(char *url, char *custom_headers, char *post_data) 94 | 95 | A simple example is: 96 | 97 | struct http_response *hresp = http_post("http://mywebsite.com/login.php", "User-agent:MyuserAgent\r\n", "username=Kirk&password=lol123"); 98 | 99 | http_post does handle redirects automaticly. The basic headers used in this method: 100 | 101 | POST /login.php HTTP/1.1 102 | Hostname:mywebsite.com 103 | Connection:close 104 | 105 | username=Kirk&password=lol123 106 | 107 | 108 | -------------------------------------------------------------------------------- /gpl-3.0.txt: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /src/http-client-c.h: -------------------------------------------------------------------------------- 1 | /* 2 | http-client-c 3 | Copyright (C) 2012-2013 Swen Kooij 4 | 5 | This file is part of http-client-c. 6 | 7 | http-client-c is free software: you can redistribute it and/or modify 8 | it under the terms of the GNU General Public License as published by 9 | the Free Software Foundation, either version 3 of the License, or 10 | (at your option) any later version. 11 | 12 | http-client-c is distributed in the hope that it will be useful, 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 | GNU General Public License for more details. 16 | 17 | You should have received a copy of the GNU General Public License 18 | along with http-client-c. If not, see . 19 | 20 | Warning: 21 | This library does not tend to work that stable nor does it fully implent the 22 | standards described by IETF. For more information on the precise implentation of the 23 | Hyper Text Transfer Protocol: 24 | 25 | http://www.ietf.org/rfc/rfc2616.txt 26 | */ 27 | 28 | #pragma GCC diagnostic ignored "-Wwrite-strings" 29 | #include 30 | #include 31 | #include 32 | #include 33 | #ifdef _WIN32 34 | #include 35 | #include 36 | #include 37 | #pragma comment(lib, "Ws2_32.lib") 38 | #elif _LINUX 39 | #include 40 | #elif __FreeBSD__ 41 | #include 42 | #include 43 | #include 44 | #include 45 | #else 46 | #error Platform not suppoted. 47 | #endif 48 | 49 | #include 50 | #include "stringx.h"; 51 | #include "urlparser.h" 52 | 53 | /* 54 | Prototype functions 55 | */ 56 | struct http_response* http_req(char *http_headers, struct parsed_url *purl); 57 | struct http_response* http_get(char *url, char *custom_headers); 58 | struct http_response* http_head(char *url, char *custom_headers); 59 | struct http_response* http_post(char *url, char *custom_headers, char *post_data); 60 | 61 | 62 | /* 63 | Represents an HTTP html response 64 | */ 65 | struct http_response 66 | { 67 | struct parsed_url *request_uri; 68 | char *body; 69 | char *status_code; 70 | int status_code_int; 71 | char *status_text; 72 | char *request_headers; 73 | char *response_headers; 74 | }; 75 | 76 | /* 77 | Handles redirect if needed for get requests 78 | */ 79 | struct http_response* handle_redirect_get(struct http_response* hresp, char* custom_headers) 80 | { 81 | if(hresp->status_code_int > 300 && hresp->status_code_int < 399) 82 | { 83 | char *token = strtok(hresp->response_headers, "\r\n"); 84 | while(token != NULL) 85 | { 86 | if(str_contains(token, "Location:")) 87 | { 88 | /* Extract url */ 89 | char *location = str_replace("Location: ", "", token); 90 | return http_get(location, custom_headers); 91 | } 92 | token = strtok(NULL, "\r\n"); 93 | } 94 | } 95 | else 96 | { 97 | /* We're not dealing with a redirect, just return the same structure */ 98 | return hresp; 99 | } 100 | } 101 | 102 | /* 103 | Handles redirect if needed for head requests 104 | */ 105 | struct http_response* handle_redirect_head(struct http_response* hresp, char* custom_headers) 106 | { 107 | if(hresp->status_code_int > 300 && hresp->status_code_int < 399) 108 | { 109 | char *token = strtok(hresp->response_headers, "\r\n"); 110 | while(token != NULL) 111 | { 112 | if(str_contains(token, "Location:")) 113 | { 114 | /* Extract url */ 115 | char *location = str_replace("Location: ", "", token); 116 | return http_head(location, custom_headers); 117 | } 118 | token = strtok(NULL, "\r\n"); 119 | } 120 | } 121 | else 122 | { 123 | /* We're not dealing with a redirect, just return the same structure */ 124 | return hresp; 125 | } 126 | } 127 | 128 | /* 129 | Handles redirect if needed for post requests 130 | */ 131 | struct http_response* handle_redirect_post(struct http_response* hresp, char* custom_headers, char *post_data) 132 | { 133 | if(hresp->status_code_int > 300 && hresp->status_code_int < 399) 134 | { 135 | char *token = strtok(hresp->response_headers, "\r\n"); 136 | while(token != NULL) 137 | { 138 | if(str_contains(token, "Location:")) 139 | { 140 | /* Extract url */ 141 | char *location = str_replace("Location: ", "", token); 142 | return http_post(location, custom_headers, post_data); 143 | } 144 | token = strtok(NULL, "\r\n"); 145 | } 146 | } 147 | else 148 | { 149 | /* We're not dealing with a redirect, just return the same structure */ 150 | return hresp; 151 | } 152 | } 153 | 154 | /* 155 | Makes a HTTP request and returns the response 156 | */ 157 | struct http_response* http_req(char *http_headers, struct parsed_url *purl) 158 | { 159 | /* Parse url */ 160 | if(purl == NULL) 161 | { 162 | printf("Unable to parse url"); 163 | return NULL; 164 | } 165 | 166 | /* Declare variable */ 167 | int sock; 168 | int tmpres; 169 | char buf[BUFSIZ+1]; 170 | struct sockaddr_in *remote; 171 | 172 | /* Allocate memeory for htmlcontent */ 173 | struct http_response *hresp = (struct http_response*)malloc(sizeof(struct http_response)); 174 | if(hresp == NULL) 175 | { 176 | printf("Unable to allocate memory for htmlcontent."); 177 | return NULL; 178 | } 179 | hresp->body = NULL; 180 | hresp->request_headers = NULL; 181 | hresp->response_headers = NULL; 182 | hresp->status_code = NULL; 183 | hresp->status_text = NULL; 184 | 185 | /* Create TCP socket */ 186 | if((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) 187 | { 188 | printf("Can't create TCP socket"); 189 | return NULL; 190 | } 191 | 192 | /* Set remote->sin_addr.s_addr */ 193 | remote = (struct sockaddr_in *)malloc(sizeof(struct sockaddr_in *)); 194 | remote->sin_family = AF_INET; 195 | tmpres = inet_pton(AF_INET, purl->ip, (void *)(&(remote->sin_addr.s_addr))); 196 | if( tmpres < 0) 197 | { 198 | printf("Can't set remote->sin_addr.s_addr"); 199 | return NULL; 200 | } 201 | else if(tmpres == 0) 202 | { 203 | printf("Not a valid IP"); 204 | return NULL; 205 | } 206 | remote->sin_port = htons(atoi(purl->port)); 207 | 208 | /* Connect */ 209 | if(connect(sock, (struct sockaddr *)remote, sizeof(struct sockaddr)) < 0) 210 | { 211 | printf("Could not connect"); 212 | return NULL; 213 | } 214 | 215 | /* Send headers to server */ 216 | int sent = 0; 217 | while(sent < strlen(http_headers)) 218 | { 219 | tmpres = send(sock, http_headers+sent, strlen(http_headers)-sent, 0); 220 | if(tmpres == -1) 221 | { 222 | printf("Can't send headers"); 223 | return NULL; 224 | } 225 | sent += tmpres; 226 | } 227 | 228 | /* Recieve into response*/ 229 | char *response = (char*)malloc(0); 230 | char BUF[BUFSIZ]; 231 | size_t recived_len = 0; 232 | while((recived_len = recv(sock, BUF, BUFSIZ-1, 0)) > 0) 233 | { 234 | BUF[recived_len] = '\0'; 235 | response = (char*)realloc(response, strlen(response) + strlen(BUF) + 1); 236 | sprintf(response, "%s%s", response, BUF); 237 | } 238 | if (recived_len < 0) 239 | { 240 | free(http_headers); 241 | #ifdef _WIN32 242 | closesocket(sock); 243 | #else 244 | close(sock); 245 | #endif 246 | printf("Unabel to recieve"); 247 | return NULL; 248 | } 249 | 250 | /* Reallocate response */ 251 | response = (char*)realloc(response, strlen(response) + 1); 252 | 253 | /* Close socket */ 254 | #ifdef _WIN32 255 | closesocket(sock); 256 | #else 257 | close(sock); 258 | #endif 259 | 260 | /* Parse status code and text */ 261 | char *status_line = get_until(response, "\r\n"); 262 | status_line = str_replace("HTTP/1.1 ", "", status_line); 263 | char *status_code = str_ndup(status_line, 4); 264 | status_code = str_replace(" ", "", status_code); 265 | char *status_text = str_replace(status_code, "", status_line); 266 | status_text = str_replace(" ", "", status_text); 267 | hresp->status_code = status_code; 268 | hresp->status_code_int = atoi(status_code); 269 | hresp->status_text = status_text; 270 | 271 | /* Parse response headers */ 272 | char *headers = get_until(response, "\r\n\r\n"); 273 | hresp->response_headers = headers; 274 | 275 | /* Assign request headers */ 276 | hresp->request_headers = http_headers; 277 | 278 | /* Assign request url */ 279 | hresp->request_uri = purl; 280 | 281 | /* Parse body */ 282 | char *body = strstr(response, "\r\n\r\n"); 283 | body = str_replace("\r\n\r\n", "", body); 284 | hresp->body = body; 285 | 286 | /* Return response */ 287 | return hresp; 288 | } 289 | 290 | /* 291 | Makes a HTTP GET request to the given url 292 | */ 293 | struct http_response* http_get(char *url, char *custom_headers) 294 | { 295 | /* Parse url */ 296 | struct parsed_url *purl = parse_url(url); 297 | if(purl == NULL) 298 | { 299 | printf("Unable to parse url"); 300 | return NULL; 301 | } 302 | 303 | /* Declare variable */ 304 | char *http_headers = (char*)malloc(1024); 305 | 306 | /* Build query/headers */ 307 | if(purl->path != NULL) 308 | { 309 | if(purl->query != NULL) 310 | { 311 | sprintf(http_headers, "GET /%s?