diff options
Diffstat (limited to 'src/oauth_http.c')
| -rw-r--r-- | src/oauth_http.c | 728 |
1 files changed, 728 insertions, 0 deletions
diff --git a/src/oauth_http.c b/src/oauth_http.c new file mode 100644 index 0000000..0e06b10 --- /dev/null +++ b/src/oauth_http.c @@ -0,0 +1,728 @@ +/* + * OAuth http functions in POSIX-C. + * + * Copyright 2007, 2008, 2009, 2010 Robin Gareus <robin@gareus.org> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + */ +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdio.h> +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> + +#ifdef WIN32 +# define snprintf _snprintf +#endif + +#include "xmalloc.h" +#include "oauth.h" + +#define OAUTH_USER_AGENT "liboauth-agent/" VERSION + +#ifdef HAVE_CURL /* HTTP requests via libcurl */ +#include <curl/curl.h> +#include <sys/stat.h> + +# define GLOBAL_CURL_ENVIROMENT_OPTIONS \ + if (getenv("CURLOPT_PROXYAUTH")){ \ + curl_easy_setopt(curl, CURLOPT_PROXYAUTH, CURLAUTH_ANY); \ + } \ + if (getenv("CURLOPT_SSL_VERIFYPEER")){ \ + curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, (long) atol(getenv("CURLOPT_SSL_VERIFYPEER")) ); \ + } \ + if (getenv("CURLOPT_CAINFO")){ \ + curl_easy_setopt(curl, CURLOPT_CAINFO, getenv("CURLOPT_CAINFO") ); \ + } \ + if (getenv("CURLOPT_FOLLOWLOCATION")){ \ + curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, (long) atol(getenv("CURLOPT_FOLLOWLOCATION")) ); \ + } \ + if (getenv("CURLOPT_FAILONERROR")){ \ + curl_easy_setopt(curl, CURLOPT_FAILONERROR, (long) atol(getenv("CURLOPT_FAILONERROR")) ); \ + } + +struct MemoryStruct { + char *data; + size_t size; //< bytes remaining (r), bytes accumulated (w) + + size_t start_size; //< only used with ..AndCall() + void (*callback)(void*,int,size_t,size_t); //< only used with ..AndCall() + void *callback_data; //< only used with ..AndCall() +}; + +static size_t +WriteMemoryCallback(void *ptr, size_t size, size_t nmemb, void *data) { + size_t realsize = size * nmemb; + struct MemoryStruct *mem = (struct MemoryStruct *)data; + + mem->data = (char *)xrealloc(mem->data, mem->size + realsize + 1); + if (mem->data) { + memcpy(&(mem->data[mem->size]), ptr, realsize); + mem->size += realsize; + mem->data[mem->size] = 0; + } + return realsize; +} + +static size_t +ReadMemoryCallback(void *ptr, size_t size, size_t nmemb, void *data) { + struct MemoryStruct *mem = (struct MemoryStruct *)data; + size_t realsize = size * nmemb; + if (realsize > mem->size) realsize = mem->size; + memcpy(ptr, mem->data, realsize); + mem->size -= realsize; + mem->data += realsize; + return realsize; +} + +static size_t +WriteMemoryCallbackAndCall(void *ptr, size_t size, size_t nmemb, void *data) { + struct MemoryStruct *mem = (struct MemoryStruct *)data; + size_t ret=WriteMemoryCallback(ptr,size,nmemb,data); + mem->callback(mem->callback_data,0,mem->size,mem->size); + return ret; +} + +static size_t +ReadMemoryCallbackAndCall(void *ptr, size_t size, size_t nmemb, void *data) { + struct MemoryStruct *mem = (struct MemoryStruct *)data; + size_t ret=ReadMemoryCallback(ptr,size,nmemb,data); + mem->callback(mem->callback_data,1,mem->start_size-mem->size,mem->start_size); + return ret; +} + +/** + * cURL http post function. + * the returned string (if not NULL) needs to be freed by the caller + * + * @param u url to retrieve + * @param p post parameters + * @param customheader specify custom HTTP header (or NULL for none) + * @return returned HTTP + */ +char *oauth_curl_post (const char *u, const char *p, const char *customheader) { + CURL *curl; + CURLcode res; + struct curl_slist *slist=NULL; + + struct MemoryStruct chunk; + chunk.data=NULL; + chunk.size = 0; + + curl = curl_easy_init(); + if(!curl) return