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Diffstat (limited to 'src/libpiano/xml.c')
| -rw-r--r-- | src/libpiano/xml.c | 980 |
1 files changed, 0 insertions, 980 deletions
diff --git a/src/libpiano/xml.c b/src/libpiano/xml.c deleted file mode 100644 index d194963..0000000 --- a/src/libpiano/xml.c +++ /dev/null @@ -1,980 +0,0 @@ -/* -Copyright (c) 2008-2011 - Lars-Dominik Braun <lars@6xq.net> - -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. -*/ - -#ifndef __FreeBSD__ -#define _BSD_SOURCE /* required by strdup() */ -#define _DARWIN_C_SOURCE /* strdup() on OS X */ -#endif - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <ezxml.h> -#include <assert.h> - -#include "xml.h" -#include "piano.h" -#include "crypt.h" -#include "config.h" -#include "piano_private.h" - -static void PianoXmlStructParser (const ezxml_t, - void (*callback) (const char *, const ezxml_t, void *), void *); -static char *PianoXmlGetNodeText (const ezxml_t); - -/* parse fault and get fault type - * @param xml <name> content - * @param xml <value> node - * @param return error string - * @return nothing - */ -static void PianoXmlIsFaultCb (const char *key, const ezxml_t value, - void *data) { - PianoReturn_t *ret = data; - char *valueStr = PianoXmlGetNodeText (value); - char *matchStart, *matchEnd; - - if (strcmp ("faultString", key) == 0) { - *ret = PIANO_RET_ERR; - /* find fault identifier in a string like this: - * com.savagebeast.radio.api.protocol.xmlrpc.RadioXmlRpcException: - * 192.168.160.78|1213101717317|AUTH_INVALID_TOKEN| - * Invalid auth token */ - if ((matchStart = strchr (valueStr, '|')) != NULL) { - if ((matchStart = strchr (matchStart+1, '|')) != NULL) { - if ((matchEnd = strchr (matchStart+1, '|')) != NULL) { - /* changes text in xml node, but we don't care... */ - *matchEnd = '\0'; - ++matchStart; - /* translate to our error message system */ - if (strcmp ("AUTH_INVALID_TOKEN", matchStart) == 0) { - *ret = PIANO_RET_AUTH_TOKEN_INVALID; - } else if (strcmp ("AUTH_INVALID_USERNAME_PASSWORD", - matchStart) == 0) { - *ret = PIANO_RET_AUTH_USER_PASSWORD_INVALID; - } else if (strcmp ("LISTENER_NOT_AUTHORIZED", - matchStart) == 0) { - *ret = PIANO_RET_NOT_AUTHORIZED; - } else if (strcmp ("INCOMPATIBLE_VERSION", - matchStart) == 0) { - *ret = PIANO_RET_PROTOCOL_INCOMPATIBLE; - } else if (strcmp ("READONLY_MODE", matchStart) == 0) { - *ret = PIANO_RET_READONLY_MODE; - } else if (strcmp ("STATION_CODE_INVALID", - matchStart) == 0) { - *ret = PIANO_RET_STATION_CODE_INVALID; - } else if (strcmp ("STATION_DOES_NOT_EXIST", - matchStart) == 0) { - *ret = PIANO_RET_STATION_NONEXISTENT; - } else if (strcmp ("OUT_OF_SYNC", matchStart) == 0) { - *ret = PIANO_RET_OUT_OF_SYNC; - } else if (strcmp ("PLAYLIST_END", matchStart) == 0) { - *ret = PIANO_RET_PLAYLIST_END; - } else if (strcmp ("QUICKMIX_NOT_PLAYABLE", matchStart) == 0) { - *ret = PIANO_RET_QUICKMIX_NOT_PLAYABLE; - } else if (strcmp ("REMOVING_TOO_MANY_SEEDS", matchStart) == 0) { - *ret = PIANO_RET_REMOVING_TOO_MANY_SEEDS; - } else if (strcmp ("EXCESSIVE_ACTIVITY", matchStart) == 0) { - *ret = PIANO_RET_EXCESSIVE_ACTIVITY; - } else if (strcmp ("DAILY_SKIP_LIMIT_REACHED", matchStart) == 0) { - *ret = PIANO_RET_DAILY_SKIP_LIMIT_REACHED; - } else { - *ret = PIANO_RET_ERR; - printf (PACKAGE ": Unknown error %s in %s\n", - matchStart, valueStr); - } - } - } - } - } else if (strcmp ("faultCode", key) == 0) { - /* some errors can only be identified by looking at their id */ - /* detect pandora's ip restriction */ - if (strcmp ("12", valueStr) == 0) { - *ret = PIANO_RET_IP_REJECTED; - } - } -} - -/* check whether pandora returned an error or not - * @param document root of xml doc - * @return _RET_OK or fault code (_RET_*) - */ -static PianoReturn_t PianoXmlIsFault (ezxml_t xmlDoc) { - PianoReturn_t ret; - - if ((xmlDoc = ezxml_child (xmlDoc, "fault")) != NULL) { - xmlDoc = ezxml_get (xmlDoc, "value", 0, "struct", -1); - PianoXmlStructParser (xmlDoc, PianoXmlIsFaultCb, &ret); - return ret; - } - return PIANO_RET_OK; -} - -/* parses things like this: - * <struct> - * <member> - * <name /> - * <value /> - * </member> - * <!