%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->path, purl->query, purl->host); 312 | } 313 | else 314 | { 315 | sprintf(http_headers, "GET /%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->path, purl->host); 316 | } 317 | } 318 | else 319 | { 320 | if(purl->query != NULL) 321 | { 322 | sprintf(http_headers, "GET /?%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->query, purl->host); 323 | } 324 | else 325 | { 326 | sprintf(http_headers, "GET / HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->host); 327 | } 328 | } 329 | 330 | /* Handle authorisation if needed */ 331 | if(purl->username != NULL) 332 | { 333 | /* Format username:password pair */ 334 | char *upwd = (char*)malloc(1024); 335 | sprintf(upwd, "%s:%s", purl->username, purl->password); 336 | upwd = (char*)realloc(upwd, strlen(upwd) + 1); 337 | 338 | /* Base64 encode */ 339 | char *base64 = base64_encode(upwd); 340 | 341 | /* Form header */ 342 | char *auth_header = (char*)malloc(1024); 343 | sprintf(auth_header, "Authorization: Basic %s\r\n", base64); 344 | auth_header = (char*)realloc(auth_header, strlen(auth_header) + 1); 345 | 346 | /* Add to header */ 347 | http_headers = (char*)realloc(http_headers, strlen(http_headers) + strlen(auth_header) + 2); 348 | sprintf(http_headers, "%s%s", http_headers, auth_header); 349 | } 350 | 351 | /* Add custom headers, and close */ 352 | if(custom_headers != NULL) 353 | { 354 | sprintf(http_headers, "%s%s\r\n", http_headers, custom_headers); 355 | } 356 | else 357 | { 358 | sprintf(http_headers, "%s\r\n", http_headers); 359 | } 360 | http_headers = (char*)realloc(http_headers, strlen(http_headers) + 1); 361 | 362 | /* Make request and return response */ 363 | struct http_response *hresp = http_req(http_headers, purl); 364 | 365 | /* Handle redirect */ 366 | return handle_redirect_get(hresp, custom_headers); 367 | } 368 | 369 | /* 370 | Makes a HTTP POST request to the given url 371 | */ 372 | struct http_response* http_post(char *url, char *custom_headers, char *post_data) 373 | { 374 | /* Parse url */ 375 | struct parsed_url *purl = parse_url(url); 376 | if(purl == NULL) 377 | { 378 | printf("Unable to parse url"); 379 | return NULL; 380 | } 381 | 382 | /* Declare variable */ 383 | char *http_headers = (char*)malloc(1024); 384 | 385 | /* Build query/headers */ 386 | if(purl->path != NULL) 387 | { 388 | if(purl->query != NULL) 389 | { 390 | sprintf(http_headers, "POST /%s?%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\nContent-Length:%zu\r\nContent-Type:application/x-www-form-urlencoded\r\n", purl->path, purl->query, purl->host, strlen(post_data)); 391 | } 392 | else 393 | { 394 | sprintf(http_headers, "POST /%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\nContent-Length:%zu\r\nContent-Type:application/x-www-form-urlencoded\r\n", purl->path, purl->host, strlen(post_data)); 395 | } 396 | } 397 | else 398 | { 399 | if(purl->query != NULL) 400 | { 401 | sprintf(http_headers, "POST /?%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\nContent-Length:%zu\r\nContent-Type:application/x-www-form-urlencoded\r\n", purl->query, purl->host, strlen(post_data)); 402 | } 403 | else 404 | { 405 | sprintf(http_headers, "POST / HTTP/1.1\r\nHost:%s\r\nConnection:close\r\nContent-Length:%zu\r\nContent-Type:application/x-www-form-urlencoded\r\n", purl->host, strlen(post_data)); 406 | } 407 | } 408 | 409 | /* Handle authorisation if needed */ 410 | if(purl->username != NULL) 411 | { 412 | /* Format username:password pair */ 413 | char *upwd = (char*)malloc(1024); 414 | sprintf(upwd, "%s:%s", purl->username, purl->password); 415 | upwd = (char*)realloc(upwd, strlen(upwd) + 1); 416 | 417 | /* Base64 encode */ 418 | char *base64 = base64_encode(upwd); 419 | 420 | /* Form header */ 421 | char *auth_header = (char*)malloc(1024); 422 | sprintf(auth_header, "Authorization: Basic %s\r\n", base64); 423 | auth_header = (char*)realloc(auth_header, strlen(auth_header) + 1); 424 | 425 | /* Add to header */ 426 | http_headers = (char*)realloc(http_headers, strlen(http_headers) + strlen(auth_header) + 2); 427 | sprintf(http_headers, "%s%s", http_headers, auth_header); 428 | } 429 | 430 | if(custom_headers != NULL) 431 | { 432 | sprintf(http_headers, "%s%s\r\n", http_headers, custom_headers); 433 | sprintf(http_headers, "%s\r\n%s", http_headers, post_data); 434 | } 435 | else 436 | { 437 | sprintf(http_headers, "%s\r\n%s", http_headers, post_data); 438 | } 439 | http_headers = (char*)realloc(http_headers, strlen(http_headers) + 1); 440 | 441 | /* Make request and return response */ 442 | struct http_response *hresp = http_req(http_headers, purl); 443 | 444 | /* Handle redirect */ 445 | return handle_redirect_post(hresp, custom_headers, post_data); 446 | } 447 | 448 | /* 449 | Makes a HTTP HEAD request to the given url 450 | */ 451 | struct http_response* http_head(char *url, char *custom_headers) 452 | { 453 | /* Parse url */ 454 | struct parsed_url *purl = parse_url(url); 455 | if(purl == NULL) 456 | { 457 | printf("Unable to parse url"); 458 | return NULL; 459 | } 460 | 461 | /* Declare variable */ 462 | char *http_headers = (char*)malloc(1024); 463 | 464 | /* Build query/headers */ 465 | if(purl->path != NULL) 466 | { 467 | if(purl->query != NULL) 468 | { 469 | sprintf(http_headers, "HEAD /%s?%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->path, purl->query, purl->host); 470 | } 471 | else 472 | { 473 | sprintf(http_headers, "HEAD /%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->path, purl->host); 474 | } 475 | } 476 | else 477 | { 478 | if(purl->query != NULL) 479 | { 480 | sprintf(http_headers, "HEAD/?%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->query, purl->host); 481 | } 482 | else 483 | { 484 | sprintf(http_headers, "HEAD / HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->host); 485 | } 486 | } 487 | 488 | /* Handle authorisation if needed */ 489 | if(purl->username != NULL) 490 | { 491 | /* Format username:password pair */ 492 | char *upwd = (char*)malloc(1024); 493 | sprintf(upwd, "%s:%s", purl->username, purl->password); 494 | upwd = (char*)realloc(upwd, strlen(upwd) + 1); 495 | 496 | /* Base64 encode */ 497 | char *base64 = base64_encode(upwd); 498 | 499 | /* Form header */ 500 | char *auth_header = (char*)malloc(1024); 501 | sprintf(auth_header, "Authorization: Basic %s\r\n", base64); 502 | auth_header = (char*)realloc(auth_header, strlen(auth_header) + 1); 503 | 504 | /* Add to header */ 505 | http_headers = (char*)realloc(http_headers, strlen(http_headers) + strlen(auth_header) + 2); 506 | sprintf(http_headers, "%s%s", http_headers, auth_header); 507 | } 508 | 509 | if(custom_headers != NULL) 510 | { 511 | sprintf(http_headers, "%s%s\r\n", http_headers, custom_headers); 512 | } 513 | else 514 | { 515 | sprintf(http_headers, "%s\r\n", http_headers); 516 | } 517 | http_headers = (char*)realloc(http_headers, strlen(http_headers) + 1); 518 | 519 | /* Make request and return response */ 520 | struct http_response *hresp = http_req(http_headers, purl); 521 | 522 | /* Handle redirect */ 523 | return handle_redirect_head(hresp, custom_headers); 524 | } 525 | 526 | /* 527 | Do HTTP OPTIONs requests 528 | */ 529 | struct http_response* http_options(char *url) 530 | { 531 | /* Parse url */ 532 | struct parsed_url *purl = parse_url(url); 533 | if(purl == NULL) 534 | { 535 | printf("Unable to parse url"); 536 | return NULL; 537 | } 538 | 539 | /* Declare variable */ 540 | char *http_headers = (char*)malloc(1024); 541 | 542 | /* Build query/headers */ 543 | if(purl->path != NULL) 544 | { 545 | if(purl->query != NULL) 546 | { 547 | sprintf(http_headers, "OPTIONS /%s?%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->path, purl->query, purl->host); 548 | } 549 | else 550 | { 551 | sprintf(http_headers, "OPTIONS /%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->path, purl->host); 552 | } 553 | } 554 | else 555 | { 556 | if(purl->query != NULL) 557 | { 558 | sprintf(http_headers, "OPTIONS/?%s HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->query, purl->host); 559 | } 560 | else 561 | { 562 | sprintf(http_headers, "OPTIONS / HTTP/1.1\r\nHost:%s\r\nConnection:close\r\n", purl->host); 563 | } 564 | } 565 | 566 | /* Handle authorisation if needed */ 567 | if(purl->username != NULL) 568 | { 569 | /* Format username:password pair */ 570 | char *upwd = (char*)malloc(1024); 571 | sprintf(upwd, "%s:%s", purl->username, purl->password); 572 | upwd = (char*)realloc(upwd, strlen(upwd) + 1); 573 | 574 | /* Base64 encode */ 575 | char *base64 = base64_encode(upwd); 576 | 577 | /* Form header */ 578 | char *auth_header = (char*)malloc(1024); 579 | sprintf(auth_header, "Authorization: Basic %s\r\n", base64); 580 | auth_header = (char*)realloc(auth_header, strlen(auth_header) + 1); 581 | 582 | /* Add to header */ 583 | http_headers = (char*)realloc(http_headers, strlen(http_headers) + strlen(auth_header) + 2); 584 | sprintf(http_headers, "%s%s", http_headers, auth_header); 585 | } 586 | 587 | /* Build headers */ 588 | sprintf(http_headers, "%s\r\n", http_headers); 