NULL; + curl_easy_setopt(curl, CURLOPT_URL, u); + curl_easy_setopt(curl, CURLOPT_POSTFIELDS, p); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); + if (customheader) { + slist = curl_slist_append(slist, customheader); + curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist); + } + curl_easy_setopt(curl, CURLOPT_USERAGENT, OAUTH_USER_AGENT); +#ifdef OAUTH_CURL_TIMEOUT + curl_easy_setopt(curl, CURLOPT_TIMEOUT, OAUTH_CURL_TIMEOUT); + curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); +#endif + GLOBAL_CURL_ENVIROMENT_OPTIONS; + res = curl_easy_perform(curl); + curl_slist_free_all(slist); + if (res) { + return NULL; + } + + curl_easy_cleanup(curl); + return (chunk.data); +} + +/** + * cURL http get function. + * the returned string (if not NULL) needs to be freed by the caller + * + * @param u url to retrieve + * @param q optional query parameters + * @param customheader specify custom HTTP header (or NULL for none) + * @return returned HTTP + */ +char *oauth_curl_get (const char *u, const char *q, const char *customheader) { + CURL *curl; + CURLcode res; + struct curl_slist *slist=NULL; + char *t1=NULL; + struct MemoryStruct chunk; + + if (q) { + t1=(char*)xmalloc(sizeof(char)*(strlen(u)+strlen(q)+2)); + strcpy(t1,u); strcat(t1,"?"); strcat(t1,q); + } + + chunk.data=NULL; + chunk.size = 0; + + curl = curl_easy_init(); + if(!curl) return NULL; + curl_easy_setopt(curl, CURLOPT_URL, q?t1:u); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); + if (customheader) { + slist = curl_slist_append(slist, customheader); + curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist); + } +#if 0 // TODO - support request methods.. + if (0) + curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "HEAD"); + else if (0) + curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE"); +#endif + curl_easy_setopt(curl, CURLOPT_USERAGENT, OAUTH_USER_AGENT); +#ifdef OAUTH_CURL_TIMEOUT + curl_easy_setopt(curl, CURLOPT_TIMEOUT, OAUTH_CURL_TIMEOUT); + curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); +#endif + GLOBAL_CURL_ENVIROMENT_OPTIONS; + res = curl_easy_perform(curl); + curl_slist_free_all(slist); + if (q) free(t1); + curl_easy_cleanup(curl); + + if (res) { + return NULL; + } + return (chunk.data); +} + +/** + * cURL http post raw data from file. + * the returned string needs to be freed by the caller + * + * @param u url to retrieve + * @param fn filename of the file to post along + * @param len length of the file in bytes. set to '0' for autodetection + * @param customheader specify custom HTTP header (or NULL for default) + * @return returned HTTP or NULL on error + */ +char *oauth_curl_post_file (const char *u, const char *fn, size_t len, const char *customheader) { + CURL *curl; + CURLcode res; + struct curl_slist *slist=NULL; + struct MemoryStruct chunk; + FILE *f; + + chunk.data=NULL; + chunk.size=0; + + if (customheader) + slist = curl_slist_append(slist, customheader); + else + slist = curl_slist_append(slist, "Content-Type: image/jpeg;"); + + if (!len) { + struct stat statbuf; + if (stat(fn, &statbuf) == -1) return(NULL); + len = statbuf.st_size; + } + + f = fopen(fn,"r"); + if (!f) return NULL; + + curl = curl_easy_init(); + if(!curl) return NULL; + curl_easy_setopt(curl, CURLOPT_URL, u); + curl_easy_setopt(curl, CURLOPT_POST, 1); + curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, len); + curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist); + curl_easy_setopt(curl, CURLOPT_READDATA, f); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); + curl_easy_setopt(curl, CURLOPT_USERAGENT, OAUTH_USER_AGENT); +#ifdef OAUTH_CURL_TIMEOUT + curl_easy_setopt(curl, CURLOPT_TIMEOUT, OAUTH_CURL_TIMEOUT); + curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); +#endif + GLOBAL_CURL_ENVIROMENT_OPTIONS; + res = curl_easy_perform(curl); + curl_slist_free_all(slist); + if (res) { + // error + return NULL; + } + fclose(f); + + curl_easy_cleanup(curl); + return (chunk.data); +} + +/** + * http send raw data, with callback. + * the returned string needs to be freed by the caller + * + * more documentation in oauth.h + * + * @param u url to retrieve + * @param data data to post along + * @param len length of the file in bytes. set to '0' for autodetection + * @param customheader specify custom HTTP header (or NULL for default) + * @param callback specify the callback function + * @param callback_data specify data to pass to the callback function + * @return returned HTTP reply or NULL on error + */ +char *oauth_curl_send_data_with_callback (const char *u, const char *data, size_t len, const char *customheader, void (*callback)(void*,int,size_t,size_t), void *callback_data, const char *httpMethod) { + CURL *curl; + CURLcode res; + struct curl_slist *slist=NULL; + struct MemoryStruct chunk; + struct MemoryStruct rdnfo; + + chunk.data=NULL; + chunk.size=0; + chunk.start_size=0; + chunk.callback=callback; + chunk.callback_data=callback_data; + rdnfo.data=(char *)data; + rdnfo.size=len; + rdnfo.start_size=len; + rdnfo.callback=callback; + rdnfo.callback_data=callback_data; + + if (customheader) + slist = curl_slist_append(slist, customheader); + else + slist = curl_slist_append(slist, "Content-Type: image/jpeg;"); + + curl = curl_easy_init(); + if(!curl) return NULL; + curl_easy_setopt(curl, CURLOPT_URL, u); + curl_easy_setopt(curl, CURLOPT_POST, 1); + if (httpMethod) curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, httpMethod); + curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, len); + curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist); + curl_easy_setopt(curl, CURLOPT_READDATA, (void *)&rdnfo); + if (callback) + curl_easy_setopt(curl, CURLOPT_READFUNCTION, ReadMemoryCallbackAndCall); + else + curl_easy_setopt(curl, CURLOPT_READFUNCTION, ReadMemoryCallback); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk); + if (callback) + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallbackAndCall); + else + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); + curl_easy_setopt(curl, CURLOPT_USERAGENT, OAUTH_USER_AGENT); +#ifdef OAUTH_CURL_TIMEOUT + curl_easy_setopt(curl, CURLOPT_TIMEOUT, OAUTH_CURL_TIMEOUT); + curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); +#endif + GLOBAL_CURL_ENVIROMENT_OPTIONS; + res = curl_easy_perform(curl); + curl_slist_free_all(slist); + if (res) { + // error + return NULL; + } + + curl_easy_cleanup(curl); + return (chunk.data); +} + +/** + * http post raw data. + * the returned string needs to be freed by the caller + * + * more documentation in oauth.h + * + * @param u url to retrieve + * @param data data to post along + * @param len length of the file in bytes. set to '0' for autodetection + * @param customheader specify custom HTTP header (or NULL for default) + * @return returned HTTP reply or NULL on error + */ +char *oauth_curl_post_data(const char *u, const char *data, size_t len, const char *customheader) { + return oauth_curl_send_data_with_callback(u, data, len, customheader, NULL, NULL, NULL); +} + +char *oauth_curl_send_data (const char *u, const char *data, size_t len, const char *customheader, const char *httpMethod) { + return oauth_curl_send_data_with_callback(u, data, len, customheader, NULL, NULL, httpMethod); +} + +char *oauth_curl_post_data_with_callback (const char *u, const char *data, size_t len, const char *customheader, void (*callback)(void*,int,size_t,size_t), void *callback_data) { + return oauth_curl_send_data_with_callback(u, data, len, customheader, callback, callback_data, NULL); +} + +#endif // libcURL. + + +#ifdef HAVE_SHELL_CURL /* HTTP requests via command-line curl */ + +// command line presets and ENV variable name +#define _OAUTH_ENV_HTTPCMD "OAUTH_HTTP_CMD" +#define _OAUTH_ENV_HTTPGET "OAUTH_HTTP_GET_CMD" + +#ifdef OAUTH_CURL_TIMEOUT + +#define cpxstr(s) cpstr(s) +#define cpstr(s) #s + +#ifndef _OAUTH_DEF_HTTPCMD +# define _OAUTH_DEF_HTTPCMD "curl -sA '"OAUTH_USER_AGENT"' -m "cpxstr(OAUTH_CURL_TIMEOUT)" -d '%p' '%u' " +//alternative: "wget -q -U 'liboauth-agent/0.1' --post-data='%p' '%u' " +#endif + +#ifndef _OAUTH_DEF_HTTPGET +# define _OAUTH_DEF_HTTPGET "curl -sA '"OAUTH_USER_AGENT"' -m "cpxstr(OAUTH_CURL_TIMEOUT)" '%u' " +//alternative: "wget -q -U 'liboauth-agent/0.1' '%u' " +#endif + +#else // no timeout + +#ifndef _OAUTH_DEF_HTTPCMD +# define _OAUTH_DEF_HTTPCMD "curl -sA '"OAUTH_USER_AGENT"' -d '%p' '%u' " +//alternative: "wget -q -U 'liboauth-agent/0.1' --post-data='%p' '%u' " +#endif + +#ifndef _OAUTH_DEF_HTTPGET +# define _OAUTH_DEF_HTTPGET "curl -sA '"OAUTH_USER_AGENT"' '%u' " +//alternative: "wget -q -U 'liboauth-agent/0.1' '%u' " +#endif + +#endif + +#include <stdio.h> + +/** + * escape URL for use in String Quotes (aka shell single quotes). + * the returned string needs to be free()d by the calling function + * + * WARNING: this function only escapes single-quotes (') + * + * + * RFC2396 defines the following + * reserved = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" | "$" | "," + * besides alphanum the following are allowed as unreserved: + * mark = "-" | "_" | "." | "!" | "~" | "*" | "'" | "(" | ")" + * + * checking `echo '-_.!~*()'` it seems we + * just need to escape the tick (') itself from "'" to "'\''" + * + * In C shell, the "!" character may need a backslash before it. + * It depends on the characters next to it. If it is surrounded by spaces, + * you don't need to use a backslash. + * (here: we'd always need to escape it for c shell) + * @todo: escape '!' for c-shell curl/wget commandlines + * + * @param cmd URI string or parameter to be escaped + * @return escaped parameter + */ +char *oauth_escape_shell (const char *cmd) { + char *esc = xstrdup(cmd); + char *tmp = esc; + int idx; + while ((tmp=strchr(tmp,'\''))) { + idx = tmp-esc; + esc=(char*)xrealloc(esc,(strlen(esc)+5)*sizeof(char)); + memmove(esc+idx+4,esc+idx+1, strlen(esc+idx)); + esc[idx+1]='\\'; esc[idx+2]='\''; esc[idx+3]='\''; + tmp=esc+(idx+4); + } + +// TODO escape '!' if CSHELL ?! + + return esc; +} + +/** + * execute command via shell and return it's output. + * This is used to call 'curl' or 'wget'. + * the command is uses <em>as is</em> and needs to be propery escaped. + * + * @param cmd the commandline to execute + * @return stdout string that needs to be freed or NULL if there's no output + */ +char *oauth_exec_shell (const char *cmd) { +#ifdef DEBUG_OAUTH + printf("DEBUG: executing: %s\n",cmd); +#endif + FILE *in = popen (cmd, "r"); + size_t len = 0; + size_t alloc = 0; + char *data = NULL; + int rcv = 1; + while (in && rcv > 0 && !feof(in)) { + alloc +=1024; + data = (char*)xrealloc(data, alloc * sizeof(char)); + rcv = fread(data + (alloc-1024), sizeof(char), 1024, in); + len += rcv; + } + pclose(in); +#ifdef DEBUG_OAUTH + printf("DEBUG: read %i bytes\n",len); +#endif + data[len]=0; +#ifdef DEBUG_OAUTH + if (data) printf("DEBUG: return: %s\n",data); + else printf("DEBUG: NULL data\n"); +#endif + return (data); +} + +/** + * send POST via a command line HTTP client, wait for it to finish + * and return the content of the reply. requires a command-line HTTP client + * + * see \ref oauth_http_post + * + * @param u url to query + * @param p postargs to send along with the HTTP request. + * @return In case