-- ... --> - * </struct> - * @param xml node named "struct" (or containing a similar structure) - * @param who wants to use this data? callback: content of <name> as - * string, content of <value> as xmlNode (may contain other nodes - * or text), additional data used by callback(); don't forget - * to *copy* data taken from <name> or <value> as they will be - * freed soon - * @param extra data for callback - */ -static void PianoXmlStructParser (const ezxml_t structRoot, - void (*callback) (const char *, const ezxml_t, void *), void *data) { - ezxml_t curNode, keyNode, valueNode; - char *key; - - /* get all <member> nodes */ - for (curNode = ezxml_child (structRoot, "member"); curNode; curNode = curNode->next) { - /* reset variables */ - key = NULL; - valueNode = keyNode = NULL; - - keyNode = ezxml_child (curNode, "name"); - if (keyNode != NULL) { - key = ezxml_txt (keyNode); - } - - valueNode = ezxml_child (curNode, "value"); - /* this will ignore empty <value /> nodes, but well... */ - if (*key != '\0' && valueNode != NULL) { - (*callback) ((char *) key, valueNode, data); - } - } -} - -/* create xml parser from string - * @param xml document - * @param returns document pointer (needed to free memory later) - * @param returns document root - * @return _OK or error - */ -static PianoReturn_t PianoXmlInitDoc (char *xmlStr, ezxml_t *xmlDoc) { - PianoReturn_t ret; - - if ((*xmlDoc = ezxml_parse_str (xmlStr, strlen (xmlStr))) == NULL) { - return PIANO_RET_XML_INVALID; - } - - if ((ret = PianoXmlIsFault (*xmlDoc)) != PIANO_RET_OK) { - ezxml_free (*xmlDoc); - return ret; - } - - return PIANO_RET_OK; -} - -/* get text from <value> nodes; some of them have <boolean>, <string> - * or <int> subnodes, just ignore them - * @param xml node <value> - */ -static char *PianoXmlGetNodeText (const ezxml_t node) { - char *retTxt = NULL; - - retTxt = ezxml_txt (node); - /* no text => empty string */ - if (*retTxt == '\0') { - retTxt = ezxml_txt (node->child); - } - return retTxt; -} - -/* structParser callback; writes userinfo to PianoUserInfo structure - * @param value identifier - * @param value node - * @param pointer to userinfo structure - * @return nothing - */ -static void PianoXmlParseUserinfoCb (const char *key, const ezxml_t value, - void *data) { - PianoUserInfo_t *user = data; - char *valueStr = PianoXmlGetNodeText (value); - - if (strcmp ("webAuthToken", key) == 0) { - user->webAuthToken = strdup (valueStr); - } else if (strcmp ("authToken", key) == 0) { - user->authToken = strdup (valueStr); - } else if (strcmp ("listenerId", key) == 0) { - user->listenerId = strdup (valueStr); - } -} - -static void PianoXmlParseStationsCb (const char *key, const ezxml_t value, - void *data) { - PianoStation_t *station = data; - char *valueStr = PianoXmlGetNodeText (value); - - if (strcmp ("stationName", key) == 0) { - station->name = strdup (valueStr); - } else if (strcmp ("stationId", key) == 0) { - station->id = strdup (valueStr); - } else if (strcmp ("isQuickMix", key) == 0) { - station->isQuickMix = (strcmp (valueStr, "1") == 0); - } else if (strcmp ("isCreator", key) == 0) { - station->isCreator = (strcmp (valueStr, "1") == 0); - } -} - -static void