589 | http_headers = (char*)realloc(http_headers, strlen(http_headers) + 1); 590 | 591 | /* Make request and return response */ 592 | struct http_response *hresp = http_req(http_headers, purl); 593 | 594 | /* Handle redirect */ 595 | return hresp; 596 | } 597 | 598 | /* 599 | Free memory of http_response 600 | */ 601 | void http_response_free(struct http_response *hresp) 602 | { 603 | if(hresp != NULL) 604 | { 605 | if(hresp->request_uri != NULL) parsed_url_free(hresp->request_uri); 606 | if(hresp->body != NULL) free(hresp->body); 607 | if(hresp->status_code != NULL) free(hresp->status_code); 608 | if(hresp->status_text != NULL) free(hresp->status_text); 609 | if(hresp->request_headers != NULL) free(hresp->request_headers); 610 | if(hresp->response_headers != NULL) free(hresp->response_headers); 611 | free(hresp); 612 | } 613 | } 614 | -------------------------------------------------------------------------------- /src/stringx.h: -------------------------------------------------------------------------------- 1 | /* 2 | http-client-c 3 | Copyright (C) 2012-2013 Swen Kooij 4 | 5 | This file is part of http-client-c. 6 | 7 | http-client-c is free software: you can redistribute it and/or modify 8 | it under the terms of the GNU General Public License as published by 9 | the Free Software Foundation, either version 3 of the License, or 10 | (at your option) any later version. 11 | 12 | http-client-c is distributed in the hope that it will be useful, 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 | GNU General Public License for more details. 16 | 17 | You should have received a copy of the GNU General Public License 18 | along with http-client-c. If not, see . 19 | 20 | Warning: 21 | This library does not tend to work that stable nor does it fully implent the 22 | standards described by IETF. For more information on the precise implentation of the 23 | Hyper Text Transfer Protocol: 24 | 25 | http://www.ietf.org/rfc/rfc2616.txt 26 | */ 27 | 28 | #include 29 | #include 30 | #include 31 | 32 | #ifdef __cplusplus 33 | #include 34 | #endif 35 | 36 | /* 37 | Gets the offset of one string in another string 38 | */ 39 | int str_index_of(const char *a, char *b) 40 | { 41 | char *offset = (char*)strstr(a, b); 42 | return offset - a; 43 | } 44 | 45 | /* 46 | Checks if one string contains another string 47 | */ 48 | int str_contains(const char *haystack, const char *needle) 49 | { 50 | char *pos = (char*)strstr(haystack, needle); 51 | if(pos) 52 | return 1; 53 | else 54 | return 0; 55 | } 56 | 57 | /* 58 | Removes last character from string 59 | */ 60 | char* trim_end(char *string, char to_trim) 61 | { 62 | char last_char = string[strlen(string) -1]; 63 | if(last_char == to_trim) 64 | { 65 | char *new_string = string; 66 | new_string[strlen(string) - 1] = 0; 67 | return new_string; 68 | } 69 | else 70 | { 71 | return string; 72 | } 73 | } 74 | 75 | /* 76 | Concecates two strings, a wrapper for strcat from string.h, handles the resizing and copying 77 | */ 78 | char* str_cat(char *a, char *b) 79 | { 80 | char *target = (char*)malloc(strlen(a) + strlen(b) + 1); 81 | strcpy(target, a); 82 | strcat(target, b); 83 | return target; 84 | } 85 | 86 | /* 87 | Converts an integer value to its hex character 88 | */ 89 | char to_hex(char code) 90 | { 91 | static char hex[] = "0123456789abcdef"; 92 | return hex[code & 15]; 93 | } 94 | 95 | /* 96 | URL encodes a string 97 | */ 98 | char *urlencode(char *str) 99 | { 100 | char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf; 101 | while (*pstr) 102 | { 103 | if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~') 104 | *pbuf++ = *pstr; 105 | else if (*pstr == ' ') 106 | *pbuf++ = '+'; 107 | else 108 | *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15); 109 | pstr++; 110 | } 111 | *pbuf = '\0'; 112 | return buf; 113 | } 114 | 115 | /* 116 | Replacement for the string.h strndup, fixes a bug 117 | */ 118 | char *str_ndup (const char *str, size_t max) 119 | { 120 | size_t len = strnlen (str, max); 121 | char *res = (char*)malloc (len + 1); 122 | if (res) 123 | { 124 | memcpy (res, str, len); 125 | res[len] = '\0'; 126 | } 127 | return res; 128 | } 129 | 130 | /* 131 | Replacement for the string.h strdup, fixes a bug 132 | */ 133 | char *str_dup(const char *src) 134 | { 135 | char *tmp = (char*)malloc(strlen(src) + 1); 136 | if(tmp) 137 | strcpy(tmp, src); 138 | return tmp; 139 | } 140 | 141 | /* 142 | Search and replace a string with another string , in a string 143 | */ 144 | char *str_replace(char *search , char *replace , char *subject) 145 | { 146 | char *p = NULL , *old = NULL , *new_subject = NULL ; 147 | int c = 0 , search_size; 148 | search_size = strlen(search); 149 | for(p = strstr(subject , search) ; p != NULL ; p = strstr(p + search_size , search)) 150 | { 151 | c++; 152 | } 153 | c = ( strlen(replace) - search_size )*c + strlen(subject); 154 | new_subject = (char*)malloc( c ); 155 | strcpy(new_subject , ""); 156 | old = subject; 157 | for(p = strstr(subject , search) ; p != NULL ; p = strstr(p + search_size , search)) 158 | { 159 | strncpy(new_subject + strlen(new_subject) , old , p - old); 160 | strcpy(new_subject + strlen(new_subject) , replace); 161 | old = p + search_size; 162 | } 163 | strcpy(new_subject + strlen(new_subject) , old); 164 | return new_subject; 165 | } 166 | 167 | /* 168 | Get's all characters until '*until' has been found 169 | */ 170 | char* get_until(char *haystack, char *until) 171 | { 172 | int offset = str_index_of(haystack, until); 173 | return str_ndup(haystack, offset); 174 | } 175 | 176 | 177 | /* decodeblock - decode 4 '6-bit' characters into 3 8-bit binary bytes */ 178 | void decodeblock(unsigned char in[], char *clrstr) 179 | { 180 | unsigned char out[4]; 181 | out[0] = in[0] << 2 | in[1] >> 4; 182 | out[1] = in[1] << 4 | in[2] >> 2; 183 | out[2] = in[2] << 6 | in[3] >> 0; 184 | out[3] = '\0'; 185 | strncat((char *)clrstr, (char *)out, sizeof(out)); 186 | } 187 | 188 | /* 189 | Decodes a Base64 string 190 | */ 191 | char* base64_decode(char *b64src) 192 | { 193 | char *clrdst = (char*)malloc( ((strlen(b64src) - 1) / 3 ) * 4 + 4 + 50); 194 | char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; 195 | int c, phase, i; 196 | unsigned char in[4]; 197 | char *p; 198 | clrdst[0] = '\0'; 199 | phase = 0; i=0; 200 | while(b64src[i]) 201 | { 202 | c = (int) b64src[i]; 203 | if(c == '=') 204 | { 205 | decodeblock(in, clrdst); 206 | break; 207 | } 208 | p = strchr(b64, c); 209 | if(p) 210 | { 211 | in[phase] = p - b64; 212 | phase = (phase + 1) % 4; 213 | if(phase == 0) 214 | { 215 | decodeblock(in, clrdst); 216 | in[0]=in[1]=in[2]=in[3]=0; 217 | } 218 | } 219 | i++; 220 | } 221 | clrdst = (char*)realloc(clrdst, strlen(clrdst) + 1); 222 | return clrdst; 223 | } 224 | 225 | /* encodeblock - encode 3 8-bit binary bytes as 4 '6-bit' characters */ 226 | void encodeblock( unsigned char in[], char b64str[], int len ) 227 | { 228 | char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; 229 | unsigned char out[5]; 230 | out[0] = b64[ in[0] >> 2 ]; 231 | out[1] = b64[ ((in[0] & 0x03) << 4) | ((in[1] & 0xf0) >> 4) ]; 232 | out[2] = (unsigned char) (len > 1 ? b64[ ((in[1] & 0x0f) << 2) | 233 | ((in[2] & 0xc0) >> 6) ] : '='); 234 | out[3] = (unsigned char) (len > 2 ? b64[ in[2] & 0x3f ] : '='); 235 | out[4] = '\0'; 236 | strncat((char *)b64str, (char *)out, sizeof(out)); 237 | } 238 | 239 | /* 240 | Encodes a string with Base64 241 | */ 242 | char* base64_encode(char *clrstr) 243 | { 244 | char *b64dst = (char*)malloc(strlen(clrstr) + 50); 245 | char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; 246 | unsigned char in[3]; 247 | int i, len = 0; 248 | int j = 0; 249 | 250 | b64dst[0] = '\0'; 251 | while(clrstr[j]) 252 | { 253 | len = 0; 254 | for(i=0; i<3; i++) 255 | { 256 | in[i] = (unsigned char) clrstr[j]; 257 | if(clrstr[j]) 258 | { 259 | len++; j++; 260 | } 261 | else in[i] = 0; 262 | } 263 | if( len ) 264 | { 265 | encodeblock( in, b64dst, len ); 266 | } 267 | } 268 | b64dst = (char*)realloc(b64dst, strlen(b64dst) + 1); 269 | return b64dst; 270 | } 271 | -------------------------------------------------------------------------------- /src/urlparser.h: -------------------------------------------------------------------------------- 1 | /* 2 | http-client-c 3 | Copyright (C) 2012-2013 Swen Kooij 4 | 5 | This file is part of http-client-c. 6 | 7 | http-client-c is free software: you can redistribute it and/or modify 8 | it under the terms of the GNU General Public License as published by 9 | the Free Software Foundation, either version 3 of the License, or 10 | (at your option) any later version. 11 | 12 | http-client-c is distributed in the hope that it will be useful, 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 | GNU General Public License for more details. 16 | 17 | You should have received a copy of the GNU General Public License 18 | along with http-client-c. If not, see . 