of an error NULL is returned; otherwise a pointer to the + * replied content from HTTP server. latter needs to be freed by caller. + */ +char *oauth_exec_post (const char *u, const char *p) { + char cmd[BUFSIZ]; + char *t1,*t2; + char *cmdtpl = getenv(_OAUTH_ENV_HTTPCMD); + if (!cmdtpl) cmdtpl = xstrdup (_OAUTH_DEF_HTTPCMD); + else cmdtpl = xstrdup (cmdtpl); // clone getenv() string. + + // add URL and post param - error if no '%p' or '%u' present in definition + t1=strstr(cmdtpl, "%p"); + t2=strstr(cmdtpl, "%u"); + if (!t1 || !t2) { + fprintf(stderr, "\nliboauth: invalid HTTP command. set the '%s' environment variable.\n\n",_OAUTH_ENV_HTTPCMD); + return(NULL); + } + // TODO: check if there are exactly two '%' in cmdtpl + *(++t1)= 's'; *(++t2)= 's'; + if (t1>t2) { + t1=oauth_escape_shell(u); + t2=oauth_escape_shell(p); + } else { + t1=oauth_escape_shell(p); + t2=oauth_escape_shell(u); + } + snprintf(cmd, BUFSIZ, cmdtpl, t1, t2); + free(cmdtpl); + free(t1); free(t2); + return oauth_exec_shell(cmd); +} + +/** + * send GET via a command line HTTP client + * and return the content of the reply.. + * requires a command-line HTTP client. + * + * Note: u and q are just concatenated with a '?' in between unless q is NULL. in which case only u will be used. + * + * see \ref oauth_http_get + * + * @param u base url to get + * @param q query string to send along with the HTTP request. + * @return In case of an error NULL is returned; otherwise a pointer to the + * replied content from HTTP server. latter needs to be freed by caller. + */ +char *oauth_exec_get (const char *u, const char *q) { + char cmd[BUFSIZ]; + char *cmdtpl, *t1, *e1; + + if (!u) return (NULL); + + cmdtpl = getenv(_OAUTH_ENV_HTTPGET); + if (!cmdtpl) cmdtpl = xstrdup (_OAUTH_DEF_HTTPGET); + else cmdtpl = xstrdup (cmdtpl); // clone getenv() string. + + // add URL and post param - error if no '%p' or '%u' present in definition + t1=strstr(cmdtpl, "%u"); + if (!t1) { + fprintf(stderr, "\nliboauth: invalid HTTP command. set the '%s' environment variable.\n\n",_OAUTH_ENV_HTTPGET); + return(NULL); + } + *(++t1)= 's'; + + e1 = oauth_escape_shell(u); + if (q) { + char *e2; + e2 = oauth_escape_shell(q); + t1=(char*)xmalloc(sizeof(char)*(strlen(e1)+strlen(e2)+2)); + strcpy(t1,e1); strcat(t1,"?"); strcat(t1,e2); + free(e2); + } + snprintf(cmd, BUFSIZ, cmdtpl, q?t1:e1); + free(cmdtpl); + free(e1); + if (q) free(t1); + return oauth_exec_shell(cmd); +} +#endif // command-line curl. + +/* wrapper functions */ + +/** + * do a HTTP GET request, wait for it to finish + * and return the content of the reply. + * (requires libcurl or a command-line HTTP client) + * + * more documentation in oauth.h + * + * @param u base url to get + * @param q query string to send along with the HTTP request or NULL. + * @return In case of an error NULL is returned; otherwise a pointer to the + * replied content from HTTP server. latter needs to be freed by caller. + */ +char *oauth_http_get (const char *u, const char *q) { +#ifdef HAVE_CURL + return oauth_curl_get(u,q,NULL); +#elif defined(HAVE_SHELL_CURL) + return oauth_exec_get(u,q); +#else + return NULL; +#endif +} + +/** + * do a HTTP GET request, wait for it to finish + * and return the content of the reply. + * (requires libcurl) + * + * @param u base url to get + * @param q query string to send along with the HTTP request or NULL. + * @param customheader specify custom HTTP header (or NULL for none) + * @return In case of an error NULL is returned; otherwise a pointer to the + * replied content from HTTP server. latter needs to be freed by caller. + */ +char *oauth_http_get2 (const char *u, const char *q, const char *customheader) { +#ifdef HAVE_CURL + return oauth_curl_get(u,q,customheader); +#else + return NULL; +#endif +} + +/** + * do a HTTP POST request, wait for it to finish + * and return the content of the reply. + * (requires libcurl or a command-line HTTP client) + * + * more documentation in oauth.h + * + * @param u url to query + * @param p postargs to send along with the HTTP request. + * @return In case of an error NULL is returned; otherwise a pointer to the + * replied content from HTTP server. latter needs to be freed by caller. + */ +char *oauth_http_post (const char *u, const char *p) { +#ifdef HAVE_CURL + return oauth_curl_post(u,p,NULL); +#elif defined(HAVE_SHELL_CURL) + return oauth_exec_post(u,p); +#else + return NULL; +#endif +} + + +/** + * do a HTTP POST request, wait for it to finish + * and return the content of the reply. + * (requires libcurl) + * + * more documentation in oauth.h + * + * @param u url to query + * @param p postargs to send along with the HTTP request. + * @param customheader specify custom HTTP header (or NULL for none) + * @return In case of an error NULL is returned; otherwise a pointer to the + * replied content from HTTP server. latter needs to be freed by caller. + */ +char *oauth_http_post2 (const char *u, const char *p, const char *customheader) { +#ifdef HAVE_CURL + return oauth_curl_post(u,p,customheader); +#else + return NULL; +#endif +} + +/** + * http post raw data from file. + * the returned string needs to be freed by the caller + * + * more documentation in oauth.h + * + * @param u url to retrieve + * @param fn filename of the file to post along + * @param len length of the file in bytes. set to '0' for autodetection + * @param customheader specify custom HTTP header (or NULL for default) + * @return returned HTTP reply or NULL on error + */ +char *oauth_post_file (const char *u, const char *fn, const size_t len, const char *customheader){ +#ifdef HAVE_CURL + return oauth_curl_post_file (u, fn, len, customheader); +#elif defined(HAVE_SHELL_CURL) + fprintf(stderr, "\nliboauth: oauth_post_file requires libcurl. libcurl is not available.\n\n"); + return NULL; +#else + return NULL; +#endif +} + +/** + * http post raw data. + * the returned string needs to be freed by the caller + * + * more documentation in oauth.h + * + * @param u url to retrieve + * @param data data to post along + * @param len length of the file in bytes. set to '0' for autodetection + * @param customheader specify custom HTTP header (or NULL for default) + * @return returned HTTP reply or NULL on error + */ +char *oauth_post_data (const char *u, const char *data, size_t len, const char *customheader) { +#ifdef HAVE_CURL + return oauth_curl_post_data (u, data, len, customheader); +#elif defined(HAVE_SHELL_CURL) + fprintf(stderr, "\nliboauth: oauth_post_file requires libcurl. libcurl is not available.\n\n"); + return NULL; +#else + return (NULL); +#endif +} + +char *oauth_send_data (const char *u, const char *data, size_t len, const char *customheader, const char *httpMethod) { +#ifdef HAVE_CURL + return oauth_curl_send_data (u, data, len, customheader, httpMethod); +#elif defined(HAVE_SHELL_CURL) + fprintf(stderr, "\nliboauth: oauth_send_file requires libcurl. libcurl is not available.\n\n"); + return NULL; +#else + return (NULL); +#endif +} + +char *oauth_post_data_with_callback (const char *u, const char *data, size_t len, const char *customheader, void (*callback)(void*,int,size_t,size_t), void *callback_data) { +#ifdef HAVE_CURL + return oauth_curl_post_data_with_callback(u, data, len, customheader, callback, callback_data); +#elif defined(HAVE_SHELL_CURL) + fprintf(stderr, "\nliboauth: oauth_post_data_with_callback requires libcurl.\n\n"); + return NULL; +#else + return (NULL); +#endif +} +/* vi:set ts=8 sts=2 sw=2: */ |