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Diffstat (limited to 'libs/util/src')
| -rw-r--r-- | libs/util/src/Url.cc | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/libs/util/src/Url.cc b/libs/util/src/Url.cc new file mode 100644 index 0000000..e31637d --- /dev/null +++ b/libs/util/src/Url.cc @@ -0,0 +1,229 @@ +/** + * ======================== legal notice ====================== + * + * File: Url.cc + * Created: 4. Juli 2012, 05 + * Author: <a href="mailto:geronimo013@gmx.de">Geronimo</a> + * Project: libutil - base classes used by other libraries + * + * CMP - compound media player + * + * is a client/server mediaplayer intended to play any media from any workstation + * without the need to export or mount shares. cmps is an easy to use backend + * with a (ready to use) HTML-interface. Additionally the backend supports + * authentication via HTTP-digest authorization. + * cmpc is a client with vdr-like osd-menues. + * + * Copyright (c) 2012 Reinhard Mantey, some rights reserved! + * published under Creative Commons by-sa + * For details see http://creativecommons.org/licenses/by-sa/3.0/ + * + * The cmp project's homepage is at http://projects.vdr-developer.org/projects/cmp + * + * -------------------------------------------------------------- + */ +#include <Url.h> +#include <Codec.h> +#include <util.h> +#ifdef DEBUG +#include <iostream> +#endif +#include <stdio.h> +#include <string.h> +#include <vector> + +static cURLEncoder * encoder = NULL; +static cURLDecoder * decoder = NULL; + +cUrl::cUrl(const char* RawURL) + : path(NULL) +{ + ParseURL(RawURL); +} + +cUrl::~cUrl() +{ + FREE(path); +} + +cURLDecoder* cUrl::Decoder(void) +{ + if (!decoder) decoder = new cURLDecoder(); + return decoder; +} + +cURLEncoder* cUrl::Encoder(void) +{ + if (!encoder) encoder = new cURLEncoder(); + return encoder; +} + +const char *cUrl::Parameter(const char* Name) +{ + std::tr1::unordered_map<std::string, std::string>::iterator found = parameters.find(Name); + if (found != parameters.end()) return found->second.c_str(); + return NULL; +} + +void cUrl::SetParameter(const char* Name, const char* Value) +{ + std::string name = Name; + std::string value = Value ? Value : " "; + parameters[name] = value; +} + +size_t cUrl::EstimatedSize(void ) const +{ + size_t rv = parameters.size() * 3; + + if (path) rv += strlen(path) + 4; + ParameterMap::const_iterator pm = parameters.begin(); + + while (pm != parameters.end()) { + rv += pm->first.length() * 3; + rv += pm->second.length() * 3; + ++pm; + } + return rv; +} + +void cUrl::ParseURL(const char *URL) +{ + FREE(path); + parameters.clear(); + if (!URL) return; + const char *q = strchr(URL, '?'); // divider between url and querystring +// char *realURL; +// size_t l; + + if (!q) q = URL + strlen(URL); +// l = q - URL; +// realURL = (char *)malloc(l + 2); +// if (!realURL) return; +// strncpy(realURL, URL, l); +// realURL[l] = 0; + path = Decoder()->Decode(URL, q - URL); + if (*q) ParseQueryString(++q); +} + +void cUrl::ParseQueryString(const char* QueryString) +{ + if (!(QueryString && *QueryString)) return; + const char *start, *last; + char *scratch = strdup(QueryString); + char *p, *end; + size_t srcLen = strlen(QueryString); + + for (start = (const char *)scratch, end = (char *) start, last = scratch + srcLen; end && start < last; start = (const char *)++end) { + end = (char *) strchr(start, '&'); + if (!end) end = (char *)start + strlen(start); + *end = 0; + p = (char *) strchr(start, '='); + if (p) { + *p++ = 0; + char *pn = p ? Decoder()->Decode(start) : NULL; + char *pv = p ? Decoder()->Decode(p) : NULL; + + std::string name = pn; + std::string value = pv ? pv : " "; + + parameters[name] = value; + + free(pn); + free(pv); + } + else { + char *pn = Decoder()->Decode(start); + + std::string name = pn; + parameters[name] = " "; + free(pn); + } + } + free(scratch); +} + +char* cUrl::ToString(void) const +///< returns the address of the newly allocated buffer +{ + size_t bufSize = EstimatedSize(); + char *rv = (char *)malloc(bufSize); + + if (!rv) return NULL; + int n = WriteBuf(rv, bufSize); + + if (n < 0) { + bufSize += 128; + rv = (char *) realloc(rv, bufSize); + WriteBuf(rv, bufSize); + } + return rv; +} + +int cUrl::WriteBuf(char* buf, size_t bufSize) const +///< returns the characters written. -1 as return value indicates a buffer overrun. +{ + char *p, *tmp; + bool first = true; + int n = 0; + + if (path) n += snprintf(buf + n, bufSize - n, "%s", path); + p = buf + n; + ParameterMap::const_iterator pm = parameters.begin(); + + while (pm != parameters.end()) { + tmp = Encoder()->Encode(pm->first.c_str()); + if (p - buf + strlen(tmp) + 2 > bufSize) + return -1; + if (first) { + first = false; + *p++ = '?'; + } + else *p++ = '&'; + strcpy(p, tmp); + p += strlen(p); + FREE(tmp); + + if (strcmp(pm->second.c_str(), " ")) { + tmp = Encoder()->Encode(pm->second.c_str()); + if (p - buf + strlen(tmp) + 2 > bufSize) + return -1; + *p++ = '='; + strcpy(p, tmp); + p += strlen(p); + FREE(tmp); + } + ++pm; + } + p += strlen(p); + + return p - buf; +} + +#ifdef DEBUG +void cUrl::Dump(void ) +{ + ParameterMap::const_iterator pm = parameters.begin(); + + while (pm != parameters.end()) { + std::cout << "parameter [" << pm->first << "]"; + if (strcmp(pm->second.c_str(), " ")) + std::cout << " has value <|" << pm->second << "|>" << std::endl; + else + std::cout << " has NO value!" << std::endl; + ++pm; + } +} +#endif + +void cUrl::Cleanup(void ) +{ + if (encoder) { + delete encoder; + encoder = NULL; + } + if (decoder) { + delete decoder; + decoder = NULL; + } +}
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