19 | 20 | Warning: 21 | This library does not tend to work that stable nor does it fully implent the 22 | standards described by IETF. For more information on the precise implentation of the 23 | Hyper Text Transfer Protocol: 24 | 25 | http://www.ietf.org/rfc/rfc2616.txt 26 | */ 27 | 28 | /* 29 | Represents an url 30 | */ 31 | struct parsed_url 32 | { 33 | char *uri; /* mandatory */ 34 | char *scheme; /* mandatory */ 35 | char *host; /* mandatory */ 36 | char *ip; /* mandatory */ 37 | char *port; /* optional */ 38 | char *path; /* optional */ 39 | char *query; /* optional */ 40 | char *fragment; /* optional */ 41 | char *username; /* optional */ 42 | char *password; /* optional */ 43 | }; 44 | 45 | /* 46 | Free memory of parsed url 47 | */ 48 | void parsed_url_free(struct parsed_url *purl) 49 | { 50 | if ( NULL != purl ) 51 | { 52 | if ( NULL != purl->scheme ) free(purl->scheme); 53 | if ( NULL != purl->host ) free(purl->host); 54 | if ( NULL != purl->port ) free(purl->port); 55 | if ( NULL != purl->path ) free(purl->path); 56 | if ( NULL != purl->query ) free(purl->query); 57 | if ( NULL != purl->fragment ) free(purl->fragment); 58 | if ( NULL != purl->username ) free(purl->username); 59 | if ( NULL != purl->password ) free(purl->password); 60 | free(purl); 61 | } 62 | } 63 | 64 | /* 65 | Retrieves the IP adress of a hostname 66 | */ 67 | char* hostname_to_ip(char *hostname) 68 | { 69 | char *ip = "0.0.0.0"; 70 | struct hostent *h; 71 | if ((h=gethostbyname(hostname)) == NULL) 72 | { 73 | printf("gethostbyname"); 74 | return NULL; 75 | } 76 | return inet_ntoa(*((struct in_addr *)h->h_addr)); 77 | } 78 | 79 | /* 80 | Check whether the character is permitted in scheme string 81 | */ 82 | int is_scheme_char(int c) 83 | { 84 | return (!isalpha(c) && '+' != c && '-' != c && '.' != c) ? 0 : 1; 85 | } 86 | 87 | /* 88 | Parses a specified URL and returns the structure named 'parsed_url' 89 | Implented according to: 90 | RFC 1738 - http://www.ietf.org/rfc/rfc1738.txt 91 | RFC 3986 - http://www.ietf.org/rfc/rfc3986.txt 92 | */ 93 | struct parsed_url *parse_url(const char *url) 94 | { 95 | 96 | /* Define variable */ 97 | struct parsed_url *purl; 98 | const char *tmpstr; 99 | const char *curstr; 100 | int len; 101 | int i; 102 | int userpass_flag; 103 | int bracket_flag; 104 | 105 | /* Allocate the parsed url storage */ 106 | purl = (struct parsed_url*)malloc(sizeof(struct parsed_url)); 107 | if ( NULL == purl ) 108 | { 109 | return NULL; 110 | } 111 | purl->scheme = NULL; 112 | purl->host = NULL; 113 | purl->port = NULL; 114 | purl->path = NULL; 115 | purl->query = NULL; 116 | purl->fragment = NULL; 117 | purl->username = NULL; 118 | purl->password = NULL; 119 | curstr = url; 120 | 121 | /* 122 | * : 123 | * := [a-z\+\-\.]+ 124 | * upper case = lower case for resiliency 125 | */ 126 | /* Read scheme */ 127 | tmpstr = strchr(curstr, ':'); 128 | if ( NULL == tmpstr ) 129 | { 130 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 131 | 132 | return NULL; 133 | } 134 | 135 | /* Get the scheme length */ 136 | len = tmpstr - curstr; 137 | 138 | /* Check restrictions */ 139 | for ( i = 0; i < len; i++ ) 140 | { 141 | if (is_scheme_char(curstr[i]) == 0) 142 | { 143 | /* Invalid format */ 144 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 145 | return NULL; 146 | } 147 | } 148 | /* Copy the scheme to the storage */ 149 | purl->scheme = (char*)malloc(sizeof(char) * (len + 1)); 150 | if ( NULL == purl->scheme ) 151 | { 152 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 153 | 154 | return NULL; 155 | } 156 | 157 | (void)strncpy(purl->scheme, curstr, len); 158 | purl->scheme[len] = '\0'; 159 | 160 | /* Make the character to lower if it is upper case. */ 161 | for ( i = 0; i < len; i++ ) 162 | { 163 | purl->scheme[i] = tolower(purl->scheme[i]); 164 | } 165 | 166 | /* Skip ':' */ 167 | tmpstr++; 168 | curstr = tmpstr; 169 | 170 | /* 171 | * //:@:/ 172 | * Any ":", "@" and "/" must be encoded. 173 | */ 174 | /* Eat "//" */ 175 | for ( i = 0; i < 2; i++ ) 176 | { 177 | if ( '/' != *curstr ) 178 | { 179 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 180 | return NULL; 181 | } 182 | curstr++; 183 | } 184 | 185 | /* Check if the user (and password) are specified. */ 186 | userpass_flag = 0; 187 | tmpstr = curstr; 188 | while ( '\0' != *tmpstr ) 189 | { 190 | if ( '@' == *tmpstr ) 191 | { 192 | /* Username and password are specified */ 193 | userpass_flag = 1; 194 | break; 195 | } 196 | else if ( '/' == *tmpstr ) 197 | { 198 | /* End of : specification */ 199 | userpass_flag = 0; 200 | break; 201 | } 202 | tmpstr++; 203 | } 204 | 205 | /* User and password specification */ 206 | tmpstr = curstr; 207 | if ( userpass_flag ) 208 | { 209 | /* Read username */ 210 | while ( '\0' != *tmpstr && ':' != *tmpstr && '@' != *tmpstr ) 211 | { 212 | tmpstr++; 213 | } 214 | len = tmpstr - curstr; 215 | purl->username = (char*)malloc(sizeof(char) * (len + 1)); 216 | if ( NULL == purl->username ) 217 | { 218 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 219 | return NULL; 220 | } 221 | (void)strncpy(purl->username, curstr, len); 222 | purl->username[len] = '\0'; 223 | 224 | /* Proceed current pointer */ 225 | curstr = tmpstr; 226 | if ( ':' == *curstr ) 227 | { 228 | /* Skip ':' */ 229 | curstr++; 230 | 231 | /* Read password */ 232 | tmpstr = curstr; 233 | while ( '\0' != *tmpstr && '@' != *tmpstr ) 234 | { 235 | tmpstr++; 236 | } 237 | len = tmpstr - curstr; 238 | purl->password = (char*)malloc(sizeof(char) * (len + 1)); 239 | if ( NULL == purl->password ) 240 | { 241 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 242 | return NULL; 243 | } 244 | (void)strncpy(purl->password, curstr, len); 245 | purl->password[len] = '\0'; 246 | curstr = tmpstr; 247 | } 248 | /* Skip '@' */ 249 | if ( '@' != *curstr ) 250 | { 251 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 252 | return NULL; 253 | } 254 | curstr++; 255 | } 256 | 257 | if ( '[' == *curstr ) 258 | { 259 | bracket_flag = 1; 260 | } 261 | else 262 | { 263 | bracket_flag = 0; 264 | } 265 | /* Proceed on by delimiters with reading host */ 266 | tmpstr = curstr; 267 | while ( '\0' != *tmpstr ) { 268 | if ( bracket_flag && ']' == *tmpstr ) 269 | { 270 | /* End of IPv6 address. */ 271 | tmpstr++; 272 | break; 273 | } 274 | else if ( !bracket_flag && (':' == *tmpstr || '/' == *tmpstr) ) 275 | { 276 | /* Port number is specified. */ 277 | break; 278 | } 279 | tmpstr++; 280 | } 281 | len = tmpstr - curstr; 282 | purl->host = (char*)malloc(sizeof(char) * (len + 1)); 283 | if ( NULL == purl->host || len <= 0 ) 284 | { 285 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 286 | return NULL; 287 | } 288 | (void)strncpy(purl->host, curstr, len); 289 | purl->host[len] = '\0'; 290 | curstr = tmpstr; 291 | 292 | /* Is port number specified? */ 293 | if ( ':' == *curstr ) 294 | { 295 | curstr++; 296 | /* Read port number */ 297 | tmpstr = curstr; 298 | while ( '\0' != *tmpstr && '/' != *tmpstr ) 299 | { 300 | tmpstr++; 301 | } 302 | len = tmpstr - curstr; 303 | purl->port = (char*)malloc(sizeof(char) * (len + 1)); 304 | if ( NULL == purl->port ) 305 | { 306 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 307 | return NULL; 308 | } 309 | (void)strncpy(purl->port, curstr, len); 310 | purl->port[len] = '\0'; 311 | curstr = tmpstr; 312 | } 313 | else 314 | { 315 | purl->port = "80"; 316 | } 317 | 318 | /* Get ip */ 319 | char *ip = hostname_to_ip(purl->host); 320 | purl->ip = ip; 321 | 322 | /* Set uri */ 323 | purl->uri = (char*)url; 324 | 325 | /* End of the string */ 326 | if ( '\0' == *curstr ) 327 | { 328 | return purl; 329 | } 330 | 331 | /* Skip '/' */ 332 | if ( '/' != *curstr ) 333 | { 334 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 335 | return NULL; 336 | } 337 | curstr++; 338 | 339 | /* Parse path */ 340 | tmpstr = curstr; 341 | while ( '\0' != *tmpstr && '#' != *tmpstr && '?' != *tmpstr ) 342 | { 343 | tmpstr++; 344 | } 345 | len = tmpstr - curstr; 346 | purl->path = (char*)malloc(sizeof(char) * (len + 1)); 347 | if ( NULL == purl->path ) 348 | { 349 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 350 | return NULL; 351 | } 352 | (void)strncpy(purl->path, curstr, len); 353 | purl->path[len] = '\0'; 354 | curstr = tmpstr; 355 | 356 | /* Is query specified? */ 357 | if ( '?' == *curstr ) 358 | { 359 | /* Skip '?' */ 360 | curstr++; 361 | /* Read query */ 362 | tmpstr = curstr; 363 | while ( '\0' != *tmpstr && '#' != *tmpstr ) 364 | { 365 | tmpstr++; 366 | } 367 | len = tmpstr - curstr; 368 | purl->query = (char*)malloc(sizeof(char) * (len + 1)); 369 | if ( NULL == purl->query ) 370 | { 371 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 372 | return NULL; 373 | } 374 | (void)strncpy(purl->query, curstr, len); 375 | purl->query[len] = '\0'; 376 | curstr = tmpstr; 377 | } 378 | 379 | /* Is fragment specified? */ 380 | if ( '#' == *curstr ) 381 | { 382 | /* Skip '#' */ 383 | curstr++; 384 | /* Read fragment */ 385 | tmpstr = curstr; 386 | while ( '\0' != *tmpstr ) 387 | { 388 | tmpstr++; 389 | } 390 | len = tmpstr - curstr; 391 | purl->fragment = (char*)malloc(sizeof(char) * (len + 1)); 392 | if ( NULL == purl->fragment ) 393 | { 394 | parsed_url_free(purl); fprintf(stderr, "Error on line %d (%s)\n", __LINE__, __FILE__); 395 | return NULL; 396 | } 397 | (void)strncpy(purl->fragment, curstr, len); 398 | purl->fragment[len] = '\0'; 399 | curstr = tmpstr; 400 | } 401 | return purl; 402 | } --------------------------------------------------------------------------------