PianoXmlParsePlaylistCb (const char *key, const ezxml_t value, - void *data) { - PianoSong_t *song = data; - char *valueStr = PianoXmlGetNodeText (value); - - if (strcmp ("audioURL", key) == 0) { - /* last 48 chars of audioUrl are encrypted, but they put the key - * into the door's lock... */ - const char urlTailN = 48; - const size_t valueStrN = strlen (valueStr); - char *urlTail = NULL, - *urlTailCrypted = &valueStr[valueStrN - urlTailN]; - - /* don't try to decrypt if string is too short (=> invalid memory - * reads/writes) */ - if (valueStrN > urlTailN && - (urlTail = PianoDecryptString (urlTailCrypted, NULL)) != NULL) { - if ((song->audioUrl = calloc (valueStrN + 1, - sizeof (*song->audioUrl))) != NULL) { - memcpy (song->audioUrl, valueStr, valueStrN - urlTailN); - /* FIXME: the key seems to be broken... so ignore 8 x 0x08 - * postfix; urlTailN/2 because the encrypted hex string is now - * decoded */ - memcpy (&song->audioUrl[valueStrN - urlTailN], urlTail, - urlTailN/2 - 8); - } - free (urlTail); - } - } else if (strcmp ("artRadio", key) == 0) { - song->coverArt = strdup (valueStr); - } else if (strcmp ("artistSummary", key) == 0) { - song->artist = strdup (valueStr); - } else if (strcmp ("musicId", key) == 0) { - song->musicId = strdup (valueStr); - } else if (strcmp ("userSeed", key) == 0) { - song->userSeed = strdup (valueStr); - } else if (strcmp ("songTitle", key) == 0) { - song->title = strdup (valueStr); - } else if (strcmp ("rating", key) == 0) { - if (strcmp (valueStr, "1") == 0) { - song->rating = PIANO_RATE_LOVE; - } else { - song->rating = PIANO_RATE_NONE; - } - } else if (strcmp ("isPositive", key) == 0) { - if (strcmp (valueStr, "1") == 0) { - song->rating = PIANO_RATE_LOVE; - } else { - song->rating = PIANO_RATE_BAN; - } - } else if (strcmp ("stationId", key) == 0) { - song->stationId = strdup (valueStr); - } else if (strcmp ("albumTitle", key) == 0) { - song->album = strdup (valueStr); - } else if (strcmp ("fileGain", key) == 0) { - song->fileGain = atof (valueStr); - } else if (strcmp ("audioEncoding", key) == 0) { - if (strcmp (valueStr, "aacplus") == 0) { - song->audioFormat = PIANO_AF_AACPLUS; - } else if (strcmp (valueStr, "mp3") == 0) { - song->audioFormat = PIANO_AF_MP3; - } else if (strcmp (valueStr, "mp3-hifi") == 0) { - song->audioFormat = PIANO_AF_MP3_HI; - } - } else if (strcmp ("artistMusicId", key) == 0) { - song->artistMusicId = strdup (valueStr); - } else if (strcmp ("feedbackId", key) == 0) { - song->feedbackId = strdup (valueStr); - } else if (strcmp ("songDetailURL", key) == 0) { - song->detailUrl = strdup (valueStr); - } else if (strcmp ("trackToken", key) == 0) { - song->trackToken = strdup (valueStr); - } -} - -/* parses userinfos sent by pandora as login response - * @param piano handle - * @param utf-8 string - * @return _RET_OK or error - */ -PianoReturn_t PianoXmlParseUserinfo (PianoHandle_t *ph, char *xml) { - ezxml_t xmlDoc, structNode; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - /* <methodResponse> <params> <param> <value> <struct> */ - structNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1); - PianoXmlStructParser (structNode, PianoXmlParseUserinfoCb, &ph->user); - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - -static void PianoXmlParseQuickMixStationsCb (const char *key, const ezxml_t value, - void *data) { - char ***retIds = data; - char **ids = NULL; - size_t idsN = 0; - ezxml_t curNode; - - if (strcmp ("quickMixStationIds", key) == 0) { - for (curNode = ezxml_child (ezxml_get (value, "array", 0, "data", -1), "value"); - curNode; curNode = curNode->next) { - idsN++; - if (ids == NULL) { - if ((ids = calloc (idsN, sizeof (*ids))) == NULL) { - *retIds = NULL; - return; - } - } else { - /* FIXME: memory leak (on failure) */ - if ((ids = realloc (ids, idsN * sizeof (*ids))) == NULL) { - *retIds = NULL; - return; - } - } - ids[idsN-1] = strdup (PianoXmlGetNodeText (curNode)); - } - /* append NULL: list ends here */ - idsN++; - /* FIXME: copy&waste */ - if (ids == NULL) { - if ((ids = calloc (idsN, sizeof (*ids))) == NULL) { - *retIds = NULL; - return; - } - } else { - if ((ids = realloc (ids, idsN * sizeof (*ids))) == NULL) { - *retIds = NULL; - return; - } - } - ids[idsN-1] = NULL; - - *retIds = ids; - } -} - -/* parse stations returned by pandora - * @param piano handle - * @param xml returned by pandora - * @return _RET_OK or error - */ -PianoReturn_t PianoXmlParseStations (PianoHandle_t *ph, char *xml) { - ezxml_t xmlDoc, dataNode; - PianoReturn_t ret; - char **quickMixIds = NULL, **curQuickMixId = NULL; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "array", - 0, "data", -1); - - for (dataNode = ezxml_child (dataNode, "value"); dataNode; - dataNode = dataNode->next) { - PianoStation_t *tmpStation; - - if ((tmpStation = calloc (1, sizeof (*tmpStation))) == NULL) { - ezxml_free (xmlDoc); - return PIANO_RET_OUT_OF_MEMORY; - } - - PianoXmlStructParser (ezxml_child (dataNode, "struct"), - PianoXmlParseStationsCb, tmpStation); - - /* get stations selected for quickmix */ - if (tmpStation->isQuickMix) { - PianoXmlStructParser (ezxml_child (dataNode, "struct"), - PianoXmlParseQuickMixStationsCb, &quickMixIds); - } - /* start new linked list or append */ - if (ph->stations == NULL) { - ph->stations = tmpStation; - } else { - PianoStation_t *curStation = ph->stations; - while (curStation->next != NULL) { - curStation = curStation->next; - } - curStation->next = tmpStation; - } - } - /* set quickmix flags after all stations are read */ - if (quickMixIds != NULL) { - curQuickMixId = quickMixIds; - while (*curQuickMixId != NULL) { - PianoStation_t *curStation = PianoFindStationById (ph->stations, - *curQuickMixId); - if (curStation != NULL) { - curStation->useQuickMix = 1; - } - free (*curQuickMixId); - curQuickMixId++; - } - free (quickMixIds); - } - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - -/* parse "create station" answer (it returns a new station structure) - * @param piano handle - * @param xml document - * @return nothing yet - */ -PianoReturn_t PianoXmlParseCreateStation (PianoHandle_t *ph, char *xml) { - ezxml_t xmlDoc, dataNode; - PianoStation_t *tmpStation; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1); - - if ((tmpStation = calloc (1, sizeof (*tmpStation))) == NULL) { - ezxml_free (xmlDoc); - return PIANO_RET_OUT_OF_MEMORY; - } - PianoXmlStructParser (dataNode, PianoXmlParseStationsCb, tmpStation); - /* FIXME: copy & waste */ - /* start new linked list or append */ - if (ph->stations == NULL) { - ph->stations = tmpStation; - } else { - PianoStation_t *curStation = ph->stations; - while (curStation->next != NULL) { - curStation = curStation->next; - } - curStation->next = tmpStation; - } - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - -/* parse "add seed" answer, nearly the same as ParseCreateStation - * @param piano handle - * @param xml document - * @param update this station - */ -PianoReturn_t PianoXmlParseAddSeed (PianoHandle_t *ph, char *xml, - PianoStation_t *station) { - ezxml_t xmlDoc, dataNode; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1); - PianoDestroyStation (station); - PianoXmlStructParser (dataNode, PianoXmlParseStationsCb, station); - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - -static PianoReturn_t PianoXmlParsePlaylistStruct (ezxml_t xml, - PianoSong_t **retSong) { - PianoSong_t *playlist = *retSong, *tmpSong; - - if ((tmpSong = calloc (1, sizeof (*tmpSong))) == NULL) { - return PIANO_RET_OUT_OF_MEMORY; - } - - PianoXmlStructParser (ezxml_child (xml, "struct"), PianoXmlParsePlaylistCb, - tmpSong); - /* begin linked list or append */ - if (playlist == NULL) { - playlist = tmpSong; - } else { - PianoSong_t *curSong = playlist; - while (curSong->next != NULL) { - curSong = curSong->next; - } - curSong->next = tmpSong; - } - - *retSong = playlist; - - return PIANO_RET_OK; -} - -/* parses playlist; used when searching too - * @param piano handle - * @param xml document - * @param return: playlist - */ -PianoReturn_t PianoXmlParsePlaylist (PianoHandle_t *ph, char *xml, - PianoSong_t **retPlaylist) { - ezxml_t xmlDoc, dataNode; - PianoReturn_t ret = PIANO_RET_OK; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "array", - 0, "data", -1); - - for (dataNode = ezxml_child (dataNode, "value"); dataNode; - dataNode = dataNode->next) { - if ((ret = PianoXmlParsePlaylistStruct (dataNode, retPlaylist)) != - PIANO_RET_OK) { - break; - } - } - - ezxml_free (xmlDoc); - - return ret; -} - -/* check for exception only - * @param xml string - * @return _OK or error - */ -PianoReturn_t PianoXmlParseSimple (char *xml) { - ezxml_t xmlDoc; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - ezxml_free (xmlDoc); - - return ret; -} - -/* xml struct parser callback, used in PianoXmlParseSearchCb - */ -static void PianoXmlParseSearchArtistCb (const char *key, const ezxml_t value, - void *data) { - PianoArtist_t *artist = data; - char *valueStr = PianoXmlGetNodeText (value); - - if (strcmp ("artistName", key) == 0) { - artist->name = strdup (valueStr); - } else if (strcmp ("musicId", key) == 0) { - artist->musicId = strdup (valueStr); - } -} - -/* callback for xml struct parser used in PianoXmlParseSearch, "switch" for - * PianoXmlParseSearchArtistCb and PianoXmlParsePlaylistCb - */ -static void PianoXmlParseSearchCb (const char *key, const ezxml_t value, - void *data) { - PianoSearchResult_t *searchResult = data; - ezxml_t curNode; - - if (strcmp ("artists", key) == 0) { - /* skip <value><array><data> */ - for (curNode = ezxml_child (ezxml_get (value, "array", 0, "data", -1), "value"); - curNode; curNode = curNode->next) { - PianoArtist_t *artist; - - if ((artist = calloc (1, sizeof (*artist))) == NULL) { - /* fail silently */ - break; - } - - memset (artist, 0, sizeof (*artist)); - - PianoXmlStructParser (ezxml_child (curNode, "struct"), - PianoXmlParseSearchArtistCb, artist); - - /* add result to linked list */ - if (searchResult->artists == NULL) { - searchResult->artists = artist; - } else { - PianoArtist_t *curArtist = searchResult->artists; - while (curArtist->next != NULL) { - curArtist = curArtist->next; - } - curArtist->next = artist; - } - } - } else if (strcmp ("songs", key) == 0) { - for (curNode = ezxml_child (ezxml_get (value, "array", 0, "data", -1), "value"); - curNode; curNode = curNode->next) { - if (PianoXmlParsePlaylistStruct (curNode, &searchResult->songs) != - PIANO_RET_OK) { - break; - } - } - } -} - -/* parse search result; searchResult is nulled before use - * @param xml document - * @param returns search result - * @return nothing yet - */ -PianoReturn_t PianoXmlParseSearch (char *xml, - PianoSearchResult_t *searchResult) { - ezxml_t xmlDoc, dataNode; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1); - /* we need a "clean" search result (with null pointers) */ - memset (searchResult, 0, sizeof (*searchResult)); - PianoXmlStructParser (dataNode, PianoXmlParseSearchCb, searchResult); - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - -/* FIXME: copy&waste (PianoXmlParseSearch) - */ -PianoReturn_t PianoXmlParseSeedSuggestions (char *xml, - PianoSearchResult_t *searchResult) { - ezxml_t xmlDoc, dataNode; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", -1); - /* we need a "clean" search result (with null pointers) */ - memset (searchResult, 0, sizeof (*searchResult)); - /* reuse seach result parser; structure is nearly the same */ - PianoXmlParseSearchCb ("artists", dataNode, searchResult); - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - -/* encode reserved xml chars - * TODO: remove and use ezxml_ampencode - * @param encode this - * @return encoded string or NULL - */ -char *PianoXmlEncodeString (const char *s) { - static const char *replacements[] = {"&&", "''", "\""", - "<<", ">>", NULL}; - const char **r; - char *sOut, *sOutCurr, found; - - if ((sOut = calloc (strlen (s) * 5 + 1, sizeof (*sOut))) == NULL) { - return NULL; - } - - sOutCurr = sOut; - - while (*s != '\0') { - r = replacements; - found = 0; - while (*r != NULL) { - if (*s == *r[0]) { - found = 1; - strcat (sOutCurr, (*r) + 1); - sOutCurr += strlen ((*r) + 1); - break; - } - r++; - } - if (!found) { - *sOutCurr = *s; - sOutCurr++; - } - s++; - } - return sOut; -} - -PianoReturn_t PianoXmlParseGenreExplorer (PianoHandle_t *ph, char *xml) { - ezxml_t xmlDoc, catNode; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - /* get all <member> nodes */ - for (catNode = ezxml_child (xmlDoc, "category"); catNode; - catNode = catNode->next) { - PianoGenreCategory_t *tmpGenreCategory; - ezxml_t genreNode; - - if ((tmpGenreCategory = calloc (1, sizeof (*tmpGenreCategory))) == NULL) { - ezxml_free (xmlDoc); - return PIANO_RET_OUT_OF_MEMORY; - } - - tmpGenreCategory->name = strdup (ezxml_attr (catNode, "categoryName")); - - /* get genre subnodes */ - for (genreNode = ezxml_child (catNode, "genre"); genreNode; - genreNode = genreNode->next) { - PianoGenre_t *tmpGenre; - - if ((tmpGenre = calloc (1, sizeof (*tmpGenre))) == NULL) { - ezxml_free (xmlDoc); - return PIANO_RET_OUT_OF_MEMORY; - } - - /* get genre attributes */ - tmpGenre->name = strdup (ezxml_attr (genreNode, "name")); - tmpGenre->musicId = strdup (ezxml_attr (genreNode, "musicId")); - - /* append station */ - if (tmpGenreCategory->genres == NULL) { - tmpGenreCategory->genres = tmpGenre; - } else { - PianoGenre_t *curGenre = - tmpGenreCategory->genres; - while (curGenre->next != NULL) { - curGenre = curGenre->next; - } - curGenre->next = tmpGenre; - } - } - /* append category */ - if (ph->genreStations == NULL) { - ph->genreStations = tmpGenreCategory; - } else { - PianoGenreCategory_t *curCat = ph->genreStations; - while (curCat->next != NULL) { - curCat = curCat->next; - } - curCat->next = tmpGenreCategory; - } - } - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - -/* dummy function, only checks for errors - * @param xml doc - * @return _OK or error - */ -PianoReturn_t PianoXmlParseTranformStation (char *xml) { - ezxml_t xmlDoc; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - -/* parses "why did you play ...?" answer - * @param xml - * @param returns the answer - * @return _OK or error - */ -PianoReturn_t PianoXmlParseNarrative (char *xml, char **retNarrative) { - ezxml_t xmlDoc, dataNode; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - /* <methodResponse> <params> <param> <value> $textnode */ - dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", -1); - *retNarrative = strdup (ezxml_txt (dataNode)); - - ezxml_free (xmlDoc); - - return ret; -} - -/* seed bag, required because seedId is not part of artist/song struct in - * pandora's xml response - */ -struct PianoXmlParseSeedBag { - char *seedId; - PianoSong_t *song; - PianoArtist_t *artist; - PianoStation_t *station; -}; - -/* parse seed struct - */ -static void PianoXmlParseSeedCb (const char *key, const ezxml_t value, - void *data) { - struct PianoXmlParseSeedBag *bag = data; - - assert (bag != NULL); - - if (strcmp ("song", key) == 0) { - assert (bag->song == NULL); - - if ((bag->song = calloc (1, sizeof (*bag->song))) == NULL) { - return; - } - - PianoXmlStructParser (ezxml_child (value, "struct"), - PianoXmlParsePlaylistCb, bag->song); - } else if (strcmp ("artist", key) == 0) { - assert (bag->artist == NULL); - - if ((bag->artist = calloc (1, sizeof (*bag->artist))) == NULL) { - return; - } - - PianoXmlStructParser (ezxml_child (value, "struct"), - PianoXmlParseSearchArtistCb, bag->artist); - } else if (strcmp ("nonGenomeStation", key) == 0) { - /* genre stations are "non genome" station seeds */ - assert (bag->station == NULL); - - if ((bag->station = calloc (1, sizeof (*bag->station))) == NULL) { - return; - } - - PianoXmlStructParser (ezxml_child (value, "struct"), - PianoXmlParseStationsCb, bag->station); - } else if (strcmp ("seedId", key) == 0) { - char *valueStr = PianoXmlGetNodeText (value); - bag->seedId = strdup (valueStr); - } -} - -/* parse getStation xml struct - */ -static void PianoXmlParseGetStationInfoCb (const char *key, const ezxml_t value, - void *data) { - PianoStationInfo_t *info = data; - - if (strcmp ("seeds", key) == 0) { - const ezxml_t dataNode = ezxml_get (value, "array", 0, "data", -1); - for (ezxml_t seedNode = ezxml_child (dataNode, "value"); seedNode; - seedNode = seedNode->next) { - struct PianoXmlParseSeedBag bag; - memset (&bag, 0, sizeof (bag)); - - PianoXmlStructParser (ezxml_child (seedNode, "struct"), - PianoXmlParseSeedCb, &bag); - - assert (bag.song != NULL || bag.artist != NULL || - bag.station != NULL); - - if (bag.seedId == NULL) { - /* seeds without id are useless */ - continue; - } - - /* FIXME: copy&waste */ - if (bag.song != NULL) { - bag.song->seedId = bag.seedId; - - if (info->songSeeds == NULL) { - info->songSeeds = bag.song; - } else { - PianoSong_t *curSong = info->songSeeds; - while (curSong->next != NULL) { - curSong = curSong->next; - } - curSong->next = bag.song; - } - } else if (bag.artist != NULL) { - bag.artist->seedId = bag.seedId; - - if (info->artistSeeds == NULL) { - info->artistSeeds = bag.artist; - } else { - PianoArtist_t *curSong = info->artistSeeds; - while (curSong->next != NULL) { - curSong = curSong->next; - } - curSong->next = bag.artist; - } - } else if (bag.station != NULL) { - bag.station->seedId = bag.seedId; - - if (info->stationSeeds == NULL) { - info->stationSeeds = bag.station; - } else { - PianoStation_t *curStation = info->stationSeeds; - while (curStation->next != NULL) { - curStation = curStation->next; - } - curStation->next = bag.station; - } - } else { - free (bag.seedId); - } - } - } else if (strcmp ("feedback", key) == 0) { - const ezxml_t dataNode = ezxml_get (value, "array", 0, "data", -1); - for (ezxml_t feedbackNode = ezxml_child (dataNode, "value"); feedbackNode; - feedbackNode = feedbackNode->next) { - if (PianoXmlParsePlaylistStruct (feedbackNode, &info->feedback) != - PIANO_RET_OK) { - break; - } - } - } -} - -/* parse getStation response - */ -PianoReturn_t PianoXmlParseGetStationInfo (char *xml, - PianoStationInfo_t *stationInfo) { - ezxml_t xmlDoc, dataNode; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) { - return ret; - } - - dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1); - PianoXmlStructParser (dataNode, PianoXmlParseGetStationInfoCb, stationInfo); - - ezxml_free (xmlDoc); - - return PIANO_RET_OK; -} - |